Martindale CM82 AC Clamp Meter

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  • Accurate measurement of AC voltage to 750V
  • DC voltage to 1000V and AC current to 1000A
  • Light enough for one handed operation but still robust enough for use in harsh environments
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"Packed full of functions for the installation, testing and maintenance of domestic and industrial installations."

  • Description

    Martindale CM82 AC Clamp Meter

    The Martindale CM82 is a high specification 1000A clamp meter, a compact meter that provides accurate measurement of AC voltage to 750V, DC voltage to 1000V and AC current to 1000A. It is light enough for use with one hand but still robust enough for use in harsh environments.

    The Martindale CM82 is performs the following measurements: resistance measurements to 40MΩ, capacitance to 4mF, frequency to 1mHz and a 400Ω continuity test and diode test.

    The CM82 is both manual or auto ranging and with a large 51mm clamp jaw size opening making it suitable for use within an industrial ewnvironment where larger cables and conductors are found. The CM82 also has a hold function which stores the last reading obtained for temporary recall. 

  • Specification

    All specified accuracies are at 23°C ± 5°C, <70% RH for 1 year

    Temperature Coefficient: 0.1 x (specified accuracy) per °C (0°C to 18°C, 28°C to 50°C)

    All accuracies below are expressed as ± (percentage of reading + digits)

    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)
    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 CM82 AC Clamp Meter
    • Bespoke carry case
    • Set of TL16 Test Leads
    • 9V PP3 Battery (Installed)
    • Instruction manual 
    • Manufacturers 12 month warranty
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  • Delivery Information

    At we understand the importance of a reliable delivery service when shopping online. Especially when the goods are often essential to your working day. If your goods are required by a certain date please feel free to contact us for an honest and realistic indication whether this can be met.

    We use DPD/Interlink for all larger items and Royal Mail for smaller items and accessories. With DPD/Interlink you will receive a 1 hour delivery window on the day of delivery via e-mail/text so you will not have to wait around all day. We also offer delivery options for goods required urgently on certain products, all which are sent by DPD/Interlink on a fully traceable and manageable service.

    Our charges for UK deliveries:

    • FREE Delivery (on select products only): typically 2-5 working days*
    • Standard Delivery at £4.95: 2-3 working days
    • Next Working Day Delivery (on select products only) at £8.95
    • Pre 10.30am Next Working Day Delivery (on select products only) at £19.95*
    • 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.

    Customers outside the UK: exports to many countries all over the world. Prices for shipping vary on location and weight/dimensions. Costs are calculated for certain countries at the checkout. If your country is not included in this list please e-mail with your name, address and the items you would like to order for an accurate shipping quote.