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CM76

Product catalog summary

Electrical Specifications
All specified accuracies are valid at 23°C ± 5°C and less than 75% relative humidity for one year. The temperature coefficient is less than 0.1 times the specified accuracy per °C within the range of 0°C to 18°C and 28°C to 40°C.

AC Current
AC conversion is average responding with a maximum input voltage of 400A.

DC Current
Specifications for DC current are not explicitly detailed.

AC Voltage
AC conversion is average responding. The CM76 AC/DC Clamp Meter has the following specifications:

Range: 40A, 400A
Resolution: 0.01A, 0.1A
Accuracy: ± (2.0% of reading + 6 digits)

For AC voltage:

Range: 4V, 40V, 400V, 750V
Resolution: 0.001V, 0.01V, 0.1V, 1V
Accuracy: ± (0.8% of reading + 3 digits) to ± (1.0% of reading + 4 digits)

Measurement range is 10Hz to 10kHz with input sensitivity of ≥ 0.2V AC rms and input impedance of 10MΩ. Maximum input voltage is 600V AC rms.

Frequency Measurement
Using Hz/Duty ranges, the input voltage range is 200mV to 10V AC rms with overload protection of 250V DC or AC rms. Duty cycle accuracy is ± 3.0% with a resolution of 0.1% and a measurement range of 0.1% to 99.9%.

Resistance and Capacitance
Resistance has an open circuit voltage of 0.4V and overload protection of 250V DC or AC rms. Capacitance overload protection is also 250V DC or AC rms.

General Specifications
The device features a liquid crystal display with a maximum reading of 4000 digits and an analog bargraph. It includes automatic polarity indication, overrange display, low battery indication, and auto power off after approximately 15 minutes. Operating environment is 0°C to 40°C, with storage temperature from -10°C to 50°C. The device operates up to an altitude of 2000m and is powered by 3 x 1.5V AAA batteries.

Safety and Compliance
The CM76 conforms to BS EN 61010-1, BS EN 61010-2-032, CAT III 600V, and Class II Double Insulation standards. Pollution Degree is 2. TL16 test leads conform to BS EN 61010-031 CAT III 1000V, CAT IV 600V, 10A. EMC compliance is with BS EN 61326.

Additional Information
Martindale Electric Company Limited offers a range of products including calibration equipment, continuity testers, digital clamp meters, and more. Contact information and further details are available on their website.

Catalog excerpts

Specification CM76 AC/DC Clamp Meter Specification CM76 AC/DC Clamp Meter Measurement range: 10Hz to 10kHz Input sensitivity: ≥ 0.2V AC rms Input Impedance: 10MΩ Maximum input voltage: 600V AC rms ELECTRICAL SPECIFICATIONS All specified accuracies are at 23°C ± 5°C, <75% RH for 1 year. Temperature coefficient: <0.1 x (specified accuracy) per °C. (0°C to 18°C, 28°C to 40°C) Frequency measurement using Hz/Duty ranges AC conversion: Average responding Maximum input voltage: 400A DC Current Range Input voltage range: 200mV to 10V AC rms Overload protection: 250V DC or AC rms Duty Cycle Duty cycle accuracy: ± 3.0% Resolution: 0.1% Measurement range: 0.1% to 99.9% Duty cycle measurement using AC current ranges Frequency response: 10Hz to 1kHz Input sensitivity: ≥ 4A AC rms Maximum input current: 400A AC rms AC conversion: Average responding Duty cycle measurement using AC voltage ranges Frequency response: 10Hz to 10kHz Specification CM76 AC/DC Clamp Meter Specification CM76 AC/DC Clamp Meter Maximum input voltage: 750V AC rms Input Impedance: 10MΩ Overload Protection: 1000V DC or 750V AC rms Input sensitivity: ≥ 1V AC rms Input Impedance: 10MΩ Maximum input voltage: 750V AC rms Duty cycle measurement using Hz/Duty ranges Frequency response: 1Hz to 10MHz Input voltage range: 200mV to 10V AC rms Overload protection: 250V DC or AC rms Maximum input voltage: 1000V DC Input Impedance: 10MΩ Overload protection: 1000V DC or 750V AC rms Frequency Frequency measurement using AC current ranges Range Measurement range: 10Hz to 1kHz Input sensitivity: ≥ 4A AC rms Maximum input current: 400A AC rms Open circuit voltage: 0.4V Overload Protection: 250V DC or AC rms Capacitance Range Frequency measurement using AC voltage ranges Range

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Specification CM76 AC/DC Clamp Meter Continuity Resolution: 0.1Ω Audible indication: <40Ω Open circuit voltage: ~1.2V Overload protection: 250V DC or AC rms Diode Test Resolution: 0.001V Forward DC test current: ~ 1mA Reversed DC test voltage: ~ 3.3V Overload protection: 250V DC or AC rms GENERAL Display: Liquid crystal display with a maximum reading of 4000 digits and analog bargraph. Polarity: Automatic, positive implied, ‘-‘ for negative polarity indication. Overrange: (OL) or (-OL) is displayed Low battery indication: symbol is displayed when the battery voltage drops to ≤ 3.7V Sampling rate:...

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CM76

CM76

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