INSTRUCTION MANUALDIGITAL MULTIMETER

DL-2141

DL-2142

B71-0420-11

DL-2142G

■ About a trademark, a registered trademark
A company name and the brand name mentioned in this instruction
manual are the trademark or the registered trademark of eachcompany or group in each country and region.
■ About this instruction manual
When copying the part or all of contents of this instruction manual,
seek the copyright holder.
In addition, the specifications of the product and the contents ofthis instruction manual are subject to change without notice for
improvement. Please check to our website for the latest version.

Table of Contents
USING THE PRODUCT SAFELY...................................................Ⅰ-Ⅴ

1. GETTING STARTED ................................................. 1
1-1. Characteristics ..................................................... 1
1-2. Front Panel .......................................................... 2
1-3. Display Overview .................................................. 6
1-4. Rear Panel ........................................................... 7
1-5. Set Up ................................................................. 8
1-5-1. Tilting the Stand ............................................................... 8
1-5-2. Power Up ......................................................................... 9
1-5-3. How to Use the Instrument .............................................. 9
2. OPERATION ............................................................ 122-1. Basic Measurement Overview ............................. 12
2-1-1. Refresh Rate .................................................................. 12
2-1-2. Reading Indicator ........................................................... 12
2-1-3. Automatic/Manual Triggering ......................................... 122-2. AC/DC Voltage Measurement .............................. 13
2-2-1. Select the Voltage Range .............................................. 14
2-2-2. Voltage Conversion Table ............................................. 15
2-2-3. Crest Factor Table ......................................................... 16
2-3. AC/DC Current Measurement .............................. 16
2-3-1. Select the Current Range .............................................. 17
2-4. Resistance Measurement .................................... 19
2-4-1. Select the Resistance Range ........................................ 20
2-5. Diode Test .......................................................... 20
2-6. Capacitance Measurement .................................. 21
2-6-1. Select the Capacitance Range ...................................... 22
2-7. Continuity Test .................................................... 22
2-7-1. Set Continuity Threshold................................................ 23
2-7-2. Continuity Beeper Settings ............................................ 24
2-8. Frequency/Period Measurement .......................... 24
2-8-1. Frequency/Period Voltage Range Settings ................... 25
2-9. Temperature Measurement .................................. 26
2-9-1. Set the Temperature Units ............................................. 27
2-9-2. Select Thermocouple Type ............................................ 27
2-9-3. Set the Reference Junction Temperature...................... 28
2-10. Dual Measurement Overview ............................. 29
2-10-1. Supported dual measurement modes ......................... 29
2-10-2. Using Dual Measurement Mode .................................. 29

3. Advanced Measurement Overview ............................ 33
3-1. Supported Advanced Measurement Functions ...... 33
3-2. dBm/dB/W Measurement ..................................... 33
3-2-1. dBm/dB Calculation ....................................................... 33
3-2-2. Measuring dBm/W ......................................................... 34
3-2-3. Measure dB .................................................................... 35
3-3. Max/Min Measurement ........................................ 35
3-4. Relative Measurement ........................................ 36
3-5. Hold Measurement .............................................. 37
3-6. Compare Measurement ....................................... 38
3-7. Math Measurement ............................................. 39
3-7-1. Math Measurement Overview ........................................ 39
3-7-2. Measure MX+B .............................................................. 39
3-7-3. Measure 1/X ................................................................... 40
3-7-4. Measure Percentage...................................................... 40
4. SYSTEM/DISPLAY CONFIGURATION ...................... 42
4-1. View Serial Number ............................................ 42
4-2. View Version Number .......................................... 42
4-3. Brightness Settings ............................................. 42
4-4. Input Resistance Settings .................................... 43
4-5. Frequency/Period Input Jack Settings .................. 43
4-6. Compatibility Settings ......................................... 44
4-7. Restore Factory Default Settings ......................... 45
5. USB STORE ............................................................ 46
5-1. USB Store Overview ........................................... 46
5-1-1. CSV Format ................................................................... 46
5-1-2. Filename/Folder Format................................................. 47
5-1-3. Operator Mode ............................................................... 48
5-1-4. Long Record Mode ........................................................ 49
5-2. View the Store Function Status ............................ 49
5-3. Set the Starting File Name (Advance Mode only) .. 50
5-4. Save Count (Advance Mode only) ........................ 51
5-5. Save to an Existing File (Advance Mode only) ...... 52
5-6. Time Mode (Advance Mode only) ......................... 52
5-7. Timer ................................................................. 53
5-8. Date ................................................................... 53
5-9. Save to USB ....................................................... 54
5-9-1. Save to USB (Simple Mode) .......................................... 54
5-9-2. Save to USB (Advance Mode) ....................................... 55
5-9-3. Deleting Files or Directories ........................................... 56

6. REMOTE CONTROL ................................................ 58
6-1. Configure Remote Control Interface ..................... 58
6-1-1. USB Interface ................................................................. 58
6-1-2. GP-IB Interface .............................................................. 59
6-2. Return to Local Control ....................................... 60
7. COMMAND OVERVIEW ........................................... 61
7-1. Command Syntax ............................................... 61
7-2. CONFigure Commands ....................................... 64
7-2-1. CONFigure:VOLTage:DC .............................................. 64
7-2-2. CONFigure:VOLTage:AC .............................................. 64
7-2-3. CONFigure:VOLTage:DCAC ......................................... 64
7-2-4. CONFigure:CURRent:DC .............................................. 64
7-2-5. CONFigure:CURRent:AC .............................................. 64
7-2-6. CONFigure:CURRent:DCAC ......................................... 64
7-2-7. CONFigure:RESistance ................................................. 65
7-2-8. CONFigure:FREQuency ................................................ 65
7-2-9. CONFigure:PERiod ........................................................ 65
7-2-10. CONFigure:CONTinuity ............................................... 65
7-2-11. CONFigure:DIODe ....................................................... 65
7-2-12. CONFigure:TEMPerature:TCOuple ............................. 65
7-2-13. CONFigure:CAPacitance ............................................. 65
7-2-14. CONFigure:FUNCtion? ................................................ 66
7-2-15. CONFigure:RANGe? ................................................... 66
7-2-16. CONFigure:AUTO ........................................................ 66
7-2-17. CONFigure:AUTO? ...................................................... 66
7-3. Secondary Display: CONFigure2 Commands ........ 66
7-3-1. CONFigure2:VOLTage:DC ............................................ 66
7-3-2. CONFigure2:VOLTage:AC ............................................ 66
7-3-3. CONFigure2:CURRent:DC ............................................ 67
7-3-4. CONFigure2:CURRent:AC ............................................ 67
7-3-5. CONFigure2:RESistance ............................................... 67
7-3-6. CONFigure2:FREQuency .............................................. 67
7-3-7. CONFigure2:PERiod ...................................................... 67
7-3-8. CONFigure2:OFF ........................................................... 67
7-3-9. CONFigure2:FUNCtion? ................................................ 67
7-3-10. CONFigure2:RANGe? ................................................. 68
7-3-11. CONFigure2:AUTO ...................................................... 68
7-3-12. CONFigure2:AUTO? .................................................... 68
7-4. Measure Commands ........................................... 68
7-4-1. MEASure:VOLTage:DC? ............................................... 68
7-4-2. MEASure:VOLTage:AC? ............................................... 68

7-4-3. MEASure:VOLTage:DCAC? .......................................... 68
7-4-4. MEASure:CURRent:DC? ............................................... 69
7-4-5. MEASure:CURRent:AC? ............................................... 69
7-4-6. MEASure:CURRent:DCAC? .......................................... 69
7-4-7. MEASure:RESistance? .................................................. 69
7-4-8. MEASure:FREQuency? ................................................. 69
7-4-9. MEASure:PERiod? ........................................................ 69
7-4-10. MEASure:CONTinuity? ................................................ 69
7-4-11. MEASure:DIODe? ........................................................ 70
7-4-12. MEASure:TEMPerature:TCOuple? ............................. 70
7-4-13. MEASure2:VOLTage:DC? ........................................... 70
7-4-14. MEASure2:VOLTage:AC? ........................................... 70
7-4-15. MEASure2:CURRent:DC? ........................................... 70
7-4-16. MEASure2:CURRent:AC? ........................................... 70
7-4-17. MEASure2:RESistance? .............................................. 71
7-4-18. MEASure2:FREQuency? ............................................. 71
7-4-19. MEASure2:PERiod? .................................................... 71
7-5. SENSe Commands ............................................. 71
7-5-1. [SENSe:]TEMPerature:TCOuple:TYPE......................... 71
7-5-2. [SENSe:]TEMPerature:TCOuple:TYPE?....................... 71
7-5-3. [SENSe:]TEMPerature:RJUNction:SIMulated ............... 71
7-5-4. [SENSe:]TEMPerature:RJUNction:SIMulated? ............. 71
7-5-5. [SENSe:]DETector:RATE .............................................. 72
7-5-6. [SENSe:]DETector:RATE? ............................................ 72
7-5-7. [SENSe:]FREQuency:INPutjack .................................... 72
7-5-8. [SENSe:]FREQuency:INPutjack? .................................. 72
7-5-9. [SENSe:]PERiod:INPutjack ........................................... 72
7-5-10. [SENSe:]PERiod:INPutjack? ....................................... 72
7-5-11. [SENSe:]CONTinuity:THReshold ................................ 72
7-5-12. [SENSe:]CONTinuity:THReshold? .............................. 72
7-5-13. [SENSe:]UNIT .............................................................. 72
7-5-14. [SENSe:]UNIT? ............................................................ 72
7-5-15. [SENSe:]FUNCtion[1/2] ............................................... 73
7-5-16. [SENSe:]FUNCtion[1/2]? ............................................. 73
7-6. CALCulate Commands ........................................ 73
7-6-1. CALCulate:FUNCtion ..................................................... 73
7-6-2. CALCulate:FUNCtion? ................................................... 73
7-6-3. CALCulate:STATe ......................................................... 73
7-6-4. CALCulate:STATe? ....................................................... 73
7-6-5. CALCulate:MINimum? ................................................... 73
7-6-6. CALCulate:MAXimum? .................................................. 74

7-6-7. CALCulate:HOLD:REFerence ....................................... 74
7-6-8. CALCulate:HOLD:REFerence? ..................................... 74
7-6-9. CALCulate:REL:REFerence .......................................... 74
7-6-10. CALCulate:REL:REFerence? ...................................... 74
7-6-11. CALCulate:LIMit:LOWer .............................................. 74
7-6-12. CALCulate:LIMit:LOWer? ............................................ 74
7-6-13. CALCulate:LIMit:UPPer ............................................... 74
7-6-14. CALCulate:LIMit:UPPer? ............................................. 74
7-6-15. CALCulate:DB:REFerence .......................................... 74
7-6-16. CALCulate:DB:REFerence? ........................................ 75
7-6-17. CALCulate:DBM:REFerence ....................................... 75
7-6-18. CALCulate:DBM:REFerence? ..................................... 75
7-6-19. CALCulate:MATH:MMFactor ....................................... 75
7-6-20. CALCulate:MATH:MMFactor? ..................................... 75
7-6-21. CALCulate:MATH:MBFactor ........................................ 75
7-6-22. CALCulate:MATH:MBFactor?...................................... 75
7-6-23. CALCulate:MATH:PERCent ........................................ 75
7-6-24. CALCulate:MATH:PERCent? ...................................... 75
7-6-25. CALCulate:NULL:OFFSet ............................................ 75
7-6-26. CALCulate:NULL:OFFSet? .......................................... 76
7-7. TRIGger Commands ........................................... 76
7-7-1. READ? ........................................................................... 76
7-7-2. VAL1? ............................................................................ 76
7-7-3. VAL2? ............................................................................ 76
7-7-4. TRIGger:SOURce .......................................................... 76
7-7-5. TRIGger:SOURce? ........................................................ 76
7-7-6. TRIGger:AUTO .............................................................. 76
7-7-7. TRIGger:AUTO? ............................................................ 76
7-7-8. SAMPle:COUNt.............................................................. 77
7-7-9. SAMPle:COUNt? ........................................................... 77
7-7-10. TRIGger:COUNt ........................................................... 77
7-7-11. TRIGger:COUNt?......................................................... 77
7-8. SYSTem Related Commands ............................... 77
7-8-1. SYSTem:BEEPer:STATe............................................... 77
7-8-2. SYSTem:BEEPer:STATe? ............................................ 77
7-8-3. SYSTem:BEEPer:ERRor ............................................... 77
7-8-4. SYSTem:BEEPer:ERRor? ............................................. 77
7-8-5. SYSTem:ERRor? ........................................................... 77
7-8-6. SYSTem:VERSion? ....................................................... 78
7-8-7. SYSTem:DISPlay ........................................................... 78
7-8-8. SYSTem:DISPlay? ......................................................... 78

7-8-9. SYSTem:SERial? ........................................................... 78
7-8-10. SYSTem:SCPi:MODE.................................................. 78
7-8-11. SYSTem:SCPi:MODE?................................................ 78
7-8-12. INPut:IMPedance:AUTO .............................................. 78
7-8-13. INPut:IMPedance:AUTO?............................................ 78
7-9. STATus Report Commands .................................. 78
7-9-1. STATus:QUEStionable:ENABle .................................... 78
7-9-2. STATus:QUEStionable:ENABle? .................................. 78
7-9-3. STATus:QUEStionable:EVENt? .................................... 79
7-9-4. STATus:PRESet ............................................................ 79
7-10. Interface Commands ......................................... 79
7-10-1. SYSTem:LOCal ........................................................... 79
7-10-2. SYSTem:REMote......................................................... 79
7-10-3. SYSTem:RWLock ........................................................ 79
7-11. IEEE 488.2 Common Commands ....................... 79
7-11-1. *CLS ............................................................................. 79
7-11-2. *ESE? ........................................................................... 79
7-11-3. *ESE ............................................................................. 79
7-11-4. *ESR? .......................................................................... 80
7-11-5. *IDN? ............................................................................ 80
7-11-6. *OPC? .......................................................................... 80
7-11-7. *OPC ............................................................................ 80
7-11-8. *PSC? .......................................................................... 80
7-11-9. *PSC ............................................................................ 80
7-11-10. *RST ........................................................................... 80
7-11-11. *SRE? ........................................................................ 80
7-11-12. *SRE .......................................................................... 80
7-11-13. *STB? ......................................................................... 80
7-11-14. *TRG .......................................................................... 81
8. FAQ ........................................................................ 82
9. APPENDIX .............................................................. 83
9-1. System Menu Tree .............................................. 83
9-2. Factory Default Settings ...................................... 84
9-3. Replacing the AC Source Fuse ............................ 84
9-4. Replacing the Input Fuse .................................... 85
9-5. Status system ..................................................... 86
9-6. Specifications ..................................................... 87
9-6-1. General Specifications ................................................... 87
9-6-2. DC Voltage ..................................................................... 87
9-6-3. DC Current ..................................................................... 88
9-6-4. AC Voltage, ACV+DCV[3] (AC Coupled) ........................ 88

9-6-5. AC Current, ACI+DCI[3] (AC Coupled) .......................... 89
9-6-6. Resistance ..................................................................... 89
9-6-7. Diode .............................................................................. 89
9-6-8. Continuity ....................................................................... 89
9-6-9. Capacitance ................................................................... 90
9-6-10. Frequency .................................................................... 90
9-6-11. Temperature................................................................. 91
9-6-12. Accessories .................................................................. 91
9-7. Dimensions ........................................................ 91

USING THE PRODUCT SAFELY■ Preface
To use the product safely, read this instruction manual to the end.
Before using this product, understand how to correctly use it.
If you read this manual but you do not understand how to use it, pleaseask us or your local dealer. After you read this manual, save it so that you
can read it, anytime as required.

■ Pictorial indication
This instruction manual and product show the warning and caution items
required to safely use the product. The following pictorial indication andwarning character indication are provided.

<Pictorial indication>! WARNING! CAUTION

Some part of this product or the instruction manual
may show this pictorial indication. In this case, if the
product is incorrectly used in that part, a serious
danger may be brought about on the user’s body or
the product.
To use the part with this pictorial indication, be sure torefer to this instruction manual.
If you use the product, ignoring this indication, you
may get killed or seriously injured. This indicationshows that the warning item to avoid the danger isprovided.
If you incorrectly use the product, ignoring thisindication, you may get slightly injured or the productmay be damaged. This indication shows that thecaution item to avoid the danger is provided.

Please be informed that we are not responsible for any damages to the user orto the third person, arising from malfunctions or other failures due to wrong
use of the product or incorrect operation, except such responsibility fordamages as required by law.

IUSING THE PRODUCT SAFELY! WARNING! CAUTION■ Do not remove the product’s covers and panels
Never remove the product’s covers and panels for any purpose.
Otherwise, the user’s electric shock or fire may be incurred.

■ Warning on using the productWarning items given below are to avoid danger to user’s body and life andavoid the damage or deterioration of the product.
Use the product, observing the following warning and caution items.

■ Warning items on power supply● Power supply voltage
The rated power supply voltages of the product are 100, 120, 220 and
240VAC. The rated power supply voltage for each product should be
confirmed by reading the label attached on the back of the product orby the “rated” column shown in this instruction manual.
The specification of power cord attached to the products is rated to
125VAC for all products which are designed to be used in the areas
where commercial power supply voltage is not higher than 125VAC.
Accordingly, you must change the power cord if you want to use theproduct at the power supply voltage higher than 125VAC. If you use
the product without changing power cord to 250VAC rated one,electric shock or fire may be caused.
When you used the product equipped with power supply voltage
switching system, please refer to the corresponding chapter in the
instruction manuals of each product.
● Power cord
(Important)

The attached power cord set can be used for thisdevice only.
If the attached power cord is damaged, stop using the product and call
us or your local dealer. If the power cord is used without the damage
being removed, an electric shock or fire may be caused.

● Protective fuse
If an input protective fuse is blown, the product does not operate. For a
product with external fuse holder, the fuse may be replaced. As for
how to replace the fuse, refer to the corresponding chapter in this
instruction manual.
If no fuse replacement procedures are indicated, the user is not
permitted to replace it. In such case, keep the case closed and consult
us or your local dealer. If the fuse is incorrectly replaced, a fire may
occur.

II

USING THE PRODUCT SAFELY■ Warning item on Grounding
If the product has the GND terminal on the front or rear panel surface, besure to ground the product to safely use it.

■ Warnings on Installation environment● Operating temperature and humidity
Use the product within the operating temperature indicated in the “rating”
temperature column. If the product is used with the vents of the productblocked or in high ambient temperatures, a fire may occur.
Use the product within the operating humidity indicated in the “rating”
humidity column. Watch out for condensation by a sharp humidity
change such as transfer to a room with a different humidity. Also, do not
operate the product with wet hands. Otherwise, an electric shock or fire
may occur.
● Use in gas
Use in and around a place where an inflammable or explosive gas or
steam is generated or stored may result in an explosion and fire. Do not
operate the product in such an environment.
Also, use in and around a place where a corrosive gas is generated or
spreading causes a serious damage to the product. Do not operate theproduct in such an environment.
● Installation place
Avoid installing the product on inclined places or on places subject tovibration. Otherwise, the product may slip or fall down to cause
damages or injury accidents.

■ Do not let foreign matter in
Do not insert metal and inflammable materials into the product from its ventand spill water on it. Otherwise, electric shock or fire may occur.

■ Warning item on abnormality while in use
In abnormal situations, such as “smoke”, “fire”, “abnormal smell” or“irregular noise” occur from the product while in use, stop using the product,
turn off the switch, and remove the power cord plug from the outlet. Afterconfirming that no other devices catch fire, ask us or your local dealer.

III

USING THE PRODUCT SAFELY■ Input / Output terminals
Maximum input to terminal is specified to prevent the product frombeing damaged. Do not supply input, exceeding the specifications
that are indicated in the "Rating" column in the instruction manualof the product.
Also, do not supply power to the output terminals from the outside.
Otherwise, a product failure is caused.
■ Calibration
Although the performance and specifications of the product are checked
under strict quality control during shipment from the factory, they may be
deviated more or less by deterioration of parts due to their aging or others.
It is recommended to periodically calibrate the product so that it is usedwith its performance and specifications stable.
For consultation about the product calibration, ask us or your local dealer.

■ Daily Maintenance
When you clean off the dirt of the product covers, panels, and knobs,
avoid solvents such as thinner and benzene. Otherwise, the paint may
peel off or resin surface may be affected.
To wipe off the covers, panels, and knobs, use a soft cloth with neutral
detergent in it. During cleaning, be careful that water, detergent, or otherforeign matters do not get into the product.
If a liquid or metal gets into the product, an electric shock and fire arecaused. During cleaning, remove the power cord plug from the outlet.
Use the product correctly and safely, observing the above warning and caution
items. Because the instruction manual indicates caution items even in
individual items, observe those caution items to correctly use the product.
If you have questions or comments about the instruction manual, ask us or
E-Mail us.

IV1. GETTING STARTEDThis chapter describes the DL-2140 Series in a nutshell, including its
main features, package contents, and front / rear / display panel
introduction. After going through the overview, follow the Power-up
sequence and Functionality check section to properly setup the
DL-2140 Series.

FeatureTemperature
USB Logging
GP-IB

DL-2142
Yes
Yes
-

MODEL
DL-2142G
Yes
Yes
Yes

DL-2141-1-1. Characteristics
The DL-2140 Series are portable, dual-display digital multimeters
suitable for a wide range of applications, such as production testing,research, and field verification.
Performance• DCV accuracy: 0.02%• High current range: 10A• High Voltage range: 1000V• High ACV frequency response: 100kHz
Features• 50000 count display• Multi functions: ACV, DCV, ACI, DCI, R, C, Hz,
Temp*, Continuity, Diode test, MAX/MIN, REL,
dBm, Hold, MX+B, 1/X, REF%, dB, Compare.
• Manual or Auto ranging• AC true RMS• Data Logging to USB*
Interface• Voltage/Resistance/Diode/Capacitance/
Temperature* input• Current input• USB device port as standard for remote control• USB host* for data logging• GP-IB (DL-2142G only)• Calibration port (for service operators only)* These features are available on the DL-2142

1

1-2. Front Panel
Main
Display

DC/AC 0.5A Port,AMPS Fuse Holder
VW
50000 Counts Dual Measurement Multimeter

port

INPUT
V W
CAT

600V

MAX
MAX
0.5A

MAX
500VpkRANGE

DC + AC

POWER
DCI

ACI

dB

dBm

TEMP

ACV

W/

/

Hz/P

REL#

MATH

COMP

INT/EXTUSB STO

REL

MX/MN

HOLD

TRIG

MENU

DCV

LOCAL

FUSE
T0.5A
250V

2ND

1000V
750V

COM port
COM

MAX
12A

Auto
Enter
SHIFT
EXIT

DC/AC 12A
port

RANGE

Power Switch, USB Host
port (DL-2142 only)
Power Switch

Function keys andArrow keys

POWER

Turns Onor Offthe mainpower. For the power up sequence,see page 9.

USB Host Port

The Host port is a type A USB port
for logging data. See the USB Storechapter for more details, page 46.

Main Display

V W

Input

Port
CAT

600V

Note: For DL-2142 /DL-2142G
Shows measurement results and parameters. For
display configuration details, see page 42 (lightsetting).
For an overview of the main display, see page 6.
This port is used for all
INPUT
V W
measurements except for DC/AC
current measurements.
MAX

MAX
0.5A

FUSE
T0.5A
250V

MAX
500Vpk

1000V
750V

COM

MAX
12A

2

INPUT
V W
CAT

600V

COM Port

MAX

MAX
0.5A

FUSE
T0.5A
250V

1000V
750V

MAX
CAT
600V
500Vpk COM

DC/AC 0.5A PortAMPS Fuse
HolderCAT

INPUT

Accepts ground (COM) line in allmeasurements.
The maximum withstand voltage
INPUT
V Wbetween this terminal and earth is
500Vpk.

MAX
12A
MAX
0.5A

V W
600V

FUSE
T0.5A
250V

MAX
0.5A

MAX
500Vpk

MAX
1000V
750V

MAX

DC/AC 12A Port500Vpk
FUSE
T0.5A
250V

COM

MAX
12A

MAX
Low current
measurement port.
1000V
750V DC/AC Current input. For
Accepts
details see page 16.
DC: 500μA~0.5A
AC: 500μA~0.5A
COM
MAX protects the instrument
As a fuse,
12A
from over-current.
Rating: T0.5A,
250V.(This terminal accepts DC/AC
current input)
For the fuse replacement procedure,see page 85.
High range current measurement
port. Accepts DC/AC Current input.
For DCI or ACI details, see page 16.

Measurement
Keys

The top row of measurement keys are used for basic
DMM measurements such as voltage, current,
resistance, capacitance and frequency. The bottom
row of measurement functions are used for moreadvanced functions.
Each key has a primary and secondary function. The
secondary function is accessed in conjunction with
the SHIFT key.
Upper Measurement keys
DCI
DCV
Measures DC Voltage(page 13).
DCV
DCI
(SHIFT→DCV)

DCI
SHIFT
EXIT

ACV

→

DCV

ACI

Measures DC Current(page 16).
Measures AC Voltage(page 13).

ACV

3

ACI
(SHIFT→ACV)

ACI
SHIFT
EXIT

DCV + ACV

→

DCI
DCV

+

EXIT

→

TEMP

→

Measures dB. See page 35.

/

Measures the frequency or period ofa signal, depending on the selected
mode. See page 24.

Hz/P

TEMP
SHIFT
EXIT

LOCAL
2ND

ACV

Tests diodes or measurescapacitance, depending on theselected mode. See page 20 and 21,
respectively.
dBm
Measures dBm. See page 34

/

Hz/P

+

Measures DC + AC
current (page 16).

→ W/

dBm

EXIT

ACI

Measures resistance or continuity,
depending on the selected mode.
See page 19 and22, respectively.
dB

SHIFT

SHIFT

2ND

DCV

W /

dBm
(SHIFT →/)TEMP(SHIFT → Hz/P)

ACV

dB

EXIT

Diode/
Capacitance

Measures DC + AC
voltage(page 13).

DCI
SHIFT

dB
(SHIFT→ Ω/ )

ACV

ACI

DCI+ACI

Resistance/Continuity)

Measures AC
Current(page 16).

→

Hz/P

Measures temperature. See
page 26.

As the 2nd key, selects themeasurement item on the 2nd
display (page 28). Pressing andholding for more than 1 second turns
off the 2nd display.
As the Local key, releases the
remote control and returns the
instrument to local panel operation(page 60).

4

Lower Measurement keys
REL#
REL

Measures the Relative value (page
36).

REL

REL#
(SHIFT→REL)

REL#
SHIFT
EXIT

MX/MN

→

MATH

Measures the Maximum or the
Minimum value (page 35).

MX/MN

MATH

MATH
(SHIFT→
MX/MN)

SHIFT

HOLD

COMP

EXIT

→

HOLD

COMP
(SHIFT→HOLD)

INT/EXTTRIG

INT/EXT(SHIFT→TRIG)

SHIFT
EXIT

MENU

USB STOMENUUSB STO(SHIFT→MENU)Enters the Math measurement
mode. The supported mathfunctions include MX+B,
REF% and 1/X. See page 39
for details.
Activates the Hold function (page
37).

MX/MN

COMP
SHIFT
EXIT

TRIG

REL

Manually sets the reference
value for the Relative value
measurement.

SHIFT
EXIT

→

HOLD

Activates the compare
measurement function. See
page 38.

Triggers sample acquisition manuallywhen the trigger is set to external
triggering. See page 12. (Note: Not
supported for capacitancemeasurement)
INT/EXT
Toggles the trigger source as
either internal or external→ TRIG(manual trigger).
Enters the configuration menu for
System Settings, Measurement
Settings, Temperature measurement
settings, I/O settings and USB
storage settings. See page 42 forthe system menu.
USB STO
Logs measurement data to a
USB drive. This function is→ MENUavailable for the DL-2142. See
page 46.

5

SHIFT/EXIT

When used as a SHIFT key, it isused to access the secondaryfunctions associated with themeasurement keys.
When used as an EXIT key, it will exitout of menu systems.
When used as an AUTO key, it will
set the range of the selected function
to autorange.
When used as an ENTER key, it will
confirm the entered value or menu
item.
The arrow keys are used to navigate
the menu system and edit values.
The Up and Down arrow keys will
also manually set the range for thevoltage and current measurements.
The Left and Right arrow keys will
also toggle the refresh rate between
the fast, medium and slow rates.

SHIFT
EXIT

AUTO/ENTER

Auto
Enter

Arrow Keys

RANGE

RANGE

1-3. Display Overview
Primary measurement units
Primary measurement
Secondary Display
function icons

Secondarymeasurement units

50000 Counts Dual Measurement Multimeter

AC DC 2 W 4 W AUTO F M S HOLD REL MIN MAXRATIO UNCALMEM USB STO n µ F

nµF
C F S WC F S WM k  HzM k  Hzm V Am  V A AC DC 2W 4W AUTOMATHLIMITERR SHIFT EXTdBm
RMT% dB m 2 NDCOMPSTORCLFILT RS232 LANUSB GPIBREAR

Primary Display
Primary Measurement
Function Icons
Primary Measurement
Units
Secondary Display
SecondaryMeasurement Units

Secondarymeasurement
function icons

Function status icons

Displays the primary measurement function.
Displays the units for the primary measurement
function.
Displays the results of the secondary
measurement.
Displays the units for the secondary
measurement function.

6

Secondary
Displays the secondary measurement function.
Measurement function
icons
Function Status Icons Display status icons for operations/functions
that are not linked to the primary or secondaryfunctions.
Primary Display
Displays the results of the primarymeasurement.

1-4. Rear Panel
Optional GPIB port
(DL-2142G only)

LINE RATING
GPIB

50 / 60 Hz
15VA MAX.

Power Cord
Socket

0.063AT

220VAC240VAC

240

100VAC
120VAC

220

LINE

0.125AT

100

120

FUSE

DISCONNECT POWER CORD AND
TEST LEADS BEFORE REPLACING FUSECALIBRATIONUSE ONLYWARNING
SER.NO. LABELTO AVOID SHOCK,REMOVE INPUTS BEFORE OPENING.

USB Device Port,
Calibration Port

Fuse
0.125AT/0.063AT
GPIB

GP-IB Port

120

220

100

Power Cord
Socket

The GP-IB port can beused for remote control.
( DL-2142G only)
Accepts the power cord. AC
100/120/220/240V ±10%,50/60HzFor power on sequence,see page 9.
Holds the main fuse:
100/120 VAC: T 0.125A
220/240 VAC: T 0.063A
For fuse replacement
details, see page 83.

240

Fuse Socket

220

100

120

240

7

Calibration Port

Reserved for calibration
purposes. For service
technicians only.
Type B USB port. This port isused for remote control.

CALIBRATIONUSE ONLY

USB Device

1-5. Set Up
1-5-1. Tilting the Stand
From the base of the handle, gently pull the handle out sideways
and then rotate it to one of the following positions.

Horizontal
position

Tilt standposition

Carry position8

1-5-2. Power Up
Steps

1. Ensure the correct line
voltage is lined up with thearrow on the fuse holder. If
not, see page 83 to set theline voltage and fuse.
2. Connect the power
cord to the ACvoltage input.

Note

Make sure the ground connector on the power
cord is connected to a safety ground. This will
influence the measurement accuracy.
3. Push to turn on themain power switch on
the front panel.

4. The display turns on and shows the last
function that was used before the power was
reset.

1-5-3. How to Use the Instrument
Background

Using theFunction keys

The following section will introduce to you how
to access the basic functions on the DMM aswell as how to navigate the menu system andedit the parameter values.
Any of the primary functions can be used bysimply pressing the desired function key.
For example:
To activate the DCV function, press the DCV
key.
DCI
DCV

9

To activate a secondary function, first press theSHIFT key followed by the function key for thesecondary function.
For example: To activate DCI measurement,
first press the SHIFT key. SHIFT will behighlighted on the display. Next, press the DCV
function key. This will activate the DCI mode.
DCI
SHIFT
EXIT

Navigating the
Menu System→

DCV

The menu system is navigated with the Up, Down,
Left and Right arrow keys, the Auto/Enter key andthe SHIFT/EXIT key.
RANGE

Auto
Enter
SHIFT
EXIT

RANGE

To enter the menu system, press the MENU key.
See page 83 for the System Menu tree.
USB STO
MENU

•
•
•
•

•

Pressing the Left and Right arrow keys will
navigate to each of the menu items on thecurrent menu level.
Pressing the Down key will go down to thenext level of the menu tree.
Conversely pressing the Up key will allow
you to go back to the previous menu level.
Pressing Down or Enter on the last item ina menu tree will allow you to edit thesettings or parameters for that particular
item or setting.
Pressing the Exit key will allow you to exitfrom the current settings and return to theprevious menu tree level.

10Editing a Setting When you access a menu or parameter setting,or Parameterthe Up, Down, Left and Right keys can be usedagain to edit the parameter as well.
RANGE

Auto
Enter

RANGE

•
•
•

If a setting or parameter is flashing, it
indicates that that particular parameter canbe edited.
Pressing the Left or Right arrow key willallow you to select a digit or character to
edit.
Pressing the Up or Down keys will allow
you to edit the selected character.

11

2. OPERATION
2-1. Basic Measurement Overview
2-1-1. Refresh Rate
Background

Refresh rate
(Reading/S)

Steps

Note

The refresh rate defines how frequently theDMM captures and updates measurement data.
A faster refresh rate yields a lower accuracy. A
slower refresh rate yields a higher accuracy.
Consider these tradeoffs when selecting therefresh rate.
For further details, please see thespecifications.
Function
S
M
F
Continuity / Diode1020
40
DCV/DCI/R
51040
ACV/ACI51040Frequency / Period
11076
Capacitance222
1. Press the left or right arrow keys to change therefresh rate.
2. The refresh rate will beF↔M↔Sshown at the top of thedisplay.
The refresh rate cannot be set for capacitancemeasurement.

2-1-2. Reading Indicator
Overview

1. The reading indicator
next to the 1st display
flashes according to the refresh rate setting.
V

2-1-3. Automatic/Manual Triggering
Overview

2. By default, the DL-2140 Series automaticallytriggers according to the refresh rate. See theprevious page for refresh rate setting details.
The TRIG key is used to manually trigger
acquisition when the trigger mode is set to EXT.

12

Manual Trigger

Note

1. Press SHIFT+TRIG to toggle the trigger mode
to EXT.
2. Press the TRIG key to manually trigger eachmeasurement when in EXT trigger mode.
Manual triggering is not supported forcapacitance measurements.

2-2. AC/DC Voltage Measurement
The DL-2140 Series can measure from 0 to 750VAC or 0 to 1000VDC,
however the CATII measurement is only rated up to 600V.
Set to ACV/DCV 1. Press the DCV or ACV key to measure DC or
Measurement
AC voltage.
For AC + DC voltage, press the ACV and DCV
keys at the same time.
2. The mode will switch to AC, DC or AC+DC
mode immediately, as shown below.
AC & DC
Voltage
Measurement
indicator
units
range
AC DC

S

V

Connection

Connect the test lead between the V and the
COM port. The display updates the reading.

INPUT
V W
CAT

600V

MAX

MAX
0.5A

FUSE
T0.5A
250V

MAX
500Vpk

1000V
750V

COM

13

MAX
12A

2-2-1. Select the Voltage Range
The voltage range can be set automatically or manually.
Auto Range
1. To turn the automatic range selection On/Off,press the AUTO key.
Manual Range 2. Press the Up or the Down key to select therange. The AUTO indicator turns Off
automatically. If the appropriate range is
unknown, select the highest range.
Selectable
Range
Resolution
Full scale
Voltage Ranges 500mV
10uV
510.00mV
5V
0.1mV
5.1000V
50V
1mV
51.000V
500V
10mV
510.00V
750V (AC)100mV765.0V
1000V (DC)100mV
1020.0V
For further details, please see theNotespecifications on page 87.
DC voltages with AC components cannot be
Noteaccurately measured if the DC+AC component
exceeds the dynamic range for the selected
DC range. Any voltage exceeding the dynamic
range will be clipped at the upper/lower range
limit. Under these conditions the range that ischosen with the Auto range function may be
too small.
For example:
A

C

D

Dynamic Range
0V
Dynamic Range
E
B
A,B: Input exceeds the dynamic range.
C,D: The DCV offset causes the input toexceed the upper dynamic range.
E: The DCV offset causes the input to exceed
the lower dynamic range.
The DC voltage range should be manually
selected when all of the following conditions
are true:14• When DCV measurement is used.
• When the signals being measured contain both

DC and AC components.
• When the amplitude of the AC component in

the measured signal is higher or lower than the
dynamic range of the range being currently
selected by the auto-range function.
Maximum DCV Selected DCV Range
Dynamic Range DC 500mV
DC 5V
DC 50V
DC 500V
DC 1000V

Dynamic Range±600mV max±6V max±60V max±600V max
±1000V max

2-2-2. Voltage Conversion Table
This table shows the relationship between an AC and DC reading forvarious waveforms.
Waveform
Peak to Peak AC (True RMS)
DC
Sine
PK-PK

Rectified Sine (full wave)
PK-PK

Rectified Sine (half wave)
PK-PK

2.828

1.000

0.000

1.414

0.435

0.900

2.000

0.771

0.636

2.000

1.000

0.000

1.414

0.707

0.707

SquarePK-PK

Rectified Square
PK-PK

Rectangular Pulse
X

PK-PK

2K
2.000

K=

Y

2D

( D  D 2)

D=X/Y

D=X/Y

1.000

0.000

Triangle Sawtooth
PK-PK

3.464

15

2-2-3. Crest Factor Table
Background

Crest Factor
Table

1. Crest factor is the ratio of the peak signal
amplitude to the RMS value of the signal. It
determines the accuracy of AC measurement.
If the crest factor is less than 3.0, voltage
measurement will not result in error due todynamic range limitations at full scale.
If the crest factor is more than 3.0, it usuallyindicates an abnormal waveform as seen fromthe below table.
Waveform
Shape
Crest factor
Square wave

1.0

Sine wave

1.414

Triangle sawtooth
Mixed frequencies
SCR output
100% ~ 10%
White noise
AC Coupled pulse
train

1.732
1.414 ~ 2.0

Spike

>9.0

1.414 ~ 3.0
3.0 ~ 4.0
>3.0

2-3. AC/DC Current Measurement
The DL-214X Series DMMs have two input ports for current
measurement. A 0.5A terminal for current less than 0.5A and a 10A
port for measurements up to 12A.
The units can measure 0 ~ 10A for both AC and DC current.
Set to ACI/DCI 1. Press SHIFT → DCV or SHIFT → ACV to
Measurement
measure DC or AC current, respectively.
2. For AC+DC current, press SHIFT followed byboth the DCV and ACV key at the same time.
3. The mode will switch to AC, DC or AC+DC
mode immediately, as shown below.

16

AC & DC
indicator
AC DC

Current
units

AUTO

Measurement
range

S

A

Connection

Connect the test lead between the 10A terminal
and the COM port or DC/AC 0.5A port and the
COM port, depending on the input current.
For current ≤ 0.5A use the 0.5A port; For
current up to 12A use the 10A port. The display
updates the reading.

INPUT
V W
CAT

600V

MAX

MAX
0.5A

MAX
500Vpk

COM

MAX
12A

Max 12A

FUSE
T0.5A
250V

1000V
750V

Max 0.5A

2-3-1. Select the Current Range
The current range can be set automatically or manually.
Auto Range
To turn the automatic range selection On/Off,press the AUTO key. The most appropriate
range for the currently used input jack will be
automatically selected. The DMM is able to do
this by remembering the last manually selected
range and using that information to determine
the smallest current range that the auto-range

17

Manual Range

Selectable
Current Ranges

Note
Note

function will switch to.
When the current input is switched to anotherterminal, the range must be manually set.
Press the Up or the Down key to select therange. The AUTO indicator turns Off
automatically. If the appropriate range is
unknown, select the highest range.
Range Resolution Full scale
INJACK
500µA
10nA
510.00μA 500mA
5mA
100nA
5.1000mA 500mA
50mA
1μA
51.000mA 500mA
500mA
10μA
510.00mA 500mA
5A
100μA
5.1000A
12A
10A
1mA
12.000A
12A
For further details, please see the specifications
on page 87.
DC currents with AC components cannot be
accurately measured if the DC+AC component
exceed the dynamic range for the selected DC
range. Any current exceeding the dynamic
range will be clipped at the upper/lower range
limit. Under these conditions the range that ischosen with the Auto range function may be too
small.
For example:
A
C
D
Dynamic Range
0V
Dynamic Range
E
B
A,B: Input exceeds the dynamic range.
C,D: The DCI offset causes the input to exceed
the upper dynamic range.
E: The DCI offset causes the input to exceed
the lower dynamic range.
The DC current range should be manually
selected when all of the following conditions aretrue:• When DCI measurement is used.
• When the signals being measured containboth DC and AC components.

18• When the amplitude of the AC component inMaximum DCI
Dynamic Range

the measured signal is higher or lower thanthe dynamic range of the range being
currently selected by the auto-range function.
Selected DCI Range
Dynamic Range
DC 500μA±600μA max
DC 5mA±6mA max
DC 50mA±60mA max
DC 500mA±600mA max
DC 5A±6A max
DC 10A±12A max

2-4. Resistance Measurement
Set to Ω
Measurement

Display

1. Press the Ω/ key to activate resistancemeasurement.
Note: pressing the Ω/ key twice will activate
continuity measurement instead.
2. The mode will switch to resistance mode
immediately, as shown below.
Resistance Resistance Measurement
indicator
units
range
2W

AUTO

S
k W

Connection

The DL-2140 Series uses 2-wire resistancemeasurement.
Connect the test leads between the VΩport and the COM port.

INPUT
V W
CAT

600V

MAX

MAX
0.5A

FUSE
T0.5A
250V

MAX
500Vpk

1000V
750V

COM

19

MAX
12A

2-4-1. Select the Resistance Range
The resistance range can be set automatically or manually.
Auto Range
1. To turn the automatic range selection On/Off,press the AUTO key.
Manual Range 2. Press the Up or the Down key to select therange. The AUTO indicator turns Off
automatically. If the appropriate range is
unknown, select the highest range.
Selectable
Range
Resolution Full scale
Resistance
500Ω
10mΩ
510.00Ω
Ranges5kΩ
100mΩ
5.1000kΩ
50kΩ
1Ω
51.000kΩ
500kΩ
10Ω
510.00kΩ
5MΩ100Ω
5.1000MΩ
50MΩ
1kΩ
51.000MΩ
For further details, please see the specifications
Note
on page 89.

2-5. Diode Test
The diode test checks the forward bias characteristics of a diode byrunning a constant forward bias current of approximately 0.83mA
through the DUT.
Set to Diode
1. Press the / key once to activate diodeMeasurement
measurement.
Note: pressing the / key twice will activate
the capacitance measurement instead.
2. The mode will switch to Diode mode
immediately, as shown below.
Diode
Diode function
Display
state
indicator
S

V

Connection

Connect the test lead between the VΩ
port
and COM port; Anode-V, Cathode-COM. The
display updates the reading.

20

INPUT
V W
CAT

600V

MAX

MAX
0.5A

FUSE
T0.5A
250V

MAX
500Vpk

1000V
750V

COM

MAX
12A

2-6. Capacitance Measurement
The capacitance measurement function checks the capacitance of acomponent.
Set to1. Press the / key twice to activate
capacitance measurement.
Capacitance
Note: pressing the / key once will activate
Measurement
the diode measurement instead.
2. The mode will switch to capacitance mode
immediately, as shown below.
Display
Capacitance Capacitance
Measurement
indicator
units
range
S
nF

Connection

Connect the test lead between the VΩ
port
and COM port; Positive-V, Negative-COM. The
display updates the reading.

21

INPUT
V W
CAT

600V

MAX

MAX
0.5A

FUSE
T0.5A
250V

MAX
500Vpk

1000V
750V

COM

MAX
12A

2-6-1. Select the Capacitance Range
The capacitance range can be set automatically or manually.
Auto Range
1. To turn the automatic range selection On/Off,press the AUTO key.
Manual Range 2. Press the Up or the Down key to select therange. The AUTO indicator turns Off
automatically. If the appropriate range is
unknown, select the highest range.
Selectable
Range
Resolution Full scale
Capacitance
5nF
1pF
5.100nF
Ranges
50nF
10pF
51.00nF
500nF
100pF
510.0nF
5μF
1nF
5.100μF
50μF
10nF
51.00μF
For further details, please see the specifications
Note
on page 89.
The refresh rate settings and the EXT trigger
Notecannot be used in the capacitance mode.

2-7. Continuity Test
The continuity test checks that the resistance in the DUT is low
enough to be considered continuous (of a conductive nature).
Procedure
1. Press the Ω/ key twice to activate continuity
testing.
2. The mode will switch to continuity testing
immediately, as shown below.

22Display

Continuity
stateContinuity function
indicator

S
W

Connection

Connect the test lead between the VΩport and COM port. The display updates thereading.

INPUT
V W
CAT

600V

MAX

MAX
0.5A

FUSE
T0.5A
250V

MAX
500Vpk

1000V
750V

COM

MAX
12A

2-7-1. Set Continuity Threshold
The continuity threshold defines the maximum resistance allowed in
the DUT when testing the continuity.
Range
Threshold0 to 1000Ω (Default:10 Ω)
Resolution1Ω
Procedure
1. Press MENU.
2. Go to the MEAS menu on level 1
3. Go to the CONT menu on level 2
4. Set the continuity threshold level.
5. Press the Enter key to confirm the continuity
settings.
6. Press EXIT to exit the CONT setting menu.

23

Display

Continuity
setting

Continuity function
indicatorW

7.

2-7-2. Continuity Beeper Settings
The beeper setting defines how the DL-2140 Series notifies thecontinuity test result to the user.
Note: When the Beeper setting is off it will also turn off the keypad
tones as well as any error or warning tones.
Settings
PASS
Beeps when the continuity
passes.
FAIL
Beeps when the continuity fails.
OFF
Beeper is turned off.
Procedure
1. Press MENU.
2. Go to the SYSTEM menu on level 1
3. Go to the BEEP menu on level 2
4. Set the BEEP setting to PASS, FAIL or OFF.
5. Press the AUTO/ENTER key to confirm the
beeper settings.
6. Press EXIT to exit the BEEP setting menu.
Display
Beep
Beep menu
setting
indicator

7.

2-8. Frequency/Period Measurement
The DL-2140 Series can be used to measure the frequency or periodof a signal.
Range
Frequency
10Hz~1MHz
Period
1.0μs ~100ms
Procedure
1. To measure frequency, press the Hz/P key
once. FREQ will be displayed on the secondary
display.
To measure the period, press the Hz/P key
twice. PERIOD will be displayed on thesecondary display.

24

DisplayFrequency or Voltage/Current
range setting
Measurement period units
AUTO

S
k

Connection

Hz

Connect the test lead between the VΩ
port
and the COM port. The display updates thereading.
INPUT
V W
CAT

600V

MAX

MAX
0.5A

FUSE
T0.5A
250V

MAX
500Vpk

1000V
750V

COM

MAX
12A

2-8-1. Frequency/Period Settings
The input voltage range for frequency/period measurements can be
set to Auto range or to manual. By default, the voltage/current range is
set to Auto for both the period and frequency.
Range
Voltage 500mV, 5V, 50V, 500V, 750V
Current 500μA, 5mA, 50mA, 500mA, 5A, 10A
Manual Range 1. Set the range with the Up and Down keys. The
AUTO indicator will turn off when a new range
is selected.
Autorange
1. Press the Auto/Enter key.
2. AUTO will be displayed on the screen again.
Display
Autorange
Voltage/Current
indicator
range setting
AUTO
k

25

Hz

Note

The 2nd key can be used to toggle the view ofthe second display between the voltage/current
range and the menu function (FREQ orPERIOD).
Note that the voltage/current range can actually
still be set even when the secondary display
has been toggled to show the menu function.

2-9. Temperature Measurement
The DL-2142 can measure temperature using a thermocouple. To
measure temperature, the DMM accepts a thermocouple input andcalculates the temperature from the voltage fluctuation. The
thermocouple type and reference junction temperature are also
considered. Temperature measurement is only supported on the DL2142.
Range
Thermocouple: -200°C ~ +300°C
Procedure
To make temperature measurements, press
SHIFT → Hz/P (TEMP).
The temperature mode appears showing thetemperature on the primary display and the typeof sensor on the secondary display.
Display
Temp.
Measurement units
Sensor typeS
C

Connection

Connect the sensor lead between the VΩport and the COM port. The display updates thereading.

26

INPUT
V W
CAT

600V

MAX

MAX
0.5A

FUSE
T0.5A
250V

MAX
500Vpk

1000V
750V

COM

MAX
12A

2-9-1. Set the Temperature Units
Range
Procedure

DisplayUnits
˚C, ˚F
1. Press the MENU key.
2. Go to TEMP on level 1.
3. Go to UNIT on level 2.
4. Select either C (Celsius) or F (Farenheit).
5. Press the Enter key to confirm.
6. Press the EXIT key to exit from the temperature
menu.
Temperature
Unit menu
unit setting
indicator

7.

2-9-2. Select Thermocouple TypeThe DL-2142 accepts thermocouple inputs and calculates thetemperature from the voltage difference of two dissimilar metals.
Thermocouple type and reference junction temperature are also
considered.
Thermocouple
Type
Measurement Range
Resolution
type and range
J-200 to +300˚C
0.1 °C
K-200 to +300˚C
0.1 °C
T-200 to +300˚C
0.1 °C27

Procedure

Display

1. Press the MENU key.
2. Go to TEMP on level 1.
3. Go to SENSOR on level 2.
4. Select the thermocouple type (J, K, T).
5. Press the Enter key to confirm.
6. Press the EXIT key to exit from the temperature
menu.
Thermocouple
Sensor menu
type setting
indicator

2-9-3. Set the Reference Junction Temperature
When a thermocouple is connected to the DMM, the temperature
difference between the thermocouple lead and the DMM input terminal
should be taken into account and be cancelled out; otherwise anerroneous temperature might be added. The value of the reference
junction temperature(accurate room temperature) should bedetermined by the user.
Range
SIM
0 ~ 50˚C (default: 23.00˚C)
Resolution
0.01˚C
Procedure
1. Press the MENU key.
2. Go to TEMP on level 1.
3. Go to SIM on level 2.
4. Set the SIM (simulated) reference junction
temperature to the value of room temperature.
5. Press the Enter key to confirm.
6. Press the EXIT key to exit from the temperature
menu.
Display
Reference junction
SIM menu
temperature setting
indicator

If the set room temperature is not accurate, the measurement error will
increase.

28

2-10. Dual Measurement Overview
The dual measurement mode allows you to use the 2nd display toshow another item, thus viewing two different measurement results at
once.
When the multimeter is used in dual measurement mode, both
displays are updated from either a single measurement or from two
separate measurements. If the primary and secondary measurement
modes have the same range, rate and rely on the same fundamental
measurement, then a single measurement is taken for both displays;
such as ACV and frequency/period measurements. If the primary andsecondary displays use different measurement functions, ranges orrates, then separate measurements will be taken for each display. For
example, ACV and DCV measurements.
Most of the basic measurement functions, except forresistance/continuity can be used in the dual measurement mode.

2-10-1. Supported dual measurement modes
The following table lists all the measurement functions that aresupported with the dual measurement function.
Supported Dual
Primary
Secondary Display
Measurement
Display
ACV DCV ACI DCI Hz/P
modes
ACV
●
●
●
●
●
DCV
●
●
●
●
X
ACI
●
●
●
●
●
DCI
●
●
●
●
X
Hz/P
●
X
●
X
●
Ω
X
X
X
X
X

Ω
X
X
X
X
X
●

2-10-2. Using Dual Measurement Mode
Procedure

1. Choose one of the basic measurement
functions from the table above to set themeasurement mode for the primary display.
2. For example, press DCV to set the first display
to DCV measurement.
3. To set a measurement mode for the second
display, press the 2ND key and then select thesecond measurement mode.
4. For example, press 2ND, SHIFT, ACV to select
ACI measurement for the second display.

29

Display

Indicators for 1st
measurement
DC

AUTO

2nd measurement
and unit

S
m
V

AC

A

AUTO

2ND

1st measurement
and unit

Editing the
Measurement
Parameters

Procedure

NoteTurn Off 2nd
Measurement

Indicators for 2nd
measurement

5. After the secondary measurement function has
been activated, the rate, range andmeasurement item can be edited for either the
primary or secondary display. Note however, it
is more practical to configure the first or second
measurement items before activating dual
measurement mode.
6. To edit measurement parameters in dual
measurement mode, you must first set whichdisplay is the active display. The 2ND icon
under the secondary display determines whichdisplay is the active display.
1. Toggle whether the primary or secondary
display is the active display by pressing the
2ND key:
2. Primary display is the active display: 2ND is not
visible on the display.
3. Secondary display is the active display: 2ND isvisible on the display.
Do not hold the 2ND key. This will turn the dual
measurement mode off.
4. Edit the range, rate or measurement item forthe active display in the same way as for single
measurement operation. See the Basic
Measurement chapter for details (page 12).
5. To turn Off the 2nd measurement, press andhold the 2nd key for more than 1 second.

30

Connection

6. The diagrams below describe how to connect
the DMM to measure a number of common dual
measurement items.
Note: DC Current measurements will be
displayed as a negative value as the polarity of
the current leads has been reversed.
Please take into account the resistance of thetest leads and internal resistance of the current
connection as it is in Series with the test circuit.
The above measuring configuration is used tomeasure the voltage present on the resistanceunder test and the current through theresistance under test when using the DCI/DCV
or ACI/ACV dual measurement function.
Voltage and Frequency/Period measurement

INPUT
V W
CAT

600V

MAX

MAX
0.5A

FUSE
T0.5A
250V

MAX
500Vpk

1000V
750V

COM

31

MAX
12A

Voltage/Frequency/Period and Current
Measurement

INPUT

Load

V W
CAT

600V

MAX

MAX
0.5A

FUSE
T0.5A
250V

MAX
500Vpk

1000V
750V

COM

MAX
12A

0~12A

0~0.5A

32

3. Advanced Measurement Overview
Advanced measurement mainly refers to the type of measurement
which uses the result obtained by one of the basic measurements:
ACV, DCV, ACI, DCI, Resistance, Diode/Continuity, Frequency/Period,
and Temperature*.

3-1. Supported Advanced Measurement Functions
The following table lists all the advanced measurement functions andwhich of the basic measurement functions that they support.
Basic Measurement
Advanced
Meas.
dB
dBm
Max/Min
Relative
Hold
Compare
Math

ACV/
DCV
●
●
●
●
●
●
●

ACI/
DCI
X
X
●
●
●
●
●

Ω
X
X
●
●
●
●
●

Hz/P
X
X
●
●
●
●
●

TEMP* DIODE
X
X
X
X
●
X
●
X
●
X
●
X
●
X

CAP
X
X
●
●
X
●
X

*Temperature measurement is not supported by the DL-2141.

3-2. dBm/dB/W Measurement
3-2-1. dBm/dB Calculation
Overview

Using the ACV or DCV measurement results,
the DMM calculates the dB or dBm value basedon a reference resistance value in the followingway:dBm= 10 x log10 (1000 x Vreading2 / Rref)
dB= dBm – dBmref
W= Vreading2/Ref
Where:
Vreading= Input Voltage, ACV or DCV;
Rref= Reference resistance simulating an
output load;
dBmref= Reference dBm value33

3-2-2. Measuring dBm/W
Procedure

Display

1. Select ACV or DCV measurement. See page 13.
2. To measure dBm, press SHIFT →.
3. The primary display will show the dBm
measurement while the secondary display
shows the reference resistance.
dBm
Referencemeasurement
resistance
DC

S

W

4.
5. To set the reference resistance, use the Up andDown arrow keys.
6. The selectable reference resistances are shown
below.
Selectable reference resistances
2
4
8
16
50
75
93
110
124 125 135 150 250 300
500 600 800 900 1000 1200 8000
7. When the reference resistance is less than 50Ω,
it is possible to calculate the power (in watts). If
the reference resistance is equal to or greaterthan 50Ω then this step can be ignored.
8. Press SHIFT →again to view the result inwatts.
Power measurement Reference
and unit
resistancedB m

Setting theReference
ResistanceView the resultin Watts

Display

DC

S
W

9.
10. Press SHIFT →again to exit the dBm
measurement, or simply activate anothermeasurement function.
dB mExit dBm
MeasurementW34

3-2-3. Measure dB
dB is defined as [dBm−dBmref]. When the dB measurement is
activated, the DMM calculates the dBm using the reading at the first
moment and stores it as dBmref.
Procedure
1. Select ACV or DCV measurement. See page13.
2. Press SHIFT → Ω/ key to activate the dB
measurement mode.
3. The 1st display shows the dB reading thesecond display shows the voltage reading.
DisplaydB
Voltagemeasurement
reading
DC

S
V

dB

View the dBm
4. To view the dBm reference value, press theReference Value
2ND key.
5. The Up and Down arrow keys can also be used
to change the voltage range or the reading.
Exit dB
6. Press the SHIFT → Ω/ key again to exit the
Measurement
dB measurement, or simply activate anothermeasurement function.

3-3. Max/Min Measurement
Maximum and Minimum measurement function stores the highest(maximum) or lowest (minimum) reading and shows it on the 1st
display when the 2nd key is pressed.
Applicable
The Max/Min function can be used with themeasurements
following basic measurement functions:
ACV, DCV, ACI, DCI, Ω, Hz/P, TEMP,
Procedure
For Max measurement, press the MX/MN key
once.
For Min measurement, press the MX/MN key
twice.
Basic meas.
Max/Min
Measurement
Displayfunction
indicator
range
AC

AUTO

S

MAX

V

35

View Max/Min
Value
Display

Press the 2ND key to view the Max or Min
value.
Max/Min
Max/Minreading
mode
AC

AUTO

MAX

S

V

Deactivate
Max/Min
Measurement

Hold the MX/MN key for two seconds todeactivate, or simply activate anothermeasurement function.

3-4. Relative Measurement
Relative measurement stores a value, typically the data at that instant,as the reference. The measurement following the reference isdisplayed as the delta between the reference. The reference value will
be cleared upon exit.
Applicable
The relative function can be used with themeasurements
following basic measurement functions:
ACV, DCV, ACI, DCI, Ω, Hz/P, TEMP,
Procedure
1. Press the REL key. The measurement readingat that instant becomes the reference value.
Display
Relative
Range
value
AC

S

REL

V

View Relative
2. Press the 2ND key to view the relative
Reference Valuereference value at full scale.
Display
Relativereference value

V

Manually Set the 1. To manually set the relative reference value,
Relativepress SHIFT → REL.
Reference ValueThe REL value is displayed on the screen at fullscale.

36

2. Use the Left and Right arrow keys to navigate
to the digit to be edited or to select the decimal
point.
Use the Up and Down arrow keys to edit the
selected digit or to place the position of thedecimal point.
V

Display

3. Press the Enter key to confirm, alternatively
press Exit to cancel setting the relativereference value.
Relative
REL setting
value settingmode

V

Deactivate
Relative
Measurement

4. Press the REL key again to deactivate theRelative measurement mode, or simply activate
another measurement function.

3-5. Hold Measurement
The Hold Measurement function retains the current measurement data
and updates it only when it exceeds the set threshold (as a percentageof the retained value).
Applicable
The hold function can be used with themeasurements
following basic measurement functions:
ACV, DCV, ACI, DCI, Ω, Hz/P, TEMP
Procedure
1. Press the HOLD key.
2. The measurement reading appears on the
primary display and the hold threshold on thesecondary display.
Display
Measurement
Holdreading
thresholdAC

S HOLDV

37

Set the HoldThreshold

3. Use the Up and Down arrow keys to select ahold threshold level, as a percentage.
Range
0.01%, 0.1%, 1%, 10%
Deactivate Hold 4. Press the HOLD key for 2 seconds to
Measurement
deactivate the hold measurement, or simply
activate another measurement function.

3-6. Compare Measurement
Compare measurement checks to see if the measurement data stays
between a specified upper (high) and lower (low) limit.
Applicable
The compare function can be used with themeasurements
following basic measurement functions:
ACV, DCV, ACI, DCI, Ω, Hz/P, TEMP,
Procedure
1. Press SHIFT → HOLD.
2. The high limit setting appears.
Use the Left and Right arrow keys to navigate
to the digit to be edited, or to select the decimal
point.
Use the Up and Down arrow keys to edit the
selected digit, or to place the position of thedecimal point.

V

3. Press the Enter key to save the high limit
setting and automatically go on to the low limit
setting.
4. Enter the low limit setting in the same fashion
as the high setting.
5. Press the Enter key to confirm the low limit
settings.
6. The compare measurement results will appear
immediately:
7. If the current measurement reading is between
the high and low limits, PASS will be displayedon the secondary display, If the reading is
below the low limit, LOW will be displayed. If
the reading is above the high limit, HIGH will be
displayed.

38Display

Measurement
reading
AC

CompareresultSV
COMP

Deactivate
CompareMeasurement

8. Press SHIFT → HOLD to deactivate compare
measurements, or simply activate anothermeasurement function.

3-7. Math Measurement
3-7-1. Math Measurement Overview
Math measurement runs three types of mathematical operations,
MX+B, 1/X and Percentage based on the other measurement results.
Applicable
The math function can be used with the
Measurements
following basic measurement functions:
ACV, DCV, ACI, DCI, Ω, Hz/P, TEMP
Overview of
MX+B
Multiplies the reading (X) by the
Math Functions
factor (M) and adds/subtracts
offset (B).
1/X
Inverse. Divides 1 by the reading(X).
Percentage Runs the following equation:(ReadingX - Reference)x 100%
Reference

3-7-2. Measure MX+B
Procedure

1. Press SHIFT → MX/MN to enter the MATH
menu.
2. The MX+B setting appears. The M factor will be
flashing, indicating that the M factor is to be set.
3. Use the Left and Right arrow keys to navigate
to the digit to be edited or to select the decimal
point.
4. Use the Up and Down arrow keys to edit the
selected digit or to place the position of thedecimal point.

5. Press Enter to confirm the M factor settings and39

Display

to automatically move onto the B offset setting.
6. Edit the B offset in the same fashion as the M
factor was edited.
7. Press Enter to confirm the B offset setting andto begin the MX+B measurement.
MX+B meausurement MX+B mathreading
indicator
DC

AUTO

S

m

V

MATH

Deactivate Math 8. Press SHIFT → MX/MN to deactivate theMeasurement
MATH function, or simply activate anothermeasurement function.

3-7-3. Measure 1/X
Procedure

Display

1. Press SHIFT → MX/MN to enter the MATH
menu.
2. The MX+B setting appears.
3. Press the Down key twice to skip past MX+B
settings and go to the 1/X settings.
4. 1/X will be flashing in the secondary display.

5. Press Enter to activate the 1/X math function.
The results begin immediately.
1/X
1/X mathmeasurement
indicator
AC

AUTO

S

V

MATH

Deactivate Math 6. Press the SHIFT → MX/MN to deactivate theMeasurement
MATH function, or simply activate anothermeasurement function.

3-7-4. Measure Percentage
Procedure

1. Press SHIFT → MX/MN to enter the MATH
menu.
2. The MX+B setting appears. Press the Up key toskip past MX+B settings and go to the REF%
settings.

40

3. REF% will be flashing in the secondary display.
4. Use the Left and Right arrow keys to navigate
to the digit to be edited or to select the decimal
point.
5. Use the Up and Down arrow keys to edit the
selected digit or to place the position of thedecimal point.

Display

6. Press Enter to confirm the REF% setting and to
begin the Percentage measurement.
Calculated percentage% function
meausurement
indicator
DC

AUTO

S

V

MATH

Deactivate Math 7. Press SHIFT → MX/MN to deactivate theMeasurement
MATH function, or simply activate anothermeasurement function.

41

4. SYSTEM/DISPLAY CONFIGURATION
4-1. View Serial Number
Procedure

1. Press the MENU key.
2. Go to SYSTEM on level 1.
3. Go to S/N on level 2.
4. The serial number will be displayed across boththe primary and secondary display.

DisplayExit

5. Press the EXIT key twice to go back to themeasurement screen.

4-2. View Version Number
Procedure

1. Press the MENU key.
2. Go to SYSTEM on level 1.
3. Go to VER on level 2.
4. The firmware version number will be displayedin the secondary display.
5. Press Exit to exit from the version menu.

Display

Note

Firmware updates can only be performed byour service technician. For details, pleasecontact the our Service Center or visit our
website at www.texio.co.jp

4-3. Brightness Settings
The display has 5 settable brightness levels.
Range
Brightness
1 (dim) ~ 5 (bright)
Procedure
1. Press the MENU key.
2. Go to SYSTEM on level 1.
3. Go to LIGHT on level 2.
4. Set the light setting between 1 (dim) and 5(bright).
5. Press the Enter key to confirm.
6. Press the EXIT key to exit from the brightness
settings.

42

Display

Brightness setting

4-4. Input Resistance Settings
The 500mV and 5V DC voltage ranges can be set to an input
resistance of 10MΩ or 10GΩ. This setting is only applicable for DC
voltage.
Range
Input resistance 10MΩ, 10GΩ
Default
10MΩ
Procedure
1. Press the MENU key.
2. Go to MEAS on level 1.
3. Go to INPUT R on level 2.
4. Set the input resistance to 10MΩ or 10GΩ
5. Press the Enter key to confirm.
6. Press the EXIT key to exit from the input
resistance menu.
Display
Input resistancesetting

4-5. Frequency/Period Input Jack Settings
The INJACK settings set which input port is used for frequency or
period measurements.
Range
Injack
VOLT, 500mA, 10A
Default
VOLT
Procedure
1. Press the MENU key.
2. Go to MEAS on level 1.
3. Go to INJACK on level 2.
4. Set the INJACK setting to either VOLT, 500mA
or 10A.
5. Press the Enter key to confirm.
6. Press the EXIT key to exit from the INJACK
menu.

43

Display

INJACK setting

4-6. Compatibility Settings
The DL-2140 Series can be set to a special compatibility mode thatwill allow the unit to emulate the SCPI command syntax of the GDM8246 when in remote control mode. For example, this feature canallow programs that were originally written for the GDM-8246 to run on
the DL-2140 Series with little modification.
Range
LANG
NORM, COMP
Procedure
1. Press the MENU key.
2. Go to SYSTEM on level 1.
3. Go to LANG on level 2.
4. Set the LANG setting to either NORM (normalmode) or COMP (compatibility mode).
5. Press the Enter key to confirm.
6. Press the EXIT key to exit from the LANG
menu.
Display
LANG setting

44

4-7. Restore Factory Default Settings
The factory default settings can be restored at any time from the
System menu. Please see the Appendix on page 84 for a list of thefactory default settings.
Range
Factory DEF
YES, NO
Procedure
1. Press the MENU key.
2. Go to SYSTEM on level 1.
3. Go to FACTORY on level 2.
4. Set the (FACTORY) DEF setting to YES or NO.
Choosing YES will restore the factory default
settings.
5. Press the Enter key to confirm and to restore
the factory default settings immediately.
Display
Factory default setting45

5. USB STOREThe DL-2142 is able to save/log measurement results to a USB stick.
Please note that this function is not available for the DL-2141.

5-1. USB Store Overview
The DL-2142 is able to store measurement results to a USB stick. The
USB storage function also has comprehensive save options that allow
you to create a save file name, allow you to save up to a specified
number of reading counts as well as the option to continue saving to apreviously stored file instead of saving to a new file.
Supported USB Sticks:
USB Disk Type: Flash Disk Only
FAT Format: FAT16 or FAT32 (Recommended)
Max memory size: 32GB
Max record count in a recording: 5,000,000 records.
Interval: The same as the refresh rate
Flash disks which need to use card adaptors areNote
not recommended to be used in this application.
The interval will increase at the long record
Notemode ,ACV + DCV mode , ACI + DCI mode anddual measurement mode and Auto-Range.

5-1-1. CSV Format
Overview

Parameters

The DL-2142 saves readings as a CSV file (comma
separated values) that can be easily read using
spreadsheet programs such as Microsoft Excel. Each
CSV file saves the following information.
Time (dd)The elapsed number of days since thestart of the readings.
Time
The elapsed time since the start of the(hh:mm:ss) readings, in hours:minutes:seconds
formatting.
1st Value
The reading on the primary display.
1st Unit
The units for the reading on the primary
display.
2nd Value
The reading on the secondary display.
2nd Unit
The units for the reading on thesecondary display.

46

Count

Note

Counts the number of readings eachtime the measurement is started. The
count is restarted each timemeasurement is restarted. When ameasurement is started/restarted, thefirst count is marked as #START#, thelast as #END#.
Records the accumulative number ofreadings that are recorded in that file,up
to the maximum of 50,000.

Example:Time(dd) Time
1st Value(hh:mm:ss)
0
0:00:05
0.00E+00
0
0:00:06
0.00E+00
0
0:00:06
0.00E+00

1st Unit 2nd 2nd
Value Unit
V DC--V DC--V DC
---

Count

Note

#START# 00001#
200002##END#
00003#

5-1-2. Filename/Folder Format
Overview

Note

When files are saved to USB they are saved as anumber starting from DM000\DM000-XX.CSV andare automatically incremented for each new CSV
file*. For example: the first file will be named,
DM\000\DM000-XX.CSV, the next DM000\DM001XX.CSV and so on.
Note that the suffix, XX, represents a number from00 to 99. Each time the system logs more than
50000 readings in total*, a new file is generated
and the suffix is incremented. For example, if
102000 counts are logged, 3 files will be created:
DM000-00.CSV (counts 1~50000), DM00001.CSV (counts 50001~100000), and DM00002.CSV (counts 100001 ~ 102000).
*Please note that automatic file name generation
only occurs if the FILE setting is set to NEW FILE.
See page 52 for details.
**Please note that the suffix will only be
incremented if the total number of readings
exceeds 50000. To be able to exceed 50000
readings, either the FILE setting should be set to
CONTINU (continuous) or the Count setting
should be set to CONTINU (continuous). See
page 52 for details.

47

5-1-3. Operator Mode
Overview

Simple Mode

Advance Mode

Procedure

DisplayIn the operator mode, you can choose to operatein Simple mode or in Advance mode, where
various parameters can be designated by theuser.
This mode is the easiest operation mode and isalmost setting free. It is the default operating
mode. After entering this mode, the system will
set the ‘Existing File’ setting to ‘New File,’ ‘Count’
to ‘Continu,’ and ‘Time Mode’ to ‘Restart’ by
default. The system will then start to seek for the
first available file name (e.g. The first file namewill usually start from DM000, if DM000 doesn’t
already exist). If DM000 and DM001 exist
already, then DM002 would be the next available
filename.
Users can make detailed settings by themselvesin this mode. Advance mode is more flexible, so
it is comparatively more complex and only
recommended for advanced users. The following
settings are available in this mode: “ExistingFile”, “File Name”, “Count”, “Time Mode”, “Time
Setup” and “Date Setup.”
Note that the settings that are available for the
Advance mode are automatically available when
you activate the USB Store function in the
Advance mode. See page 55.
1. Press the MENU key.
2. Go to USBSTO on level 1.
3. Go to MODE on level 2.
4. Set MODE to SIMPLE or ADVANCE.
5. Press the Enter key to confirm.
6. Press the EXIT key to exit from the MODE
menu.
Operator mode
Operator modesettingmenu indicator48

5-1-4. Long Record Mode
Overview

NormalLong

Procedure

Display

If users need long-term data records, the Long
Record Mode can be used to log test data for along period of time. In this mode, the Rate is set
by the system to the slow rate and the refresh rate
is set to 1 data refresh per second (excluding dual
measurement, ACI+DCI and ACV+DCV modes).
The Normal setting is the regular record mode.
The longest recordable time depends on therefresh rate that is chosen; the longest recordable
time (in seconds) equals 5,000,000/refresh rate.
In the long record mode, a fixed record speed of
one record per second will be logged into the log
file; the longest recordable time is 5,000,000
seconds.
1. Press the MENU key.
2. Go to USBSTO on level 1.
3. Go to RECORD on level 2.
4. Set RECORD to NORMAL or LONG.
5. Press the Enter key to confirm.
6. Press the EXIT key to exit from the MODE menu.
Operator mode
Operator modesettingmenu indicator

5-2. View the Store Function Status
Overview

USB Store
Status Items

The USB Status menu can be used to check thestatus of the USB Store function. This function willallow you to see if the save operation has
completed or check the elapsed time or thecurrent reading count.
ELTIME
Displays the elapsed time from when
the USB store function was started.
(Format: HHH:MM:SS)
COUNT
Displays the number of readings thathave been logged for the current
operation.
STATUS Displays the USB Store function status.

49

Procedure

Display

These statuses include:
1. START indicates that the function
has been started
2. STOP indicates that the function has
been stopped.
3. F-FULL indicates that the current log
file is full.
4. D-FULL indicates that the USB disk
currently being used is full.
5. ERROR indicates errors forunknown reasons.
S-FILE
Shows the filename of the first log fileof the present record.
E-FILE
Shows the filename of the last log fileof the present record.
1. Insert a USB stick and start the USB Storefunction as described on page 54 or 55.
2. To check the status of a save operation press
SHIFT → 2ND.
3. The USB Status menu will appear on the display.
The elapsed time will be displayed when you enter
this menu.
4. Press the Left or Right arrow keys to switch
between the ELTIME, COUNT, STATUS, S-FILE
and E_FILE displays.
5. Press SHIFT → 2ND again to exit from the USB
status menu.
Elapsed time, Countor USB store status
Status item
DC

F
USBSTO

2ND

5-3. Set the Starting File Name (Advance Mode only)
Overview

The DL-2142 will allow you to set the value of thestarting file name instead of the default DM000XX.CSV.
Note that the suffix, XX, cannot be edited.
This setting will appear automatically after the
USB Store function has been started in Advancemode, see page 55 for details.

50

RangeDisplay

DM000-XX.CSV to DM999XX.CSVFile nameName menu
number setting
indicator

5-4. Save Count (Advance Mode only)
Range
Overview

Note
DisplayCount
CONTINU, 00002~50000
Default
10
The COUNT function sets how many readings to
perform each time the USB STO function is used.
By default the COUNT setting is set to 10.
When this function is used, the DMM willautomatically return to the ready status when thespecified number of readings have been logged.
Note, however that the CONTINU (continuous)setting will continuously log data until the USB
store function is turned off.
This setting will appear automatically after the
USB Store function has been started in Advancemode, see page 55 for details.
When set to CONTINU, the actual number ofreading counts cannot exceed 5000000 (50000
readings X100).
Count menu
Count setting
indicator

51

5-5. Save to an Existing File (Advance Mode only)
Range
Overview

Display

FILE:
CONTINU, NEWFILE
Default
NEWFILE
By default a new file is created each time the USB
STO function is used. The FILE menu gives you
the option to continue saving to the previous filerather than creating a new file each time the USB
STO function is used.
This setting will appear automatically after the
USB Store function has been started in Advancemode, see page 55 for details.
File menu
File menu
setting
indicator

5-6. Time Mode (Advance Mode only)
Range
Overview

DisplayTIME
CURRENT, RESTART
Default
RESTART
The Time Mode setting designates how thereadings are time-stamped when saved to a CSV
file.
The CURRENT setting time stamps each readingfrom the time when the DMM was first turned on.
The RESTART setting restarts the time stamp timeto 0 each time the USB STO function is used.
This setting will appear automatically after the
USB Store function has been started in Advancemode, see page 55 for details.
Tmode menu
Tmode menu
setting
indicator52

5-7. Timer
Range

Accuracy
Overview

Note

Procedure

Display

TIMER

00:00:00 ~ 23:59:59(hours:minutes:seconds)
Default
Elapsed time from when the unit
was switched on.
40ppm plus an annual drift of 5ppm/per year.
The timer setting sets the “current” timer time thatis used to time stamp readings when saving toUSB. By default the timer time is the elapsed timefrom when the unit was turned on.
If the timer time ticks over 23:59:59, the timer willrevert back to 00:00:00 and the time stamp will
include a “day” count for each time this occurs.
Note, however, the “day” count cannot be set in
the timer settings.
The DL-214X uses volatile RAM and does nothave a CMOS backup battery to save the TIMER
settings when the power is turned off. When the
power is reset, the TIMER setting will be reset to
00:00:00.
1. Press the MENU key.
2. Go to USBSTO on level 1.
3. Go to TIMER on level 2.
4. Set TIMER time between 00:00:00 and 23:59:59.
5. Press the Enter key to confirm.
6. Press the EXIT key to exit from the TIMER menu.
Timer menu
Timer setting
indicator

5-8. Date
Range

Overview

Date13.03.01 ~ 99:12:31(Year:Month:Day)
Default
13.03.01
The date setting sets the date-stamp for any CSV
files that are saved.

53

Note

Procedure

Display

The DL-2142 has flash memory to store the datesettings. The date that is set by the user will be
restored each time the power is turned on. The
DL-2142 will not update the date setting
automatically, this must be done manually by theuser.
1. Press the MENU key.
2. Go to USBSTO on level 1.
3. Go to DATE on level 2.
4. Set the DATE. The format for the date is
Year:Month:Day.
5. Press the Enter key to confirm.
6. Press the EXIT key to exit from the DATE menu.
Date menu
Date setting
indicator

5-9. Save to USB
Overview

Note

The USB STO option allows the DL-2142 to store
each measurement reading to a USB stick. The
USB Store function varies according to whether
the operator mode is set to Simple or Advance.
When the DL-2142 starts to save records to USB,
all buttons except for the SHIFT, MENU, 2ND andleft and right arrow keys will be locked anddisabled. Remote control will also be disabled; theDL-2142 will stop receiving or transmitting any
commands after it starts to save records to USB.

5-9-1. Save to USB (Simple Mode)
Overview
Procedure

The procedure below describes the save
operation when the Mode is set to Simple.
1. Insert a USB stick into the USB Host port on thefront panel.
2. If the USB stick is recognized by the DMM, the
USB STO icon will be lit. This indicates that theDMM is ready to save files to the USB stick.
3. Press SHIFT → MENU.
The USB STO icon will flash slowly, indicating the54

DMM is saving to USB.
4. To stop saving to USB, press SHIFT → MENU
again.
When the save operation has stopped, the USB
STO icon will stop flashing and will remain lit.
5. The USB stick can now be removed or anothersave operation can be performed.
Do not remove the USB stick while the DMM is
WARNINGsaving to the USB drive.
The USB STO icon will flash at a faster rate (~5Notetimes/second) if there is no more space left on the
USB stick or if the automatically-incremented
filename suffix, XX, has reached its maximum
value, 99, and cannot be increased further.
Display
RecordedUSB STO
Measurement
icon
DC

S
USBSTO
V

5-9-2. Save to USB (Advance Mode)
Overview
Procedure

The procedure below describes the save
operation when the Mode is set to Advance.
1. Insert a USB stick into the USB Host port on thefront panel.
2. If the USB stick is recognized by the DMM, the
USB STO icon will be lit. This indicates that theDMM is ready to save files to the USB stick.
3. Press SHIFT → MENU.
4. Each Advance mode setting will now appear one
after the other. Set each option and press theEnter key to continue to the next option.
The following options will appear in order:
FILE (Existing File, see page 52)
NAME (File Name, see page 50)
COUNT (Count, see page 51)
TMODE (Time Mode, see page 52)
TIMER (Time Setup, see page 53)
DATE (Date Setup, see page 53)
5. After the DATE option is set, the DMM will begin
logging data.
The USB STO icon will flash slowly, indicating the55

DMM is saving to USB.
6. To stop saving to USB, press SHIFT → MENU
again.
When the save operation has stopped, the USB
STO icon will stop flashing and will remain lit.
7. The USB stick can now be removed or anothersave option can be performed.
Do not remove the USB stick while the DMM is
WARNINGsaving to the USB drive.
The USB STO icon will flash at a faster rate (~5Notetimes/second) if there is no more space left on the
USB stick or if the automatically-incremented
filename suffix, XX, has reached its maximum
value, 99, and cannot be increased further.
Display
RecordedUSB STO
Measurement
icon
DC

S
USBSTO
V

5-9-3. Deleting Files or Directories
Note

Overview

Suggestions
When Deleting
Directories or
Log Files

If you find the need to delete files or directories
that have already been saved to the USB stick,please adhere to the following suggestions toprevent unexpected results when logging data.
As the system will look for the last DMXXX
directory and last log file (DMXXX-XX.CSV) in that
directory when saving log files, it is imperative thatthe file directory structure and the files within the
directories remain continuous or files may be
stored to the wrong directory or data may be
added to the wrong log file.
1. Only delete the last directories, do not delete
directories before the last remaining directory.
For example the following directories are on the
USB stick: DM000, DM001, DM002, DM003,
DM004, DM005
Recommended: Delete the last directories:
DM000, DM001, DM002, DM003, DM004, DM005
Not recommended: Deleting any directories before
the last directory:
DM000, DM001, DM002, DM003, DM004, DM005

56

2. Only delete the last log files, do not delete any log
files before the last remaining log file.
For example the following log files are in a
directory: DM000-00.CSV, DM000-01.CSV,
DM000-02.CSV
Recommended: Deleting only the last files or all
the files from a directory:
DM000-00.CSV, DM000-01.CSV, DM000-02.CSV
OR
DM000-00.CSV, DM000-01.CSV, DM000-02.CSV
Not recommended: Deleting any file before thelast file.
DM000-00.CSV, DM000-01.CSV, DM000-02.CSV

57

6. REMOTE CONTROLThis chapter describes basic configuration of IEEE488.2 based remotecontrol. For a command list, refer to the Command Overview chapter
on page 61.

6-1. Configure Remote Control Interface
6-1-1. USB Interface
The USB device port on the rear panel is used for remote control. The
USB port on the DMM will appear as a virtual COM port to aconnected PC. Any terminal program that can communicate via a
serial port can be used for remote control. Before the DMM can beused for remote control the USB driver included on the User Manual
CD, must first be installed.
USB
PC side connector
Type A, hostconfiguration DMM side connector Rear panel Type B, slave
Revision
1.1/2.0
Class
Virtual COM Port
(CP210x:Silicon Laboratories)
baud rate
9600, 19200, 38400, 57600,
115200ParityNoneflow control
Off
Data Bits
8
Stop bit
1Steps
1. Connect the USB cable to the rear panel type B
USB port.
2. Press MENU.
3. Go to I/O on level 1.
4. Go to USB on level 2.
5. Set the baud rate to an applicable rate.
6. Press Enter to confirm the baud rate settings.
7. Press EXIT to exit from the USB menu.
8. Please install the VCP driver using Windows
Device manager and the setup file from the VCP
folder of the accessory CD.
Display
Baud rate
Baud menu
setting
indicator

58

6-1-2. GP-IB Interface
GP-IB port on the rear panel can be used for remote control. (DL2142G only)
GP-IB
GP-IB Address
0~30
configuration
Range
Steps
1. Connect the GP-IB cable to the rear panel GP-IB
port.
2. Press MENU.
3. Go to I/O on level 1.
4. Go to GPIB on level 2.
5. Turn GPIB ON and press Enter to Confirm.
6. The GP-IB address settings will automaticallyappear after turning GPIB on. Set the GP-IB
address.
7. Press Enter to confirm the GP-IB address
setting.
8. Press EXIT to exit from the System menu.
Display
GPIB address
GPIB menu
setting
indicator

Note

GP-IB Constraints • Maximum 15 devices together,at least 2/3 of all devices
turned on. Cable length
should be less than 20m witha maximum of 2m between
each device.
• Unique address assigned toeach device• No loop or parallel
connections59

6-2. Return to Local Control
Background

Procedure

Display

When the unit is in remote control mode, theRMT icon above the main display can be seen.
When this icon is not displayed, it indicates thatthe unit is in local control mode.
1. Press the LOCAL/2ND key when in remotemode.
2. The unit will go back into local mode and theRMT icon will turn off.
Remote control
indicator
RMT

AUTO
k

Hz

60

7. COMMAND OVERVIEWThe Command overview chapter lists all programming commands infunctional order as well as alphabetical order. The command syntax
section shows you the basic syntax rules you have to apply whenusing commands.

7-1. Command Syntax
Compatible
Standard
Command
Structure

IEEE488.2
Partial compatibility
SCPI, 1994
Partial compatibility
SCPI (Standard Commands for Programmable
Instruments) commands follow a tree-likestructure, organized into nodes. Each level ofthe command tree is a node. Each keyword in a
SCPI command represents each node in thecommand tree. Each keyword (node) of a SCPI
command is separated by a colon (:).
For example, the diagram below shows an
SCPI sub-structure and a command example.
CONFigure
CONFigure:VOLTage:DC:DC

Command types:VOLTage

:AC

:DCAC

There are a number of different instrumentcommands and queries. A command sends
instructions or data to the unit and a query
receives data or status information from theunit.
Command types
SimpleA single command
with/without a parameter
ExampleCONFigure:VOLTage:DCQuery
A query is a simple orcompound command followed
by a question mark (?). A
parameter (data) is returned.
ExampleCONFigure:RANGe?

61

Command
Forms

Commands and queries have two different
forms, long and short. The command syntax iswritten with the short form of the command incapitals and the remainder (long form) in lowercase.
The commands can be written either in capitals
or lower-case, just so long as the short or longforms are complete. An incomplete command
will not be recognized.
Below are examples of correctly writtencommands.
Long form CONFigure:DIODeCONFIGURE:DIODE
Configure:diode
Short form CONF:DIOD
conf:diod
Square Brackets
Commands that contain square brackets
indicate that the contents are optional. The
function of the command is the same with orwithout the square bracketed items, as shown
below. For example, for the query:

CommandFormat[SENSe:]UNIT?
Both [SENSe:]UNIT? and UNIT? are both valid
forms.
CONFigure:VOLTage:DC 500
1

CommonInput
Parameters

2 3

1. Command header
3. Parameter 1
2. Space
Type
Description
Example<Boolean> boolean logic
0, 1
<NR1>
integers
0, 1, 2, 3
<NR2>
decimal numbers
0.1, 3.14, 8.5<NR3>
floating point with
4.5e-1, 8.25e+1
exponent<NRf>
any of NR1, 2, 3
1, 1.5, 4.5e-162

[MIN]For commands, this will set the setting(Optional
to the lowest value. This parameterparameter) can be used in place of any numericalparameter where indicated.
For queries, it will return the lowest
possible value allowed for theparticular setting.
[MAX]
For commands, this will set the setting(Optional
to the highest value. This parameterparameter) can be used in place of any numericalparameter where indicated.
For queries, it will return the highest
possible value allowed for theparticular setting.
Automatic
The DL-2140 Series automatically sets theparameter range
command parameter to the next available value.
selection
When measurement range is omitted, the range
is set to auto range.
Exampleconf:volt:dc 1
This will set the measurement item to
DC Voltage and the range to 5V.
There is no 1V range so the DMM
selects the next available range, 5V.
Message
RemoteMarks the end of a command line. The
Terminator
Command following messages are in accordance(EOL)with IEEE488.2 standard.
LF, CR, CR+LF
The most
common EOL
character is
CR+LF
ReturnCR+ LF
Message
Message
EOL or ;Command Separator
Separator(semicolon)

637-2. CONFigure Commands
7-2-1. CONFigure:VOLTage:DC
Sets measurement to DC Voltage on the first display and specifies
the range.
Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)]
Example: CONF:VOLT:DC 5
Sets the voltage range to 5volt.

7-2-2. CONFigure:VOLTage:AC
Sets measurement to AC Voltage on the first display and specifies
the range.
Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)]
Example: CONF:VOLT:AC
Sets the AC range to auto range.

7-2-3. CONFigure:VOLTage:DCAC
Sets measurement to DC+AC Voltage on the first display andspecifies the range.
Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)]
Example: CONF:VOLT:DCAC
Sets the DC+AC voltage range to auto range.

7-2-4. CONFigure:CURRent:DC
Sets measurement to DC Current on the first display and specifies
the range.
Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)]
Example: CONF:CURR:DC 50e-3
Sets the DC current range to 50mA.

7-2-5. CONFigure:CURRent:AC
Sets measurement to AC Current on the first display and specifies
range.
Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)]
Example: CONF:CURR:AC 50e-2
Sets the measurement mode to ACI with a 500mA range.

7-2-6. CONFigure:CURRent:DCAC
Sets measurement to DC+AC Current on the first display andspecifies range.
Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)]
Example: CONF:CURR:DCAC 50e-2
Sets the measurement mode to DC+AC Current with a 500mA
range.

64

7-2-7. CONFigure:RESistance
Sets measurement to 2W Resistance on the first display andspecifies range.
Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)]
Example: CONF:RES 50e3
Sets the range to 50kΩ.

7-2-8. CONFigure:FREQuency
Sets measurement to Frequency on the first display and specifies
range.
Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)]
Example: CONF:FREQ MAX
Sets the frequency measurement range to max.

7-2-9. CONFigure:PERiod
Sets measurement to Period on the first display and specifies therange.
Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)]
Example: CONF:PER
Sets the DMM to period measurement using the previous range.

7-2-10. CONFigure:CONTinuity
Sets measurement to Continuity on the first display.
Parameter: None

7-2-11. CONFigure:DIODe
Sets measurement to Diode on the first display.
Parameter: None

7-2-12. CONFigure:TEMPerature:TCOuple
Sets measurement to Temperature thermocouple (T-CUP) on thefirst display.
Parameter: [None] | [Type(J | K | T)]
Example: CONF:TEMP:TCO J
Sets the measurement mode to TCO with a type J sensor.

7-2-13. CONFigure:CAPacitance
Sets measurement to Capacitance on the first display.
Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)]
Example: CONF:CAP 5E-5
Sets the measurement mode to Capacitance with a 50uF Range.

65

7-2-14. CONFigure:FUNCtion?
Returns the current function on the first display.
Return parameter: VOLT, VOLT:AC,VOLT:DCAC, CURR,
CURR:AC,CURR:DCAC, RES, FREQ, PER, TEMP, DIOD, CONT,
CAP

7-2-15. CONFigure:RANGe?
Returns the current range on the first display.
Return Parameter:
DCV: 0 .5(500mV), 5(5V), 50(50V), 500(500V), 1000(1000V)
ACV: 0.5(500mV), 5(5V), 50(50V), 500(500V), 750(750V)
ACI: 0.0005(500uA), 0.005 (5mA), 0.05(50mA), 0.5(500mA), 5(5A),
10(10A)
DCI: 0.0005(500μA), 0.005 (5mA), 0.05(50mA), 0.5(500mA), 5(5A),
10(10A)
RES: 50E+1(500Ω) 50E+2(5kΩ), 50E+3(50kΩ), 50E+4 (500kΩ),
50E+5(5MΩ), 50E+6(50MΩ)CAP: 5E-9(5nF), 5E-8(50nF), 5E-7(500nF), 5E-6(5uF), 5E-5(50uF)

7-2-16. CONFigure:AUTO
Sets Auto-Range on or off on the first display.
Parameter: ON | OFF
Example: CONF:AUTO ON

7-2-17. CONFigure:AUTO?
Returns the Auto-Range status of the function on the 1st display.
Return Parameter: 0|1, 1=Auto range, 0=Manual range

7-3. Secondary Display: CONFigure2 Commands
7-3-1. CONFigure2:VOLTage:DC
Sets measurement to DC Voltage on the second display andspecifies range.
Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)]
Example: CONF2:VOLT:DC 5
Sets the voltage range to 5volts.

7-3-2. CONFigure2:VOLTage:AC
Sets measurement to AC Voltage on the second display andspecifies range.
Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)]
Example: CONF2:VOLT:AC
Sets the measurement mode to AC voltage.

66

7-3-3. CONFigure2:CURRent:DC
Sets measurement to DC Current on the second display andspecifies range.
Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)]
Example: CONF2:CURR:DC 50e-3
Sets the DC current range to 50mA on the second display.

7-3-4. CONFigure2:CURRent:AC
Sets measurement to AC Current on the second display andspecifies range.
Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)]
Example: CONF2:CURR:AC 50e-2
Sets the measurement mode to ACI with a 500mA range on thesecond display.

7-3-5. CONFigure2:RESistance
Sets measurement to 2W Resistance on the second display andspecifies range.
Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)]
Example: CONF2:RES 50e3
Sets the range to 50kΩ on the second display.

7-3-6. CONFigure2:FREQuency
Sets measurement to Frequency on the second display andspecifies range.
Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)]
Example: CONF2:FREQ MAX
Sets the frequency measurement range to max on the second
display.

7-3-7. CONFigure2:PERiod
Sets measurement to Period on the second display and specifies
the range.
Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)]
Example: CONF2:PER
Sets the DMM to period measurement using the previous range.

7-3-8. CONFigure2:OFF
Turns the second display function off.
Parameter: None.

7-3-9. CONFigure2:FUNCtion?
Returns the current function on the second display.
Return parameter: VOLT, VOLT:AC, CURR, CURR:AC, RES,
FREQ, PER, NON

67

7-3-10. CONFigure2:RANGe?
Returns the range of the current function on the second display.
Return parameter:
DCV: 0 .5(500mV), 5(5V), 50(50V), 500(500V), 1000(1000V)
ACV: 0.5(500mV), 5(5V), 50(50V), 500(500V), 750(750V)
ACI: 0.0005(500uA), 0.005 (5mA), 0.05(50mA), 0.5(500mA), 5(5A),
10(10A)
DCI: 0.0005(500uA), 0.005 (5mA), 0.05(50mA), 0.5(500mA), 5(5A),
10(10A)
RES: 50E+1(500Ω) 50E+2(5kΩ), 50E+3(50kΩ), 50E+4 (500kΩ),
50E+5(5MΩ), 50E+6(50MΩ)

7-3-11. CONFigure2:AUTO
Sets Auto-Range on or off on the 2nd display.
Parameter: ON | OFF
Example: CONF2:AUTO ON

7-3-12. CONFigure2:AUTO?
Returns the Auto-Range status of the function on the 2nd display.
Return Parameter: 0|1, 1=Auto range, 0=Manual range

7-4. Measure Commands
7-4-1. MEASure:VOLTage:DC?
Returns the DC voltage measurement on the first display.
Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)]
Example: MEAS:VOLT:DC ?
>+0.488E-4
Returns the DC voltage measurement as 0.0488 mV.

7-4-2. MEASure:VOLTage:AC?
Returns the AC voltage measurement on the first display.
Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)]
Example: MEAS:VOLT:AC ?
>+0.511E-3
Returns the AC voltage measurement as 0.511 mV.

7-4-3. MEASure:VOLTage:DCAC?
Returns the DC+AC voltage measurement on the first display.
Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)]
Example: MEAS:VOLT:DCAC ?
>+0.326E-3
Returns the DC+AC voltage measurement as 0.326 mV.

68

7-4-4. MEASure:CURRent:DC?
Returns the DC current measurement on the first display.
Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)]
Example: MEAS:CURR:DC ?
>+0.234E-4
Returns the DC current measurement as 0.0234 mA.

7-4-5. MEASure:CURRent:AC?
Returns the AC current measurement on the first display.
Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)]
Example: MEAS:CURR:AC ?
> +0.387E-2
Returns the AC current measurement as 3.87mA.

7-4-6. MEASure:CURRent:DCAC?
Returns the DC+AC current measurement on the first display.
Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)]
Example: MEAS:CURR:DCAC ?
>+0.123E-4
Returns the DC+AC current measurement as 0.0123 mA.

7-4-7. MEASure:RESistance?
Returns the 2W resistance measurement on the first display.
Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)]
Example: MEAS:RES?
> +1.1937E+3
Returns the 2W measurement as 1.1937kΩ.

7-4-8. MEASure:FREQuency?
Returns the frequency measurement on the first display.
Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)]
Example: MEAS:FREQ?
> +2.3708E+2
Returns the frequency (237.08Hz).

7-4-9. MEASure:PERiod?
Returns the period measurement on the first display.
Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)]
Example: MEAS:PER? MAX
Returns the period at the maximum range.

7-4-10. MEASure:CONTinuity?
Returns the continuity measurement on the first display.
Example: MEAS:CONT?
Returns the continuity.

69

7-4-11. MEASure:DIODe?
Returns the diode measurement on the first display.
Example: MEAS:DIOD?
Returns the diode measurement.

7-4-12. MEASure:TEMPerature:TCOuple?
Returns the temperature for the selected thermocouple type on thefirst display.
Parameter:[NONE] | J | K | T
Example: MEAS:TEMP:TCO? J> +2.50E+1
Returns the temperature.

7-4-13. MEASure2:VOLTage:DC?
Returns the DC voltage measurement on the second display.
Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)]
Example: MEAS2:VOLT:DC ?
>+0.488E-4
Returns the DC voltage measurement as 0.0488 mV.

7-4-14. MEASure2:VOLTage:AC?
Returns the AC voltage measurement on the second display.
Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)]
Example: MEAS2:VOLT:AC ?
>+0.511E-3
Returns the AC voltage measurement as 0.511 mV.

7-4-15. MEASure2:CURRent:DC?
Returns the DC current measurement on the second display.
Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)]
Example: MEAS2:CURR:DC ?
>+0.234E-4
Returns the DC current measurement as 0.0234 mA.

7-4-16. MEASure2:CURRent:AC?
Returns the AC current measurement on the second display.
Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)]
Example: MEAS2:CURR:AC ?
> +0.387E-2
Returns the AC current measurement.

70

7-4-17. MEASure2:RESistance?
Returns the 2W resistance measurement on the second display.
Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)]
Example: MEAS2:RES?
> +1.1912E+3
Returns the 2W measurement.

7-4-18. MEASure2:FREQuency?
Returns the frequency measurement on the second display.
Parameter: [None] | [Range(<NRf> | MIN | MAX |DEF),Resolution(<NRf>| MIN | MAX | DEF)]
Example: MEAS2:FREQ?
> +2.3712E+2
Returns the frequency (237.12Hz).

7-4-19. MEASure2:PERiod?
Returns the period measurement on the second display.
Parameter: [None] | [Range(<NRf> | MIN | MAX | DEF)]
Example: MEAS2:PER? MAX
Returns the period at the maximum range.

7-5. SENSe Commands
7-5-1. [SENSe:]TEMPerature:TCOuple:TYPE
Sets thermocouple type.
Parameter: Type(J | K | T)
Example: SENS:TEMP:TCO:TYPE J
Sets the thermocouple to type J.

7-5-2. [SENSe:]TEMPerature:TCOuple:TYPE?
Returns the thermocouple type.
Return parameter: J, K, T

7-5-3. [SENSe:]TEMPerature:RJUNction:SIMulated
Set temperature simulation value.
Parameter: <NRf>(0.00 ~ 50.00)
Example: SENS:TEMP:RJUN:SIM 25.00
Sets the thermocouple junction temperature to 25˚C.

7-5-4. [SENSe:]TEMPerature:RJUNction:SIMulated?
Returns temperature simulation value.
Return parameter: <NR1> (+0000~+5000) ,where +0000=0.00˚C,+5000=50.00˚C71

7-5-5. [SENSe:]DETector:RATE
Sets the detection rate (sample rate)
Parameter: RATE(S | M | F)
Example: SENS:DET:RATE S
Sets the rate to slow (S).

7-5-6. [SENSe:]DETector:RATE?
Returns the sample rate.
Return parameter: SLOW, MID, FAST

7-5-7. [SENSe:]FREQuency:INPutjack
Assigns an input port for the frequency function.
Parameter: (0|1|2) 0=volt, 1=500mA, 2=10A
Example: SENS:FREQ:INP 0
Sets the input jack to the Volt input port.

7-5-8. [SENSe:]FREQuency:INPutjack?
Returns the assigned input port used for the frequency function.
Return Parameter: VOLT, 500mA, 10A

7-5-9. [SENSe:]PERiod:INPutjack
Assigns an input port for the period function.
Parameter: (0|1|2) 0=volt, 1=500mA, 2=10A
Example: SENS:PER:INP 0
Sets the input jack to the Volt input port.

7-5-10. [SENSe:]PERiod:INPutjack?
Returns the assigned input port used for the period function.
Return Parameter: VOLT, 500mA, 10A

7-5-11. [SENSe:]CONTinuity:THReshold
Sets the continuity threshold in ohms.
Parameter: <NRf> (0 ~ 1000)
Example: SENS:CONT:THR 500
Sets the continuity threshold to 500

7-5-12. [SENSe:]CONTinuity:THReshold?
Returns the continuity threshold.

7-5-13. [SENSe:]UNIT
Sets the temperature unit.
Parameter: C|F
Example: SENS:UNIT C
Sets the temperature unit to ˚C.

7-5-14. [SENSe:]UNIT?
Returns the temperature unit.

72

7-5-15. [SENSe:]FUNCtion[1/2]
Sets the function for the first or second display.
Parameter:(display1):"VOLT[:DC]", "VOLT:AC", “VOLT:DCAC”, "CURR[:DC]","CURR:AC", “CURR:DCAC”, "RES", "FREQ", "PER", "TEMP:TCO","DIOD", "CONT", “CAP”(display2): "VOLT[:DC]", "VOLT:AC", "CURR[:DC]", "CURR:AC","RES", "FREQ", "PER", "NON"
Example: SENS:FUNC1 "VOLT:DC"
Sets the 1st display to the DCV function.

7-5-16. [SENSe:]FUNCtion[1/2]?
Returns the function displayed on the first or second display.
Return parameter:(display 1): VOLT, VOLT:AC,VOLT:DCAC, CURR,
CURR:AC,CURR:DCAC, RES, FREQ, PER, TEMP:TCO, DIOD,
CONT, CAP
(display 2): VOLT, VOLT:AC, CURR, CURR:AC, RES, FREQ, PER,
NON

7-6. CALCulate Commands
7-6-1. CALCulate:FUNCtion
Sets the Advanced function.
Parameter: OFF | MIN | MAX | HOLD | REL | COMP | DB | DBM |MXB | INV | REF
Example: CALC:FUNC REL
Sets the Advanced function to REL (relative)

7-6-2. CALCulate:FUNCtion?
Returns the current Advanced function.

7-6-3. CALCulate:STATe
Turns the Advanced function on/off.
Parameter: ON|OFF
Example: CALC:STAT OFF
Turns the Advanced function off.

7-6-4. CALCulate:STATe?
Returns the status of the Advanced function.
Return Parameter: 0 | 1, 1=ON, 0=OFF

7-6-5. CALCulate:MINimum?
Returns the minimum value from the Max/Min measurement.

73

7-6-6. CALCulate:MAXimum?
Returns the maximum value from the Max/Min measurement.

7-6-7. CALCulate:HOLD:REFerence
Sets the percentage threshold for the Hold function.
Parameter: <NRf> (0.01, 0.1, 1, 10)
Example: CALC:HOLD:REF 10
Sets the hold percentage to 10%.

7-6-8. CALCulate:HOLD:REFerence?
Returns the percentage threshold from the Hold function.

7-6-9. CALCulate:REL:REFerence
Sets the reference value for the relative function.
Parameter: <NRf> | MIN | MAX
Example: CALC:REL:REF MAX
Sets the reference value to the maximum allowed.

7-6-10. CALCulate:REL:REFerence?
Returns the reference value from the relative function.

7-6-11. CALCulate:LIMit:LOWer
Sets the lower limit of the compare function.
Para meter: <NRf> | MIN | MAX
Example: CALC:LIM:LOW 1.0
Sets the lower limit to 1.0

7-6-12. CALCulate:LIMit:LOWer?
Returns the lower limit of the compare function.

7-6-13. CALCulate:LIMit:UPPer
Sets the upper limit of the compare function.
Para meter: <NRf> | MIN | MAX
Example: CALC:LIM:UPP 1.0
Sets the upper limit to 1.0

7-6-14. CALCulate:LIMit:UPPer?
Returns the upper limit of the compare function.

7-6-15. CALCulate:DB:REFerence
Sets the reference value for the dB function.
Parameter: <NRf> | MIN | MAX
Example: CALC:DB:REF MAX
Sets the reference voltage for dB measurements to the maximum
allowed.

74

7-6-16. CALCulate:DB:REFerence?
Returns the reference voltage from the dB function.

7-6-17. CALCulate:DBM:REFerence
Sets the resistance value for the dBm function.
Parameter: <NRf> | MIN | MAX
Example: CALC:DBM:REF MAX
Sets the resistance value for dBm measurements to the maximum
allowed.

7-6-18. CALCulate:DBM:REFerence?
Returns the resistance value from the dBm function.

7-6-19. CALCulate:MATH:MMFactor
Sets the scale factor M for math measurements.
Parameter: <NRf> | MIN | MAX
Example: CALC:MATH:MMF MIN
Sets the scale factor M to the minimum allowed value.

7-6-20. CALCulate:MATH:MMFactor?
Returns the scale factor M used in the math measurement.

7-6-21. CALCulate:MATH:MBFactor
Sets the offset factor B for math measurements.
Parameter: <NRf> | MIN | MAX
Example: CALC:MATH:MBF MIN
Sets the offset factor B to the minimum allowed value.

7-6-22. CALCulate:MATH:MBFactor?
Returns the offset factor B used in the math measurement.

7-6-23. CALCulate:MATH:PERCent
Sets the reference value for the Percent function.
Parameter: <NRf> | MIN | MAX
Example: CALC:MATH:PERC MAX
Sets the reference value for the Percent function to the maximum.

7-6-24. CALCulate:MATH:PERCent?
Returns the reference value setting for the Percent function.

7-6-25. CALCulate:NULL:OFFSet
Sets the reference value for the relative function. This command isanalogous to the CALCulate:REL:REFerence command.
Parameter: <NRf> | MIN | MAX
Example: CALC:NULL:OFFS MAX
Sets the reference value to the maximum allowed.

75

7-6-26. CALCulate:NULL:OFFSet?
Returns the reference value from the relative function. This query is
analogous to the CALCulate:REL:REFerence? query.

7-7. TRIGger Commands
7-7-1. READ?
Returns 1st and 2nd display value.

7-7-2. VAL1?
Returns the 1st display reading
Example: SAMP:COUN 100
VAL1?
>+0.333E-4,V DC>+0.389E-4,V DC> etc, for 100 counts.
Queries 100 counts of stored samples from the 1st display.

7-7-3. VAL2?
Returns the 2nd display reading.
Example: SAMP:COUN 100
VAL2?
>+0.345E-4,V DC>+0.391E-4,V DC> etc, for 100 counts.
Queries 100 counts of stored samples from the 2nd display.

7-7-4. TRIGger:SOURce
Selects the trigger source.
Parameter: INT | EXT
Example: TRIG:SOUR INT
Sets the trigger source as internal.

7-7-5. TRIGger:SOURce?
Returns current trigger source.

7-7-6. TRIGger:AUTO
Turns Trigger Auto mode on/off.
Parameters: ON | OFF
Example: TRIG:AUTO OFF
Turns the Trigger Auto mode off.

7-7-7. TRIGger:AUTO?
Returns the Trigger Auto mode.
Return parameter: 0|1, 0=OFF, 1=ON76

7-7-8. SAMPle:COUNt
Sets the number of samples.
Parameter: <NR1>(1 ~ 9999) | MIN | MAX
Example: SAMP:COUN 10
Sets the number of samples to 10.

7-7-9. SAMPle:COUNt?
Returns the number of samples.
Parameter: None | MIN | MAX

7-7-10. TRIGger:COUNt
Sets the number of trigger counts.
Parameter: <NR1>(1 ~ 9999) | MIN | MAX
Example: TRIG:COUN 10
Sets the number of trigger counts to 10.

7-7-11. TRIGger:COUNt?
Returns the number of trigger counts.
Parameter: None | MIN | MAX

7-8. SYSTem Related Commands
7-8-1. SYSTem:BEEPer:STATe
Selects the beeper mode; no beep, beep on fail and beep on pass.
Parameter: <NR1>(0 | 1 | 2) 0=no beep, 2=fail, 1=pass
Example: SYST:BEEP:STAT 0
Turns the beeper off.

7-8-2. SYSTem:BEEPer:STATe?
Returns the beeper mode.
Return parameter: Beep on Pass | Beep on Fail | No Beep

7-8-3. SYSTem:BEEPer:ERRor
Sets the beeper to sound on an SCPI error.
Parameter: ON | OFF
Example: SYST:BEEP:ERR ON
Allows the beeper to sound when an SCPI error occurs.

7-8-4. SYSTem:BEEPer:ERRor?
Returns the beeper error mode.
Return parameter: 0|1, 0=OFF, 1=ON

7-8-5. SYSTem:ERRor?
Returns the current system error, if any.

77

7-8-6. SYSTem:VERSion?
Returns system version.
Return Parameter: X.XX.

7-8-7. SYSTem:DISPlay
Turns the Display on/off.
Parameter: ON | OFF
Example: SYST:DISP ON
Turns the display on.

7-8-8. SYSTem:DISPlay?
Returns the status of the display
Return parameter: 0|1, 0=OFF, 1=ON

7-8-9. SYSTem:SERial?
Returns the serial number (eight characters/numbers)

7-8-10. SYSTem:SCPi:MODE
Sets the SCPI mode. Parameter: NOR | COMP (NOR=Normal,
COMP= Compatible to GDM-8246)
Example: SYST:SCP:MODE NOR
Sets the SCPI mode to normal.

7-8-11. SYSTem:SCPi:MODE?
Returns the SCPI mode.
Return parameter: NORMAL | COMPATIBLE

7-8-12. INPut:IMPedance:AUTO
Sets the input impedance for DCV mode.
Parameter: ON(10G)|OFF(10M)
Example: INP:IMP:AUTO ON
Turns the Automatic input impedance on.

7-8-13. INPut:IMPedance:AUTO?
Returns the input impedance mode.
Return parameter: <Boolean>(0|1) (0=OFF(10M), 1=ON(10G))

7-9. STATus Report Commands
7-9-1. STATus:QUEStionable:ENABle
Set bits in the Questionable Data Enable register.

7-9-2. STATus:QUEStionable:ENABle?
Returns the contents of the Questionable Data Enable register.

78

7-9-3. STATus:QUEStionable:EVENt?
Returns the contents of the Questionable Data Event register.

7-9-4. STATus:PRESet
Clears the Questionable Data Enable register.
Example: STAT:PRES

7-10. Interface Commands
7-10-1. SYSTem:LOCal
Enables local control (front panel control) and disables remotecontrol.

7-10-2. SYSTem:REMote
Enables remote control and disables local control (front panel
control)

7-10-3. SYSTem:RWLock
Enables remote control and disables local control (front panel
control). Once this command has been issued, pressing the 2ND or
local buttons will not return the user to local control. The only way toreturn local mode is to issue the SYSTem:LOCal command.

7-11. IEEE 488.2 Common Commands
7-11-1. *CLSClears the Event Status register (Output Queue, Operation Event
Status, Questionable Event Status, Standard Event Status)

7-11-2. *ESE?
Returns the ESER (Event Status Enable Register) contents.
Example: *ESE?
>130
Returns 130. ESER=10000010

7-11-3. *ESESets the ESER contents.
Parameter: <NR1> (0~255)
Example: *ESE 65
Sets the ESER to 01000001

797-11-4. *ESR?
Returns SESR (Standard Event Status Register) contents.
Example: *ESR?
>198
Returns 198. SESR=11000110

7-11-5. *IDN?
Returns the manufacturer, model No., serial number and systemversion number.
Example: *IDN?
>TEXIO,DL-2142,00000000,1.0

7-11-6. *OPC?
“1” is placed in the output queue when all the pending operations
are completed.

7-11-7. *OPC
Sets operation complete bit (bit0) in SERS (Standard Event Status
Register) when all pending operations are completed.

7-11-8. *PSC?
Returns power On clear status.
Return parameter: <Boolean>(0|1) 0= don’t clear, 1=clear

7-11-9. *PSC
Clears power On status.
Parameter: <Boolean>(0|1) 0=don’t clear, 1= clear

7-11-10. *RSTRecalls default panel setup.

7-11-11. *SRE?
Returns the SRER (Service Request Enable Register) contents.

7-11-12. *SRE
Sets SRER contents.
Parameter: <NR1>(0~255)
Example: *SRE 7
Sets the SRER to 00000111.

7-11-13. *STB?
Returns the SBR (Status Byte Register) contents.
Example:*STB?
>81
Returns the contents of the SBR as 01010001.

80

7-11-14. *TRG
Manually triggers the DMM.
For the following command sets, please refer to the status system
diagram on page 86.
STAT: QUES:EVEN?,STAT: QUES: ENAB,STAT: QUES: ENAB?
*ESR?,*ESE,*ESE?,*STB?,*SRE,*SRE?

81

8. FAQ･The DMM performance doesn’t match the specifications.
Make sure the device is powered On for at least 30 minutes, within
18~28˚C. This is necessary to stabilize the unit to match thespecifications.
･The measured voltage does not match the expected value.
There are a number of reasons why the measured value may not
match the expected values.
1. Ensure that all connections are connected securely and have agood contact at all times. Poor contacts could result in erroneous
measurements.
2. Ensure that the appropriate input resistance has been set in the
System menu. For 500mv and 5V ranges, the input resistancecan be set to either 10MΩ or 10GΩ.
3. When measuring AC voltage or current, the RMS of the voltage
peak is measured, not the voltage peak. See page 15 for details.
4. The measurement rate settings can have an effect on theaccuracy of the measurement. Slow measurements are moreaccurate, while the fast rate is not as accurate.
5. Ensure that an appropriate range setting is used. If a too-large
range is used, the resolution or the measurement may be affected.

82

9. APPENDIX
9-1. System Menu Tree
USBSTO

I/O

TEMP

MEAS

LEVEL 1 SYSTEM

DL-2142LEVEL 2LEVEL 2LEVEL 2

GPIB

115200
57600
38400
19200
9600

OFF
ON

LEVEL 2 SENSOR

SIM

UNIT

TYPE JTYPE K
TYPE T

23.00

C
F

INJACK INPUT R

0010

VOLT
500mA
10A

DL-2142G only

10M
10G

LANG

SN

BEEP

VER

LIGHT

PASS
FAIL
OFF

Vx.xx

LIGHT:1 12345678 NORM
COMP
LIGHT:2
LIGHT:3
LIGHT:4
LIGHT:5

MODE

1
:
30

DL-2142CONTLEVEL 2

USB

RECORD

FACTORY
NO
YES

TIMER

DATE

SIMPLE NORMAL 00:00:00 13.03.01
ADVANCE LONG

Pressing Shift + Menu
FILE

NAME

COUNT

TMODE

TIMER

DATE

DL-214283

9-2. Factory Default Settings
Measurement Item
Range
Rate
SYSTEM Menu
MEAS Menu(TEMP Menu)
I/O Menu(USBSTO Menu)

DCV
AUTO
s(slow)
BEEP: Pass, LIGHT: 3, LANG: NORM, FACTORY: NO
CONT: 0010Ω, INJACK: VOLT, INPUT R: 10M
SENSOR: TYPE J, SIM: 23.00, UNIT: C
USB: BAUD: 115200, (GP-IB: OFF)
MODE: SIMPLE, RECORD:NORMAL,TIMER: 00:00:00, DATE: 13.03.01

9-3. Replacing the AC Source Fuse
Fuse Ratings

Note
Steps

Type
Rating0.125AT
100VAC, 120VAC, 5mm x 20mm
0.063AT
220VAC, 240VAC, 5mm x 20mm
Only replace the fuse with a fuse of the correct
type and rating.
1. Turn the DMM off and take out the power cord.
2. Remove the fuse socket using a flatheadscrewdriver.

3. Remove the fuse in the holder and replace withthe correct type and rating.

4. Ensure the correct line voltage is lined up withthe arrow on the fuse holder. Insert the fusesocket.

84

9-4. Replacing the Input Fuse
Fuse Rating
Note
Steps

Type
Rating
0.5AT
0.5A 250V, 6.3mm x 32mm
Only replace the fuse with a fuse of the correct
type and rating.
1. Turn the DMM off.
2. Press the fuse holder with your finger and turn
anticlockwise. This will release the fuse holder
from the panel.

3. Replace the fuse at the end of the holder withthe correct type and rating.

4. Push the fuse holder back into the panel andturn clockwise when the fuse holder is level withthe front panel.

85

9-5. Status system
The diagram below is a description of the status system

For the following command sets, please refer to the diagram above.
STAT: QUES: EVEN?
STAT: QUES: ENAB
STAT: QUES: ENAB?
*ESR?
*ESE
*ESE?
*STB?
*SRE
*SRE?

86

9-6. Specifications
The specifications apply when the DMM is warmed up for at least 30
minutes and operates in slow rate. Below are the basic conditions
required to operate the DMM within specifications:• Calibration: Yearly• Operating Temperature Specification: 18˚C ~28˚C (64.4˚F ~82.4˚F)• Relative Humidity: 80% (Non condensing)• Accuracy: ± (% of Reading + Digits)• AC measurements are based on a 50% duty cycle.
• The power supply cable must be grounded to ensure accuracy.
• All specifications are applicable to the main (1st) display only.

9-6-1. General Specifications
Specification Conditions:Temperature: 23˚C±5˚C
Humidity: <80%RH, 75%RH for resistance measurement readings greaterthan 10MΩ.
Operating Environment: (0~50˚C)
Temperature Range: 0~35˚C, Relative Humidity: <80%RH;>35˚C, Relative Humidity: <70%RH
Indoor use only, Altitude: 2000 meters , Pollution degree 2
Storage Conditions (-10~70˚C)
Temperature Range: 0~35˚C, Relative Humidity: <90%RH;>35˚C, Relative Humidity: <80%RH
General:Power Consumption :Max 15VA AC100V – 240V ±10%,50/60Hz
Dimensions:265 mm (W) X 107 mm (H) X 302 mm (D)Weight:Approximately 2.9 kg

9-6-2. DC Voltage
Accuracy
Range Resolution Full Scale (1 year 23˚C ±5˚C) Input Resistance
500mV
10uV
510.00
10MΩ or >10GΩ
5V
100uV
5.1000
10MΩ or >10GΩ
50 V
1mV
51.0000.02%+4
11.1MΩ
500 V
10mV
510.0010.1MΩ
1000 V100mV1020.010MΩ* When the input value exceeds the full scale of the selected range, thedisplay will show -OL- (over load) on the display.
* The specifications are guaranteed to an input voltage of 1000V. A beeping
alarm will go off when the input voltage is higher than 1000V.
* 1000V protection of 1000V peak on all ranges.
** DC Common Mode Rejection Ratio>90 dB at dc, 50 or 60Hz ± 0.1% (1kΩ unbalanced, slow rates)

87

9-6-3. DC Current
Accuracy
Shunt
BurdenRange Resolution Full Scale (1 year 23˚C ±5˚C) Resistance Voltage
500uA
10nA
510.000.05%+5100Ω
0.06V max
5mA
100nA
5.10000.05%+4100Ω
0.6V max
50mA
1uA
51.0000.05%+41Ω
0.14V max
500mA
10uA
510.000.10%+41Ω
1.4V max
5A
100uA
5.10000.25%+510mΩ
0.5V max
10 A
1mA
12.0000.25%+510mΩ
0.8V max* 500uA~500mA range has a 3.6V voltage limit protection and 0.5A fuseprotection. And 10A range has a 12A fuse protection.
* When the input value exceeds the full scale of the selected range, thedisplay will show -OL- (over load) on the display.
* The specifications are guaranteed to an input of 10A. A beeping alarm will
go off when the input value is higher than 10A.

9-6-4. AC Voltage, ACV+DCV[3] (AC Coupled)
Accuracy (1 year 23˚C ±5˚C) [1]
Full
10kHz30kHzRange Resolution Scale 30Hz-50Hz 50Hz-10kHz
30kHz
100kHz500mV
10uV
510.00 1.00%+40 0.50%+40 2.00%+60 3.00%+120
5V100uV
5.1000 1.00%+20 0.35%+15 1.00%+20 3.00%+50
50V
1mV
51.000 1.00%+20 0.35%+15 1.00%+20 3.00%+50
x
0.5%+15 1.00%+20[2] 3.00%+50[2]
500V
10mV
510.00x
0.5%+15
x
x
750V
100mV
765.0
[1]Specifications are for sine wave inputs that are greater than 5% range.
[2]Input voltage <300Vrms.
[3]The accuracy of ACV+DCV is equal to ACV’s with 10 more digits added.
* The specifications are guaranteed to an input of 750V. A beeping alarm will
go off when the input value is higher than 750V.
* Input protection of 1000V peak on all ranges.
* AC-coupled true RMS – measures the AC component of the input with up to
400Vdc of bias on any range.
* AC Common Mode Rejection Ratio>60 dB , 50 or 60Hz ± 0.1% (1kΩ unbalanced, slow rates)*Input impedance 1MΩ±2% in parallel with 100pF

88

9-6-5. AC Current, ACI+DCI[3] (AC Coupled)
Accuracy (1 year 23˚C ±5˚C) [1]
Resolu- Full
Burden30Hz50Hz2kHz5kHz-20kHz
Range
tion
Scale
Voltage
50Hz
2kHz
5kHz
500uA 10nA 510.00 1.50%+50 0.50%+40 1.50%+50 3.00%+75 0.06V max
5mA 100nA 5.1000 1.50%+40 0.50%+20 1.50%+40 3.00%+60 0.6V max
50mA
1uA
51.000 1.50%+40 0.50%+20 1.50%+40 3.00%+60 0.14V max
500mA 10uA 510.00 1.50%+40 0.50%+20 1.50%+40 3.00%+60[2] 1.4V max
xx
0.5V max
5A
100uA 5.1000 2.0%+40 0.50%+30xx0.8V max
10A
1mA 12.000 2.0%+40 0.50%+30[1] The 500uA range requires an input of >35uA to meet specifications. The
5mA~10A ranges need more than 5% of full scale range to meet specifications.
[2] Input current (5kHz ~ 20kHz)<330mArms.
[3] The accuracy of ACI+DCI is equal to ACI’s with 10 more digits added.
* The specifications are guaranteed to 10A. A beeping alarm will go off when
the input current being measured is higher than 10A.

9-6-6. ResistanceAccuracy
Resistance Resolution Full Scale
Test Current(1 year 23˚C ±5˚C)[2]
500Ω
10mΩ
510.000.83mA
0.1%+5 [1]
5kΩ
100mΩ
5.10000.83mA
0.1%+3 [1]50kΩ
1Ω
51.00083uA
0.1%+3500kΩ
10Ω510.008.3uA
0.1%+35MΩ
100Ω
5.1000830nA0.1%+350MΩ
1KΩ
51.000560nA//10MΩ
0.3%+3[1] Using the REL function. If you don't use the REL function then increase theerror by 0.2Ω.
[2] When measuring resistances greater than 500kΩ, please use shielded test
leads to eliminate the noise interference that may be induced by standard test
leads.
* Open circuit voltage approximates 6V max on 500Ω~5MΩ range,
approximates 5.5V max on 50MΩ range.
* Input protection of 500Vpeak on all ranges.

9-6-7. Diode
Accuracy
Range Resolution Full Scale Test Current(1 year 23˚C ±5˚C)
5V100uV
5.10000.83mA
0.05%+5* Input protection of 500V peak. *Open circuit voltage approximates 6V.

9-6-8. Continuity
Accuracy
Range
Resolution Full Scale Test Current (1 year 23˚C ±5˚C)
5000.0Ω
100mΩ
5100.00.83mA
0.1%+5* Input protection of 500V peak. *Open circuit voltage approximates 6V.

89

9-6-9. Capacitance
Test
Accuracy [1]RangeResolution Full Scale Current (1 year 23˚C ±5˚C)
5nF: 0.5nF ~ 1nF[2]2.0%+200.001nF
5.100
8.3uA
5nF: 1nF ~ 5nF[2]2.0%+1050nF: 5nF ~10nF[2]2.0%+300.01nF
51.00
8.3uA
50nF: 10nF ~50nF[2]2.0%+10
500nF
0.1nF
510.0
83uA
5uF
1nF
5.100
0.56mA
2.0%+4
50uF
10nF
51.00
0.83mA[1] For the 5nF ~ 50uF range make sure that the input is greater than 10% of
the range.
[2] Need to use the REL function.
* Input protection of 500V peak on all ranges.

9-6-10. Frequency
Measurement Range
Accuracy (1 year 23˚C ±5˚C)
10Hz ~ 500Hz
0.01%+5500Hz ~ 500KHz
0.01%+3
500KHz ~ 1MHz
0.01%+5* AC + DC measurements do not allow frequency measurements.
* Input protection of 1000V peak on all ranges.
Voltage Measurement Sensitivity
Minimum Sensitivity (RMS sine wave)
10Hz~100kHz
100kHz~500kHz 500kHz ～ 1MHzRange
500 mV35 mV
200 mV
500mV
5V
0.25 V
0.5 V
1V
50 V
2.5 V
5V
5V
500 V
25 V
uncal
uncal
750 V
50 V
uncal
uncal
Current Measurement Sensitivity
Minimum Sensitivity(RMS sine wave)
Range
30Hz~20KHz
500uA
35uA
5mA
0.25mA
50mA
2.5mA
500mA
25mA
5A
0.25A(<2kHz)
10 A
2.5A(<2kHz)90

9-6-11. Temperature(DL-2142 only)
Measurement
Accuracy
SensorType
Range
Resolution(1 year 23˚C ±5˚C)
Thermocouple J,K,T -200 ~ +300°C
0.1°C
2 °C
* Note: The temperature specifications do not include sensor error.

Under conditions of constant room temperature, the junction
temperature reference setting error and the thermocouple error are
added.

9-6-12. Accessories
Description

NumberAccessories CD-ROM

1 pc

Test leads
1 pairGTL-207A
Power cord
1 pc
(region dependent)
For more information, contact your local dealer or TEXIO TECHNOLOGYat www.texio.co.jp / info@texio.co.jp.

9-7. Dimensions

50000 Counts Dual Measurement Multimeter

INPUT
V 
CAT II 600 V

MAX
500VpkRANGE

DC + AC

POWER

dBm

TEMP

LOCAL

/

Hz/P

2ND

COMP

INT/EXTUSB STO

HOLD

TRIG

MENU

DCI

ACI

dB

DCV

ACV

/

REL#

MATH

REL

MX/MN

FUSE
T0.5A
250V

1000V
750V

COM

MAX
12A

107

MAX
MAX
0.5A

Auto
Enter
SHIFT
EXIT

RANGE

231

302

265

91

7F Towa Fudosan Shin Yokohama Bldg., 2-18-13, Shin Yokohama, Kohoku-ku,
Yokohama, Kanagawa, 222-0033, Japan.
http://www.texio.co.jp/