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DCM2000DR
DIGITAL CLAMP METER

INSTRUCTION MANUALDRAWING No. DCM2000DR 01-1310 2040 6010

Table of Contents【1】SAFETY PRECAUTIONS – Before use, read the following safety precautions.–
1-1 Explanation of Warning Symbols ……………………… 001
1-2 Warning Messages for Safe Use ……………………… 001
1-3 Overload Protection ……………………………………… 003【2】APPLICATIONS AND FEATURES
2-1 Applications ……………………………………………… 004
2-2 Features …………………………………………………… 004【3】NAMES OF COMPONENT UNITS
3-1 Main unit and test leads ………………………………… 005
3-2 Display …………………………………………………… 006【4】DESCRIPTION OF FUNCTIONS
4-1 Power Switch & Function Switch ……………………… 007
4-2 Auto power save ………………………………………… 007
4-3 Low battery indication ………………………………… 007
button … 007
4-4 Selecting the measurement function:() button ………… 007
4-5 BACK LIGHT function :button …………………………… 008
4-6 Range Hold:button ………… 008
4-7 Measuring the relative value:
button ………………………………… 008
4-8 Data Hold:() button ……………………… 008
4-9 Peak Hold:button ……………… 0010
4-10 EF (Electric Field) sensing:
4-11 Muting the buzzer ………………………………………… 010
4-12 AC Detection Method …………………………………… 010
4-13 Crest Factor ……………………………………………… 010【5】MEASURING PROCEDURE
5-1 Start-up Inspection ……………………………………… 011
5-2
Auto low-impedance voltage/resistance detecting measurement (Auto Ω• V) … 011
VFD (Variable Frequency Drive) AC voltage measurement … 014
5-3
5-4
AC voltage measurement (ACV) …………………… 015
DC voltage / DC voltage + AC voltage measurement (DCV/ DCV+ACV) … 016
5-5
Current (A) measurements (ACA/DCA/DCA+ACA) …… 017
5-6
Resistance measurement / circuit continuity check ( /) … 019
5-7
Capacitance measurement / Diode test ( / ) …………… 020
5-8
5-9 EF (Electric Field ) sensing ……………………………… 021【6】MAINTENANCE
6-1 Maintenance and Inspection …………………………… 022
6-2 Calibration and Inspection ……………………………… 022
6-3 Storage …………………………………………………… 022
6-4 Battery Replacement …………………………………… 023【7】AFTER-SALE SERVICE
7-1 Warranty and Provision ………………………………… 024
7-2 Repair ……………………………………………………… 024
7-3 SANWA web site ………………………………………… 025【8】SPECIFICATIONS
8-1 General Specifications ………………………………… 026
8-2 Measuring ranges and accuracies …………………… 027

DRAWING No. DCM2000DR 01-1310 2040 6010

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[1] SAFETY PRECAUTIONS*Before use, read the following safety precautions.
This instruction manual explains how to use your digital clamp meterequipped with the DMM facility DCM2000DR. Before use, please readthis manual thoroughly to ensure correct and safe use. After reading it,
keep it together with the product for reference to it when necessary.
Using the product in a manner not specified in this manual may cause
damage to the protection function of the product.
The instructions given under the headings of “ WARNING” and“ CAUTION” must be followed to prevent accidental burn and electric
shock.

1-1 Explanation of Warning Symbols
The meanings of the symbols used in this manual and attachedto the product are as follows:: Very important instructions for safe use.
• The warning messages are intended to prevent accidents
to operating personnel such as burn and electric shock.
• The caution messages are intended to prevent incorrect
handling which may damage the product.
: Refer to Instruction Manual before use: High voltage hazard: Double or reinforced insulation: Direct current (DC): Ground: Alternate current (AC): Resistance: Circuit continuity buzzer: Diode: Capacitor: Backlight: EF antenna: Center position/Polarity indication
1-2 Warning Messages for Safe Use
WARNING
The following instructions are intended to prevent injury such as
burn and electric shock. Be sure to follow them when using themeter:
1. This instrument is a low-voltage clamp meter equipped with
the DMM facility. Do not use it with an electric circuit
exceeding 1000 V.
— 1 —DRAWING No. DCM2000DR 01-1310 2040 6010

2. Voltages over DC 70 V or AC 33 Vrms (46.7 V peak) arehazardous to human body. Take care so as not to touch them.
3. Never input signals exceeding the maximum rated input
value (see 1-3).
4. Never use the meter for measuring voltages of lines
connected to equipment (e.g. motors) that generates inducedor surge voltage since it may exceed the maximum allowable
overload input.
05. Never use the meter if the meter or test leads are damaged
or broken.
06. Never use the meter with the case or battery lid removed.
07. During measurement, do not hold the instrument by a positionon the test pin side of the barrier on the test probe or by aposition beyond the barrier on the clamp sensor.
08. Do not switch the function in the middle of measurement.
09. Before performing measurement, make sure that the function
and range are properly set.
10. Never use the meter when it is wet or with wet hands.
11. Never attempt repair or modification, except for battery
replacement.
12. Perform start-up inspection and inspect the meter at least
once a year.
13. This meter is for indoor use only.
14. Do not use the instrument in a method other than specified.
Otherwise, the protection function may be spoiled.
CAUTION
1. To avoid electric shock, always be sure to discharge thehigh voltage charged in the measured device after
measuring insulation resistance.
2. Do not apply the voltage and current inputs simultaneously.
Otherwise, malfunction will hinder accurate measurement.
3. Do not apply a strong force or impact to the clamp sensor
section.

— 2 —DRAWING No. DCM2000DR 01-1310 2040 6010

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1-3 Overload Protection
Functions
・
・
・

Input
terminals

Max. rated
input

Max. overload
protection input

DC/AC 1000 V

DC/AC 1100 V

Voltage input
inhibited

DC/AC 1100 V

Clamp sensor
DC/AC 2000 A
section

DC/AC 2000 A- (Black),+ (Red)— 3 —DRAWING No. DCM2000DR 01-1310 2040 6010

[2] APPLICATIONS AND FEATURES[3

2-1 Applications
This instrument is an AC/DC clamp meter/digital multimeter ofthe RMS value response type, designed for measurements in
the range specified by IEC 61010-1 CAT. IV, 1000 V.
It is suitable for current and voltage measurements of lowvoltage circuitry, electric equipment and power supply facilities.

3-

2-2 Features• Safety design in compliance with the IEC61010-1.
• Clamp meter with DMM facility, designed for DC, AC and
DC+AC measurements.
• AC measurement in true RMS value with simultaneous
frequency display• Auto power OFF (Can be disabled.)• Convenient facilities including backlight, ZERO (relative value)
display, Data Hold and Peak Hold.
• Low input impedance voltage measurement capable ofattenuating the effects of ghost voltages• VFD (Variable Frequency Drive) frequency measurement.
• EF (Electric Field) sensing.
Measurement Category (Overvoltage Category)Measurement Category II (CAT. II):Line on the primary side of equipment with power cord to beconnected to the receptacle.
Measurement Category III (CAT. III):Line from the primary side or branch of equipment which
directly takes in electricity from a distribution board to thereceptacle.
Measurement Category IV (CAT. IV):Line from the service conductor to the distribution board.

— 4 —DRAWING No. DCM2000DR 01-1310 2040 6010

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[3] NAMES OF COMPONENT UNITS
3-1 Main unit and test leads

BarrierCurrent
measurement
centerposition/polarity
indicator

Power/function
switchFunctionbutton (See
Chapter 4.)

Trigger

Display

Input terminal for
functions otherthan DCA/ACA,COM -Input terminal for
functions otherthan DCA/ACA, +Test Leads

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Location of
non-contact
EF antenna

Clamping current
sensor (CT)・When the removable test pin covers are mounted: CAT.Ⅳ 1000 V
・When the removable test pin covers are not mounted: CAT.II 1000 V

Removable test
pin covers

Test pins
Barrier

Plugs
TL-29

Test probe (red)Test probe (black) When notcovered— 5 —DRAWING No. DCM2000DR 01-1310 2040 6010

[43-2 Display
Sub value (Frequency) display

4-

4-

Units

Main value display…：Auto range…

：VFD：Low battery indication …

：Peak measurement mode…：Circuit continuity check…

：Diode：… Low input impedance…

：Data Hold

：Direct Current…

：Alternate Current：Polarity (-)…

：Zero, relative value

4-

4-

4-

— 6 —

DRAWING No. DCM2000DR 01-1310 2040 6010

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[4] DESCRIPTION OF FUNCTIONS
4-1 Power Switch & Function Switch
Turn this switch to turn on and off the power and select ameasuring function.
4-2 Auto power saveSELECT
Auto power save reduces the battery power consumption by turning
the display off automatically in about 34 minutes after the lastoperation made on this instrument. To recover from the mode set by
button or the set the power
Auto power save, press theswitch to OFF then ON again.
*Auto power save can be disabled by turning the power/function
button depressed. The
switch to ON while holding thedisabling of this mode is indicated by a short beep of the buzzer
beeps and the change of the main value display from 8888 to 0000.
*A small current is flowing even when the display is turned off by Autopower save. After measurement, be sure to set the power/function
switch to OFF.
4-3 Low battery indication
When the built-in batteries have been discharged and the voltage has
dropped to below about 2.3 V, “ ” mark appears in the display.
When this mark flickers or lights, replace both two batteries with newones.
4-4 Selecting the measurement function:
buttonbutton to switch the functions in one of thePress thefollowing sequences.
…
…

・：Auto → ACV → DCV → Ω → Auto…：The
button is disabled with these functions.
：DCV → (DCV+ACV) → DCV…

：ACA → DCA → (DCA+ACA) → ACA

…

：Ω…→…

→…Ω

…
： …→… …→…
4-5 BACK LIGHT function :() buttonbutton is held depressed (for more than 1
When thesec.), the display backlight is turned on. Holding the button
depressed again turns the backlight off. The backlight also
turns off automatically in 32 seconds after it is lit.
— 7 —DRAWING No. DCM2000DR 01-1310 2040 6010

4-6 Range Hold:buttonbutton is pressed, the meter is set in the
When the” disappears frommanual mode and the range is fixed. (“the display.) In the manual mode, each time this button ispressed, the range changes. While checking the unit anddecimal point on the display, select the best range.
To return to the auto range, hold this button pressed for 1” appears on the display.) The
second or longer. (“backlight lighting is unavailable with thefunction. The auto
range can be used only with the frequency ( ) display.
4-7 Measuring the relative value:
buttonbutton is pressed,
lights and the value
When theassuming that the input value at the moment the button ispressed is 0 (reference value) is displayed. This mode is canceledwhen the button is pressed again. It is disabled with thefrequency ( ) display.
4-8 Data Hold:buttonbutton is pressed,
lights and the value
When thedisplayed at that moment is held. The display will not vary evenwhen the measurement input varies. Pressing the button again
extinguishes and the Hold mode is canceled.
*The Hold mode is also canceled when the function switch
position is changed or a button operation other than thebacklight on operation is performed.
) button
4-9 Peak Hold: HOLD (button is held depressed (for more than 1 sec.)
When thelights on theduring the voltage or current measurement,
display and the Peak Hold mode is started. Holding the button
depressed again cancels the Peak Hold mode.
In the Peak Hold mode, the peak value of waveform is held atintervals of 5 msec. provided that the measurement input
continues. The held value is not updated unless the input levelexceeds the current value.
For instance, when the input is a 100 A sine wave AC, the peakvalue is about 141 A (√2 time the rated value).
• Almost the same values are displayed with both the AC and DC
functions.
• Peak Hold does not work with the negative (-) input with both
the AC and DC functions.
— 8 —DRAWING No. DCM2000DR 01-1310 2040 6010

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• When the
button is pressed in the Peak Hold mode,light and the value displayed at that moment is held.
andEven the displayed value is held, the peak value continues tobutton is pressed
be updated internally so, when theagain to release the held value, the latest updated peak value isdisplayed.
● Auto range and Auto power save are disabled automatically in the
button is also disabled in this mode.
Peak Hold mode. The● The Peak Hold mode is canceled when the function switch is,orbutton is pressed.
switched or the● Examples of Peak Hold measurement:* The peak value of the negative (-) current is not held.
DC current peak
Measurement possible

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AC current peak

Measurement possible

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Measurement possible

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Measurement impossible— 9 —DRAWING No. DCM2000DR 01-1310 2040 6010

4-10 EF (Electric Field) sensing: EF button
For details, see section 5-9, “EF (Electric Field) sensing”.
4-11 Muting the buzzer
Any buzzer sound can be muted by turning the power/function switch to ON
button depressed. The muting of the buzzer soundwhile holding theis indicated by the change of the main value display from 8888 to 0000.
To cancel the buzzer muting, set the power/function switch to OFF then ON again.
*This cannot be performed at the same time as disabling of the Auto power save mode.
4-12 AC Detection Method
This meter employs the root-mean-square value method and indicates themagnitude of AC as the same amount of work as DC. Root-mean-square valuesof sinusoidal waves and such non-sinusoidal waves as square waves andchopping waves can be measured by the true RMS (Root Mean Square) circuit.
(The input signal measurement value is used as the scale of the actual input
signal power. It is therefore measured as a more effective value than the value
obtained by average detection.)
4-13 Crest Factor
The CF (crest factor) indicates the peak value of a signal by dividing it by its
root-mean-square value. With most common waveforms such as sinusoidal
wave and chopping wave, the crest factor is low. With low duty cycle pulse
waveforms, the crest factor is high. For the voltages and crest factors fortypical waveforms, see the table below.
Please measure the crest factor by 3 or less.
Input Waveform
Sinusoidal
wave

Vp

Square
wave

Vp

0

p

0

π

π

Chopping Vp
0
wave

Pulse

p

π

2π

2π

2π

Vp
0

τ

2π

[5

5-

Mean Average Crest
Form
0 to PEAK RootSquare Value Value
Factor
FactorVp
Vavg
Vp/Vrms Vrms/Vavg
Vrms

Vp

Vp

2 Vp
−
√2
π
=0.707 Vp =0.637 Vp =1.414
Vp
−

2
√

Vp

Vp

1

Vp
−

Vp

Vp
−
√3
2
=0.577 Vp =0.5 Vp =1.732

Vp

τ
τ−・Vp −
・Vp
2π
2π

3
√

2π
−
τ

π
−
2√
2
=1.1111
2−

3√=1.1552π−
τVoltages of Various Waveforms— 10 —DRAWING No. DCM2000DR 01-1310 2040 6010

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[5] MEASURING PROCEDUREWARNING
1. Do not apply an input signal exceeding the maximum rated valueof each function.
2. During measurement, do not change the function switch.
3. During measurement, do not touch the test pin side of the barrierof the test probe or the part past the barrier of the clamp sensor.
4. When measurement is finished, remove the clamp sensor (CT)and test lead from the object measured and return the function
position.
switch to the
5. Use test leads matching the measurement category of themeasured point.
5-1 Start-up Inspection
Check the following items before proceeding to measurement.
• Exterior check: Check the external view for irregularity caused bydropping, etc.
is not lit. If it is lit, replace the• Check that the battery alarm
batteries with new ones.
• Accessories: Check that the test leads are free of irregularity such as
wire disconnection or crack.
and short the test pins to check that
• Set the function switch to
the test leads are free of wire disconnection.
• Make sure that the main unit and hand are not wet with water, etc.
*If the display shows nothing, the batteries may be exhausted completely.

5-2
Auto low-impedance voltage/resistance detecting
measurement (Auto Ω• V)
WARNINGAs the initial input impedance is as low as 2.5 kΩ, a high current
flows through the measured circuit, which may exert adversary
effects in measurements of a circuit with ground-fault interrupteror circuit/device with low current capacity. When measuring a,
voltage that requires high input impedance, be sure to use theorfunction.
(For example, the initial max. load current in AC 1000 V
measurement is high at 566 mA (1000 V x 1.414 / 2.5 kΩ) but theinternal resistance is switched immediately so the load current
drops to about 3.37 mA (1000 V × 1.414 / 420 kΩ).
— 11 —DRAWING No. DCM2000DR 01-1310 2040 6010

Function

Input

DCV

±DC 1.500-1000 V

6.000/60.00/600.0/1000 V

RangesACV

AC 1.500-1000 V

6.000/60.00/600.0/1000 VΩ

0.0 Ω - 10.00 MΩ

600.0/6.000 k/60.00 k/600.0 k/6.000 M/40.00 MΩ

*The accuracy-guaranteed frequencies of theACVmeasurement are from 50 to 60 Hz.
① Use the test leads for measurement.
This function measures the input by automatically identifying
the type from the resistance (Ω), AC voltage (ACV) and DC
voltage (DCV).
The low input impedance makes it possible to reduce theeffects of the ghost voltage overlapped with the measuring
target voltage. The ghost voltage refers to the voltage induced
from adjacent wires and unnecessary floating signals.
② Standby mode
When no input is applied, the main value display of the LCD”.
shows “
③ Identification conditions• When the input voltage is higher than 1.5 V, this function
automatically identifies whether the input type is AC voltage(ACV) or DC voltage (DCV) and displays it.
*When DCV and ACV are superimposed, the value of thesignal with the higher crest value is displayed.
• When there is no input voltage and the resistance is below 10
MΩ, this function displays the resistance value. The buzzer
beeps if the resistance is lower than the threshold (20 to 200 Ω).
④ Low input impedance• Applying a high voltage to input impedance of hundreds of kΩ
has a potential of causing a problem. This is the reason thatis displayed to notice the user of the low input impedance mode.
• When the displayed voltage value is about 50 V or more, theinput impedance is switched instantaneously to one of thefollowing values.
1.5-50 V: 2.5 kΩ. 50-100 V: 10 kΩ. 100-300 V: 60 kΩ. 300-600 V:
200 kΩ. 600-1000 V: 420 kΩ.
— 12 —DRAWING No. DCM2000DR 01-1310 2040 6010

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Notes:• The fixed function can be selected with the
button. The
auto identification mode can be confirmed with [] lit on themain value display when there is no input signal.
• When the
button is pressed once while a measurement
value is displayed, the current function (Ω, DCV or ACV) andrange are fixed and the instrument is put to the manual range
extinguished).
mode (The range can be switched by pressing the button again.
Holding the button depressed for more than 1 sec. lights
and the instrument enters the auto range mode, but the function
is still fixed.
• Auto identification is disabled in the manual range and fixed
function mode. Note that, when the instrument is set to theresistance function and manual range mode, the function is notswitched automatically to the voltage function even when avoltage is input.
— 13 —DRAWING No. DCM2000DR 01-1310 2040 6010

5-3

VFD (Variable Frequency Drive) AC voltage measurement

WARNING
This function uses a low-pass filter to cut high frequencies. As
there is a possibility that a voltage higher than the displayed value
to confirm that there isexists, first measure the voltage withno hazardous voltage before selecting thefunction.
Function
……ACV
……Hz

Input
0.000 ～ 1000 V
10.0 ～ 400 Hz

Ranges6.000/60.00/600.0/1000 V
199.9/1999 Hz*The accuracy-guaranteed frequencies of this measurement arefrom 10 to 400 Hz.
*The filter characteristic is 0.9 kHz, at about -3 dB.
① Use the test leads for measurement.
② A drive voltage with which the noise in the carrier frequency is
cut using a sine wave synthesized with an inverter can bemeasured. (Low-pass filter)③ The frequency (Hz) input sensitivity is determined by the range
being used for display. A different input sensitivity can also bebutton. If the Hz
selected manually by pressing thevalue becomes unstable, select a higher voltage range to
avoid the effects of electrical noise. If the Hz value is null,
select a lower voltage range.
④ The auto range switching is for the 600/1000 V ranges. The
range switching of the 6/60 V ranges is manual.

AC— 14 —DRAWING No. DCM2000DR 01-1310 2040 6010

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AC voltage measurement (ACV)Function
……ACV
……Hz

Input
0.000 ～ 1000 V
40.0 ～ 1999 Hz

Ranges6.000/60.00/600.0/1000 V
199.9/1999 Hz① Use the test leads for measurement.
② The frequency (Hz) input sensitivity is determined by the range
being used for display. A different input sensitivity can also bebutton. If the Hz
selected manually by pressing thevalue becomes unstable, select a higher voltage range to
avoid the effects of electrical noise. If the Hz value is null,
select a lower voltage range.

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AC

— 15 —DRAWING No. DCM2000DR 01-1310 2040 6010

5-5

DC voltage / DC voltage + AC voltage measurement (DCV/ DCV+ACV)
Function……DCV……DCV+ACV
……Hz

Input
±0.000-1000 V
0.000-1000 V
10.0-1999 Hz

5-

Ranges6.000/60.00/600.0/1000 V
6.000/60.00/600.0/1000 V
199.9/1999 Hz*The frequency is not displayed when DCV is more than 50 % of
ACV.
① Use the test leads for measurement.
button switches the function in② Each press of thesequence of: DCV → (DCV+ACV) → DCV.

①
②

DC
AC

DC

DCV

DCV + ACV— 16 —DRAWING No. DCM2000DR 01-1310 2040 6010

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5-6

Current (A) measurements (ACA/DCA/DCA+ACA)
CAUTION

1. To improve the measurement accuracy, position the measured
conductor as close as possible to the center of the clamp sensor.
2. Always clamp around a single wire at a time. Correct current
measurement is impossible if multiple wires, a cable with multiple
conductors or parallel cords are clamped.
3. Correct measurement may be impossible if the clamp sensor is
not closed completely.
4. Malfunction may occur if the instrument is used in a strong
electromagnetic field.
5. When the 0 adjustment is performed by pressing the
button during the DC current (DCA) function measurement, thedisplayed value may vary by a few counts due to the reason
described above, but this is not malfunction. The 0 adjustment
should be performed after the orientation of the instrument has
been changed (because of the effects of external magnetic field or
terrestrial magnetism) or when the temperature change is large.

① Use the clamp sensor for measurement.
button switches the function in② Each press of thesequence of: ACA → DCA → (DCA+ACA) → ACA.

DC
AC

DC

AC

ACA

DCA

DCA + ACA

— 17 —DRAWING No. DCM2000DR 01-1310 2040 6010

5-6-1 AC current measurement (ACA)

5-Function
ACA
Hz

D
H

Input
0.0-2000 A
20.0-400 Hz

Ranges200.0/2000 A
199.9/1999 Hz*The accuracy-guaranteed frequencies of this measurement arefrom 40 to 400 Hz.
button so thatlights.
① Press the② Open the clamp sensor, position the wire to be measured andclose the clamp sensor completely.
③ Read the displayed value.
Note:
When the clamp sensor is opened/closed or the function isswitched, a count of some tens is displayed temporarily. This
display returns to 0 after taking certain time because of the RMS
response, but there will not be problem in the measurement
value even if the measurement is started before the display
returns to 0.

①

③

④

5-

5-6-2 DC current measurement (DCA)
Function
DCA

Input±0.0-2000 A

Ranges200.0/2000 A① Press the
button so thatlights.
button② Wait until the display stabilizes, then press theto perform the 0 adjustment. (lights on the LCD display.)③ Open the clamp sensor, position the wire to be measured andclose the clamp sensor completely.
④ Read the displayed value.
*Align the orientation of the arrow on the side of the clamp
sensor with the orientation of the measured current. If they
are not aligned, the displayed polarity becomes – (negative).

— 18 —DRAWING No. DCM2000DR 01-1310 2040 6010

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5-6-3 DC current + AC current measurement (DCA+ACA)
Function
DCA + ACAHz

Input
0.0-2000 A
20.0-400 Hz

Ranges200.0/2000 A
199.9/1999 Hz*The frequency is not displayed when DCV is more than 50 % of ACV.
① Press the
button so that bothandlight.
② Wait until the display stabilizes, then press the
button to
perform the 0 adjustment. ( lights on the LCD display.)③ Open the clamp sensor, position the wire to be measured andclose the clamp sensor completely.
④ Read the displayed value.
5-7

Resistance measurement / circuit continuity check ( /WARNING
Never apply an external voltage to the measurement terminals.
Function

Input
0.0 Ω - 40.00 MΩ
0.0-600.0 Ω)

Ranges600.0/6.000 k/60.00 k/600.0 k/6.000 M/40.00 MΩ
600.0 Ω*The open voltage between the input terminals is about 0.5 V.
① Use the test leads for measurement.
② Each press of the
button switches the function in→ →…
sequence of : →With , the buzzer beeps when the resistance is below thethreshold (10-200 Ω).

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— 19 —DRAWING No. DCM2000DR 01-1310 2040 6010

5-8

Capacitance measurement / Diode test (

/

)

5-

WARNING
Never apply an external voltage to the measurement terminals.
CAUTION
1. Discharge the measured capacitor before measurement.
2. Since this instrument measures the capacitance by applying
current to the measured capacitor, it is not suitable for measuring
a capacitor with high leak current such as an electrolytic capacitor.
Function

Input
0.00 nF ～ 2000 µF
0.000 ～ 1.000 V

Ranges60.00 n/600.0 n/6.000 µ/60.00 µ/600.0 µ/2000 µF−*The open voltage of the diode test is about 1.8 V① Use the test leads for measurement.
② Each press of the
button switches the function insequence of→ → →…

μF ornF

Forward testing

Backward testingNon-defective cases:
Forward voltage, drop
display
Defective cases: 0.000 V
display, OL display

Non-defective cases:
OL display
Defective cases: Other
display— 20 —DRAWING No. DCM2000DR 01-1310 2040 6010

①

②

③

④

µ

in

010

5-9 EF (Electric Field ) sensing
CAUTION
1. Before EF sensing, check the operation of the instrument using aknown power source.
2. During EF sensing, do not hold the instrument by a position beyond the barrier.
3. Even when no voltage is sensed, this does not always mean that no
voltage exists because a voltage below the sensing threshold may exist.

① The EF sensing judges the presence of electrical voltage in a simplified
manner by detecting the electrical field produced by AC voltage.
② When the
button is pressed while a function other than voltage orcurrent (other thanor
) is selected, the EF sensing is activatedand “E.F.” lights on the main value display of the LCD panel.
The EF sensing is canceled by pressing the
button or changing
the function switch position.
③ The signal intensity is displayed by segments such as “- - -“. The interruption
intervals of the buzzer beep also changed. The higher the sensed voltage, thenumber of displayed “-“ increases and the buzzer beeps at shorter intervals.
④ Antenna• Non-contact sensing: The antenna is located in the proximity of themarking on the clamp sensor.
• Contact sensing: Bring the test pin of the test lead connected to the *measurement terminal in contact. This method is capable of moreaccurate sensing by identifying the non-grounded and groundedsides, etc. The display shows “-“ and the buzzer beeps with the nongrounded (Hot) side, while the display remains “E.F.” and the buzzer
does not beep with the grounded side.
*“E.F.” that should be displayed with the grounded site may become “-“when the wiring is long, etc.

Live(HOT)

Contact
Non-contact
Notes:
marking on the clamp sensor is brought in• If the area around thecontact with a non-grounded cabinet of equipment or touched by hand,the “-“ display and the buzzer beep may sometimes appear.
• Due to the high sensitivity, the EF sensing may be activated near aninverter generating high frequencies, even when it is as apart as more thansome tens of centimeters from the instrument.
— 21 —DRAWING No. DCM2000DR 01-1310 2040 6010

[6] MAINTENANCE6-WARNING
1. The following instructions are very important for safety.
Read this manual thoroughly to ensure correct maintenance.
2. Calibrate and inspect the meter at least once a year to ensure
safety and maintain its accuracy.
6-1 Maintenance and Inspection
1) Appearance: Is the meter not damaged due to falling orother cause?
2) Test leads:•Are the core wires not damaged or exposed from the test leads?
•Is the plug when inserted to the input terminal not loose?
If any of the above problems exists, stop using the meter andrequest for repair.
6-2 Calibration and Inspection
For more information, please contact Sanwa’s authorized agent /distribute service provider, listed in our website.
See section 7-3.
6-3 Storage
CAUTION
1. The panel and case are not resistant to volatile solvent and mustnot be cleaned with thinner or alcohol.
2. The panel and case are not resistant to heat. Do not place themeter near heat-generating devices.
3. Do not store the meter in a place where it may be subjected tovibration or where it may fall.
4. Do not store the meter in places under direct sunlight, or hot,cold or humid places or places where condensation is
anticipated.
5. If the meter will not be used for a long time, remove thebatteries.

— 22 —DRAWING No. DCM2000DR 01-1310 2040 6010

1

2

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6-4 Battery Replacement
Batteries when the meter is shipped:
A battery for monitoring has been installed prior to shipmentfrom the factory. It may be discharged before the expiration of
the described battery life.
*The battery for monitoring is a battery used to check thefunctions and performance of the product.
WARNING
1. To avoid electric shock, do not remove the battery holder
cover with an input being applied to the measuring terminals
or clamp sensor or during measurement.
2. Make sure that the power/function switch is set to OFF
before proceeding to the battery replacement.
① Using a screwdriver,loosen the two screws
retaining the battery
holder cover.
② Remove the floatedbattery holder cover.
③ Replace both of the twobatteries in the battery
holder by observing thecorrect polarity.
④ Tighten the battery holder
retaining screws in theoriginal positions.

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010

— 23 —DRAWING No. DCM2000DR 01-1310 2040 6010

[7] AFTER-SALE SERVICE
7-1 Warranty and Provision
Sanwa offers comprehensive warranty services to its end-users andto its product resellers. Under Sanwa's general warranty policy, each
instrument is warranted to be free from defects in workmanship ormaterial under normal use for the period of one (1) year from the dateof purchase.
This warranty policy is valid within the country of purchase only, andapplied only to the product purchased from Sanwa authorized agent
or distributor.
Sanwa reserves the right to inspect all warranty claims to determine
the extent to which the warranty policy shall apply. This warranty shallnot apply to disposables batteries, or any product or parts, whichhave been subject to one of the following causes:
1. A failure due to improper handling or use that deviates from the
instruction manual.
2. A failure due to inadequate repair or modification by people otherthan Sanwa service personnel.
3. A failure due to causes not attributable to this product such as fire,
flood and other natural disaster.
4. Non-operation due to a discharged battery.
5. A failure or damage due to transportation, relocation or dropping
after the purchase.
7-2 Repair
Customers are asked to provide the following information whenrequesting services:
1. Customer name, address, and contact information
2. Description of problem
3. Description of product configuration
4. Model Number
5. Product Serial Number
6. Proof of Date-of-Purchase
7. Where you purchased the productPlease contact Sanwa authorized agent / distributor / service
provider, listed in our website, in your country with above information.
An instrument sent to Sanwa / agent / distributor without above
information will be returned to the customer.
— 24 —DRAWING No. DCM2000DR 01-1310 2040 6010

7-

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Note:
1) Prior to requesting repair, please check the following:
Capacity of the built-in battery, polarity of installation anddiscontinuity of the test leads.
2) Repair during the warranty period:
The failed meter will be repaired in accordance with theconditions stipulated in 7-1 Warranty and Provision.
3) Repair after the warranty period has expired:• If it is expected that servicing can restore the originalfunctioning of the instrument, we will service it for a
price upon request of the user.
• The service charge or transport freight could sometimes
become higher than the product price. Please consult us
before asking for servicing.
• T h e m i n i m u m re t e n t i o n p e r i o d o f t h e s e r v i c i n g
performance parts of this instrument is six (6) years after
the discontinuation of production. This period is equal to
the servicing available period. However, the retention
p e r i o d o f a p a r t m a y b e re d u c e d i f i t b e c o m e sunavailable due to discontinuation of production of thepart manufacturer, etc.
4) Precautions when sending the product to be repaired
To ensure the safety of the product during transportation,
place the product in a box that is larger than the product5 times or more in volume and fill cushion materials fully
and then clearly mark “Repair Product Enclosed” on thebox surface. The cost of sending and returning the
product shall be borne by the customer.
7-3 SANWA web site
http://www.sanwa-meter.co.jp
E-mail: exp_sales@sanwa-meter.co.jp

ce
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010

— 25 —DRAWING No. DCM2000DR 01-1310 2040 6010

[8] SPECIFICATIONS

D

8-1 General Specifications

S

Operation method

Δ-Σ method

AC detection method True RMS
Display

Main value: Max. 6000 countSub value (frequency): Max. 1999 countSampling rate

Approx. 5 times/sec.

Over-range display"OL" is displayed

Range switching

Auto, manual

Polarity switching

Auto (Only “-“ is displayed.)

E

A

8-

The
indicator lights on the display when the
Low battery indication supply voltage from the internal batteries drops
below about 2.3 V.
Current measurement
Clamp type current sensor (CT)methodClamp opening diameter Max. about φ55 mm
Operating environmental Altitude no more than 2000 m, indoor use,conditions
environmental pollution degree II
Temperature: 5 to 40 °C.
Operating temperature/ Humidity is as follows (without condensation).
5 to 31 °C: Max. 80 %RH.
humidity ranges
31 to 40 °C: Linearly decreases from 80 %RH to 50 %RH.
Temperature -10 to +40 °C: No more than 80 %RH,
without condensation.
Storage temperature/ Temperature +40 to +50 °C: No more than 70 %RH,
without condensation.
humidity ranges(Remove the internal batteries when the instrument
is not to be used for long time.)

DC

6

6

Temperature
coefficient

At below 18 °C or above 28 °C, Multiply accuracy
by x0.15 per 1 °C.
(The coefficient is x0.25 with thefunction.)

Power supply“AA” size battery (R6) 1.5 V x 2

Auto power save

Power save mode is activate in approx. 34 min.
after the last operation. TYP. 10 µA

Current
consumption

Approx. 14 mA TYP. (A function)
Approx. 5 mA TYP. (Functions other than A)

AC

Battery life

Approx. 80 hours (A function)
Approx. 240 hours (Functions other than A)*Life when the backlight is off.

6

— 26 —DRAWING No. DCM2000DR 01-1310 2040 6010

H.

Dimensions/weight

H264×W97×D43 mm / approx. 640 g (including batteries)

Safety standards

IEC/UL/EN61010-1
Ed. 3.0, IEC/UL/EN61010-2-033
IEC61010-1, IEC61010-2-030
CAT. IV 1000 V, Ed. 1.0 &IEC/UL/EN61010-2-032
Ed. 3.0
IEC61010-2-32, IEC61010-31

EMC directive

IEC61326-1
Environment under 3 V/m field intensity: Accuracy not
guaranteed with the capacitance measurement function.
Specified accuracy ±200 dgt. with other functions.
Environment under over 3 V/m field intensity:
Accuracy not guaranteed.

Accessories

Instruction manual, test leads (TL-29), carrying
pouch (C-DCM2000DR)

8-2 Measuring ranges and accuracies
Accuracy-guaranteed temperature/humidity ranges: 23 ±5 °C, no
more than 80 %RH (without condensation)
rdg: Reading. dgt: Lowest digit.
Because of the RMS response, the accuracy-guaranteed range andcrest factor (CF) are as follows.
Range: 5 % to 100 % of measuring range.
CF: Full-scale CF < 1.4
Half-scale CD < 2.8
DCV (DC voltage)
Ranges6.000 / 60.00 /600.0 / 1000 V

Accuracy±（0.5 %rdg + 5 dgt）

H,

Note: The input impedance is about 10 MΩ at 50 pF.

H,(AUTO Ω V) DCV (DC voltage)

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010

Ranges6.000 / 60.00 /600.0 / 1000 V

Accuracy±（1.3 %rdg + 5 dgt）

Note:
DCV threshold is DC 1.5 V or more or DC -1.5 V or less.
The initial input impedance is about 2.5 kΩ at 600 pF. When the displayed
voltage is about 50 V or higher, the input impedance is switchedinstantaneously.
1.5-50 V: 2.5 kΩ. 50-100 V: 10 kΩ. 100-300 V: 60 kΩ.
300-600 V: 200 kΩ. 600-1000 V: 420 kΩ.

ACV (AC voltage): The frequency is from 50 to 400 Hz.
Ranges6.000 / 60.00 /600.0 / 1000 V

Accuracy±（1.2 %rdg + 5 dgt）

Note: The input impedance is about 10 MΩ at 50 pF.

— 27 —DRAWING No. DCM2000DR 01-1310 2040 6010

DCV+ACV (DC voltage + AC voltage): The AC frequency is from 50 to 400 Hz.
Ranges6.000 / 60.00 /600.0 / 1000 V

Accuracy±(1.4 %rdg + 7 dgt）

Note: The input impedance is about 10 MΩ at 50 pF.

(AUTO Ω V) ACV (AC voltage): The frequency is from 50 to 60 Hz
Ranges6.000 / 60.00 /600.0 / 1000 V

Accuracy±(1.5 %rdg + 5 dgt）

Note:
ACV threshold is 1.5 V AC or more.
The initial input impedance is about 2.5 kΩ at 600 pF. When the displayed
voltage is about 50 V or higher, the input impedance is switchedinstantaneously.
1.5-50 V: 2.5 kΩ. 50-100 V: 10 kΩ. 100-300 V: 60 kΩ.
300-600 V: 200 kΩ. 600-1000 V: 420 kΩ.

ACV (AC voltage): Low-pass filter is applied.
Ranges6.000 / 60.00 /600.0 / 1000 V

Frequency
10-20 Hz20-200 Hz
200-400 Hz

Accuracy±(4.0 %rdg + 80 dgt)±(2.0 %rdg + 60 dgt)±(7.0 %rdg + 80 dgt)

DC

2
2
2
2
2

Pe

Hz

6
6
6
1

Note: The filter characteristic is 0.9 kHz, at about -3 dB.
• The accuracy decreases linearly from 200 Hz (2 % + 60 dgt) to 400 Hz(7 % + 80 dgt).

DCA (DC current)

Ranges200.0 A
2000 A
0-500 A
2000 A 501-2000 A±(2.0 %rdg + 5 dgt)±(2.0 %rdg + 5 dgt)±(3.0 %rdg + 5 dgt)

Note: Accuracy after the zero point is set by pressing the

ACA (AC current)

Ranges200.0 A
2000 A
0-500 A
2000 A 501-2000 A
200.0 A
2000 A
0-500 A
2000 A 501-1000 A
2000 A 1001-2000 A

2
2

AccuracyFrequency
50-60 Hz… 40-49.9 Hz
60.1-400 Hz

button.

Accuracy±(2.0 %rdg + 5 dgt)±(2.5 %rdg + 5 dgt)±(3.0 %rdg + 5 dgt)±(2.5 %rdg + 5 dgt)±(3.0 %rdg + 5 dgt)±(3.5 %rdg + 5 dgt)
Not specified— 28 —DRAWING No. DCM2000DR 01-1310 2040 6010

Ω,

6
6
6
4

z.

Hz

z

DCA+ACA (DC current + AC current)
Ranges200.0 A
2000 A
200.0 A
2000 A
0-1000 A
2000 A 1001-2000 A……40-49.9 Hz
60.1-400 Hz

Accuracy±(3.0 %rdg + 8 dgt)±(3.5 %rdg + 5 dgt)
Not specified

Note: Accuracy after the zero point is set by pressing the

button.

Peak Hold
When the waveform width is 5 msec, or more, add ± 250 dgt to the accuracy.
Hz (Frequency)
Ranges6.000 V
60.00 V
600.0 V
1000 V
6.000 V
60.00 V
600.0 V
1000 V
200.0 A
2000 A

Input sensitivity Measurable frequency
Accuracy
2V
20 V
40.0-1999 Hz
100 V
600 V
0.6-2.3 V±(0.1%rdg + 4 dgt)
10.0-400 Hz
6-24 V
60-240 V
600 V
10.0-200 Hz
10 A
20.0-400 Hz
100 A

Note: The input sensitivity is specified as the RMS value of the sine wave.The
decreases linearly from10 % (at 200 Hz) to 40 % (at 400 Hz)
sensitivity ofof the full scale.
*The frequency is displayed when the DC component is less than 50 % of ACrms.
*In the 1000 V range, the frequency is displayed when the DC component is lessthan 100 V.

n.

010

Frequency
DC or
50-60 HzΩ,

Ω (Resistance)

Ranges600.0 Ω / 6.000 kΩ / 60.00 kΩ
600.0 kΩ
6.000 MΩ
40.00 MΩ

Accuracy±(0.5 %rdg + 5 dgt)±(0.8 %rdg + 5 dgt)±(1.2 %rdg + 5 dgt)±(2.3 %rdg + 5 dgt)

Note: The open voltage is about DC 0.45 V.
function, the resistance is displayed when it is below about 10 MΩ.
• With the— 29 —DRAWING No. DCM2000DR 01-1310 2040 6010

Circuit continuity check
The buzzer beeps at below the threshold (10 to 200 Ω).
Response time: Approx. 32 msec.
CapacitanceRanges60.00 nF / 600.0 nF / 6.000 µF
60.00 µF / 600.0 µF
2000 µF

Accuracy±(2.0 %rdg + 5 dgt)±(3.5 %rdg + 5 dgt)±(4.0 %rdg + 5 dgt)

Note: Accuracy applicable to capacitors with low leak current equivalent toor lower than the film capacitor.

Diode
Ranges1.000 V

Accuracy±(1.0 %rdg + 3 dgt)

Note: The open voltage is about 1.8 V DC or less, and the measurement
current is about 0.56 mA.

EF (Electric Field) sensing
A voltage or electric field of about 60 V or more is detected.
The bar graph and intermittent buzzer beeps change in threesteps according to the field intensity.
Sensing frequency: 50/60 Hz
Sensing antenna: Area around the marking on the clamp sensor.
Contact type EF sensing: + terminal test lead.
Accuracy calculation method
Example) ACV (AC voltage) measurement
Displayed value: 100.0 V
Range and accuracy: ±(1.2 %rdg + 5 dgt) in 600.0 V range
Error: ±(100.0 V x 1.2 % + 5 dgt) = ±1.7 V
True value: 100.0 V ±1.7 V (98.3 to 101.7 V)* In the 600.0 V range, the 5 dgt corresponds to 0.5 V.

The product specifications described in this manual and its
appearance are subject to change without notice for
improvement or other reasons.
— 30 —DRAWING No. DCM2000DR 01-1310 2040 6010

MEMO

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DRAWING No. DCM2000DR 01-1310 2040 6010

本社=東京都千代田区外神田2−4−4･電波ビル
郵便番号=101-0021･電話=東京（03）3253−4871㈹大阪営業所=大阪市浪速区恵美須西2−7−2
郵便番号=556-0003･電話=大阪（06）6631−7361㈹SANWA ELECTRIC INSTRUMENT CO.,LTD.
Dempa Bldg., 4-4 Sotokanda2-Chome Chiyoda-Ku,Tokyo,Japan

大豆インキを使用しています。

This manual emplys soy ink.

01-1310…2040…6010

DRAWING No. DCM2000DR 01-1310 2040 6010