Clarke CDM 85 Bedienungsanleitung

USER INSTRUCTIONS

ORIGINAL INSTRUCTIONS DL0421 - Rev 2

OPEN JAW DIGITAL MULTIMETER

MODEL NO: CDM85

PART NO: 8133826

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

INTRODUCTION

Thank you for purchasing this CLARKE CDNM85 Digital

Multimeter. Before attempting to use this product, please

read these instructions carefully. In doing so you will ensure

your safety and you can look forward to your purchase

giving you long and satisfactory service.

GUARANTEE

This product is guaranteed against faulty manufacture for

a period of 12 months from the date of purchase. Please

keep your receipt which will be required as proof of

purchase.

This guarantee is invalid if the product is found to have

been abused or tampered with in any way, or not used for

its intended purpose. Faulty goods should be returned to

their place of purchase, no product can be returned to us

without prior permission.

This guarantee does not effect your statutory rights.

SAFETY INFORMATION

This clamp meter has been designed according to IEC-

61010 concerning electronic measuring instruments with a

measurement category (CAT II 600 V).

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

ELECTRICAL SYMBOLS

(Alternating

Current)

DC (Direct

Current)

Dangerous

voltage may

be present

Important

safety

information.

Refer to the

manual

Earth Ground Double

Insulated

Diode

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

OVERVIEW

Description Description

1Clamp Jaw: Used to

clamp the conductor

to be measured. to get

more accurate

reading, the

conductor should be in

the centre of the jaws.

5“V Q -0+” Jack: Plug0in

jack for the red

(Positive) test lead.

2Trigger: Used to open

and close the jaws for

AC current

measurement.

6Rotary Switch: Used to

select desirable

function and range as

well as to turn the

meter on/off.

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

SPECIFICATIONS

3Display: 3 1/2” LCD,

with a max. reading

1999.

7“Hold” Button: After

pressing the button,

the present reading is

held on the display,

meanwhile “HOLD” is

displayed on the LCD

as an indicator. To exit,

press the button again.

4“COM” Jack: Plug-in

jack for the black

(Negative) test lead.

Display 3 1/2” Digit LCD

Overrange Indication “1” Shown on LCD

Sampling Rate Approximate 3 Times per

Second

Jaw Opening Capability 27mm

Max. Measurable

Conductor

25mm

Battery 3V, CR2032, 3 Batteries

Operation Temperature 0°C -40°C <75%RH

Storage Temperature -20°C -60 °C, <85%RH

Dimensions 151mm x 65mm x 34mm

Weight 127g (including Batteries)

Description Description

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

WARNING

To avoid possible electric shock or personal injury, follow

these guidelines:

• Do not use the meter if it is damaged. Before you

use the meter, inspect the case. Pay particular

attention to the insulation surrounding the

connectors.

• Inspect the test leads for damaged insulation or

exposed metal. Check the test leads for continuity.

Replace damaged test leads before you use the

meter.

• Do not use the meter if it operates abnormally.

Protection may be impaired. When in doubt, have

the meter serviced.

• Do not operate the meter around explosive gas,

vapor, or dust.

• Do not apply more than the rated voltage, as

marked on the meter, between terminals or

between any terminal and earth ground.

• Before use, verify the meter’s operation by

measuring a known voltage.

• When servicing the meter, use only specified

replacement parts.

• Use with caution when working above 30V ac rms,

42V peak, or 60V dc. Such voltages pose a shock

hazard.

• When using the probes, keep your fingers behind

the finger guards on the probes.

• Connect the common test lead before you

connect the live test lead. When you disconnect

test leads, disconnect the live test lead first.

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

• Remove the test leads from the meter before you

open the battery door or measure AC current.

• Do not operate the meter with the battery door or

portions of the case removed or loosened.

• To avoid false readings, which could lead to

possible electric shock or personal injury, replace

the batteries as soon as the low battery indicator

appears.

• Before using the clamp jaws to clamp the

conductor to be measured, make sure that all the

test leads have been removed from the clamp

meter.

• Remove test leads from the meter and remove the

clamp jaw from the clamped conductor before

opening the meter case or the battery door.

• Remaining endangerment: When an input terminal

is connected to dangerous live potential it is to be

noted that this potential at all other terminals can

occur!

• CATII - Measurement Category II is for

measurements performed on circuits directly

connected to low voltage installation. (Examples

are measurements on household appliances,

portable tools and similar equipment.) Do not use

the meter for measurements within Measurement

Categories III and IV.

CAUTION

To avoid possible damage to the meter or to the

equipment under test, follow these guidelines:

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

• Disconnect circuit power and discharge all high-

voltage capacitors before testing resistance,diode

and continuity.

• Use the proper function and range for your

measurements.

• Before moving the rotary switch to change

functions, disconnect test leads from the circuit

under test and remove the clamp jaws from the

clamped conductor.

OPERATING INSTRUCTIONS

MEASURING DC VOLTAGE

1. Insert the plug of the black test lead to the “COM” jack,

the plug of the red test lead to the ‘V Ω’ jack.

2. Set the rotary switch to “600V position.

3. Connect the test leads to the source or load to be

measured.

4. Read the voltage value on the LCD. The polarity of the

red test lead connection will be indicated as well.

MEASURING AC VOLTAGE

1. Insert the plug of the black test lead to the “COM” jack,

the plug of the red test lead to the ‘V Ω’ jack.

2. Set the rotary switch to “600V ~position.

3. Connect the test leads to the source or load to be

measured.

4. Read the voltage value on the LCD.

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

MEASURING AC CURRENT

1. Set the rotary switch to the desired AC current range

position.

2. Press the trigger and clamp the conductor to be

measured with the jaws.

3. Make sure that the jaws are perfectly closed.

NOTE:

a. Each time only one conductor should be clamped.

b. The conductor should be in the center of the area

closed by the jaws in order to get an accurate

reading.

c. Don’t touch the conductor with your hand or skin.

4. Read the reading on the display.

MEASURING RESISTANCE

1. Insert the plug of the black test lead to the “COM” jack,

the plug of the red test lead to the ‘V Ω’ jack.

2. Set the rotary switch to the desired resistance range

position (“2000Ω“ or “200kΩ“).

3. Connect the test leads across the load to be measured.

4. Read the reading on LCD.

Note:

a. The built-in buzzer will sound when the resistance

being measured is less than about 30Ωwith the rotary

switch in “2000?” position.

b. Before you do in-circuit resistance measurement,

make sure that the power of the circuit has been

disconnected and all the capacitors have been

discharged.

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

MEASURING FOR CONTINUITY

1. Insert the plug of the black test lead to the “COM” jack,

the plug of the red test lead to the ‘V Ω’ jack.

2. Set the rotary switch to the “ “ position.

3. Connect the test leads across the load to be measured.

4. When the resistance being measured is less than about

30?, the buzzer will sound.

MEASURING DIODE

1. Insert the plug of the black test lead to the “COM” jack,

the plug of the red test lead to the ‘V Ω’ jack. ( the

polarity of the red test lead is “+”).

2. 2 Set the rotary switch to the “ ” position.

3. Connect red test lead to the anode of the diode, black

test lead to the cathode of the diode.

4. Read the approximate forward voltage on LCD.

NOTE: Reading’s unit is “mV”.

TEST RANGE SPECIFICATION

Accuracy specifications take the form of:

±(% of Reading+number of least significant digits).

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