Clamp Meter: Martindale CM54 AC0 pages

Specication
CM54 Clamp Meter
Display: 3½ digit 21mm large LCD, maximum reading 1999
with function and units sign annunciators.
Polarity: Automatic, positive implied, negative indicated.
Over Range Indication: (OL) is displayed.
Low Battery Indication: The “” is displayed when the battery
voltage drops below accurate operating level.
Display Update Rate: 2.5 per second, nominal
Operating Environment: 0°C to 50°C at <70% Relative
Humidity.
Storage Environment: -20°C to 60°C at <80% Relative
Humidity with battery removed from meter.
Temperature Coefcient: 0.1 X (specied accuracy) / °C
(<18°C or >28°C)
Altitude: 2000M max
Power: Standard 9-volt battery, NEDA 1604, IEC 6F22, JIS
006P, PP3
Battery Life: 300 hours typical with alkaline battery.

Audible Threshold

Open Circuit Volts

Response Time

Jaw Opening Capability: 57mm conductor, 70 X 18mm bus
bar.

Less than 75

3.0Vdc typical

~500msec

Size (H x W x D): 189 x 87 x 37mm

Continuity Test

Overload Protection: 500v DC or AC rms

Weight: Approx. 540grams (including battery)

DC Volts

* Accuracy is given as ± ([% of reading]+[number of least
signicant digits]) at 18°C to 28°C with relative humidity up
to 70%.

Range

Resolution

Accuracy

Input Impedance

1000V

1V

±(0.5% rdg +1d)

10M

Overload protection: 1000VDC / 750V AC RMS
AC Volts (Average sensing RMS indicating)
Range

Resolution

Accuracy

Input Impedance

750V

1V

±(1.5% rdg +4d)

4.5M

AC Current (Average sensing RMS indicating)
Range

Resolution

200A

100mA

1000A

1A

Accuracy
0-600A±(1.5% rdg+5d)50-60Hz
>600A±(2.0% rdg+5d)50-60Hz
0-600A±(3.0%rdg+5d)61-400Hz
>600A±(3.5%rdg+5d)61-400Hz

Overload Protection: 1200A for 60 seconds Maximum
Resistance
Range

Resolution

Accuracy

Open Circuit Volts

200
20k
20M
2000M

0.1
10
10k
1000k

±(1.2% rdg+4d)
±(1.0% rdg+3d)
±(2.0% rdg+5d)
±(5% rdg+10d)

3.0Vdc
0.3Vdc
0.3Vdc
3.0Vdc

Overload Protection: 500v DC or AC RMS

Due to policy of continuous development, Martindale Electric reserves the right to alter equipment specication and description outlined in this document without prior notice. No part of this
document shall be deemed to be part of any contract for the equipment unless specically referred to as an inclusion within such contract. © Martindale Electric Co. Ltd. 2010

Martindale Electric Company Ltd.
Metrohm House, Penfold Trading Estate, Imperial Way, Watford, WD24 4YY. Tel: 01923 441717 Fax: 01923 446900
sales@martindale-electric.co.uk www.martindale-electric.co.uk Rev 4