DCL1200R̲E.qxd 13.8.7 9:24 PM ページ1

DCL1200R
DIGITAL CLAMP METER

INSTRUCTION MANUALDRAWING No.DCL1200 04-1307 2040 6010

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DRAWING No.DCL1200 04-1307 2040 6010

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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…………………………………………002【2】APPLICATIONS AND FEATURES
2-1 Applications …………………………………………………003
2-2 Features ……………………………………………………003【3】NAMES AND FUNCTIONS OF COMPONENT UNITS
3-1 Names and Functions of the Meter and Test Leads ……004
3-2 Display ………………………………………………………006【4】DESCRIPTION OF FUNCTIONS AND TERMS
4-1 Auto Power Off ………………………………………………007
4-2 AC Detection Method ………………………………………007
4-3 Crest Factor …………………………………………………008【5】MEASURING PROCEDURE
5-1 Start-up Inspection …………………………………………009
5-2 AC Current (ACA) Measurement …………………………010
5-3 Voltage (V) Measurement, Frequency (Hz) Measurement …011
5-4 Auto Resistance Voltage Determination (AUTO  ·V) …012
5-5 Resistance/Continuity Check (600 ), Diode Test ( ),Capacitance Measurement ( ) …………………………014
5-6 Voltage Detection ( EF) …………………………………016【6】MAINTENANCE
6-1 Maintenance and Inspection ………………………………017
6-2 Calibration and Inspection …………………………………017
6-3 Storage ………………………………………………………017
6-4 Battery Replacement ………………………………………017【7】AFTER-SALE SERVICE
7-1 Warranty and Provision ……………………………………018
7-2 Repair ………………………………………………………019
7-3 SANWA web site ……………………………………………020【8】SPECIFICATIONS
8-1 General Specifications ……………………………………021
8-2 Measuring Range and Accuracy …………………………022

DRAWING No.DCL1200 04-1307 2040 6010

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[1] SAFETY PRECAUTIONS*Before use, read the following safety precautions.
This instruction manual explains how to use your new digital clamp
meter DCL1200R. Before use, please read this 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 amanner not specified in this manual may
cause damage to the protection fcnction of the product.
The instructions given under the heading of “ WARNING” must be
followed to prevent accidental burn and electric shock.

1-1 Explanation of Warning Symbols
The meaning of the symbols used in this manual and attached tothe product is as follows:: Very important instructions for safe use.
• The warning messages are intended to prevent accidents tooperating personnel such as burn and electric shock.
• The caution messages are intended to prevent incorrect
handling and measurement which may damage the product.
: Risk of Electric shock: Direct current (DC): Ground: Resistance: Alternating current (AC): Diode: Buzzer: Capacitance: Double insulation or reinforced insulation
1-2 Warning Messages for Safe Use
WARNING
The following instructions are intended to prevent personal injury such as
burn and electric shock. Be sure to follow them when using the meter:
1. This is a clamp meter for low-voltage circuits. Be sure to use
it for circuits of voltage-to-ground of 600 Vrms or below.
2. Voltages above 70 VDC or 33 Vrms AC (46.7 V peak) arehazardous to human body. Never 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 toequipment (e.g. motors) that generates induced or surge voltage
since it may exceed the maximum allowable overload input.
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15. Never use the meter near equipment which generates strong
electromagnetic waves or is charged.
16. Never use the meter if the meter or test leads are damaged
or broken.
17. Never use the meter with the case or battery lid removed.
18. During measurement, do not hold a place beyond the barrierof the meter or the test pin side of the flange of the test leads.
19. To measure a voltage, first connect the black test lead to thenegative (–) or ground side. When disconnecting, thepositive (+) or non-ground side must be disconnected first.
10. During measurement, do not change the meter to anotherfunction.
11. Before starting measurement, make sure that the function
and range are properly set.
12. Never use the meter when it is wet or with wet hands.
13. Be sure to use the specified type of test leads.
14. Never attempt repair or modification, except for battery
replacement.
15. Inspect the meter at least once a year.
16. This meter is for indoor use only.
1-3 Overload Protection
The maximum rated input value and overload protection havebeen established for the signal input part of each function.
Function

Signal Input Part

Maximum Rated Input Value

Maximum Overload Protection

A

Clamp typecurrent sensor (CT)AC 1200 Arms

AC 2000 Arms

Between + and –terminal

DC · AC 600 Vrms
Voltage and current DC· AC 600 Vrms
input prohibited.

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[2] APPLICATIONS AND FEATURES
2-1 Applications
This is an AC clamp meter designed for the IEC measurement
category CAT. III 600 V and is suitable for measurement of AC
current of electrical equipment and power supply facilities.
2-2 Features• Lighter than conventional clamp meters (30 % reduction from
Sanwa equivalent meters) for easy transportation.
• TRUE RMS (AC coupling)• Large “HOLD” button to ensure holding of the indicated value.
• Safety design in compliance with the IEC.
• Auto resistance/voltage determination function is available.
• Non-contact voltage detection function.
• Fast response continuity buzzer (<100 µs).
• Back light• DMM function provided.
PER IEC61010 OVERVOLTAGE INSTALLATION CATEGORYOVERVOLTAGE CATEGORY II
Equipment of OVERVOLTAGE CATEGORY II is energyconsuming equipment to be supplied from the fixed installation.
Note :
Examples include household, office, and laboratory appliances.
OVERVOLTAGE CATEGORY III
Equipment of OVERVOLTAGE CATEGORY III is equipment in
fixed installations.
Note :
Examples include switches in the fixed installation and someequipment for industrial use with permanent connection to the
fixed installation.
OVERVOLTAGE CATEGORY IV
Equipment of OVERVOLTAGE CATEGORY IV is for use at theorigin of the installation.
Note :
Examples include electricity meters and primary over-current
protection equipment.
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[3] NAMES AND FUNCTIONS OF COMPONENT UNITS
3-1 Names and Functions of the Meter and Test Leads

















Removable test pin covers
When not covered：CAT.Ⅱ 1000 V
When covered：CAT.Ⅲ 600 V

Clamp type current sensor A sensor to clamp a conductor to measure.
(“Clamp sensor”)(CT)
Accuracy guarantee range mark A range to clamp a conductor to measure
which is guaranteed for accuracy. (See 5-2)
Center position markBarrier

A convex part to prevent fingers from touching an
object to measure during measurement of current.

Open/close lever

A lever to open and close the clamp sensor.

Display

An LCD to show measured values.

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When this button is pressed, the functions
change as follows:
V · Hz Position : DCV  ACV  Hz  DCV
Position : 600   600 



SELECT/ BACK LIGHT
buttonBACKLIGHT function :When the button is held pressured for 1
second or longer, the backlight of the LCD will
be turned on. When the button is held pressedfor 1 second or longer again, the backlight will
be turned off. It will also be turned off when
the function switch is set to OFF.
It will not turn off automatically.

Power switch & function
switch– measuring terminal+ measuring terminal

Slide this switch to turn on and off the power
and to select a function.
Insert the black test lead.
Insert the red test lead.

RANGE button(Range hold)

When the RANGE button is pressed, themeter will be set in the manual mode and therange will be fixed. (“AUTO” will disappear
from the display.) In the manual mode, eachtime this button is pressed, the rangechanges. While checking the unit anddecimal point on the display, select the best
range. To return to the auto range, hold thisbutton pressed for 1 second or longer.
(“AUTO” will appear on the display.)Note: During frequency measurement (Hz)and capacitance measurement (0 0), it cannot
be changed to the manual range.

EF button(Voltage detection)

When this button is pressed with the function
switch in positions other than OFF, “E.F” will beshown in the display to activate the non-contact
and contact type voltage detection functions. “–”is shown in the display and buzzer sounds on the
charging circuit side (non-ground side) of the line.

HOLD button (Data hold)

When this button is pressed, the indicated value will
be held. (“H ” will appear on the display.) The
indicated value will not change if the measurement
input fluctuates. When this button is pressed again,
the hold status will be canceled and the meter will
return to the normal measurement mode. (“H ” will
disappear from the display.)
Sensor position for non-contact voltage detection.

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3-2 Display



Numerical value indication.



Unit of measurement.

Lights during voltage measurement of lowinput impedance by AUTO V· function.



Negative sign of numerical data.

Indication of AC measurement.



Indication of DC measurement.

Lights in the auto range mode.

Lights in the data hold mode.
Warning of low battery power: This mark willappear on the display when the built-in battery has
been discharged and its voltage has dropped to
below about 2.4 V. When this mark flickers or
lights, replace the battery with a new one.

Lights during diode test.

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[4] DESCRIPTION OF FUNCTIONS AND TERMS
4-1 Auto Power Off
About 37 minutes after power on, the power will automaticallybe turned off and the display will become blank. However, if anyof the following events occurs, the power will be turned off about
37 minutes after such event:a. Indication other than “OL” at.
b. Indication other than “AUTO” at AUTO  ·V.
c. Indication other than 0 at Hz.
d. Fluctuation more than 10 % at DCV, ACV and A.
e. Operation of the function switch or other button.
To reset the meter, press any button or remove the test leads orthe clamp sensor (CT) from an object to measure and set thefunction switch to OFF.
*In the auto power off mode, a very small amount of current keeps
flowing. Therefore, when measurement has been finished, besure to return the function switch to the OFF position.
*The auto power off function cannot be canceled.
4-2 AC Detection Method
This meter employs the root-mean-square value method andindicates the magnitude of AC as the same amount of work as
DC. Root-mean-square values of sinusoidal waves and suchnon-sinusoidal waves as square waves and chopping waves canbe measured by the true RMS (Root Mean Square) circuit. (Themeasured value of input signals is the measure of actual input
signal power and therefore, more effective values can be obtained
than averaged values.)— 7 —DRAWING No.DCL1200 04-1307 2040 6010

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4-3 Crest Factor
The CR (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 relatively low. With waveforms similar to low duty cycle
pulse trains, the crest factor is high. For the voltages and crest
factors for typical waveforms, see the table below.

Input Waveform

Peak
Vp

Sine Wave
Vp
0

π

2π

Vp

p p

RMS
Vrms

CF
Form Factor
AverageVavg Vp/Vrms Vrms/Vavg

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

π2√2＝1.111

Square Wave
Vp

Vp

0

Triangular Wave
Vp

Vp
0

π

2π

Puls
Vp
0

Vp
τ

Vp

Vp

1

1

√3

2π

π

Vp
Vp
√3
2
＝0.577 Vp ＝0.5 Vp＝1.7322√3＝1.155

τ
2π・Vp

2π
τ

2π
τ

τ
2π・Vp

2π

Voltages of Various Waveforms— 8 —DRAWING No.DCL1200 04-1307 2040 6010

DCL1200R̲E.qxd 13.8.7 9:24 PM ページ9[5] MEASURING PROCEDUREWARNING
1. Do not apply an input signal exceeding the maximum rated
input of each function.
2. During measurement, do not change the function switch.
3. During measurement, do not hold a place beyond the barrier ofthe meter or the test pin side of the flange of the test leads.
4. When measurement has been finished, remove the clamp
sensor (CT) and test leads from the object measured andreturn the function switch to theposition.
5-1 Start-up Inspection
CAUTION
1. Be sure that when the power switch is turned on, the battery
low warning mark () is not flickering or lit. If it is flickeringor lit, replace the battery with a new one. (See 6-4.)
2. Do not use the meter if the meter or test lead is damaged or
broken.
3. Make sure the test leads are not cut.
Always conduct the start-up inspection to ensure safety.
Inspection start
Meter ortest leads
notbroken?

Broken.

Not broken.
1. Set Ω with function
switch and selectbutton.
2. Short red and black
test pins.

Ω appears?
Buzzersounds?

Does not appear.
Does not sound.

Appears/sounds.
No problem. Measurement
can be started.

Request for repair.

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5-2 AC Current (ACA) Measurement
WARNING
Remove the test leads from the measuring terminals to avoid electric shock.
Function

Maximum Rated Input Value

Range

ACA

AC 1200 A

400.0 A, 1200 A

ACA
measurement

centerSW position
Accuracy guaranteed area

Remarks:• This meter is of true RMS sensing (AC coupling). The accuracy
guarantee range is as follows:
Frequency range: 50/60 Hz
Crest factor (CF) range: Full scale CF < 2.0, Half scale CF < 4.0
Accuracy is specified from 5 % to 100 % of ranges.
• If vibration noise occurs in the clamp sensor (CT) part whenmeasuring a large current above 100 A, it is not a failure.
• For accuracy when the indicated value is 10 % of the range or less, 8
dgt is added to the accuracy shown in 8-2.
• An induction error below 0.06 A/A may occur due to influence of
current flowing in adjacent conductors.
• A guide for a range of conductor positions for accuracy guarantee
When an object is measured at the center of the clamp sensor (CT), thespecified accuracy (see 8-2) can be obtained. In other places ofconductors to be measured, the accuracy is as follows:
A area: 4 % is added to the specified accuracy.
B area: 1 % is added to the specified accuracy.
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5-3 Voltage (V) Measurement, Frequency (Hz) Measurement
Function

Maximum Rated Input Value

Range

ACV, DCV

600 V

6.000 V(6000 mV), 60.00 V, 600.0 V

FunctionHz

Voltage range Sensitivity (Sinusoidal wave RMS) Frequency Measurement Range

6.000 V
60.00 V
600.0 V

10 Hz  30 kHz
10 Hz  1 kHz
10 Hz  1 kHz

Approx. 4 V
Approx 30 V
Approx 60 V

DCV
measurement

ACV
measurementHzmeasurement

SW position

Remarks:
 Voltage (ACV & DCV) function• The input resistance is 5 M• The indication may be fluctuated at 6.000 V (6000 mV) range when open circuit.
• 5 counts might be displayed even it short-circuits.
• ”–” signs appear if “+” and “–” polarity are measured reversing at the DCV
measurement.
 ACV function (AC coupling, True RMS)
• The accuracy guarantee range: In between 5  100 % of measuring range• Crest Factor (CF) range: Full scale CF < 1.6
Half scale CF < 3.3• Frequency range: 50 – 500 Hz
 Frequency measurement• Measurement sequence(Max. count : 9999)
Apply ACV at first, and then shift to Hz function in order to select reasonable
input sensitivity automatically.
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5-4 Auto Resistance Voltage Determination (AUTO  ·V)
WARNING
Because the initial input resistance is as low as 2.1 k, a verylarge amount of current will flow. Never use the meter formeasuring circuits or devices having a small current capacity. For
measurement of voltages that requires high input resistance, use
the V function of V.Hz (input impedance 5 M).
Function

Maximum Rated Input Value

Range


DCV
ACV

6 M
DC 600 V
AC 600 V

6.000 k, 60.00 k, 600.0 k, 6.000 M
6.000 V（6000 mV）, 60.00 V, 600.0 V
6.000 V（6000 mV）, 60.00 V, 600.0 V• This function enables measurement by automatically determining whether the
input is resistance () or voltage (V) and whether the voltage is ACV or DCV.
• When a voltage is indicated when measuring resistance, you can know a
voltage is present.
• Because of low input resistance (Low-Z), voltage measurement is unlikely tobe affected by an induced voltage in adjacent cables, and therefore, themeter is useful for measuring voltages in areas where cables are congested.
Resistance () and voltage (V) automatic determination
 measurement
Resistance indication
Resistance value detection

DCV measurement
DCV indication+1.5 V or above–1.0 V or below

ACV measurement
ACV indication
2 V or above

Resistor

Buzzer sound at
0.025 k or less.

SW position— 12 —DRAWING No.DCL1200 04-1307 2040 6010

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Remarks:• When there is no input, “AUTO” will be shown. When the RANGE
button is pressed, the manual  function will be set.
• When there is no voltage input, a resistance value up to 6 M will
be shown. When the RANGE button is pressed in this state, themanual range of the  function will be set (“AUT” will disappear).
If a voltage is applied, the meter will not change to the voltage
measuring function.
• If the RANGE button is pressed in the voltage measuring function,
the manual range of either the DCV or ACV function will be set(“AUT” will disappear). If a resistor is connected in this state, themeter will not change to the resistance measuring function.
• The buzzer sounds when the resistance value is below about
0.025 k (25 ).
• When the DC voltage is above +1.5 V or below -1 V, the DCV
value is automatically indicated. In case of negative value, “–”polarity is displayed. (“ 000” & 0000 will appear.)• When the AC voltage is above 2 V, the ACV value is automaticallyindicated (“000” & 00000will appear).
• Either a DCV or ACV value whichever is higher is indicated.
• When there is an input above 600 V, “OL” is indicated and thebuzzer sounds. Immediately remove the test leads from theobject being measured and stop measurement.
• Measurement of voltages in circuits having high internal
impedance shows a lower value than the actual value due tovoltage drop.
• When the RANGE button is pressed once, the function (, DCV
or ACV) being used and the range will be fixed and “AUTO” will
disappear. When the button is pressed again in this state, therange can be changed. When the button is held pressed for 1
second or longer, “AUTO” will appear again and the meter will
return to the AUTO ·V mode.
• To measure resistance after measuring 50 V or over, wait 2
minutes before starting measurement.

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5-5 Resistance/Continuity Check (600
Capacitance Measurement ( )), Diode Test (),

WARNING
Never apply a voltage to the input terminals.
5-5-1 Resistance measurement / Continuity check (600Function
Resistance measurement
Continuity check

Maximum Rated Input Value

Range

600 

600.0 )Remarks:• Buzzer response speed: <100 µs• Buzzer sound range: 0   155  (±145 )• Open circuit voltage: Approx. 0.4 VDC• For less than 20 % of the range (0.0   120.0 ), 40 dgt is
added to the accuracy (see 8-2).
5-5-2 Diode test ()
Open circuit voltage: Approx. 1.6 VDC
Measuring current: 0.4 mA (typical)
Diodes under voltage cannot be tested.
5-5-3 Capacitance measurement ()

CAUTION
1.Be sure to remove electric charge in the capacitor before
measurement.
2.Because this meter applies a current to the capacitor tomeasure, it is not suitable for measurement of electrolytic
capacitors having a large leak current as a large error will occur.
3.For capacitors having large capacitance, measurement takes alonger time.
0100 µF: About 10 seconds
0500 µF: About 30 seconds
1000 µF: About 50 seconds
4.Please note that the measuring value is unexpected when measuring
a capacitor which is punctured or with bad is olation capability.
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Function

Capacitance(

Maximum Rated Input Value

Range

2000 µF

100.0 nF, 1000 nF, 10.00 µF,
100.0 µF, 2000 µF)

Remarks:• 50.00 nF or below is out of the accuracy guarantee range.
The accuracy drops to ±(12 % rdg + 8 dgt) when the power supply
voltage is in a range of 2.8 V and about 2.4 V (out of accuracy
guarantee range) at which the battery low mark will light.
Diode test

Good: Forward
voltage drop Good: OL shown
Bad: 0.000 V shown Bad: other indication

forward biase

reverse biase

SW position
Resistance measurement /Continuity check

Capacitancemeasurement

Resistance

Capacitor

Each time the SELECT button is pressed, the functions change as
indicated by  in the figure.
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5-6 Voltage Detection (EF)

SensorNon-ground (hot) side
Non-ground(hot) side

SW position other than OFF.

Non-contact typeContact type

Remarks:• In any function switch position other than OFF, when the EF
button is pressed, “E.F.” will be shown in the display and voltage
detection can be started.
• Voltage Detection measurement.
Non-contact type: Bring
marked part of clamp sensor into contact withan object to be measured.
contact type:
Bring a test pin, which is connected to “+” measurement
terminal, into contact with an object to be measured.
• On the charging side (non-ground side), the following “–” is shownand the buzzer sounds. On the ground side, “E.F.” remains
shown and the buzzer does not sound.
• If the ( ) mark part of the clamp sensor touches an enclosure ofungrounded equipment, “–” may be shown and the buzzer may
sound.
• Input sensitivity : Approx. 20 V or over— 16 —DRAWING No.DCL1200 04-1307 2040 6010

DCL1200R̲E.qxd 13.8.7 9:24 PM ページ17[6] MAINTENANCEWARNING
1.The following instructions are very important for safety. Readthis 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 or othercause?
2) Test leads: Are the test leads not damaged, or is the core wire
not exposed from any part or broken?
If any of the above problems exists, stop using the meter andrequest for repair.
6-2 Calibration and Inspection
For more information, please contact your dealer or Sanwa agent.
6-3 Storage
CAUTION
1.The panel and case are not resistant to volatile solvent andmust not 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 from 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 the battery.
6-4 Battery Replacement
Battery when the meter is shipped:
A battery for monitoring has been installed prior to shipment fromthe factory. It may be discharged before the expiration of thedescribed battery life.
* The battery for monitoring is a battery used to check the functions
and performance of the product.
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WARNING
If the rear case is removed with an input being applied to themeasuring terminals, you may suffer electric shock. Before
starting replacement, always make sure no input is being applied
and the function switch is OFF.

(1) Remove the battery lid screws(2 pieces) with a screwdriver.
(2) Take out the battery andreplace it with a new one.
Battery: R03 (AAA)
1.5 V x 2 pieces(3) Attach the battery lid andsecure it with screws.

[7] AFTER-SALE SERVICE
7-1 Warranty and Provision
Sanwa offers comprehensive warranty services to its end-users
and to its product resellers. Under Sanwa's general warranty
policy, each instrument is warranted to be free from defects inworkmanship or material under normal use for the period of one(1) year from the date of purchase.
This warranty policy is valid within the country of purchase only,
and applied only to the product purchased from Sanwa authorized
agent or distributor.
Sanwa reserves the right to inspect all warranty claims todetermine the extent to which the warranty policy shall apply. This
warranty shall not apply to disposables batteries, or any productor parts, which have been subject to one of the following causes:— 18 —DRAWING No.DCL1200 04-1307 2040 6010

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1. A failure due to improper handling or use that deviates fromthe instruction manual.
2. A failure due to inadequate repair or modification by people
other than 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.
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:
In some cases, repair and transportation cost may become
higher than the price of the product. Please contact Sanwa
authorized agent / service provider in advance.
The minimum retention period of service functional parts is 6
years after the discontinuation of manufacture. This retention
period is the repair warranty period. Please note, however, if
such functional parts become unavailable for reasons of— 19 —DRAWING No.DCL1200 04-1307 2040 6010

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discontinuation of manufacture, etc., the retention period may
become shorter accordingly.
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 product 5 times ormore in volume and fill cushion materials fully and then clearlymark “Repair Product Enclosed” on the box surface. The costof sending 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— 20 —DRAWING No.DCL1200 04-1307 2040 6010

DCL1200R̲E.qxd 13.8.7 9:24 PM ページ21[8] SPECIFICATIONS
8-1 General Specifications∆–∑ method
Operation method
True RMS AC coupling
AC Sensing
6000 counts
LCD
5 times/sec nominal
Sampling rate
Auto and Manual
Range selection“OL” shown in numerical part.
Over-range indication
Polarity indication automatic selection “–” indicated only when negative input.
Low battery indication “” lights or flickers at about 2.4 V or below.
Environmental condition Altitude 2000 m or below, pollution degree II.
Operating temperature / 5 °C to 40 °C and maximum relative humidity 80 %for temperature up to 31 °C decreasing linearly tohumidity
50 % relative humidity at 40 °C (No condensation)
Storage temperature / humidity -20 °C  60 °C, 70 %R.H or below (with battery removed).
R03 1.5 V x 2 pieces
Power supply
2.8 mA at DCV (typical)
Power consumption
Approx. 90 hours at DCV (Disable Auto power off)
Battery life
IEC61010-1, IEC61010-2-032, IEC61010-2-033
Safety standards
CAT.III 600 V
IEC61010-031
IEC61326
EMC
In an RF field of 3 V/m:
Total Accuracy = Specified Accuracy + 45 digits
Performance above 3 V/m is not specified
Clamp sensor (CT) clamp size Max. 42 mm
238(L) X 95(W) X 45(H) mm
Dimensions
Approx. 290 g (battery included)
Mass
About 3~7 min. after power on.
Auto power off
Battery (built-in), Test leads (TL-23a), Carrying
Accessories
case (C-DCL1000), Instruction manual— 21 —DRAWING No.DCL1200 04-1307 2040 6010

DCL1200R̲E.qxd 13.8.7 9:24 PM ページ22

8-2 Measuring Range and Accuracy
Temperature: 23±5 °C, humidity: 75 % RH max., built-in battery voltage 2.4 V or above.
rdg (reading): Read value, dgt (digit): Number of counts of last digit
ACA (True RMS AC coupling)
Range
400.0 A
1200 A

Accuracy±(1.7 %rdg+5dgt)

Remarks:• This meter is of True RMS sensing.
Frequency range: 50/60 Hz (Sinusoidal wave AC)
Crest Factor (CF): Full scale CF < 2.0, Half scale CF < 4.0
Accuracy is specified from 5 % to 100 % of ranges.
• Accuracy is specified when an object is measured at the center ofthe clamp sensor (CT),• A guide for a range of conductor positions for accuracy guarantee
In other places of conductors to be measured,
the accuracy is as follows:
A zone: 4 % is added to the specified accuracy.
B zone: 1 % is added to the specified accuracy.
• For accuracy when the indicated value is 10
center% of the range or less, 8 dgt is added to theaccuracy.
• An induction error below 0.06 A/A may occur
due to influence of current flowing in adjacentconductors.
DCV
Range
6.000 V

Accuracy±(0.7 %rdg+3dgt)

Input Impedance

60.00 V
600.0 V±(1.2 %rdg+5dgt)±(2.2 %rdg+5dgt)

Approx. 5 MRemarks— 22 —DRAWING No.DCL1200 04-1307 2040 6010

DCL1200R̲E.qxd 13.8.7 9:24 PM ページ23

ACV (True RMS AC coupling)
Range
6.000 V
60.00 V
600.0 V

Frequency range
50 Hz/60 Hz
50 Hz500 Hz
50 Hz/60 Hz
50 Hz500 Hz
50 Hz/60 Hz
50 Hz500 Hz

Accuracy±(1.7 %rdg+5dgt)±(2.2 %rdg+5dgt)±(1.7 %rdg+5dgt)±(2.2 %rdg+5dgt)±(2.2 %rdg+5dgt)±(2.7 %rdg+5dgt)

Input ImpedanceApprox. 5 MRemarks:• Frequency range: 50 Hz~500 Hz• The accuracy guarantee range: In between 5  100 % of measuring range• Crest Factor (CF): Full scale CF < 1.6, Half scale CF < 3.3
Frequency Hz
Voltage Range
6.000 V
60.00 V
600.0 VSensitivity (Sine wave)
4V
30 V
60 V

Frequency Measurement Range
10 Hz 30 kHz
10 Hz  1 kHz
10 Hz  1 kHz

Accuracy: ±(0.6 %rdg+4dgt)
AUTO  · V
Range
6.000 k60.00 k
600.0 k
6.000 MDC 6.000 V
DC 60.00 V
DC 600.0 V
AC 6.000 V
AC 60.00 V
AC 600.0 V

Accuracy±(1.4 %rdg+6dgt)

Frequency range±(1.2 %rdg+4dgt)±(2.2 %rdg+4dgt)±(0.7 %rdg+3dgt)±(1.2 %rdg+5dgt)±(2.2 %rdg+5dgt)±(1.7 %rdg+5dgt)±(2.2 %rdg+5dgt)±(1.7 %rdg+5dgt)±(2.2 %rdg+5dgt)±(2.2 %rdg+5dgt)±(2.7 %rdg+5dgt)

50 Hz/60 Hz
50 Hz500 Hz
50 Hz/60 Hz
50 Hz500 Hz
50 Hz/60 Hz
50 Hz500 Hz

Remarks:• The accuracy guarantee range of ACV: In between 5  100 % of
measuring range.
— 23 —DRAWING No.DCL1200 04-1307 2040 6010

DCL1200R̲E.qxd 13.8.7 9:24 PM ページ24• The initial internal resistance is about 2.1 k and at an input
above 50 V, the internal resistance increases rapidly.
A guide for input voltages and internal resistance:
100 V: 15 k
300 V: 100 k
600 V: 210 k
• Input is detected in the order of , DCV and ACV.
• DCV threshold: 1.5 VDC or above and -1.0 VDC or below.
• ACV threshold: 2 VAC (50/60 Hz) or above.
• Either a DCV or ACV value whichever is higher is shown.
• Crest factor (CF): Full scale CF < 1.6, Half scale CF < 3.3
To measure resistance after measuring 50 V or over, wait 2 minutes
before starting measurement.
Resistance / Continuity check (600)
Range

Accuracy600.0 ±(2.2 %rdg+8dgt)

Remarks• Buzzer response speed: < 100 µs• Buzzer sound range: 0   155  (±145  )• Open circuit voltage: Approx. 0.4 VDC• 40 dgt is added to the accuracy for 20 % orless of the range.

Diode test ( )Open circuit voltage: Approx. 1.6 VDC
Test current: 0.4 mA (typical)
Capacitance measurement (Range
100.0 nF
1000 nF
10.00 µF
100.0 µF

2000 µF)

Accuracy

Remarks±(3.7 %rdg+5dgt)• Auto range only.
• 50.00 nF or below out of accuracy guarantee
range.
• Accuracy for measurement of film capacitors
or similar devices having little leak current.
• The accuracy drops to ±(12% rdg + 8 dgt) when
the power supply voltage is in a range of 2.8 V
and about 2.4 V (out of accuracy guarantee
range) at which the battery low mark will light.

— 24 —DRAWING No.DCL1200 04-1307 2040 6010

DCL1200R̲E.qxd 13.8.7 9:24 PM ページ25

Voltage detection EF
Remarks:• Frequency: 50 Hz/60 Hz• Detection sensor: ( ) mark part of clamp sensor (CT)• Voltage detection with test lead connected to + measuringterminal possible.
• Input sensitivity : Approx. 20 V or over— 25 —DRAWING No.DCL1200 04-1307 2040 6010

DCL1200R̲J̲表紙.qxd 13.8.7 9:39 PM ページ2

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.

04-1307 2040 6010

DRAWING No.DCL1200 04-1307 2040 6010