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Clamp Meter: Martindale CM54 AC

Clamp Meter: Martindale CM54 AC
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Clamp Meter: Martindale CM54 AC

Product catalog summary
Specification Overview:
The CM54 Clamp Meter features a 3½ digit 21mm large LCD display with a maximum reading of 1999, including function and unit sign annunciators. It automatically indicates polarity, with negative values shown explicitly. Over-range is indicated by 'OL', and low battery is signaled by a specific icon. The display updates at a nominal rate of 2.5 times per second.
Environmental Conditions:
Operating conditions are between 0°C to 50°C with less than 70% relative humidity. For storage, the environment should be between -20°C to 60°C with less than 80% relative humidity, and the battery should be removed. The device can operate at altitudes up to 2000 meters.
Power and Physical Specifications:
The meter is powered by a standard 9-volt battery, with a typical battery life of 300 hours using an alkaline battery. It has a jaw opening capability of 57mm for conductors and 70 x 18mm for bus bars. The dimensions are 189 x 87 x 37mm, and it weighs approximately 540 grams including the battery.
Accuracy:
Accuracy is specified as ± ([% of reading] + [number of least significant digits]) at 18°C to 28°C with up to 70% relative humidity.
Continuity Test:
The audible threshold is less than 75Ω with an open circuit voltage of 3.0Vdc and a response time of approximately 500 milliseconds. It has overload protection up to 500V DC or AC RMS.
Voltage and Current Measurement:
  • DC Volts: Range up to 1000V with 1V resolution and ±(0.5% rdg +1d) accuracy, protected up to 1000VDC / 750V AC RMS.
  • AC Volts: Range up to 750V with 1V resolution and ±(1.5% rdg +4d) accuracy, with an input impedance of 4.5MΩ.
  • AC Current: Ranges of 200A and 1000A with varying resolutions and accuracies depending on frequency, protected up to 1200A for 60 seconds maximum.
Resistance Measurement:
Ranges from 200Ω to 2000MΩ with varying resolutions and accuracies. Overload protection is up to 500V DC or AC RMS.
Additional Information:
Martindale Electric reserves the right to alter specifications without notice. The document is not part of any contract unless specifically included. Contact details for Martindale Electric Company Ltd. are provided for further inquiries.
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Catalog excerpts

Clamp Meter: Martindale CM54 AC-1

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. Continuity Test Weight: Approx. 540grams (including battery) * Accuracy is given as ± ([% of reading]+[number of least signicant digits]) at 18°C to 28°C with relative humidity up to 70%. Input Impedance Overload protection: 1000VDC / 750V AC RMS AC Volts (Average sensing RMS indicating) Range Input Impedance AC Current (Average sensing RMS indicating) Range Overload Protection: 1200A for 60 seconds Maximum Resistance Range Open Circuit Volts 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 [email protected] www.martindale-electric.co.uk Rev 4

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.