[1] SAFETY PRECAUTIONS Before use, read the following safety precautions.
This instruction manual explains how to safely use your new
DG34a/DG35a MΩ tester. Before use, please read this manual
thoroughly. After reading it, keep it together with the productso you can refer to it when necessary.
If this product is not used as specified in this manual, theprotection function of this product may be compromised.
Instructions given under the “ WARNING” and “ CAUTION”
headings must be followed to prevent accidental burns orelectrical shock.
1-1 Explanation of Warning Symbols
The meanings of the symbols used in this manual and on the
product are as follows.
Very important instruction for safe use.
The warning messages are intended to prevent accidents
to operating personnel such as burn and electrical shock.
The caution messages are intended to prevent damage tothe instrument.
High-voltage warming. (High voltage is generated fromtest pins.): Direct current (DC): Ground〜 : Alternating current (AC): Double insulation (Protection Class II)
LINE/: Line/Plus input (Red)EARTH/: Earth/Minus input (Black)
1-2 Warning Instruction for Safe Use
WARNINGTo ensure that you use the instrument safely, be sure toobserve the instructions.
1. Never use the instrument on electric circuits that
Exceed 3.6 kVA.
Display
2. Pay special attention when measuring
voltages of AC 33
Winding
Vrms (46.7 V peak) or DC 70 V or more
to avoid injury.
directionsof test3. The clamp sensor provided withthisleads
instrument isAC/DCbuttonexclusively
for low-voltage use. Perform clamp current
REL button
measurement with 600 V or less lines.
4. When testing MΩ, disconnect the power supply of theMΩ
BACKLIGHT
device being measured.
START/
5. Since
125 V) is generated
STOP
buttonhigh voltage (500 V/ 250 V/button
during the testing of MΩ, be carefulDATA
aboutHOLD
electric shock.
6. To avoid electric shock, always be button
sure to discharge thehigh voltage charged in the measured device afterPowertesting MΩ.
7.
Never
apply an input signal exceeding the maximum
switch/rating input value.
Function
switch/Range switch

8. Never use the instrument to measure a line connected toequipment (i.e. motors) that generates induced or surge
voltage since it may exceed the maximum allowable voltage.
9. Never use the instrument if the main unit or test leads
are damaged or broken.
10. Never use the instrument when it is not in its case.
11. Always keep your fingers behind the finger guards on theprobe and the clamp sensor barrier when taking
measurements.
12. Be sure to disconnect the test pins from the circuit whenchanging the function.
13. Before starting measurement, make sure that thefunction and range are properly set in accordance withthe measurement.
14. Never touch the instrument with wet hands or use it in adamp environment.
15. When MΩ is tested, measurement voltage is generated
from the black test probe connected to the ground side,
so do not touch the test pin.
16. When testing MΩ, first connect the black test probe to
the ground side of the device being measured and thenconnect the red test probe to the line side. Whendisconnecting them, first remove the red test probe on
the line side and then remove the black test probe on the
ground side.
17. Never open the instrument case except when replacing
batteries. Do not try to alter the original specifications.
18. To ensure safety and maintain accuracy, calibrate andcheck the instrument at least once a year.
19. The instrument is for indoor use only.

1. When MΩ is being tested, the measurement terminal ofthis instrument generates high voltage. It isre c o m m e n d e d t h a t d e v i c e s a n d p a r t s ( s u c h a s
semiconductors) with low or unknown withstanding
voltage be disconnected from the electric wiring (circuit)
before it is measured. This is particularly important withcomputer-related devices.
2. When testing MΩ, set the value of the rated voltage as
close to the working voltage of the circuit being
measured as possible.
Example: With a 100 V circuit, use a rated voltage of
125 V.
− 2 −Test pins

Clamp
sensor(when stored)

WARNING
When canceling an operation, do not turn the function
switch during measurement.
4-1 Power Switch/Function Switch/Range Switch (AllFunctions):
Turn this switch to turn the power ON and OFF and to selectthe measurement function, as well as the rated voltage rangeof the MΩ test function.

Battery
compartment
cover fixing
screwsBattery
compartment
cover

When notcoveredFinger guards
Test probe (red)Test probe (black)

Clip adapter
CL-DG3a

3-2 Display
Not used with this instrument
Measurement
REL
voltage generation
measurement

Low battery
indication
Data holdoperationDCmeasurement
NegativepolarityACmeasurement

4-2 MΩ START/STOP Button (MΩ Test Function)
Each time the START/STOP button is pressed in the MΩ test
function, the mode switches in the order of the MΩ testing
voltage generation & MΩ testing mode g the MΩ testing
voltage stop & measurement value data hold mode g the MΩtesting voltage generation & MΩ testing mode g ....
In the MΩ testing voltage generation & MΩ testing mode, isilluminated on the display and the selected measurement
voltage is generated.
In the MΩ testing voltage stop & measurement value datahold mode, the measurement voltage is stopped and themeasurement value is maintained. “ ” is illuminated on thedisplay.
Notes:• The MΩ testing voltage generation mode automaticallystops after about 30 seconds. Should this be the case, themeasurement value will not be held.
• W h e n t h e m e a s u re m e n t f u n c t i o n i s s w i t c h e d , t h emeasurement value data hold is canceled.
4-3 AC/DC Button (V · CLAMP A Positions)
Each time this button is pressed in the V or CLAMP A
position, the measurement function switches in the order ofAC g DC g AC g ….
4-4 REL Button (DCV · ACV · DCA · ACA Functions)
When the DCV, ACV, DCA or ACA function is activated, press
this button. “ ” and “ ” will be illuminated on the display,
and the measurement value will be set using the input value
at the time the button was pressed as a reference. To cancel
this mode, press the button again and keep it depressed formore than 2 seconds.
Ex.) Display after the REL button is pressed during DC 100 V
input
Actual input value
DC 0120 V
DC 0100 V
DC 0090 V

Decimal points
Numerical indication

Measurement unit

− 5 −1. Never apply an external voltage on the input terminal.
2. Do not turn the function switch during measurement.
3. Do not hold the test probe by a section closer to the test
pin side behind the finger guard.
4. When the measured object has capacitance, it may
remain charged by the applied voltage from this
instrument for some time after measurement iscompleted. Be careful.

MΩ(DG34a)MΩ
(DG35a)Rated
voltage range
125 V
250 V
500 V
125 V
250 V
500 V

Display in REL measurement
DC 0020 V
DC 0000 V
DC –0010 V

Max. rating
input value

To perform the MΩ testing again, press the MΩ
START STOP button again.
8 After the measurement is complete, release the pinof the red test probe from the device that wasmeasured.
9 Release the black test probe from the ground line ofthe device that was measured.
10 Be sure to set the function switch to the OFF position
after completing measurement.

400.0 MΩ

40.00 MΩ

400.0 MΩ

⑤
⑥

⑧

⑦

①
⑨

④

A numerical value appears in the display before theMΩ START/STOP button is pressed (before themeasurement voltage is applied). This is not a
malfunction, and the displayed value is irrelevant to
the measurement.
During MΩ testing, the least significant digit of thedisplayed measurement value may sometimes flicker.
During MΩ testing, use the rated voltage that’s as
close as possible to the voltage used by the circuit
being measured.
Example: Use the rated voltage of 125 V for anelectrical circuit of 100 V.

− 10 −

DC/AC 600 V

Voltage andcurrent input
prohibited

Clamp
sensorsection

DC/AC 100 A

250 V AC
(50/60 Hz)
30 sec.

100 A DC/AC

Note: AC voltage and AC current are regulated by rms,
values of sinusoidal wave.

[2] APPLICATION AND FEATURES

3-1 Multimeter

BACKLIGHT
buttonDATA HOLD
buttonCAUTION
Set the batteries with their polarities facing in the correct
directions.

Max. rating input value
DC 600 V
AC 600 V

Measurement range
600 V
600 V

③

②
④

①
⑤

④

ACV
measurement

OutletAccuracy is guaranteed in the case of sine wave.
The frequencies where accuracy is guaranteed in the
ACV measurement are 40 ~ 400 Hz.
Measurement of an inverter power supply circuit may
cause a malfunction.

1. Never apply an input signal exceeding the maximum
rating input value.
2. Be sure to disconnect the test pins from the circuit whenchanging the function.
3. Always keep your fingers behind the finger guards on theprobe when making measurements.

− 8 −Measurement range
DC 100.0 A
AC 100.0 A

1) Applications
DCA: Measures the current consumption of devices
such as an automotive battery.
ACA: Measures the sine wave alternating current with40 ~ 400 Hz frequency of power supply facilities.
2) Measurement procedure
1 Raise the clamp sensor from the rear of the main unit.
2 Set the function switch to the CLAMP A position, andpress the SELECT button to select DCA or ACA.
• DCA: Use the REL function to set the display value
to “000.0 A” before measurement.
• ACA: No adjustment is necessary.
− 11 −

DCV
measurement[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 thedate of 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
shall not apply to disposables batteries, or any product or parts,
which have been subject to one of the following causes:
1. A failure due to improper handling or use that deviatesfrom the instruction manual.
2. A failure due to inadequate repair or modification bypeople other than Sanwa service personnel.
3. A failure due to causes not attributable to this productsuch 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.

CAUTION
1. The panel and the case are not resistant to volatilesolvent and must not be cleaned with thinner or alcohol.
2. The panel and the case are not resistant to heat. Do notplace the instrument near heat-generating devices (suchas a soldering iron).
3. Do not store the instrument, in a place where it may besubjected to vibration or from where it may fall.
4. For storing the instrument, avoid hot, cold or humid
places or places under direct sunlight or wherecondensation is anticipated.
Storage temperature/humidity range: -10 ~ 50 °C, <80 %RH (without condensation)
5. When the instrument is not going to be used forextended time, be sure to remove the batteries.

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 withabove information. An instrument sent to Sanwa / agent /distributor without above information will be returned to thecustomer.

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.
• The minimum retention period of the servicing performanceparts of this instrument is six (6) years after the
discontinuation of production. This period is equal to
the servicing available period. However, the retention
period of a part may be reduced if it becomes
unavailable due to discontinuation of production of
the part manufacturer, etc.
4) Precautions when sending the product to be repaired:
To e n s u r e t h e s a f e t y o f t h e p r o d u c t d u r i n gtransportation, place the product in a box that is larger
than the product 5 times or more in volume and fillcushion materials fully and then clearly mark “Repair
Product Enclosed” on the box surface. The cost ofsending and returning the product shall be borne by thecustomer.

7-3 SANWA web site
http://www.sanwa-meter.co.jp
E-mail: exp_sales@sanwa-meter.co.jp

Note:1) Prior to requesting repair, please check the following:
Capacity of the built-in battery, polarity of installationand discontinuity of the test leads.

3 Replace both of the two batteries in the battery

compartment with new ones.

− 13 −

1) Applications
DCV:Voltage of the DC circuit is measured.
ACV: Sine wave AC voltage, such as lighting voltage, isBatterymeasured.
When notcompartment
coveredcover2) Measurement procedure
1 Set the function switch to the “V” position and selectFinger guards
either DCV or ACV with the AC/DC button.
Test test
probepins(red) to the circuit to
2 Apply the red and black
Test probe (black)measure.
• For measurement of DCV, apply the black test pin to
the negative potential side of the circuit to measure
and the red test pin to the positive potential side.
• For measurement of ACV, apply the red and black
test pins to the circuit to measure.
3 The reading of voltage is shown on the display.
4 After measurement, release the red and black test
pins from the object measured.
5 Be sure to set the function switch to the OFF position
after the measurement is complete.

WARNING

Max. input rating value
DC 100.0 A
AC 100.0 A

Removable
test pin covers− 4 −Function

5-2 Voltage Measurement

Function
DCA
ACA

6-4 Storage

remove it.

Test pins

Note: If there is no display, the batteries may be exhausted.

1. The measurable diameter of a conductor is 10 mm. Do
not force a cable with an outer diameter of more than 10
mm into the clamp sensor section. Also do not apply
external force to the clamp sensor section.
2. Make sure that the conductor to be measured is alignedwith the center of the arrows on the clamp sensor.
Otherwise, a measurement error will result.
3. Do not let this instrument come near a conductor inwhich large current flows or place it on a strong
magnetic field. Such an environment may cause ac u r re n t v a l u e t o b e d i s p l a y e d e v e n t h o u g h n omeasurement is made (an error may occur). Since theclamp sensor of this instrument is a U-shaped opent y p e s e n s o r, i t i s m o re s u s c e p t i b l e t o s u c h a nenvironment compared than a closed-type sensor.

③

compartment cover.

Battery④④

1. The clamp sensor of this instrument is exclusively for low
voltage. Perform the clamp current measurement on aline with 600 V or less.
2. Do not turn the function switch during measurement.
3. During measurement, do not hold the clamp sensor atany point beyond the barrier.
4. To prevent electric shock, be sure to store the test probe
and test lead in their designated storage compartments.

②

2 Slide the battery compartment cover downward to

5-1 Start-Up Inspection

WARNING①④

1 R e m o v e t h e t w o f i x i n g s c re w s f ro m t h e b a t t e r y[5] MEASUREMENT PROCEDURE

5-4 Clamp Current Measurement (CLAMP A)

fixing screws.
• About the batteries when shipped from the factory
The batteries incorporated when shipped from thefactory are monitor batteries, so their service life may be
shorter than that of brand-new batteries. A monitor
battery is a type of battery used to check the functions ofand performance of the product.

6-1 Maintenance and Inspection
1) Appearance• Has the appearance been damaged by falling?
2) Test leads• Is the test lead cord damaged?
• Is the core wire exposed at any place on the test
leads?
If the built-in fuse is blown, current measurement is
impossible. Make sure that the test leads are not cut,referring to the section 5-1.

WARNINGPower
switch/Function
switch/Range switch

Battery
DCV
compartment
cover
fixingACVscrewsWARNING
1. Make sure that the low battery indication does notappear in the display.
2. Never use the instrument if the instrument or test leads
are damaged or broken.
3. Check continuity of test leads.

1. This section is very important for safety. Read andunderstand the following instructions fully and maintainyour instrument properly.
2. The instrument must be calibrated and inspected atleast once a year to maintain its safety and accuracy.

1. To avoid electric shock, do not remove the battery
compartment cover when input is applied to themeasurement terminal and clamp sensor or whenmeasurement is being performed.
2. Be sure to confirm that the function switch is set to“OFF” before replacing the batteries.

REL button

MΩ
START/STOP button

Notes:• This operation cannot be used with the MΩ test function.
• When the function is switched, the REL measurement will
be canceled.

4-7 Low Battery Indication (All Functions)
When the built-in batteries are exhausted and the battery
will appear in the display.
voltage drops below about 2.6 V,
If this icon is lit, replace the batteries with new ones (two at
the same time).

Winding
directionsof test leads

AC/DC button

Clamp
sensor(when stored)

4-6 DATA HOLD Button (DCV · ACV · DCA · ACA Functions)
When this button is pressed, “ ” will be illuminated on thedisplay and the measurement value displayed at that time will
be maintained. Pressing this button again will cancel the
DATA HOLD mode and restore the measurement mode.
Note: This operation cannot be used with the MΩ test function.

4 Place the battery compartment cover and tighten the

WARNING

6-3 Battery Replacement

2-1 Applications
Integrating the measurement functions demanded atelectrical work sites, including MΩ testing, DC/AC clamp
current measurement and DC/AC voltage measurement into asingle unit, this instrument is a compact MΩ tester with clamp
sensor ideal for electrical work.

4-5 BACKLIGHT Button (All Functions)
Press this button to turn on the backlight. The backlight willautomatically turn off after about 10 seconds.

[6] MAINTENANCE

6-2 Calibration
The manufacturer may conduct calibration and inspection.
For more information, please contact your dealer.

[3] NAME OF COMPONENT UNITS

DisplayLINE (Red)400 MΩ (DG34a)
40 MΩ (DG35a)
125 V/250 V/500 V EARTH (Black)

DCA · ACA

DC/AC 600 V

CAUTION③

40.00 MΩ1) Applications: MΩ testing of electrical equipment and circuits.
2) Measurement procedure
1 Set the function switch to the desired measurement
voltage range of MΩ.
2 Short-circuit the test pins on the red and black test
probes, then press the MΩ START/STOP button toconfirm that the test leads are connected (displayed
value: 3 counts or less).
3 Turn off the power of the device you are going tomeasure.
4 Connect the black test probe (provided, with theblack clip connected) to the ground line of the device
you are going to measure.
5 Connect the red test probe to the other end of theline of the device being measured.
6 Press the MΩ START/STOP button. The testing
voltage will be applied between the test leads, andMΩ testing will start. Measurement time is about 30
seconds. Once that time has elapsed, the applicationof the measurement voltage will stop automatically.
Measurement can be stopped at any time bypressing the MΩ START/STOP button again. The
measurement value will be fixed at the value when
the button was pressed.
− 9 −②Power OFF

Measurement
range

Maximum rating Maximum overload
input value
protection input

− 7 −

7

WARNING

Input
terminals

DCV · ACV

− 6 −5-3 MΩ Testing

Function

Function− 3 −[4] DESCRIPTION OF FUNCTIONS

Removable
test pin covers

2-2 Features• Compact, lightweight, portable design that easily fits into a
breast pocket.
• MΩ testing settings can be switched between 3 rated
voltage ranges (500 V/250 V/125 V) with the full-scale valueof 400.0 MΩ (DG34a) or 40.00 MΩ (DG35a).
• Provided with a current clamp sensor that can measure up
to 100 A DC/AC.
• The clamp sensor has a thin U-shaped sensor design thatis 7 mm thick. Also because the inclination angle of thesensor is variable between 0° and 180°, the display sectionof the main unit can be adjusted to an easy-to-view angle.
• Provided with an AC/DC voltage measurement function thatcan be used for checking live line conditions on site.
• The LCD panel incorporates an electroluminescentbacklight for easier operation in dark or low-light
conditions.
• The storable sections of the test leads and test probes use
an elastomeric material that is easy to wind and store.
• Provided with a clip adapter useful for measurement.

1-3 Overload Protections

CAUTION− 1 −Test Leads

3. When MΩ is being tested, the built-in batteries will be
used up rapidly due to the generation of high voltage.
Try to minimize the measurement time.
4. The measurement value may flicker while MΩ is being
tested.
5. When the electroluminescent backlight is turned on,
built-in batteries will be depleted more rapidly. Use it
only when it is necessary.
6. Correct measurement may not be possible in areas
exposed to strong magnetic fields generated byelectrical equipment such as a transformer or large
current path, electromagnetic waves generated bywireless equipment, or areas where electrostatic charges
are generated.
7. This instrument may malfunction or may not be able totake correct measurements with special waveforms suchas those produced by an inverter circuit.

[8] SPECIFICATIONS
8-1 General Specifications
Measurement
Display
Over ranging indication

Double integral method
Max. 3999 countMost significant digit blinks
Automatic selection (– display
Polarity selection
only)
Displayed when built-in
batteries are exhausted (toLow battery indication
2.6 V or less) with
lit orblinking in display
Sampling rate
Approx. 2 times/sec
Response time of MΩ testing Approx. 3 sec. or lessCurrent measurement system CT clamp
Max. clamp conductor diameter 10 mm
AC sensoring
Average sensoring
Operating altitude <2000 m,
Environmental conditionindoor use, pollution degreeⅡ
Accuracy-guaranteed
23 ± 5 °C, <80 %RH
temperature/humidity range(without condensation)
Operating temperature/
5 ~ 40 °C, <80 %RH
humidity range(without condensation)
Storage temperature/–10 ~ 50 °C, <80 %RH
humidity range(without condensation)
Power supply
Two LR03 alkaline batteries
DG34a:
Maximum power consumption— Approx. 40 mW (MΩ testing
500 V range, 100 MΩ load
measurement)
Power consumption
DG35a:
Maximum power consumption— Approx. 100 mW (MΩ
testing 500 V range, 10 MΩ
load measurement)
Approx. 2000 or more,
Number of MΩ testings
successively, in 500 V rangethat can be performed withbrand-new batteries*(DG34a/DG35a)
130 (H ) x 75 (W ) 19.9 (D ) mm
(excluding protrusions),
Dimensions & Massapprox. 160 g (including
batteries)− 14 −

Test lead length
Accessories− 15 −

Approx. 60 cm for both red
and black
Black alligator clip
(CL-DG3a), instruction
manual* Per measurement time: 5 sec. (measurement interval — 25 sec.).
The number varies depending on the batteries used.
8-2 Measurement Range and Accuracy
Accuracy assurance range: 23 ± 5 °C & less than 80 %R.H.
No Condensation
Function
DCV
DC Voltage

ACV
AC Voltage

Range
600 V

600 V

Accuracy

Input impedance±(1.1 %rdg+3dgt)

Approx. 10 MΩ±(1.6 %rdg+7dgt)

125 V

Approx. 10 MΩ

Remarks• Accuracyguaranteed
range: 40 ~400 Hz• Accuracy
in the caseof sin wave±(3.0 %rdg+3dgt)±(3.0 %rdg+3dgt)

See “Common Specificationsfor MΩ Testing” and “DG35a
Specifications for MΩ
Testing”.

250 V

MΩ
40.00 MΩ(DG35a)250 V

DCA
DirectCurrent

100.0 A±(2.0 %rdg+5dgt)

ACA
Alternating 100.0 A
Current±(2.0 %rdg+5dgt)

500 V
125 V

500 V

• Common Specifications for MΩ Testing<No-load measurement voltage>• DG35a Specifications for MΩ Testing<Measurement range>

Rated voltage
125 V/250 V/500 V(DG34a/DG35a)

Measurement
range

No-load voltage
1 ~ 1.2 times that of rated voltage• DG34a Specifications for MΩ Testing<Measurement range>
Measurement
range
400 MΩ

Measurement
extent000.0 MΩ ~399.9 MΩ

Rated
voltage

Measurement
resolution

125 V
250 V
500 V

Shortcircuitcurrent

Rated
current
Approx.
1.25 μA
Approx.
2.5 μA
Approx.
5 μA

40 MΩ

Measurement
extent00.00 MΩ ~39.99 MΩ

Approx.
1.25 μA
Approx.
2.5 μA
Approx.
5 μA

Rated
voltage

0.1 MΩ
125 V
Resistancevalue at which
rated voltage
can bemaintained
Approx.
100 MΩ or
more

250 V
500 V

Shortcircuitcurrent

Rated
current
Approx.
12.5 μA
Approx.
25 μA
Approx.
50 μA

Approx.
12.5 μA
Approx.
25 μA
Approx.
50 μA• Accuracy was measured
after canceling display value
by the REL function.
• Accuracy-guaranteed
range: 40 ~ 400 Hz• Accuracy in the case of sin
wave

Specifications and external appearance of the productdescribed above may be revised for modified without
prior notice.

− 17 −− 18 −− 19 −− 20 −− 21 −− 22 −− 23 −− 24 −

CenterpositionmarkingBarrier③④②

Conductor to
be measured(electrical wire)

Current
direction
Barrier

When the position of this instrument is changed
during DCA measurement, the display may fluctuate
due to geomagnetism.
Because the AC sensoring system of this instrument
is an average value system, an error in the measured
value will occur with waveforms other than sine
waves.
Accuracy is guaranteed in ACA measurement
between 40 ~ 400 Hz.
Measurement of an inverter power supply circuit may
cause a malfunction.
− 12 −

Approx.
10 MΩ ormore

Accuracy calculation
Ex.) Measurement of AC voltage (ACV)
Display value:
0100 V
Range accuracy: ± (1.6 %rdg+7dgt)
Error:± (0100 V x 1.6 %+7dgt) = ±8 V
True value:
0100 V ± 8 V (in a range of 0092 ~0108 V)
Note: 7 dgt corresponds to 7 V.

Clamp Sensor

Current direction
marking

Resistancevalue at which
rated voltage
can bemaintained

Note: Correct measurement may not be possible in areas
exposed to strong magnetic fields generated byelectrical equipment such as a transformer or large
current path, electromagnetic waves generated bywireless equipment, or areas where electrostatic
charges are generated.

Align one line of the conductor to be measured withthe center of the arrows on the clamp sensor.
• DCA: Point the object to be measured in the same
direction as the current direction marking. If it
is pointed in the opposite direction, “–” will be
displayed.
• ACA: The current direction of the object to bemeasured is irrelevant.
4 Read the measurement value in the display.
5 After measurement, remove the conductor from theclamp sensor.
6 Be sure to set the function switch to the OFF position
after completing measurement.

⑤

0.01 MΩrdg: reading dgt: digits

3①

Measurement
resolution<Rated voltage/short-circuit current><Rated voltage/short-circuit current>

See “Common Specificationsfor MΩ Testing” and “DG34a
Specifications for MΩ
Testing”.

MΩ
400.0 MΩ(DG34a)− 16 −