Sanwa DCM400AD Manual

Sanwa Måleudstyr DCM400AD

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DCM400AD

DIGITAL CLAMP METER

SANWA ELECTRIC

INSTRUMENT CO.,LTD.

Dempa Bldg,Sotokanda2-Chome

Chiyoda-Ku,Tokyo,Japan

General Specification

Digital Display: 3 3/4 digits LCD display with maximum reading 3999

Analog Display: 42 segments fast analog bar display

Symbol and Scale range:

adjust automatically according range and input signal

Polarity:

When negative signal in apply to the meter, will show.

Over Load:

When the signal larger than the maximum will be show

Sample Rate: 2 times/sec for digital data

20 times/sec for analog bar

Low Power Indication:

When the battery is under the proper operation range, will appear on the

LCD display.

Power Source: LR03 or AAA 1.5V battery 2.x

Auto Power Off:

If there is no key or dial operation for 30 minutes, the meter will power itself

off to save battery consumption.

Battery Life: Approx. 50hr (Alkaline Battery)

Power Consumption: 50mW

Clamp opening size: 25mm

Operating temperature: 0 C 40 C,<80% RH, No condensation˚~ ˚

Storage temperature: -10 C 60 C,<70% RH, No condensation˚~ ˚

Approvals: IEC61010-2-32 300V CAT.III 600V CAT.II

Environmental conditions:

Altitude up to 2000 meters, indoor use, pollution degree2

Withstand voltage: AC3.7kV (50/60Hz) for a minute.

Dimension (L x x W H) :193 50 x x 28mm

Weight: 230g

Accessory:

Instruction Manual, Carrying case (C-DCM400), Test lead (TL-23a)

Specification

The accuracy specification is defined as ±( …%reading+…count )

At 23±5 C, ˚≦80%RH

Accuracy

± (1%rdg.+2dgt.)

Accuracy

50Hz〜500Hz

± (1.5%rdg.+5dgt.)

Overload

Protection

660Vrms

Overload

Protection

660Vrms

Input

Impedance

10MΩ

Input

Impedance

10MΩ

DCV (Auto range, Manual range)

Range

400V

600V

Range

400V

600V

Resolution

0.1V

Resolution

0.1V

ACV (Auto range, Manual range)

Resolution

0.01A

0.1A

Accuracy

Overload

Protection

600Arms

Range

40A

400A

ACA (Auto range, Manual range)

± (2%rdg.+10dgt.)

Band Width

50Hz〜500Hz

Range

400Ω

Resolution

0.1Ω

Accuracy

± (1%rdg.+2dgt.)

MAX Test

Voltage

1.5VDC

Overload

Protection

600Vrms

Overload

Protection

600Vrms

Ohm (Ω)

Range

MAX Test

Voltage

1.5VDC

Continuity ( )

Active Region

<40

Electrical Specification

⑦ Positive input terminal

⑧ Data hold & Manual range button

⑨ Zero button

⑩ Battery lid

⑪ Rear case

① Current Sensing Clamp

② Barrier

③ Jaw-opening handle

④ Main function selector

⑤ LCD display

⑥ COM input terminal

Instrument Familiarization

DCA (Auto range, Manual range)

Overload

Protection

600Arms

Accuracy

± (2.5%rdg.+10dgt.)

Resolution

0.01A

0.1A

Range

40A

400A

Symbol Definition

Zero Button

Press Zero button to enter the Zero mode, " " annunciate turn on and Zero

the display and the reading is stored as reference value for subsequent

measurement.

Press it again, the " " annunciate blinking and memorized reference value

will display.

Press and hold down zero button for 2 second to exit the zero mode.

When the tester is under zero mode the auto range function will be disabled.

Data Hold & Manual Range Button

The user may hold the present reading and keep it on the display by pressing

the "Hold" button.

When the hold data is no longer needed, one may release the data-hold

operation by press "Hold" button again.

One may hold present reading by press the hold button instantaneously. One

may also change the measuring scale range by press and hold the RANGE

button. When the decimal point changes, the user should release the button and

scale range will stay at the setting range. If the user press and hold the button

for more than 2 seconds, the tester will be in auto range mode again.

Disable Auto power off

Press and hold "ZERO" button and then the power on the meter.

Button Instruction

Switch the main function selector to range.

Open the clamp by pressing the jaw-opening handle and insert the cable to be

measured into the jaw.

Close the clamp and get the reading from the LCD display.

Note:

Before this measurement, disconnect the test lead with the meter for safety.

In some occasion that the reading is hard to read, push the HOLD button and

read the result later.

Measuring Instruction

AC Current Measurement

Switch the main function selector to range.

Press ZERO button to enter the zero reading.

Before measuring current larger than 40A, adjust the scale to 400A range by

press the range button and press ZERO button again.

Open the clamp by pressing the jaw-opening handle and insert the cable to be

measured into the jaw.

Close the clamp and get the reading from the LCD display.

Note:

Before this measurement, disconnect the test lead with the meter for safety.

In some occasion that the reading is hard to read, push the HOLD button and

read the result later.

DC Current Measurement

CORRECT

INCORRECT

Switch the main function selector to range.

Connect red test lead to “+” terminal and black one to the “ COM “ terminal.

Measure the voltage by touch the test lead tips to the test circuit where the

value of voltage is needed.

Read the result from the LCD display.

ACV Measurement

Switch the main function selector to range.

Connect red test lead to “+” terminal and black one to the “ COM “ terminal.

Measure the voltage by touch the test lead tips to the test circuit where the

value of voltage is needed.

Read the result from the LCD display.

DCV Measurement

Maximum Input Voltage is 600V AC/DC. Do not attempt to take any

voltage measurement that may exceed to avoid Electrical shock hazard

and/or damage to this instrument.

Maximum Input Voltage is 600V AC/DC. Do not attempt to take any

voltage measurement that may exceed to avoid Electrical shock hazard

and/or damage to this instrument.

Switch the main function to range.

Connect red test lead to “+” terminal and black one to the “ COM ” terminal.

Connect tip of the test leads to the points where the value of the resistance is

needed.

Read the result from the LCD display.

Note:

When take resistance value from a circuit system, make sure the power is cut

off and all capacitors need to be discharged.

Resistance Measurement

Switch the main function to range.

Connect red test lead to “+” terminal and black one to the “ COM ” terminal.

Connect tip of the test leads to the points where the conduction condition

needed.

If the resistance is under 40 , the beeper will sound continuously.Ω

Continuity Test

Short circuit Open circuit

Beeper

Battery Changing

When the battery voltage drop below proper operation range the symbol

will appear on the LCD display and the battery need to changed.

Before changing the battery, switch the main dial to “OFF ”and disconnect

test leads. Open the battery lid by a screwdriver.

Replace the old batteries with two LR03 or AAA size batteries.

Close the battery lid and fasten the screw.

To prevent electrical hazard or shock, turn off clamp meter and disconnect

test leads before removing battery lid.

Never uses the meter before the battery lid is closed.

This product has been designed and manufactured in accordance with the safety

standards applicable to IEC 61010-2-32 Electronic Measuring Equipment and

has passed the inspection. Using this product in ways not specified in this manual

may damage its protection function. The instructions given under the heading of

“WARNING” and “CAUTION” must be followed to prevent accidents.

CAUTION : Intended to prevent personal injury such as burn and

electric shock and other serious accidents.

WARNING : Intended to prevent misuse that could result in personal

injury and damage to equipment including this instrument.

Safety Information -

Before use, read the manual

1. This is a clamp meter for low-voltage circuits. Never use it on the

power line that exceeds 600VAC to ground. The measurement

classification category of this instrument is 300 V CAT. III, 600V

CAT. II.

2. Use the meter only as described in this manual.

3. Do not apply more than the rated maximum input (400VAC).

4. Pay special attention to voltages above 33VAC (46.7 Vpeak) and

70VDC that are hazardous to the human body.

5. Do not use the meter if it is damaged or broken.

6. Do not use the meter the battery lid or rear case removed.

7. During measurement, keep your fingers behind the barrier (finger

guard).

8. When measuring un-insulated counductors, be careful not to touch

them. Otherwise you will suffer electric shock.

9. Do not use the meter near flammable gases or solvents.

10. Do not use the meter with wet hands or in a damp environment.

11. Do not disassemble or modify the meter nor use components not

specified by the manufacturer.

12. Inspect the meter at least once a year.

13. The meter is for indoor use.

WARNING

①

⑧

⑨

⑦

⑩

②

③

④

⑤

⑥

WARNING WARNING

WARNINGWARNING

1. Maintenance and Inspection

1) Appearance: Is the meter not damaged due to falling or other cause?

2) Test leads:

• Are the core wires not 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 and request for

repair.

2. Inspection

Inspect the meter at least once a year.

3. Storage

4. Battery when the meter is shipped:

A battery for monitoring has been installed prior to shipment from the

factory. It may be discharged before the expiration of the described battery

life.

*The battery for monitoring is a battery used to check the functions and

performance of the product.

Maintenance

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.

1. The panel and case are not resistant to volatile solvent and must not

be cleaned with thinner or alcohol.

2. The panel and case are not resistant to heat. Do not place the meter

near heat-generating devices.

3. Do not store the meter in a place where it may be subjected to

vibration 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 the batteries.

CAUTION

⑪

Low battery indication

Auto range indication

Manual range indication

Hold Data indication

Continuity function indication

Voltage measurement indication

Current measurement indication

Alternative source indication

Direct source indication

Resistance

Polarity indication

Analog bar graph indication

Produkt Specifikationer

Mærke:	Sanwa
Kategori:	Måleudstyr
Model:	DCM400AD

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