Sanwa DCM400 Manual

Sanwa Måleudstyr DCM400

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SANWA ELECTRIC

INSTRUMENT CO.,LTD.

Dempa Bldg,Sotokanda2-Chome

Chiyoda-Ku,Tokyo,Japan

DCM400

DIGITAL CLAMP METER

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: R03 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. 150 hrs

Power Consumption: 7.4mW

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

degree 2

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

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

Weight: 230g

Accessory:

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

Specification

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.

WARNING : Intended to prevent personal injury such as burn and

electric shock and other serious accidents.

CAUTION : 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 300V 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.

4. Pay special attention to voltages above 33VAC (46.7Vpeak) 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 with the battery lid or rear case removed.

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

guard).

8. When measuring un-insulated conductors, 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

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

1MΩ

Input

Impedance

1MΩ

DCV (Autorange)

Range

400V

600V

Range

400V

600V

Resolution

0.1V

Resolution

0.1V

ACV (Autorange)

Resolution

0.01A

0.1A

Accuracy Overload

Protection

600Arms

Range

40A

400A

ACA (Autorange)

Resolution

1Hz

10Hz

1Hz

10Hz

100Hz

1kHz

Accuracy

±(0.1%rdg.+1dgt.)

Function

Current

Frequency

Voltage

Frequency

Overload

Protection

600Arms

600Vrms

Sensitivity

2Arms

3Vrms

5Vrms

Range

20Hz 4kHz〜

10kHz

4kHz

40kHz

400kHz

1MHz

Frequency (Hz) (Autorange)

50Hz 60Hz〜

±(1.9%rdg.+5dgt.)

60Hz 500Hz〜

±(2.5%rdg.+5dgt.)

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 Ω

Electrical Specification

⑥ COM input terminal

⑦ Positive input terminal

⑧ Data hold button

⑨ Battery lid

⑩ Rear case

① Current Sensing Clamp

② Barrier

③ Jaw-opening handle

④ Main fuction selector

⑤ LCD display

Instrument Familiarization

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 panel.

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.

CORRECT

INCORRECT

Measuring Instruction

AC Current 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

Beeper

Short circuit Open circuit

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 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.

WARNING

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

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.

WARNING

Switch the main function to “ Hz ” 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 frequency of the voltage

signal is needed.

Read the Result from the LCD display.

Frequency measurement from the terminals

Switch the main function selector to “ Hz ” range.

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

be measured into the clamp.

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

Note:

When doing frequency measurement, user should either use the terminal signal

or clamp signal but not both. If both sources are applied an error will occur.

Frequency measurement with the clamp

Battery Changing

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.

WARNING

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

Symbol Definition

When the battery voltage drop below proper operation range the symbol will

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

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

test leads. Open the battery lid by a screwdriver.

3. Replace the old batteries with two R03 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.

WARNING

⑩

Low battery indication

Auto 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

Frequency Measurement indication

Produkt Specifikationer

Mærke:	Sanwa
Kategori:	Måleudstyr
Model:	DCM400

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