INSTRUCTION MANUALDIGITAL MULTIMETER
DL-2052

B71-0422-01

■ About Brands and Trademarks“TEXIO” is the product brand name of our industrial electronic devices.
All company names and product names mentioned in this manual are the trademark or the registered trademark ofeach company or group in each country and region.

■ About the Instruction Manual
Permission from the copyright holder is needed to reprint the contents of this manual, in whole or in part. Be aware thatthe product specifications and the contents of this manual are subject to change for the purpose of improvement.

CONTENTS
USING THE PRODUCT SAFELY ....................................................................... Ⅰ-Ⅲ

1. GETTING STARTED .................................................................. 1
1-1. DL-2052 Characteristics ............................................................................ 1
1-2. Front Panel Overview ................................................................................ 2
1-3. Measurement keys (Upper row) ................................................................. 3
1-4. Measurement keys (Lower row) ................................................................. 4
1-5. Rear Panel Overview ................................................................................. 5
1-6. Set Up ........................................................................................................ 6
1-7. Power Up ................................................................................................... 7

2. BASIC MEASUREMENT ............................................................ 8
2-1. Basic Measurement Overview ................................................................... 8
2-2. Common attribute: refresh rate ................................................................. 8
2-3. Common attribute: reading indicator ........................................................ 8
2-4. Common attribute: manual/automatic triggering ....................................... 8
2-5. AC/DC/AC+DC Voltage Measurement ......................................................... 9
2-6. Select Voltage range ................................................................................ 10
2-7. Voltage conversion table ......................................................................... 10
2-8. Crest factor table ...................................................................................... 11
2-9. AC/DC/AC+DC Current Measurement ....................................................... 11
2-10. Select Current range ............................................................................. 12
2-11. 2W/4W Resistance Measurement ........................................................... 122-12. Select Resistance range ........................................................................ 13
2-13. Diode Test.............................................................................................. 13
2-14. Continuity Test ...................................................................................... 13
2-15. Set continuity threshold ........................................................................ 14
2-16. Select beeper setting ............................................................................. 15
2-17. Frequency/Period Measurement ............................................................ 15
2-18. Temperature Measurement .................................................................... 16
2-19. Select thermocouple type ...................................................................... 17
2-20. Set reference junction temperature ....................................................... 17

3. ADVANCED MEASUREMENT .................................................. 19
3-1. Advanced Measurement Overview ........................................................... 19
3-2. Common attribute: refresh rate ............................................................... 19
3-3. Common attribute: reading indicator ...................................................... 19
3-4. Common attribute: manual/automatic triggering ..................................... 20
3-5. dBm/dB Measurement ............................................................................. 20
3-6. Measure dBm ........................................................................................... 20
3-7. Measure dB ............................................................................................. 20
3-8. Max/Min Measurement ............................................................................. 21
3-9. Relative Value Measurement ................................................................... 21
3-10. Hold Measurement ................................................................................. 22
3-11. Compare Measurement .......................................................................... 22
3-12. Math Measurement ................................................................................ 24
3-13. Measure MX+B ....................................................................................... 24
3-14. Measure 1/X ........................................................................................... 25
3-15. Measure Percentage .............................................................................. 26
3-16. Dual Display Measurement .................................................................... 27

4. SYSTEM/DISPLAY CONFIGURATION ...................................... 28
4-1. Refresh Rate Setting ............................................................................... 28
4-2. Trigger Setting ........................................................................................ 28

4-2-1. Manual/Automatic triggering ....................................................................................... 28
4-2-2. Use external trigger ...................................................................................................... 28
4-2-3. Set trigger delay ............................................................................................................ 29
4-3. Digital Filter Setting ................................................................................ 30
4-3-1. Overview ........................................................................................................................ 30
4-3-2. Filter setting ................................................................................................................... 30
4-4. Display Setting ........................................................................................ 31
4-4-1. Display light setting ...................................................................................................... 31
4-4-2. Display on/off setting (+ key lock)............................................................................... 31

5. STORE/RECALL ...................................................................... 32
5-1. Store Measurement Record ..................................................................... 32
5-2. Recall Measurement Record .................................................................... 32
5-3. Store Settings .......................................................................................... 33
5-4. Recall Settings ........................................................................................ 33

6. DIGITAL I/O ............................................................................. 34
6-1. Digital I/O Terminal Configuration ........................................................... 34
6-2. Application: Compare measurement ....................................................... 35
6-3. Application: External trigger ................................................................... 36

7. REMOTE CONTROL ................................................................ 37
7-1. Configure Interface ................................................................................. 37
7-2. Configure USB interface .......................................................................... 37
7-3. Configure RS-232C interface ................................................................... 38
7-4. Command Syntax .................................................................................... 39
7-5. Command Set .......................................................................................... 40
7-5-1. CONFigure command ................................................................................................... 40
7-5-2. SENSe command .......................................................................................................... 41
7-5-3. UNIT command .............................................................................................................. 41
7-5-4. CALCulate command .................................................................................................... 41
7-5-5. TRIGger command ........................................................................................................ 42
7-5-6. SYStem related command ............................................................................................ 43
7-5-7. STAtus reporting command ......................................................................................... 43
7-5-8. RS-232C interface command ....................................................................................... 44
7-5-9. IEEE 488.2 common command .................................................................................... 44
7-5-10. Secondary display: CONFigure2 command............................................................. 45

8. APPENDIX .............................................................................. 46
8-1. Firmware Version .................................................................................... 46
8-2. Fuse Replacement ................................................................................... 46
8-2-1. Replace AC source fuse ............................................................................................... 46
8-2-2. Replace input current fuse........................................................................................... 47
8-3. Status system .......................................................................................... 48

9. Specifications ........................................................................ 49
9-1. General .................................................................................................... 49
9-2. Reading rates (readings/sec) .................................................................. 49
9-3. DC Voltage ............................................................................................... 49
9-4. AC Voltage ............................................................................................... 50
9-5. DC Current .............................................................................................. 50
9-6. AC Current ............................................................................................... 51
9-7. 2W Resistance ......................................................................................... 51
9-8. 4W Resistance ......................................................................................... 52
9-9. Diode/Continuity ..................................................................................... 52
9-10. Frequency .............................................................................................. 52
9-11. Temperature ........................................................................................... 52
9-12. Accessories ........................................................................................... 52
9-13. External Dimensions Figure .................................................................. 53

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

■ Pictorial indication
The manuals and product show the warning and caution items required to safely use the product.
The following pictorial indication is provided.

<Pictorial indication>
Some part of this product or the manuals 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 to refer to the manuals.

!

WARNING

If you use the product, ignoring this indication, you may get killed or seriously injured.
This indication shows that the warning item to avoid the danger is provided.

!

CAUTION

If you incorrectly use the product, ignoring this indication, you may get slightly injured or
the product may be damaged.
This indication shows that the caution item to avoid the danger is provided.

Please be informed that we are not responsible for any damages to the user or to 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.

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 and avoid 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 foreach product should be confirmed by reading the label attached on the back of the product or by the “rated” column
shown in the 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 the product 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 this device 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 the instruction manual.
If no fuse replacement procedures are indicated, the user is not permitted to replace it. In such case, keep thecase closed and consult us or your local dealer. If the fuse is incorrectly replaced, a fire may occur.

■ Warning item on Grounding
If the product has the GND terminal on the front or rear panel surface, be sure 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 product blocked 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 the product in such an environment.

● Installation place
Do not insert metal and inflammable materials into the product from its vent and spill water on it.
Otherwise, electric shock or fire may occur.

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

■ Warning item on abnormality while in use
If smoke or fire is generated from the product while in use, stop using the product, turn off the switch, and remove thepower cord plug from the outlet. After confirming that no other devices catch fire, ask us or your local dealer.

■ Input / Output terminals
Maximum input to terminal is specified to prevent the product from being damaged.
Do not supply input, exceeding the specifications that are indicated in the "Rating" column in the instruction manual of
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 shipmentfrom 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 used with 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 asoft cloth with neutral detergent in it.
During cleaning, be careful that water, detergents, or other foreign matters do not get into the product.
If a liquid or metal gets into the product, an electric shock and fire are caused.
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 manuals, ask us or E-Mail us.

1. GETTING STARTEDThis chapter describes the DL-2052 in a nutshell, including its main features, 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-2052.
Please note the information in this manual was correct at the time of printing. However as
TEXIO continues to improve its products, changes can occur at any time without notice.
Please see the TEXIO website for the latest information and content.

1-1. DL-2052 Characteristics
The DL-2052 is portable, dual-display digital multimeters suitable for wide range of applications, such as
production testing, research, and field verification.
Performance






Features 119999 meter count Multi functions: ACV, DCV, ACI, DCI, 2W/4W R, Hz, Continuity, Diode test,

High DCV accuracy: 0.012%
High current range: 10A
High Voltage range: 1000V
High ACV frequency response: 100kHz

MAX/MIN, REL, dBm, HOLD, AutoHold, Compare.
 Manual or Auto ranging
 AC true RMS or AC + DC true RMS

Interface







Voltage/Resistance/Diode/Temperature input
Current input
4W sense input
USB device/RS232 for remote control
9-pin digital I/O

1

1-2. Front Panel Overview
Main
Display

Fuse/
4W-R Lo

Measurement
Keys

4W-R HighMain
TerminalCOM
Terminal
DCI/ACI
TerminalDISPLAY

Power
SwitchPower Switch

Main Display

Display Key

Turns Onor Offsequence, see page7.

the main power. For power up

Shows measurement results and parameters.
For display configuration details, see page31 (light setting).

Input fuse / 4W Ω sense
LO terminal

As a fuse, protects the instrument from over-current.
Rating: T2A, 250V.
For fuse replacement procedure, see page47.
As a sense terminal, accepts 4W Ω measurement LO
connection. Also accepts current input less than 2A. For
details, see page12.

4W Ω Sense HI Terminal

Accepts HI sense line in 4W resistance measurement.
For details, see page12.

COM Terminal

Accepts ground (COM) line in all measurements except
the sense line in 4W Resistance (page12).

Voltage/ 2W Ω /(Diode) Terminal

Accepts input in all measurements except for DC/AC
Current and 4W Resistance sense line.

2Current Terminal

Accepts DC/AC Current input.
For DCI/ACI details, see page11.

Display key

Turns the display on or off. When the display is turnedoff, all panel keys except the Display key become
disabled. The Display key is On by default.

Display

1-3. Measurement keys (Upper row)
SHIFT/EXITAs the Shift key, selects the second functionality
assigned to each front panel key. When pressed,theindicator appears in the display.
As the Exit key, gets out of the parameter
configuration mode and goes back to themeasurement result display mode.

ACV

Measures AC Voltage (page9).

DCV

Measures DC Voltage (page9).

ACV + DCV

When the ACV key and the DCV key are pressed
together, they measure AC+DC Voltage (page9).

ACI

Measures AC Current (page11).

SHIFT → ACI (RECALL)

Recalls a normal measurement result (page32)

DCI

Measures DC Current (page11).

SHIFT → DCI (STORE)Stores a measurement result (page32).

ACI + DCI

When the ACI key and the DCI key are pressed
together, they measure AC+DC Current (page11).

2/4W (Resistance)

Measures 2-wire or 4-wire Resistance (page12).

SHIFT → 2/4W (MATH)

Enters the Math measurement mode (page24).

(Diode/Continuity)

Tests Diode (page13) or Continuity (page13).

SHIFT →

Measures dBm (page20).

(dBm)

3

Hz/P (Frequency/ Period)

Measures Frequency or Period (page15).

SHIFT + Hz/P (dB)

Measures dB (page20).

(Temperature)

SHIFT + TEMP(SENSOR)

Measures Temperature (page16).

TEMP

SENSOR

Selects the type of thermocouple used in theTemperature measurement (page17).

TEMP

1-4. Measurement keys (Lower row)
AUTO/ENTER

As the AUTO key, selects the measurement range
automatically.
As the ENTER key, confirms the entered value.

SHIFT → AUTO (RATE)

Selects the measurement update rate: Slow,
Medium, or Fast (page8).

Up/Down

Selects the parameter in various occasions: higher() or lower (
).

HOLD

Activates the Hold function (page22).

SHIFT → HOLD
(COMPare)Activates the Compare measurement (page22).

TRIG (Trigger)

Triggers sample acquisition manually (page28).

SHIFT → TRIG (Int/Ext
Trigger)

Selects the Internal or the External trigger source(page28).

Left/Right

Selects the parameter in various occasions: left ( )or right ( ).

REL

Measures the Relative value (page21).

SHIFT → REL (RELative
base)

Manually sets the reference value for the Relativevalue measurement (page21).

MX/MN(MAX/ MIN)

Measures the Maximum or the Minimum value(page21).

4

SHIFT → MX/MN(FILTER)

2

ND

Selects the digital filter type for the signal sampling(page30).

nd(Display) / LOCALSHIFT → 2

ND

As the 2 key, selects the measurement item onndthe 2 display (page27). Pressing and holding forndmore than 1 second turns off the 2 display.
As the Local key, releases the remote control andgoes back to the local panel operation(Menu)

Enters the configuration mode. Configures ordisplays the following items: Display (page28),
Beep (page15), Continuity threshold (page14),
Digital I/O (page33), and System information

1-5. Rear Panel Overview

Power Code
SocketDigital I/OPort

CAL KeyPort

USB DevicePort

RS- 232 C
Port

Fuse
T3. 15A/ 250V

Power Cord Socket

Accepts the power cord. AC 100–240V, 50–60Hz.
For power on sequence, see page7.

Fuse Socket

Holds the main fuse: T3.15A 250V, 20VA.
For fuse replacement details, see page46.

RS-232C port

Accepts an RS-232C cable for remote control; DB-9
male connector.
For remote control details, see page38.

USB device port

Accepts a USB device cable for remote control; TypeA, female connector.
For remote control details, see page37.

5

CAL key port

Digital I/O port

CAL KEY

Reserved for internal uses as in firmware update andcalibration.
Accepts a digital I/O cable for the Hi/Lo limit test;
DB-9 pin, female connector.
For digital I/O details, see page34.

1-6. Set Up
Tilt stand steps

Pull out the handle
sideways and rotate it.

Place the unithorizontally,

Or in the tilt standposition.

Place the handle
vertically for hand carry.

6

1-7. Power Up
Power up steps

1.

Connect the power cord to the
AC Voltage input.

Make sure the ground connector of the power cord is connected to asafety ground. This will affect the measurement accuracy.
Note
2.

Push to turn On the main
power switch on the front
panel.

3.

The display shows the model name and the version for a few seconds.
Example: DL-2052, V1.00

4.

Followed by the default measurement settings.

5.

And the interface I/O settings.

6.

Then the default setting appears.
Example: DCV, Auto, 1V range

7

2. BASIC MEASUREMENT
2-1. Basic Measurement Overview
Background

Basic measurement refers to the eight types of measurements assigned to theupper row keys on the front panel.
ACV

Measurement type

DCV

ACI

DCI

2/4W

ACV

AC Voltage

DCV

DC Voltage

ACV+DCV

AC+DC Voltage

ACI

AC Current

DCI

DC Current

ACI+DCI

AC+DC Current

2/4W

2-wire and 4-wire Resistance

Hz/P

/

TEMP

Diode/Continuity

Advancedmeasurement

Hz/P

Frequency/Period

TEMP

Celsius/Fahrenheit Temperature

Advanced measurement (page19) mainly refers to the operation using the result
obtained from one or more of the basic measurement.

2-2. Common attribute: refresh rate
Background

Refresh rate defines how frequently the DL-2052 captures and updates themeasurement data. Faster refresh rate yields lower accuracy and resolution.
Slower refresh rate yields higher accuracy and resolution. Consider these
trade-offs when selecting the refresh rate.

Range

S

5 1/2 digits(119999 count)M

4 1/2 digits

F

3 1/2 digits

Selection step

1.

Press the Shift key followed by the AUTO(RATE) key. The refresh rate switches to the
next.

2.

The refresh rate indicator shows the current
status.

→→→2-3. Common attribute: reading indicator
Background

The reading indicatorrefresh rate setting.

next to the 1st display flashes according to the

When no data is captured When there is no captured data, the reading indicator flashes once every two
seconds (slower than the normal refresh rate), indicating the DMM is in thewaiting mode.

2-4. Common attribute: manual/automatic triggering
Automatic triggering(default)

The DL-2052 triggers according to the refresh rate. See the previous page forrefresh rate setting details.

8Manual triggering

Press the TRIG key to trigger measurement
manually.

2-5. AC/DC/AC+DC Voltage Measurement
Voltage typeAC

0 ~ 750VDC

0 ~ 1000V

AC+DC

0 ~ 1000V*AC+DC=
1. Activate ACV/ DCV

AC2+DC2(AC = true RMS)

Press the ACV (AC Voltage) key or DCV (DC
Voltage) key.
or
For AC+DC Voltage, press the ACV key and the
DCV key together.

2. ACV/DCV mode
display appears

3. Connect the test leadand measure

AC(DC) + V

Indicates AC, DC, AC+DC Voltage

AUTO

Indicates Automatic range selection

100mV

2nd display shows the Voltage range

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

V

COM

Note

When measuring in1000V (maximum) range immediately followed by 100mV(minimum) range, an error might occur due to extreme range switching. In suchcase, take at least one minute in between as an interval.

92-6. Select Voltage range
Auto range

To turn the automatic range selection On/Off, press
the AUTO key.

Manual range

Press the Up or the Down key to select the range.
AUTO indicator turns Off automatically. If theappropriate range is unknown, select the highest
range.

Selection list

Range

Note

Resolution / Full scale @ slow rate
Resolution

Full scale

100mV

1µV

120.000mV

1V

10µV

1.20000V

10V

100µV

12.0000V

100V

1mV

120.000V

750V (AC)10mV

750.00V

1000V(DC, AC+DC)

10mV

1000.0V

For more detailed parameters, see the specifications at page49.

2-7. Voltage conversion table
This table shows the relationship between AC, DC, and AC+DC reading in various waveforms.
Waveform
Sine

Peak to Peak

AC
(True RMS)DC

AC + DC(True RMS)

2.828

1.000

0.000

1.000

1.414

0.435

0.900

1.000

2.000

0.771

0.636

1.000

2.000

1.000

0.000

1.000

1.414

0.707

0.707

1.000

2.000

2K

2D
D=X/Y

2 D
D=X/Y

0.000

1.000

PK-PK
Rectified Sine (full
wave)

PK-PK
Rectified Sine (half
wave)
PK-PK

SquarePK-PK
Rectified Square

PK-PK
Rectangular Pulse

X

PK-PK

K=

Y

(D  D2)

D=X/Y

Triangle Sawtooth

3.464

1.000

PK-PK

10

2-8. Crest factor table
Background

Crest factor is the ratio of the peak signal amplitude to the RMS value of thesignal. It determines the accuracy of AC measurement.
If the crest factor is less than 3.0, voltage measurement will not result in error due
to dynamic range limitations at full scale.
If the crest factor is more than 3.0, it usually indicates abnormal waveform as
seen from the below table.

Waveform

Shape

Crest factor

Square wave

1.0

Sine wave

1.414

Triangle sawtooth

1.732

Mixed frequencies

1.414 ~ 2.0

SCR output 100% ~10%

1.414 ~ 3.0

White noise

3.0 ~ 4.0

AC Coupled pulse
train

3.0

Spike

>9.0

2-9. AC/DC/AC+DC Current Measurement
Current typeAC

0 ~ 10ADC

0 ~ 10A

AC+DC

0 ~ 10A*AC+DC=
1. Activate ACI/ DCI

AC2+DC2(AC = true RMS)

Press the ACI (AC Current) key or the DCI (DCCurrent) key.
or
For AC+DC Current, press the ACI key and the
DCI key together.

2. ACI/DCI mode display
appears

AC(DC) + A

Indicates AC, DC, AC+DC Current(Note: AC = true RMS)

11

3. Connect the test leadand measure

AUTO

Indicates Automatic range selection

10A

2nd display shows the Current range

Connect the test lead between the A
and COM port or LO to COM port,
depending on the current. For current ≤2A use the LO port; For current up to
10A use the A port. The display
updates the reading.

MAX
2A
LO
COM

A

2-10. Select Current range
Auto range

To turn the automatic range selection On/Off, press
the AUTO key.

Manual range

Press the Up or the Down key to select the range.
AUTO indicator turns Off automatically. If theappropriate range is unknown, select the highest
range.

Selection list

Range

Note

Resolution / Full scale @ slow rate
Resolution

Full scale

10mA

0.1µA

12.0000mA

100mA

1µA

120.000mA

1A

100µA

1.2000A

10A

100µA

10.0000A*10A range is not available for AC+DC Current.
For more detailed range, see the specifications at page50.

2-11. 2W/4W Resistance Measurement
Measurement type

1. Activate resistancemeasurement

2-wireUses the standard V-COM ports.
Recommended for measuring resistances larger than 1kΩ.

4-wireCompensates the test lead effect using the 4W compensation
ports, in addition to the standard V-COM ports.
Recommended for measuring sensitive resistances smaller
than 1kΩ.

For 2-wire resistance measurement, press the
2W/4W key once.
For 4-wire resistance measurement, press the
2W/4W key twice.

2. 2W resistance mode
display appears

3. Connect the test leadand measure

2W(4W) + Ω

Indicates 2W(4W) Resistance mode

AUTO

Indicates Automatic range selection

10M

2nd display shows the Resistance range

Connect the test lead. For 2-wire resistance, use the Ω (V) and the COM port.
For 4-wire resistance, use the Ω (V) and the COM port, plus the 4W sense, andLO port for sensing. The display updates the reading.

122W connection

4W connection
4W
SENSE

LO

COM

COM

2-12. Select Resistance range
Auto range

To turn the automatic range selection On/Off, press
the AUTO key.

Manual range

Press the Up or the Down key to select the range.
AUTO indicator turns Off automatically. If the range is
unknown, select the highest range.

Selection list

Range

Full scale @ slow rate100Ω

120.000Ω

1kΩ

1.20000kΩ

10kΩ

12.0000kΩ

100kΩ

120.000kΩ

1MΩ

1.20000MΩ

10MΩ

12.0000MΩ

100MΩ

120.000MΩNote

For more detailed range, see the specifications at page51.

2-13. Diode Test
Background

Diode test checks the forward bias characteristics of a diode by running a
constant forward bias current, approx. 0.5mA, through the DUT.

1. Activate diode test

Press thekey once.

2. Diode mode display
appears+V
DIODE
3. Connect the test leadand measure

Indicates Diode test
2nd display shows the title

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

COM

2-14. Continuity Test
BackgroundContinuity test checks that the resistance in the DUT is low enough to beconsidered continuous (of conductive nature).

13

1. Activate continuity test Press the

key twice.

2. Continuity mode
display appears+Ω
CONT
3. Connect the test leadand measure

Indicates Continuity test
2nd display shows the title

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

COM

2-15. Set continuity threshold
BackgroundContinuity threshold defines the maximum resistance allowed in the DUT when
testing the continuity.

Threshold Range0Ω~ 1000Ω, 1Ω resolution, 10Ω default

1. Activate threshold 1.
setting

Press the Shift key, the 2ND
key, the Right key. The
measurement menu appears.

2.

Press the Down key, the Right
key, the Enter key. The continuity
threshold setting appears.

3.

Move the cursor (the flashing digit) using theLeft/Right key.

4.

Change the value using the Up/Down key.

2. Edit threshold

Range:
3. Go back to thedefault display

0Ω~ 1000Ω, 1Ω resolution, default 10Ω

Press the Enter key to confirm the edited
threshold. Press the Exit key to go back to
the default display.

14

2-16. Select beeper setting
Background

Beeper setting defines how the DL-2052 notifies the continuity test result to theuser.

Beeper parameter

Pass

Beeps when the test result is pass

Fail

Beeps when the test result is failOff

Beep function is turned Off

1. Activate beeper setting 1.
menu

Press the Shift key followed by the 2nd(Menu) key. The system menu appears.

2.

Press the Down key. The beep menu
appears.

3.

Press the Down key. The beep setting
appears.

2. Select the beep setting To change the setting, press the Up/Down key.

Beeper type:

Pass (beep when pass), Fail (beep when fail, default), Off(beep off)

3. Go back to the default Press the Enter key to confirm. Press the Exit key
display
to go back to the default display.

2-17. Frequency/Period Measurement
1. Activate
frequency/period
measurement

To measure Frequency, press the Hz/P key once.

To measure Period, press the Hz/P key twice.

2. Frequency (Period)
mode display appears

Hz (S)

Indicates Frequency (period) measurement

FREQ (PERIOD)

2nd display shows the title

15

3. Connect the test leadand measure

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

V

COM

Frequency range

10Hz ~ 800kHz
Sensitivity

Period Range

AC Current Sensitivity

10Hz ~ 100kHz: >0.1V
100kHz ~ 600kHz: >1.0V
600kHz ~ 800kHz: >2.5V

1.25µs ~ 0.1s
Sensitivity

1.25us ~ 1.666us: > 2.5V
1.666us ~ 10us: > 1.0V
10us ~ 0.1s: > 0.1V

Frequency

Input level

Sensitivity level

10Hz~10kHz

10mA/100mA> 7mA rms

45Hz~10kHz

1A/10A> 3mA rms

2-18. Temperature Measurement
Background

The DL-2052 accepts thermocouple input and calculates the temperature fromthe voltage fluctuation. Thermocouple type and reference junction temperature
are also being considered.

1. Activate temperature
measurement

For Celsius units (°C), press the TEMP key once.

For Fahrenheit (°F) unit, press the TEMP key twice.

TEMP
TEMP

2. Temperature mode
display appears

3. Connect the test leadand measure°C (°F)

Indicates Temperature measurement

TYPE J2nddisplay shows the thermocouple type

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

V

COM

Range

0 ~ +300°C

16

TEMP

2-19. Select thermocouple type
Background

The DL-2052 assumes that a certain type of thermocouple, which reads
voltage fluctuation induced by temperature changes, is used to measure thetemperature.

Parameter

Type

Range

Resolution

K

0 ~ +300°C

0.01°CT

0 ~ +300°C

0.01°CJ

0 ~ +300°C

0.01°CSENSOR

1. Open sensor selection Press the Shift key, then the TEMP (Sensor) key.
menu
The sensor selection menu appears on thedisplay.

2. Select sensor type

TEMP

Press the Right key to highlight the thermocouple
type. Press the Up/Down key. The thermocouple
type switches to the next one.



3. Confirm and go back to Confirm by pressing the Enter key, menu of Set
the default display
reference junction temperature is displayed.
Press the Exit key to go back to the default display.

2-20. Set reference junction temperature
Background

When a thermocouple is connected to the DL-2052, the temperature difference
between the thermocouple lead and the DL-2052 input terminal should betaken into account and be cancelled; otherwise an erroneous temperaturemight be added.
Type

Range

Resolution

SIM (simulated)

0 ~ +50°C

0.01°CThe terminal temperature is manually defined by the user.
Default value: 23.00
1. Open reference
junction menu

Press the Shift key, the TEMP (Sensor) key, thenthe Down key. The reference junction selection
menu appears on the display.

17

SENSOR
TEMP2. Edit reference
temperature

Use the Left/Right key to move the cursor, and use
the Up/Down key to change the value.
Default: 23.00

Press the Enter key to confirm the value, or the
Exit key to cancel. The display goes back to thedefault state.
(confirm)(cancel)18

3. ADVANCED MEASUREMENT
3-1. Advanced Measurement Overview
Background

Advanced measurement mainly refers to the type of measurement which uses
the result obtained by one of the basic measurements: ACV, DCV, ACI, DCI,
2/4W, Diode/Continuity, Frequency/Period, and Temperature.

Advanced Measurement

Basic Measurement
AC/DCV

AC/DCI

2/4W

Hz/P

TEMP

dB

●

—

—

—

—

—

dBm

●

—

—

—

—

—

Max/Min

●

●

●

●

●

—

Relative

●

●

●

●

●

—

Hold

●

●

●

●

●

—

Compare

●

●

●

●

●

—

Math

●

●

●

●

●

—

Dual Measurement

●

●

●

●

—

—

3-2. Common attribute: refresh rate
Background

Refresh rate defines how frequently the DL-2052 captures and updates themeasurement data. Faster refresh rate yields lower accuracy and resolution.
Slower refresh rate yields higher accuracy and resolution. Consider these
trade-offs when selecting the refresh rate.

Range

Selection stepS

5 1/2 digits (119999 count)M

4 1/2 digits

F

3 1/2 digits

1. Press the Shift key followed by the AUTO(RATE) key. The refresh rate switches tothe next.
2.

The refresh rate indicator shows the current
status.

→→→3-3. Common attribute: reading indicator
Background

The reading indicator
next to the 1st display flashes according to therefresh rate when the captured data is updated on the display.

When no data is captured When there is no captured data, the reading indicator flashes once every two
seconds (slower than the normal refresh rate), indicating the DMM is in thewaiting mode.

19

3-4. Common attribute: manual/automatic triggering
Automatic triggering(default)

The DL-2052 triggers according to the refresh rate. See the previous page forrefresh rate setting details.

Manual triggering

Press the TRIG key to trigger measurement
manually.

3-5. dBm/dB Measurement
Applicable to(NOT applicable to ACV+DCV)
Background

Using the ACV or DCV measurement result, the DL-2052 calculates the dB or
dBm value based on a reference resistance value in the following way.
2

dBm

10 x log10 (1000 x Vreading / Rref)dB

dBm – dBmref

Vreading

Input Voltage, ACV or DCV

Vref

Reference voltage obtained by Rref/1mW

Rref

Reference resistance simulating an output load

dBmref

Reference dBm value

Parameters

3-6. Measure dBm
Activate dBm

Press the Shift key followed by the
key. The
1st display shows dBm, and the 2nd display shows
the reference resistance.

dBm result appears

Select reference
resistance

Deactivate dBm
measurement

dBm

Indicates dBm measurement600Ω

2nd display indicates the reference resistance

To change the reference resistance, press the
Up/Down key. The new resistance appears in the 2nd
display. The following is the resistance list.
2

4

8

16

50

75

93

110

124

125

135

150

250

300

500

600

800

900

1000

1200

8000

To cancel the dBm measurement, press the Shift key
followed by thekey, or simply activate
another measurement.

3-7. Measure dB
BackgrounddB is defined as [dBm−dBmref]. When the dB measurement is activated, theDL-2052 calculates the dBm using the reading at the first moment and stores it
as dBmref.

Activate dB

Press the Shift key followed by the Hz/P key. The
1st display shows dB, and the 2nd display shows
the current Voltage reading.

20

dB result appearsdB

Indicates dB measurement

113.729mV

Indicates the present Voltage reading
ND

dBmrefPress the 2

key to see the dBmref value.

Deactivate dB
measurement

To cancel the dBm measurement, press the Shift
key followed by the Hz/P key, or simply activate
another measurement.

3-8. Max/Min Measurement
Applicable to
Background(+) DCV

ACV

(+)

ACI

DCI

2/4W

Hz/P

TEMP

Maximum and Minimum measurement stores the highest (maximum) or lowest(minimum) reading and shows it on the 2nd display.

1. Activate Max/Min For Max measurement, press the MX/MN key once.

For Min measurement, press the MX/MN key twice.

2. Max (Min) result
appears

Deactivate
Max/Minmeasurement

MIN (MAX)

Indicates Min (Max) measurement

0.11516

2nd display shows the Min (Max) measurement result

To cancel the Max/Min measurement, press the MX/MN
key for 2 seconds, or simply activate anothermeasurement.

3-9. Relative Value Measurement
Applicable to

ACV(+) DCV

ACI

(+)

DCI

2/4W

Hz/P

TEMP

Background

Relative measurement stores a value, typically the data at the moment, as thereference. The following measurement is shown as the delta between the reference.

1. Activate
Relativemeasurement

Press the REL key. The measurement reading at the
moment becomes the reference value.

2. Relative
measurement
display appears

Manually set thereference value

REL

Indicates Relative value measurement

2nd display

Shows the reference value

1st display

Shows the delta between the current measurement data and thereference value

1. To set the reference value manually, press the
Shift key followed by the REL key. The setting
appears.

21

REL

Indicates Relative measurement

1st display

Shows the reference value

2nd display

Indicates Relative value modification

2.

Use the Left/Right key to move the flashing point(cursor), and use the Up/Down key to change thevalue.

3.

Press the Enter key to confirm the value, or the Exit
key to cancel. The display switches tomeasurement.
(confirm)(cancel)Deactivate
Relativemeasurement

To cancel the Relative measurement, press the REL key
again, or simply activate another measurement.

3-10. Hold Measurement
Applicable to

ACV(+) DCV

ACI

(+)

DCI

2/4W

Hz/P

TEMP

Background

Hold measurement retains the current measurement data and updates it only when thereading fluctuates more than the threshold setting as the percentage of the retained
data.

1. Activate Hold
measurement

Press the HOLD key.

2. Hold
measurement
display appears

3. Select holdthreshold

HOLD

Indicates Hold measurement

2nd display

Shows the Hold threshold

1st display

The measurement data which is updated only when it fluctuates
more than the threshold compared to the retained value.

Select the hold threshold using thend
Up/Down key. The 2 display changes
accordingly.
Range

Deactivate Hold
measurement

0 ~ 99%, 1% resolution

To cancel the Hold measurement, press
the Hold key for 2 seconds, or simply
activate another measurement.

3-11. Compare Measurement
Applicable to
BackgroundACV(+) DCV

ACI

(+)

DCI

2/4W

Hz/P

TEMP

Compare measurement checks and updates if the measurement data stays between
the upper (high) and lower (low) limit specified.

22

1. Activate
Comparemeasurement

Press the Shift key, then the HOLD
(Comp) key.

2. High limit
setting

1st display

Shows the high limit value

2nd display

Indicates high limit setting

1. Use the Left/Right key to movethe cursor (flashing point)
between high/low setting, digits,
and decimal point.

2.

Change the parameter using the
Up/Down key.

3.

Press the ENTER key to confirm
editing and move to the low limit
setting.

3. Low limit
setting

1st display

Shows the low limit value

2nd display

Indicates low limit setting

4.

Use the Left/Right key to move the cursor (flashingpoint) between high/low setting, digits, and decimal
point.

5.

Change the parameter using the Up/Down key.

6.

Press the ENTER key to confirm editing. The
compare measurement starts right away.

4. Compare
measurement
appears

COMP
2

nd

display

Indicates Compare mode
Shows the compare measurement result: Pass, High, or
Low.

23

5. Result

nd

High

If the 2 display shows High, theresult is above the High limit.
Digital I/O: FAIL Out (Pin 6) and HIGH Limit FAIL Out (Pin7) are activated.
nd

Low

If the 2 display shows Low, theresult is below the Low limit.
Digital I/O: FAIL Out (Pin 6) and LOW Limit FAIL Out (Pin8) are activated.
nd

Pass

If the 2 display shows Pass, theresult is staying between the Highand the Low limit.
Digital I/O: PASS Out (Pin 5) is activated.

Digital I/O

The Compare measurement result comes out
from the rear panel Digital I/O terminal. For theterminal details, see page33.

Deactivate
Comparemeasurement

To cancel the Compare measurement, press the Shift key
followed by the HOLD (Comp) key, or simply activate
another measurement.

3-12. Math Measurement
Applicable to

ACV(+) DCV

ACI

(+)

DCI

2/4W

Hz/P

TEMP

Background

Math measurement runs three types of mathematical operation, MX+B, 1/X, andpercentage, based on the other measurement results.

Math type

MX+B

Multiplies the reading (X) by the factor (M) andadds/subtracts offset (B).

1/X

Divides the reading (X) by 1, which provides the inverse
number.

Percentage

Runs the following equation.
(ReadingX – Reference)
Reference

3-13. Measure MX+B
1. Activate MX+B

Press the Shift key followed by the 2/4W (Math)key. The MX+B setting appears.

2. Set the factor (M)

1st display

Shows the factor (M)

2nd display

Indicates MX+B (The letter M flashes)24

x 100%

1. Use the Left/Right key to move the cursor(flashing point) between the factor, digits,
and decimal point.

2.

Change the parameter using the Up/Down
key.

3.

Press the ENTER key to confirm editing andmove to offset setting.

3. Set the offset (B)

1st display

Shows the offset (B)

2nd display

Indicates MX+B (The letter B flashes)4.

Use the Left/Right key to move the cursor(flashing point) between the offset, digits,
and decimal point.

5.

Change the parameter using the Up/Down
key.

6.

Press the ENTER key to confirm the editing.
The MX+B measurement result appears.

4. View MX+B

1st display

Shows the calculated result

2nd display

Indicates MX+B

MATH

Indicates Math operation

3-14. Measure 1/X
1. Activate 1/X

Press the Shift key, the 2/4W (Math) key, theDown key twice. The 1/X setting appears.

252. View 1/X

Press the ENTER
measurement result.

key

to

view

the

1st display

Shows the 1/X value

2nd display

Indicates 1/X

MATH

Indicates Math operation

1/X

3-15. Measure Percentage
1. Activate Percentage

Press the Shift key, the 2/4W (Math) key, the Up
key. The Reference setting appears. The
Percentage is calculated as: [Reading−Reference]/Reference x 100%.

2. Set the reference
number

1st display

Shows the reference number

2nd display

Indicates Percentage setting

1. Use the Left/Right key to move the cursor(flashing point) between high/low setting,digits, and decimal point.

2.

Change the parameter using the Up/Down
key.

3.

Press the ENTER key to confirm editing.

3. View Percentage

1st display

Shows the calculated result

2nd display

Indicates the Percentage measurement

MATH

Indicates Math operation26

3-16. Dual Display Measurement
BackgroundYou can use the 2nd display to show another item, thus viewing two different
measurement results at once. The following table shows the available options.

st

1 Display2nd

Display

ACV

DCV

ACI

DCI

Hz/P

ACV

●

●

●

●

●

DCV

●

●

●

●

●

ACV+DCV

—

—

—

—

—

ACI

●

●

●

●

●

DCI

●

●

●

●

●

ACI+DCI

—

—

—

—

—

2W* (see Note)

●

●

●

●

●

Hz/P

●

●

●

●

●

TEMP

—

—

—

—

—

—

—

—

—

—

 In the dual display mode, the resistance needs to be larger than 1MΩ.
 Some combination of dual display mode is possible but may not be useful,Noteand their accuracies are not guaranteed.
nd

2 Measurement item
setting

Press the 2nd key, then the target item (example:
ACV). The display updates the measurement
result. (example: ACI + ACV)st

1 Display2ndShows the primary measurement result

DisplayShows the secondary measurement result

2ND
ndTurn Off 2
Measurement

Indicates that dual measurement is activend

To turn Off the 2 measurement, press and holdnd
the 2 key for more than 1 second.

27

4. SYSTEM/DISPLAY CONFIGURATION
4-1. Refresh Rate Setting
Background

Refresh rate defines how frequently the DL-2052 captures and updates themeasurement data. Faster refresh rate yields lower accuracy and resolution.
Slower refresh rate yields higher accuracy and resolution. Consider the
trade-off when selecting the refresh rate.

Display/Range

Refresh rate selection

S

5 1/2 digits

M

4 1/2 digits

F

3 1/2 digits

Press the Shift key followed by the AUTO key. The
refresh rate indicator switches to the next ratesetting.

→→→

4-2. Trigger Setting
4-2-1. Manual/Automatic triggering
Automatic triggering(default)

The DL-2052 triggers according to the refresh rate. See the previous page forrefresh rate setting details.

Manual triggering

Press the TRIG key to trigger measurement
manually.

4-2-2. Use external trigger
Background

The DL-2052 uses the internal trigger by default, for example to count thefrequency and the period. Using an external trigger allows customized
triggering condition.

Signal connection

Connect the external trigger signal to the Digital I/O port located on the rear
panel.
DB-9, female

Digital I/O pin assignment HIGH Limit FAIL Out

LOW Limit FAIL Out

FAIL Out6789

EOM Out

VCC Out

12345

PASS Out

External Trigger In
NC
Digital (Chassis) Ground28

1. Activate external
triggerPress the Shift key followed by the TRIG key. The
EXT indicator appears on the display.

2. Start trigger

Press the TRIG key to start triggering manually.
The
indicator turns On.

Reading indicator

The reading indicatordoes not flash before triggering (can be on or off).
After triggering, the indicator flashes according to the external signal trigger
timing.

Exit external trigger

Press the Shift key followed by the TRIG key. The
EXT indicator disappears and the trigger goesback to internal mode.

4-2-3. Set trigger delay
Background

Trigger delay defines the time rag between triggering and measurement start.
The default is set at 10ms.

Panel operation

1. Press the Shift key, the 2ND (Menu) key,
the Right key, the Down key. The delay
menu appears.

Range

2.

Press the Down key. The delay setting
appears.

3.

Move the flashing point (cursor) using theLeft/Right key. Change the value using the
Up/Down key.

4.

Press the ENTER key to confirm editing
and press the EXIT key. The display goesback to previous mode.

1 ~ 1000ms, 1ms resolution29

4-3. Digital Filter Setting
4-3-1. Overview
Filter basic

The DL-2052 internal digital filter converts the analog input signal into digital format
before passing it to internal circuits for processing. The filter affects the amount ofnoise included in the measurement result.

Filter typeThe digital filter averages a specific number of input signal samples to generate one
reading. The filter type defines the averaging method. The following diagrams show
the filter difference as an example of averaging 4 samples per reading.
Moving :MOV
(default)

Moving filter takes in one new sample and discards the oldest
sample per reading. This is the default behavior when thedigital filter is not specified, and is recommended for mostapplications.

3rd reading Sample 3 - 6
2nd reading Sample 2 - 5
1st reading Sample 1 - 4
Sample #12

Filter count

4

5

6

7

8

9 10 11 12

Repeating filter renews the whole samples per reading.

Repeating：REP

Sample #3

1st reading
Sample 1 - 4

2nd reading
3rd reading
Sample 5 - 8 Sample 9 - 12

1

5

2

3

4

6

7

8

9 10 11 12

Filter count defines the number of samples to be averaged per reading. More samples
offer low noise but long delay. Less samples offer high noise but short delay.
Range

2 ~ 100

4-3-2. Filter setting
Turn on Filter

1. Press the Shift key followed by the MX/MN(Filter) key.

1st display

Shows the filter count

2nd display

Shows the filter type (flashing)2.

Select the filter type using the Up/Down key.

3.

Move the cursor to filter count using the Left/Right
key. Change the value using the Up/Down key.

4.

Press the ENTER key to confirm editing. The Filter
indicator appears on the display.

30

FILT
Turn off Filter

5.

Indicates manual Filter setting

Press the Shift key followed by the MX/MN (Filter)
key. The Filter indicator will disappear from thedisplay.

4-4. Display Setting
4-4-1. Display light setting
Background

Display light setting adjusts the brightness of the display reading. Use level 3 or more(brighter) when working indoor; use level 2 or 1 (darker) when working outdoor under
the sun.
Level

Panel operation

5 (brightest) ~ 1 (darkest), default Level 3

1. Press the Shift key followed by the 2ND (Menu)
key. The system menu appears.

2.

Press the Down key, then the
Right key twice. The light menu
appears.

3.

Press the Down key. The light level setting
appears.

1st display

Shows the current display light level

4.

Select the level using the Up/Down key.

5.

Press the Enter key to confirm your selection.
Press the Exit key to go back to the default display.

4-4-2. Display on/off setting (+ key lock)BackgroundThe display can be turned off when not used for a long time. Note that when thisfunction is used, the panel keys are also locked except for the Output On/Off key. The
display is turned on by default.

Panel operation

1. Press the Display key once. The display will beturned off and the panel keys become locked.
Display2.

To enable the display and panel keys, press the
Display key again.

31

5. STORE/RECALL
The DL-2052 can store and recall measurement history (for up to 1000 counts) as well as the instrument
settings.

5-1. Store Measurement Record
Background

The DL-2052 can store the measurement history which can be recalled later for
observation and analysis as in Maximum, Minimum, and Average value.
Note: Previously recorded measurements will be erased every time the store function
is used or if power is reset.
Data count1 ~ 9999

Not applicable to

Store/recall measurement history is not applicable to Diode/Continuity test

Store step

1. Press the Shift key followed by the DCI (Store)
key. The store menu appears.

2.

Move the cursor using the Left/Right key. Change
the data count using the Up/Down key.

3.

Press the Enter key to confirm editing and to go
back to the previous display.

STO.

Indicates the measurement history is stored

5-2. Recall Measurement Record
Background

The DL-2052 can recall the stored measurement history for observation and analysis
as in Maximum, Minimum, and Average value.

Not applicable to

Store/recall measurement history is not applicable to Diode/Continuity test

Recall stored
recordPress the Shift key, then the ACI (Recall) key. The stored
measurement record appears.

1st display

Shows the stored measurement result

2nd display

Shows the reading count

RCL

Indicates the data has been recalled

View each reading Change the reading count using the Up/Down key.

View Max/Min/
Average

Switch to the Average/Maximum/ Minimum value of therecorded data using the Right key. Use the left key to go
back.

32

.

5-3. Store Settings
Background

The DL-2052 can store the 10 Panel settings.
Parameter

Store step

01 ~ 101.

Press the Shift key followed by the 2nd (MENU) key.
The SYSTEM menu appears.

2.

Move the cursor using the Left/Right key.
The SAVE menu appears.

3.

Change the number using the Up/Down key.

4.

Press the Enter key to confirm editing and to go
back to the previous display.

5-4. Recall Settings
Background

The DL-2052 can be called the initial configuration and 10 different panel settings.
Also, when a call set-up once, same set is called the next time the power is turned on.
It becomes the factory settings when you call the 00.
Parameter

Recall stored
Settings

00 ~ 101.

Press the Shift key followed by the 2nd (MENU) key.
The SYSTEM menu appears.

2.

Move the cursor using the Left/Right key.
The RECALL menu appears.

3.

Change the number using the Up/Down key.

4.

Press the Enter key to confirm editing and to go backto the previous display.

33

6. DIGITAL I/O
The rear panel Digital I/O terminal outputs the result of Compare measurement to external devices.

6-1. Digital I/O Terminal Configuration
Background The digital I/O terminal outputs the result of Compare measurement to control external devices. By
providing separate VCC for the terminal, the outputs can also be used as power source for TTL andCMOS logics.
Pin
Connector type: DB-9 female
assignment
HIGH Limit FAIL Out

LOW Limit FAIL Out

FAIL Out6789

EOM Out

VCC Out

12345

PASS Out

External Trigger In
NC
Digital (Chassis) GroundPin1 VCC output, 5V. Serves as the power source for the external device/logic.
Pin2 NC (No Connection).
Pin3 Digital (Chassis) Ground.
Pin4 External Trigger Input. Accepts external trigger signal. For using external signals.
Pin5 PASS signal Output. Activates when the compare result is PASS. Active low.
Pin6 FAIL signal Output. Activates when the compare result is FAIL. Active low.
Pin7 HIGH Limit FAIL signal Output. Activates when the compare result is FAIL due to violating the
HIGH Limit. Active low.
Pin8 LOW Limit FAIL signal Output. Activates when the compare result is FAIL due to violating the
LOW Limit. Active low.
Pin9 EOM (End Of Measurement) signal Output. Activates when compare measurement is over.
Active High.
Pulse width ≒ 10ms(Display ON) / 3ms(Display OFF)HIGH limit

Digital I/O Terminal wiring diagram
5V

R(min:500Ω)
Pin 1
Pin 5～9LO limit

Vo
P

GND

P

P

Pin 5 PASS output

Pin 3

F

F

H

Pin 7 HIGH limit output

L34

Pin 6 FAIL output

Pin 8 LO limit output

6-2. Application: Compare measurement
Applicable to

ACV(+) DCV

ACI

(+)

DCI

2/4W

Hz/P

TEMP

Background

Compare measurement checks and updates if the measurement data stays
between the upper (high) and lower (low) limit specified.

1. Activate Compare
measurement

Press the Shift key, then the HOLD (Comp) key.

2. High limit setting

1st display

Shows the high limit value

2nd display

Indicates high limit setting

1.

Use the Left/Right key to move the cursor(flashing point) between high/low setting, digits,
and decimal point.

2.

Change the parameter using the Up/Down key.

3.

Press the ENTER key to confirm editing andmove to the low limit setting.

3. Low limit setting

1st display

Shows the low limit value

2nd display

Indicates low limit setting

Set the low limit in the same way as in the high limit.
Press the ENTER key to confirm editing. The
compare measurement starts right away.
4. Compare
measurement appears

COMP
2
5. ResultnddisplayHigh

Indicates Compare mode
Shows the compare measurement result: Pass, High, or Low.
nd

If the 2 display shows High, theresult is above the High limit.
Digital I/O: FAIL Out (Pin 6) and HIGH Limit FAIL Out (Pin 7)
are activated.

Low

nd

If the 2 display shows Low, theresult is below the Low limit.

35

Digital I/O: FAIL Out (Pin 6) and LOW Limit FAIL Out (Pin 8) are
activated.
nd

Pass

If the 2 display shows Pass, theresult is staying between the Highand the Low limit.
Digital I/O: PASS Out (Pin 5) is activated.

Deactivate Compare
measurement

To cancel the Compare measurement, press the Shift
key followed by the HOLD (Comp) key, or simply
activate another measurement.

6-3. Application: External trigger
Background

The DL-2052 uses the internal trigger by default, for example to count thefrequency and the period. Using an external trigger allows customized triggering
condition.

Signal connection

Connect the external trigger signal to the Digital I/O port located on the rear panel.

HIGH Limit FAIL Out

LOW Limit FAIL Out

FAIL Out6789

EOM Out

VCC Out

12345

PASS Out

External Trigger In
NC
Digital (Chassis) Ground
Pin4

External Trigger Input pin.
TTL level, Active High, Pulse width > 25us

1. Activate external
triggerPress the Shift key followed by the TRIG key. The
EXT indicator appears on the display.

2. Start trigger

Press the TRIG key to start triggering manually. The
indicator turns On.

Reading indicator

The reading indicator
stays On before triggering. After triggering, the indicator
flashes according to the external signal trigger timing.

Exit external trigger

Press the Shift key followed by the TRIG key. The
EXT indicator disappears and the trigger goes back tointernal mode.

36

7. REMOTE CONTROL
7-1. Configure Interface
Interface type

Return to Local controlmode

USB Device

USB 1.1 or 2.0, TypeA, female connector.
Virtual COM Port(CP210x:Silicon Laboratories Inc)

RS-232C

D-sub 9 pin, male connector.

Settings

Baud rate: 115200/57600/38400/19200/ 9600.
8bit,Parity:None,Stop1bit,NoFlow Control.

In order to switch back to the Local control mode (front panel
operation), press the LOCAL key.

7-2. Configure USB interface
USB device port
configuration

1. Press the Shift key, the 2ND (Menu)
key, the Right key twice. The I/O
configuration menu appears.

2.

Press the Down key. The USB selection
display appears.

3.

Press the Down key. The USB ON/OFF
selection appears.

4.

Press the Up/Down key to select ON or
OFF.

5.

Press the ENTER key to confirm USB
selection.
NOTE:
If USB is ON, RS-232C is disable.

6.

Press the Exit key to go back to thedefault display.

NOTE:
Can’t communicate when menu isdisplayed.
7.

Connect the USB cable to the rear
panel terminal (upper port).

8.

Please install the VCP driver in the VCP
folder of the accessory CD (slabvcp.inf).

9.

If you want to change the settings forbaud rate, please be made in the settingsof the RS232C interface first.

37

KEY
CAL

7-3. Configure RS-232C interface
Configuration step

1. Press the Shift key, the 2ND (Menu)
key, the Right key twice. The I/O
configuration menu appears.

2.

Press the Down key, then the Right
key. The RS-232C selection display
appears.

3.

Press the Down key and down or up
keys repeatedly to select the baudrate.

1152005760038400192009600
4.

Press the ENTER key to confirm
RS-232C and baud rate selection.

5. Press the Exit key to go back to thedefault display.
Can’t communicate when menu isdisplayed.
6.

RS-232C pin assignment

Connect the RS-232C cable to the rear
panel terminal.

Pin 2: RxD
Pin 3: TxD
Pin 5: GND
Pin 1, 4, 6 ~ 9: No Connection

9876

54321
PC –

Connection

Null-modem connection, in which transmit (TxD) and receive (RxD) lines arecross-linked, is required.
DMM

PC

Pin2 RxD

RxD Pin2

Pin3 TxD

TxD Pin3

Pin5 GND

GND Pin538

7-4. Command Syntax
The commands are partially compatible with IEEE488.2 (1992) and SCPI (1994) standard. Commands
are NON-case sensitive.
Example command

conf:volt:dc _1

1: Command Header
2: Single space

1
Parameter example

23

3: Parameter

BooleanBoolean logic: 0 or 1. Used for On (1) or Off (0) command.

NR1

Integer: 0, 1, 2, 3.....

NR2

Decimal number: 0.0, 0.1, 0.2,....

NR3

Floating point number: 4.5e-1, 8.5e+1,...

min, max

The DL-2052 automatically translates to Minimum (min) or
Maximum (max) value available.

Automatic parameter range The DL-2052 automatically translates the command parameter into the closest
selection
available value.
Example 1

conf:volt:dc_1 (Sets the measurement item to DC Voltage
and the range to 1V).
the DL-2052 selects the 1V range.

Example 2

conf:volt:dc_2 (Sets the measurement item to DC Voltage
and the range to 2V).
There is no 2V range so the DL-2052 selects the closest
range, 10V.

Query example

READ?

Respond measurements value

Message Terminator

Marks the end of a command line. The following messages are in accordancewith IEEE488.2 standard.
Line feed code(0x0A) or Carriage Return(0x0D)

Message Separator; (semicolon)

Command separator.

Response Terminator

LF (0x0A), CR (0x0D) is added at the end of the response message.

39

7-5. Command Set
 Commands are non-case sensitive.
 Underline means a single space (dc_1→DC 1V).
 When the parameter does not match the real value, the closest possible option is automatically selected(dc_2 [DC 2V range]→DC 10V)

7-5-1. CONFigure command
conf:volt:dc

Sets measurement to DC Voltage and specifies range.
Parameter: NR2, min, max
Example: conf:volt:dc_1 (DCV, 1V range)
Example: conf:volt:dc_min (DCV, minimum range)

conf:volt:ac

Sets measurement to AC Voltage and specifies range.
Parameter: NR2, min, max
Example: conf:volt:ac_1 (ACV, 1V range)
Example: conf:volt:ac_min (ACV, minimum range)

conf:volt:dcac

Sets measurement to DC+AC Voltage and specifies range.
Parameter: NR2, min, max
Example: conf:volt:dcac_1 (DC+ACV, 1V range)
Example: conf:volt:dcac_min (DC+ACV, minimum range)

conf:curr:dc

Sets measurement to DC Current and specifies range.
Parameter: NR2, min, max
Example: conf:curr:dc_10e-3 (DCI, 10mA range)
Example: conf:curr:dc_min (DCI, minimum range)

conf:curr:ac

Sets measurement to AC Current and specifies range.
Parameter: NR2, min, max
Example: conf:curr:ac_10e-2 (ACI, 100mA range)
Example: conf:curr:ac_min (ACI, minimum range)

conf:curr:dcac

Sets measurement to DC+AC Current and specifies range.
Parameter: NR2, min, max
Example: conf:curr:dcac_10 (DC+ACI, 10A range)
Example: conf:curr:dcac_min (DC+ACI, minimum range)

conf:res

Sets measurement to 2W Resistance and specifies range.
Parameter: NR2, min, max
Example: conf:res_10e3 (2W R, 10K range)
Example: conf:res_min (2W R, minimum range)

conf:fresSets measurement to 4W Resistance and specifies range.
Parameter: NR2, min, max
Example: conf:fres_10e3 (4W R, 10K range)
Example: conf:fres_min (4W R, minimum range)

conf:freq

Sets measurement to Frequency and specifies range.

conf:perSets measurement to Period and specifies range.

conf:cont

Sets measurement to Continuity.

conf:diod

Sets measurement to Diode.

conf:temp

Sets measurement to Temperature.

conf:stat:func?

Returns function of 1 display.
Parameter: 1 (DCV), 2 (ACV), 3 (DCA-10A), 4 (ACA-10A), 5 (DCA-mA), 6(ACA-mA), 7 (2WR), 8 (Freq), 9 (TempC), 10 (AC+DCA-10A), 11 (AC+DCV), 12(AC+DCA-mA), 13 (Diode), 14 (Period), 15 (TempF), 16 (4WR), 17 (Cont.)

conf:stat:rang?

Returns range of 1 display. Parameter:
DCV: 1 (100mV), 2 (1V), 3(10V), 4 (100V), 5 (1000V)
ACV: 1 (100mV), 2 (1V), 3(10V), 4(100V), 5(750V)
AC+DCV: 1 (100mV), 2 (1V), 3(10V), 4 (100V), 5 (1000V)
DCmA, ACmA, ACmA+DCmA: 1(10mA), 2(100mA), 3(1A)
2WR, 4WR: 1(100Ω), 2(1kΩ), 3(10kΩ), 4(100kΩ), 5(1MΩ), 6(10MΩ), 7(100MΩ)
DCA, ACA, AC+DCA (10A range): 1 (one range)
Freq, TempC, TempF, Diode, Period, Cont.: 1 (one range)

conf:auto

Set 1 display to Auto range.
Parameter: 0 (disable auto range), 1 (enable auto range)

st

st

st

40

conf:auto?

st

Return 1 display Auto range status.
Parameter: 0 (disable auto range), 1 (enable auto range)

7-5-2. SENSe commandsens:det:rate

Sets detection rate.
Parameter: s (slow), m (medium), f (fast)
Example: sens:det:rate_s (set detection rate to Slow)

sens:det:rate?

Returns detection rate.
Parameter: Slow, Mid, Fast

sens:temp:tco:type

Sets thermocouple type.
Parameter: j (type J), k (type K), t (type T)
Example: sens:temp:tco:type_j (set thermocouple type to J)

sens:temp:tco:type?

Returns thermocouple type.
Parameter: J (type J), K (type K), T (type T)

sens:temp:rjun:sim

Set temperature simulation value.
Parameter: NR2
Example: sens:temp:rjun:sim_23

sens:temp:rjun:sim?

Returns temperature simulation value.

sens:aver:tcon

Selects digital filter type.
Parameter: mov (moving), rep (repeating)
Example: sens:aver:tcon_mov (moving digital filter)

sens:aver:tcon?

Returns digital filter type.
Parameter: MOV (moving), REP (repeating)sens:aver:coun

Sets digital filter count.
Parameter: 2 ~ 100
Example: sens:aver:coun_100 (filter count 100)

sens:aver:coun?

Returns current digital filter count.
Parameter: 2 ~ 100

sens:aver:stat

Turns digital filter On/Off.
Parameter: Boolean
Example: sens:aver:stat_1 (digital filter On)

sens:aver:stat?

Returns digital filter status, On or Off.
Parameter: Boolean

7-5-3. UNIT command
unit:temp

Selects temperature unit, celsius or fahrenheit.
Parameter: c (celsius), f (fahrenheit)
Example: unit:temp_c (temperature unit celsius)

unit:temp?

Returns temperature unit, celsius or fahrenheit.
Parameter: C (celsius), F (fahrenheit)

7-5-4. CALCulate command
calc:func

Activates advanced measurement functions.
Parameter: rel (relative), max (Max), hold (Hold), dbm (dBm), db(switches
between dB, dB+dBV, and dB+dBm), math (Math), comp (Compare)
Example: calc:func_math (activate math function)
Example: calc:func_db (activate dB)
calc:func_db (second issue activate dB+dBV(dBm))
calc:func_db (third issue activate dB+dBm(dBV))

calc:func?

Returns current advanced measurement functions.
Parameter: rel (relative), max (Max), hold (Hold), dbm (dBm), DB-V (dB-dBV),
DB-M (dB-dBm), math (Math), comp (Compare)calc:stat

Turns math function On/Off.
Parameter: Boolean
Example: calc:stat_1 (math function On)

calc:stat?

Returns math function status, On or Off.
Parameter: Boolean

41

calc:aver:min?

Returns minimum value stored.

calc:aver:max?

Returns maximum value stored.

calc:aver:aver?

Returns average value stored.

calc:aver:coun?

Returns number of data count.

calc:rel:ref

Sets reference value in Relative value measurement.
Parameter: NR2, min, max
Example: calc:rel:ref_1.0 (reference value set to 1.0)

calc:rel:ref?

Returns reference value in Relative value measurement.
Parameter: NR2, min, max

calc:db:ref

Sets reference value in dB measurement.
Parameter: NR2, min, max
Example: calc:db:ref_1.0 (reference value set to 1.0)

calc:db:ref?

Returns reference value in dB measurement.
Parameter: NR2, min, max

calc:dbm:ref

Sets reference value in dBm measurement.
Parameter: NR2, min, max
Example: calc:db:ref_1.0 (reference value set to 1.0)

calc:dbm:ref?

Returns reference value in dBm measurement.
Parameter: NR2, min, max

calc:lim:low

Sets lower limit value in Compare measurement.
Parameter: NR2, min, max
Example: calc:lim:low_1.0 (lower limit set to 1.0)

calc:lim:low?

Returns lower limit value in Compare measurement.
Parameter: NR2, min, max

calc:lim:upp

Sets upper limit value in Compare measurement.
Parameter: NR2, min, max
Example: calc:lim:low_1.0 (upper limit set to 1.0)

calc:lim:upp?

Returns upper limit value in Compare measurement.
Parameter: NR2, min, max

calc:math:mmf

Sets factor(M) in Math measurement.
Parameter: NR2
Example: calc:math:mmf_1.03 (Math factor set to 1.03)

calc:math:mmf?

Returns factor(M) in Math measurement.
Parameter: NR2

calc:math:mbf

Sets offset(B) in Math measurement.
Parameter: NR2
Example: calc:math:mbf_10 (Math offset set to 10)

calc:math:mbf?

Returns offset(B) in Math measurement.
Parameter: NR2

calc:math:perc

Sets target value in Math measurement.
Parameter: NR2
Example: calc:math:perc_50 (target set to 50)

calc:hold:refSet percentage of Hold function.
Parameter: 0 to 99, min, max

calc:hold:ref?

Return percentage of Hold function.
Parameter: 0 to 99

7-5-5. TRIGger command
read?

st

nd

Returns 1 and 2

display value.

st

val1?

Returns 1 display value.

val2?

Returns 2nddisplay value.

42trig:sour

Selects trigger source.
Parameter: int (internal), ext (external)
Example: trig:sour_ext (External trigger selected)

trig:sour?

Returns current trigger source.
Parameter: INT (internal), EXT (external)

trig:delSets trigger delay in milli-seconds.
Parameter: 0 ~ 9999, min, max
Example: trig:del_50 (trigger delay set at 50ms)
Example: trig:del_min (trigger delay set at minimum 1ms)

trig:del?

Returns trigger delay in milli-seconds.
Parameter: 0 ~ 9999, min, max

trig:auto

Turns trigger auto mode On or Off.
Parameter: 1 (on), 0 (off)Example: trig:auto_1 (trigger auto mode On)

trig:auto?

Returns current trigger auto mode.
Parameter: 1 (on), 0 (off)samp:coun

Sets number of sampling.
Parameter: NR1 (1 to 127)
Example: samp:coun_10 (sampling set at 10)

samp:coun?

Returns number of sampling.
Parameter: NR1 (1 to 127)

trig:coun

Sets number of trigger counting.
Parameter: NR1 (1 to 127)
Example: trig:coun_100 (trigger count set at 100)

trig:coun?

Returns number of trigger count.
Parameter: NR1 (1 to 127)

trac:data?

Returns buffer contents.

trac:cle

Clears buffer contents.

7-5-6. SYStem related command
syst:disp

Turns display On or Off.
Parameter: Boolean
Example: disp_1 (display On)

syst:disp?

Returns display status, On of Off.
Parameter: Boolean

syst:beep:stat

Select beep mode.
Parameter: 0 (Off), 1 (Pass), 2 (Fail)
Example: syst:beep:stat_1 (Beep when pass)syst:beep:stat?

Returns beep mode status.
Parameter: No beep, Beep on Pass, Beep on Failsyst:err?

Returns current system error, if there is any.

syst:vers?

Returns system version.
Parameter: 1.00 ~*rst

Reset system.

*idn?

Returns company name, model No., and system version.
Example: TEXIO, DL-2052, 1.0

7-5-7. STAtus reporting commandstat:ques:enab

Enable bits in the Questionable Data register.
Value
4096
2048
512
2
1

Bit
12
11
9
1
0

EVENT
Limit Test Fail Hi
Limit Test Fail Lo
Ohms Overload
Current Overload
Voltage Overload

43

stat:ques:enab?

Returns Questionable Data register contents in decimal number.

stat:ques:even?

Returns Questionable Data event register contents in decimal number.

stat:pres

Clear Questionable Data enable register.

7-5-8. RS-232C interface command
syst:loc

Enables front panel control and disables remote control

syst:rem

Enables remote control and disables front panel control

7-5-9. IEEE 488.2 common command*cls

Clears event status register (Output Queue, Operation Event Status,
Questionable Event Status, Standard Event Status)*ese?

Returns ESER (Event Status Enable Register) contents.
Example: 130 means ESER=10000010
value

Bit

EVENT

128
32
16
8
4
1

7
5
4
3
2
0

POWER ON
Command Error
Execute Error
Device Error
Query Error
Execute Complete*ese <0~255>

Sets ESER contents.
Example: *ese 65 sets ESER to 01000001*esr?

Returns and clears SESR (Standard Event Status Register).
Example: 198 means SESR=11000110
value

Bit

EVENT

128
32
16
8
4
1

7
5
4
3
2
0

POWER ON
Command Error
Execute Error
Device Error
Query Error
Execute Complete*idn?

Returns company name, model No., and system version.
Example: TEXIO, DL-2052, 1.0*opc?

“1” is placed in the output queue when all the pending operations arecompleted.

*opc

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

*psc?

Returns power On clear status.
Parameter: 0 (cleared), 1 (not cleared)*psc

Clears power On status.
Parameter: 0 (clear), 1 (don’t clear)*rst

Recalls default panel setup (reset the device).

*sre?

Returns SRER (Service Request Enable Register) contents.
Example: 3 means SRER=00000011*sre <0~255>

Value

Bit

Event

64
32
16
8

6
5
4
3

Service Request
Standard Event
Message Available
Questionable Data

Sets SRER contents.
Example: *SRE 7 SRER=00000111

44

*stb?

*trg

Returns SBR (Status Byte Register) contents.
Example: 81 means SBR=01010001
Value

Bit

Event

64
32
16
8

6
5
4
3

Service Request
Standard Event
Message Available
Questionable Data

Manually triggers the DL-2052.

7-5-10. Secondary display: CONFigure2 commandnd

conf2:volt:dc

Configure 2 display to DC Voltage.
Parameter: NR2, min, max
Example: conf2:volt:dc_1 (DC Voltage, 1V range)

conf2:volt:ac

Configure 2 display to AC Voltage.
Parameter: NR2, min, max
Example: conf2:volt:ac_1 (AC Voltage, 1V range)

conf2:curr:dc

Configure 2 display to DC Current.
Parameter: NR2, min, max
Example: conf2:curr:dc_10e-3 (DC Current, 10mA range)

conf2:curr:ac

Configure 2 display to AC Current.
Parameter: NR2, min, max
Example: conf2:curr:ac_10e-3 (AC Current, 10mA range)

conf2:res

Configure 2 display to 2W Resistance.
Parameter: NR2, min, max
Example: conf2:res_10e2 (2W Resistance, 1kΩ range)

conf2:fres

Configure 2 display to 4W Resistance.
Parameter: NR2, min, max
Example: conf2:fres_10e2 (Resistance, 1kΩ range)

conf2:freq

Configure 2nddisplay to Frequency.

Configure 2nddisplay to Period.

conf2:temp

Configure 2nddisplay to Temperature.

conf2:offTurn off the dual display mode (2conf2:per

nd

nd

nd

nd

nd

nd

display is off)ndconf2:stat:func?

Returns function of 2 display.
Parameter: 1 (DCV), 2 (ACV), 3 (DCA-10A), 4 (ACA-10A), 5 (DCA-mA),
6 (ACA-mA), 7 (2WR), 8 (Freq), 9 (TempC), 10 (AC+DCA-10A), 11 (AC+DCV),
12 (AC+DCA-mA), 13 (Diode), 14 (Period), 15 (TempF), 16 (4WR), 17 (Cont.)

conf2:stat:rang?

Returns range of 2 display. Parameter:
DCV: 1 (100mV), 2 (1V), 3(10V), 4 (100V), 5 (1000V)
ACV: 1 (100mV), 2 (1V), 3(10V), 4(100V), 5(750V)
AC+DCV: 1 (100mV), 2 (1V), 3(10V), 4 (100V), 5 (1000V)
DCA, ACA, AC+DCA: 1(10mA), 2(100mA), 3(1A)
2WR, 4WR: 1(100Ω), 2(1kΩ), 3(10kΩ), 4(100kΩ), 5(1MΩ), 6(10MΩ), 7(100MΩ)
DCA, ACA, AC+DCA (10A range): 1 (one range)
Freq, TempC, TempF, Diode, Period, Cont.: 1 (one range)

conf2:auto

Set 2 display to Auto range.
Parameter: 0 (disable auto range), 1 (enable auto range)

conf2:auto?

Return 2 display Auto range status.
Parameter: 0 (disable auto range), 1 (enable auto range)

nd

nd

nd

45

8. APPENDIX
8-1. Firmware Version
BackgroundFirmware version is available for viewing system information.
Firmware version

View firmware version

Shows the DL-2052 firmware version number.

7.

Press the Shift key followed by the 2ND (Menu) key.
The system menu appears.

8.

Press the Down key followed by the Right key. The
firmware version menu appears.

9.

Press the Down key. The firmware version appears.

10.

Press the Exit key to go back to the default display.

8-2. Fuse Replacement
8-2-1. Replace AC source fuse
Step

Rating11.

Take off the power cord and remove the fuse socket using a minus driver.

12.

Replace the fuse in the holder.

T3.15A, 250V

46

8-2-2. Replace input current fuse
Step

Rating

13.

Press the Fuse holder.

14.

The fuse holder comes out. Replace the fuse inserted at the end of theholder.

T2A, 250V

47

8-3. Status system

48

9. Specifications
9-1. General All specifications are ensured only under a single display.
 At least 30 minutes of warm-up time is required before

applying these specifications.

Note Make sure the power ground is connected.

Resolution

Operation Environment
Temperature Coefficient
Storage Environment
Power Source
Dimension
WeightType
Digit
Slow (S)
5 1/2 Digit (119999 count)
Medium (M) 4 1/2 Digit
Fast (F)3 1/2 Digit
Ambient Temperature 0°C ~ 40°C, Relative Humidity < 75%(For full accuracy: 18°C ~ 28°C)< 0.2 x applicable accuracy per degree (°C)(for 0°C ~ 18°C and 28°C ~ 40°C)
Ambient Temperature −10°C ~ 70°C
Relative Humidity: 0°C ~ 35°C < 75%, 35°C ~ 50°C < 50%
AC 100–240V ± 10%, 50–60Hz
265(W) x 107(H) x 350(D) mm
Approx. 2.6kg without option

9-2. Reading rates (readings/sec)
Function
DCV
DCI
ACV
ACI
2/4WΩ (10M/100MΩ)
2/4WΩ (others)
ACV+DCVACI+DCI
Diode

S
10
10
1
1
1
3
0.5
0.5
30

Rate
M
30
30
5
5
1.5
5
1
1
30

F
60
60
20
20
2
8
3
3
60

9-3. DC Voltage
 Max. Input: 1000V DC or Peak on all range

Note
Rate

S

M

F

Range
100.000mV
1.00000V
10.0000V
100.000V
1000.00V
100.00mV
1.0000V
10.000V
100.00V
1000.0V
100.0mV
1.000V
10.00V
100.0V
1000V

Resolution
1µV
10µV
100µV
1mV
10mV
10µV
100µV
1mV
10mV
100mV
100µV
1mV
10mV
100mV
1V

Full Scale
120.000mV
1.20000V
12.0000V
120.000V
1000.00V
120.00mV
1.2000V
12.000V
120.00V
1000.0V
120.0mV
1.200V
12.00V
120.0V
1000V

49

Accuracy
0.012%+8
0.012%+50.012%+50.012%+50.012%+50.012%+50.012%+50.012%+50.012%+50.012%+50.012%+2
0.012%+2
0.012%+2
0.012%+2
0.012%+2

Input Impedance

10MΩ9-4. AC Voltage
 The specifications are only applicable for sinusoidal signals with amplitudes

Note
Rate

S

M

F

Rate

S

M

F

greater than 5% of the Full Scale reading, excluding the DL-2052 which musthave amplitudes greater than 10.0mV when using a range of 100.000mV.
 (*) Input > 450V only for 30sec, < 200V for 20 ~ 45Hz
Range
Resolution
Full Scale
Input Impedance
100.000mV
1µV
120.000mV
1.00000V
10µV
1.20000V
10.0000V
100µV
12.0000V
100.000V
1mV
120.000V
750.00V(*)
10mV
750.00V
100.00mV
10µV
120.00mV
1.0000V
100µV
1.2000V
1.1MΩ in parallel
10.000V
1mV
12.000V
with approx.100pF
100.00V
10mV
120.00V
750.0V(*)
100mV
750.0V
100.0mV
100µV
120.0mV
1.000V1mV
1.200V
10.00V
10mV
12.00V
100.0V
100mV
120.0V
750V(*)
1V
750V
Range
100.000mV
1.00000V
10.0000V
100.000V
750.00V(*)
100.00mV
1.0000V
10.000V
100.00V
750.0V(*)
100.0mV
1.000V
10.00V
100.0V
750V(*)

Accuracy (reading%+digits)
45~10kHz
10k~30kHz
0.2% + 100
1.5% + 300
0.2% + 100
1% + 100
0.2% + 100
1% + 100
0.2% + 100
1% + 100
0.2% + 100
1% + 100
0.2% + 40
1.5% + 80
0.2% + 40
1% + 40
0.2% + 40
1% + 40
0.2% + 40
1% + 40
0.2% + 40
1% + 40
0.2% + 5
1.5% + 10
0.2% + 5
1% + 50.2% + 5
1% + 50.2% + 5
1% + 50.2% + 5
1% + 520~45Hz
1% + 1001% + 1001% + 1001% + 1001% + 100
—
—
—
—
—
—
—
—
—
—

9-5. DC Current
 mA range protected with a 2A fuse 10A range protected with a 12A, 600V fuse 10A only for 30 seconds

Note
Rate

S

M

F

Range

Resolution

Full Scale

10.0000mA
100.000mA
1.0000A
10.0000A
10.000mA
100.00mA
1.000A
10.000A
10.00mA
100.0mA
1.00A
10.00A

0.1µA
1µA
100µA
100µA
1µA
10µA
1mA
1mA
10µA
100µA
10mA
10mA

12.0000mA
120.000mA
1.2000A
10.0000A
12.000mA
120.00mA
1.200A
10.000A
12.00mA
120.0mA
1.20A
10.00A

50

Accuracy(reading%+ digits)
0.05%+15
0.05%+5
0.2%+50.2%+50.1%+6
0.1%+30.2%+30.2%+3
0.1%+2
0.1%+2
0.2%+2
0.2%+2

9-6. AC Current
 The specifications are only applicable for sinusoidal signals withamplitudes greater than 5% of the Full Scale reading, excluding the
DL-2052 which must have amplitudes greater than 1.0mA when using a
range of 10.0000mA.
 mA range protected with a 2A fuseNote
 10A range protected with a 12A, 600V fuse
 10mA/100mA range specifications are verified for < 10kHz
 1A/10A range specifications are verified for < 5kHz
Rate
Range
Resolution
Full Scale
10.0000mA
0.1µA
12.0000mA
100.000mA
1µA
120.000mA
S
1.0000A
100µA
1.2000A
10.0000A
100µA
10.0000A
10.000mA
1µA
12.000mA
100.00mA
10µA
120.00mA
M
1.000A
1mA
1.200A
10.000A
1mA
10.000A
10.00mA
10µA
12.00mA
100.0mA
100µA
120.0mA
F
1.00A
10mA
1.20A
10.00A
10mA
10.00A
Accuracy (reading%+digits)
Rate
Range
20 ~ 50Hz
50 ~ 10kHz
10.0000mA
1.5% + 100
0.5% + 100
100.000mA
1.5% + 100
0.5% + 100
S1.0000A—
1% + 100
10.0000A—
1% + 100
10.000mA—
0.5% + 40
100.00mA—
0.5% + 12
M
1.000A——
10.000A——
10.00mA—
0.5% + 5
100.0mA—
0.5% + 2
F
1.00A
—
—
10.00A
——

9-7. 2W Resistance Max. Input: 500V DC or 500V rms AC *: Relative mode

Note
Rate

S

M

F

Range
100.000Ω
1.00000kΩ
10.0000kΩ
100.000kΩ
1.00000MΩ
10.0000MΩ
100.000MΩ
100.00Ω
1.0000kΩ
10.000kΩ
100.00kΩ
1.0000MΩ
10.000MΩ
100.00MΩ
100.0Ω
1.000kΩ10.00kΩ100.0kΩ
1.000MΩ
10.00MΩ
100.0MΩ

Full Scale
120.000Ω
1.20000kΩ
12.0000kΩ
120.000kΩ
1.20000MΩ
12.0000MΩ
120.000MΩ
120.00Ω1.2000kΩ
12.000kΩ
120.00kΩ
1.2000MΩ
12.000MΩ
120.00MΩ
120.0Ω
1.200kΩ12.00kΩ
120.0kΩ1.200MΩ
12.00MΩ
120.0MΩ

51

Accuracy reading%+digits
0.1% + 8*
0.08% + 5*
0.06% + 5*
0.06% + 5
0.06% + 5
0.3% + 5
3.0% + 8
0.1% + 5*
0.08% + 3*
0.06% + 3
0.06% + 3
0.06% + 3
1.5% + 3
5.0% + 5
0.1% + 2*
0.08% + 2
0.06% + 2
0.06% + 2
0.06% + 2
1.5% + 2
5.0% + 2

9-8. 4W Resistance Max. Input: 500V DC or 500V rms AC

Note
Rate

S

M

F

Range
100.000Ω
1.00000kΩ
10.0000kΩ
100.000kΩ
1.00000MΩ
10.0000MΩ
100.000MΩ
100.00Ω
1.0000kΩ
10.000kΩ
100.00kΩ
1.0000MΩ
10.000MΩ
100.00MΩ
100.0Ω
1.000kΩ10.00kΩ100.0kΩ
1.000MΩ
10.00MΩ
100.0MΩ

Full Scale
120.000Ω
1.20000kΩ
12.0000kΩ
120.000kΩ
1.20000MΩ
12.0000MΩ
120.000MΩ
120.00Ω1.2000kΩ
12.000kΩ
120.00kΩ
1.2000MΩ
12.000MΩ
120.00MΩ
120.0Ω
1.200kΩ12.00kΩ
120.0kΩ1.200MΩ
12.00MΩ
120.0MΩ

Accuracy reading%+digits
0.05% + 8
0.05% + 5
0.05% + 5
0.05% + 5
0.05% + 5
0.3% + 5
3.0% + 8
0.05% + 5
0.05% + 3
0.05% + 3
0.05% + 3
0.05% + 3
1.5% + 3
5.0% + 5
0.05% + 2
0.05% + 2
0.05% + 2
0.05% + 2
0.05% + 2
1.5% + 2
5.0% + 2

9-9. Diode/Continuity
 Max. Input: 500V DC or 500V rms AC

Note
Item
Diode
Continuity

Range
Approx. 2V, 0.5mA
1 ~ 1000Ω

9-10. Frequency
 Max. Input: 750V rms or 1000V peak

Note
Frequency
10Hz ~ 100kHz
100kHz ~ 600kHz
600kHz ~ 800kHz

Sensitivity
0.1V
1V
2.5V

Accuracy (reading%+digits)
0.05% + 15
0.05% + 3
0.05% + 3

9-11. Temperature Sensor errors excluded from Temperature

Note

Thermo Couple
Resolution

specifications
Type
Measurement RangeK
0 ~ +300°C
T
0 ~ +300°CJ
0 ~ +300°C
0.01°C (0 ~ 300°C)

9-12. Accessories
Accessories CD-ROM

Instruction

CAL KEY

GDM-01

Test leads

GTL-107 or GTL-207

52

9-13. External Dimensions Figure53

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