Martindale CM84 AC/DC Clamp Meter

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  • Measurements of AC and DC current to 1000A
  • DC voltage measurements to 1000V, AC voltage measurements to 750V
  • Resistance measurements to 40MΩ, Frequency measurements to 1MHz
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"Along with the added benefit of DC current measurement to 1000A and has a useful DC current zero function. "

  • Description

    Martindale CM84 AC/DC Clamp Meter

    The Martindale CM84 is a high specification clamp meter providing AC and DC current measurements up to 1000A along with AC/DC voltage to 750V. The Martindale CM84 also has a useful DC current zero function. The CM84 is still light enough for use in one hand while still being robust enough for use in harsh environments.

    Martindale's CM84 measures unusually high voltage readings of up to 1000V DC  and 750V AC which you would typically expect from a multimeter. Resistance to 40MΩ, frequency to 1MHz and continuity/diode testing are featured within this Martindale clamp meter. 

    The CM84 has a 57mm jaw size suitable for large cables and conductors. The safety rating of the Martindale CM84 is CAT IV 600V and CAT III 1000V.

  • Specification

    DC Voltage   
    Range Resolution Input Impedance Accuracy
    400mV 0.1mV >100MΩ 0.5% + 2
    4V 0.001V 10MΩ
    40V 0.01V 9.1MΩ
    400V 0.1V
    1000V 1V
    AC Voltage   
    Range Resolution Input Impedance Accuracy (50Hz to 500Hz)
    400mV 0.1mV >100MΩ Not specified
    4V 0.001V 10MΩ 1.5% + 5
    40V 0.01V 9.1MΩ
    400V 0.1V
    750V 1V
    AC Current   
    Range Resolution Accuracy
    50Hz to 60Hz/60 to 400Hz
    40A 0.01A 2.0% + 6
    3.0% + 6
    400A 0.1
    1000A 1A 2.0% + 6 (≤600A)
    2.5% + 6 (>600A)
    3.0% + 6 (≤600A)
    3.5% + 6 (>600A)
    DC Current   
    Range Resolution Accuracy
    400A 0.1A 2.0% + 5  
    1000A 1A 2.0% + 5 (≤600A)
    3.0% + 5 (>600A)
    Range Resolution Open Circuit Voltage Accuracy
    400Ω 0.1Ω -1.2V DC 1.0% + 5
    4kΩ 0.001kΩ -0.45V DC
    40kΩ 0.01kΩ
    400kΩ 0.1kΩ
    4MΩ 0.001MΩ 2.0% + 5
    40MΩ 0.01MΩ 3.5% + 5
    Range Resolution Accuracy
    4nF 0.001nF Not specified
    40nF 0.01nF
    400nF 0.1nF
    4μF 0.001μF 3.0% + 15
    40μF 0.01μF 3.0% + 10
    400μF 0.1μF
    4mF 0.001mF 5.0% + 10
    Range Resolution Accuracy
    4kHz 0.001kHz 0.1% + 3
    40kHz 0.01kHz
    400kHz 0.1kHz
    1MHz 0.001MHz
  • Supplied Accessories

    • Martindale CM84 AC/DC Clamp Meter
    • Carrying Case
    • TL16 Test Leads
    • 9V PP3 Battery
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    • FREE Delivery (on select products only): typically 2-5 working days*
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    • Saturday Pre 12pm Delivery (on select products only) at £19.95*
    • Sunday Pre 12pm Delivery (on select products only) at £19.95*

    *UK mainland only

    NOTE! For next working day or Saturday delivery options the order MUST be placed no later than 3pm on the working day before delivery is required. After 3pm, please arrange with our staff before selecting a priority delivery service. Priority services are available to UK mainland residents only.

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