Martindale ET4 Multifunctional Electrical Tester

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  • Non-contact voltage detection (70 to 600V)
  • AC/DC voltage and current, frequency, resistance, continuity and diode testing
  • Auto ranging, LED light, display hold and auto power off
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"Detecting voltage from 70 to 600V with its built-in non-contact detector, a compact instrument capable of a range of measurements."

  • Description

    Martindale ET4 Multifunctional Electrical Tester

    Detecting voltage from 70 to 600V with its built-in non-contact detector, the Martindale ET4 Multifunctional Electrical Tester is a compact instrument capable of a range of measurements.

    Offering measurement of AC/DC voltage, AC/DC current, frequency and resistance, as well as continuity and diode testing, the Martindale ET4 displays test results shown on its clear LCD screen and boasts simultaneous measurement of current/voltage and frequency/voltage to save time.

    Providing auto ranging functionality, an LED light to aid use in low-lit conditions, display hold and auto power off features, the Martindale ET4 is an ideal instrument for most practicing electricians and comes packaged with TL17 test leads, a soft carry case, 9V battery and manual.

  • Specification

    Electrical

    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)

    DC Voltage

    Range Resolution Input Impedance Accuracy
    500mV 0.1mV 1.1MΩ ± (0.5% of rdg + 2 dgts)
    5V 0.001V 1MΩ
    50V 0.01V
    500V 0.1V
    600V 1V

    Overload Protection: 600V DC or AC rms

    AC Voltage

    Range Resolution Input Impedance Accuracy
    500mV 0.1mV
    1MΩ
    Not specified
    5V 0.001V 50-60Hz ± (1.2% of rdg + 5 dgts)
    60-500Hz ± (2.0% of rdg + 5 dgts)
    50V 0.01V
    500V 0.1V
    600V 1V

    Overload Protection: 600V DC or AC rms

    DC Current

    Range Resolution Accuracy
    200A 0.1A ± (2.0% of rdg + 5 dgts)

    Maximum input current: 200A

    AC Current

    Range Resolution Accuracy (50 to 60Hz)
    200A 0.1A ± (2.0% of rdg + 5 dgts)

    Maximum input current: 200A

    Frequency

    Frequency measurement using AC current range

    Range Resolution Accuracy
    30Hz to 400Hz 
    0.1Hz ± (0.1% of rdg + 5 dgts)

    Input sensitivity > 10A AC rms

    Maximum input current: 200A AC rms

    Resistance

    Range Resolution Open Circuit Voltage Accuracy
    500Ω 0.1Ω -3.2V DC ± (1.0% of rdg + 5 dgts)
    5kΩ 0.001kΩ 1.1V DC Approx
    50kΩ 0.01kΩ
    500kΩ 0.1kΩ
    5MΩ 0.001MΩ ± (1.5% of rdg + 5 dgts)
    50MΩ 0.1MΩ ± (3.0% of rdg + 5 dgts)

    Overload Protection: 600V DC or AC rms

    Continuity

    Range Resolution Response Time Accuracy
    500Ω 0.1Ω 100ms <30Ω

    Overload protection: 600V DC or AC rms

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