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SAFETY INFORMATION: Always read before proceeding.

WARNING

This manual contains both information and warnings that are necessary for
the safe operation and maintenance of the clampmeter. It is recommended
that you read the instructions carefully and ensure that the contents are fully
understood. Failure to understand and to comply with the warnings and
instructions can result in serious injury, damage or even death.

In order to avoid the danger of electrical shock, it is important that proper
safety measures are taken when working with voltages exceeding 30V AC
rms, 42V AC peak or 60V DC.

The clampmeter must only be used under the conditions and for the 
purposes for which it has been constructed. Particular attention should be
paid to these warnings, the precautions, the technical specifications and
the use of the CM56 in dry surroundings.

Always inspect your clampmeter, test leads and accessories for any sign of 
damage before use. If any abnormal conditions exist (e.g: broken test
leads, cracked case, display not reading, etc.), do not attempt to use it. Do
not expose it to direct sunlight, excessive temperature or moisture.

Keep this manual for future reference. Updated instructions and 
product information are available at: www.martindale-electric.co.uk

SYMBOLS:

Equipment complies with relevant EU Directives

AC (Alternating Current)

Ground

Direct Current

Equipment protected by Double Insulation (Class II)

Caution - refer to accompanying documents

Caution - risk of electric shock

End of life disposal of this equipment should 
be in accordance with relevant EU Directives

!

Summary of Contents for CM56

Page 1: ...rom Martindale Martindale Electric Company Limited Metrohm House Penfold Trading Estate Imperial Way Watford WD24 4YY UK Tel 44 0 1923 441717 Fax 44 0 1923 446900 E mail sales martindale electric co u...

Page 2: ...een constructed Particular attention should be paid to these warnings the precautions the technical specifications and the use of the CM56 in dry surroundings Always inspect your clampmeter test leads...

Page 3: ...Information 5 3 Operation 6 3 1 Voltage Measurement 6 3 2 Current Measurement 7 3 3 Resistance Measurement 8 3 4 Continuity Testing 9 3 5 Diode Testing 9 3 6 Frequency Measurements 9 4 Maintenance 10...

Page 4: ...s designed for use in the laboratory field servicing and any circumstance where high current measurement is required The clampmeter incorporates a finger guard which ensures the safety of the user whi...

Page 5: ...use this function select the current range and press the PEAK button The PEAK indicator will appear on the display When the instrument detects current the peak value will be displayed and held in the...

Page 6: ...9 Volt battery installed in meter 4 Instruction manual 5 Protective carry case If any of the above items are missing please contact your distributor immediately 1 3 REPLACING THE BATTERY WARNING To a...

Page 7: ...ing Electrical noise or intense electromagnetic fields in the vicinity of the equipment may disturb the measurement circuit Measuring instruments will also respond to unwanted signals that may be pres...

Page 8: ...y voltage measurements if the voltage is above 1000V DC or 750VAC These are the maximum voltages that this instrument is designed to measure The COM terminal potential should not exceed 500V measured...

Page 9: ...2 Repair Service There are no user serviceable parts in this unit Return to Martindale Electric Company Ltd if faulty Our service department will quote promptly to repair any fault that occurs outsid...

Page 10: ...uit and from the input terminals of the clampmeter 3 5 DIODE TESTING 1 Set the position by turning the rotary switch and press the RANGE button to enter Diode testing 2 Follow steps 2 4 as for resista...

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