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Martindale MM39 Digital Multimeter

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  • Measures voltage, current and resistance plus continuity and diode tests
  • Multiple ranges and resolutions ensure precision for voltage and resistance
  • Vibrant digital display with simple dial function selector

rrp £45.00

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rrp £45.00

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  • Description

    Martindale MM39 Digital Multimeter

    The Martindale MM39 Digital Multimeter is a user-friendly instrument that can measure AC/DC voltage (600V), AC/DC current (10A), and resistance (20MΩ) as well as performing continuity and diode testing. Voltage and resistance benefit from a choice of ranges (autoranging available) which enhances the resolution over the entire range of the multimeter whilst all readings have a high degree of accuracy.

    Results are displayed on the Martindale MM39’s digital LCD screen which has range locking function and display hold function. The function is selected by the single, user-friendly dial and an audible buzzer sounds for the diode and continuity tests. The two AAA batteries will power the multimeter for roughly 200 hours and it comes with test leads so the user can get testing straight away.

    Martindale part number: MARMM39

    Key Features

    • AC/DC voltage range: 600V
    • AC/DC current range: 10A
    • Resistance range: 20MΩ
    • Diode test
    • Continuity test
    • LCD digital screen
  • Specification

    • DISPLAY: ½ digit liquid crystal display (LCD) with a maximum reading of 1999
    • POLARITY: Automatic, positive implied, negative polarity indication
    • OVERRANGE: (OL) or (-OL) is displayed
    • ZERO: Automatic
    • MEASUREMENT RATE: 2 times per second, nominal
    • AUTO POWER OFF: Approx.10 minutes
    • OPERATING ENVIRONMENT: 0°C to 50°C at < 70% relative humidity
    • STORAGE TEMPERATURE: -20°C to 60°C at < 80% relative humidity
    • ACCURACY: Stated accuracy at 23°C ± 5°C, <75% relative humidity
    • TEMPERATURE COEFFICIENT: 0.1 × (specified accuracy) per °C. (0°C to 18°C, 28°C to 50°C)
    • ALTITUDE: 6561.7 Feet (2000m)
    • POWER: 1.5V batteries x2, R03/SIZE AAA
    • BATTERY LIFE: 200 hours typical with carbon-zinc
    • DIMENSIONS: 145mm (H) × 70mm (W) × 34mm (D)
    • WEIGHT: Approx. 11.1 oz. (315g) including holster

    DC VOLTS

    • RANGES: 200mV, 2V, 20V, 200V, 600V
    • RESOLUTION: 0.1mV
    • ACCURACY: ±(1.0% rdg + 2 dgts)
    • INPUT IMPEDANCE: 200mV; >100MΩ; 2V:10MΩ; 20V ~ 600V:9.1MΩ
    • OVERLOAD PROTECTION: 600VDC or AC rms

    AC VOLTS(50Hz - 500Hz)

    • RANGES: 200mV, 2V, 20V, 200V, 600V
    • RESOLUTION: 0.1mV
    • ACCURACY: ±(2.0% rdg + 5 dgts) 50Hz ~ 100Hz on 200mV range; ±(2.0% rdg + 5 dgts)
    • INPUT IMPEDANCE: 200mV:>100MΩ; 2V:10MΩ; 20V ~ 600V:9.1MΩ
    • OVERLOAD PROTECTION: 600V DC or AC rms

    CURRENT

    • RANGES: 10A
    • RESOLUTION: 0.01A
    • DC ACCURACY: ±(3.0% rdg + 3 dgts)
    • AC ACCURACY: (50Hz ~ 500Hz) ± (3.5% rdg + 5 dgts)
    • VOLTAGE BURDEN: 0.2V
    • INPUT PROTECTION: 10A/500V fast blow ceramic fuse

    RESISTANCE

    • RANGES: 200Ω, 2kΩ, 20kΩ, 200kΩ, 2MΩ, 20MΩ
    • RESOLUTION: 0.1Ω
    • ACCURACY: ±(1.5% rdg + 4 dgts) on 200Ω to 200kΩ ranges; ±(2.5% rdg +4 dgts) on 2MΩ range; ±(5.0% rdg + 5 dgts) on 20MΩ range
    • OPEN CIRCUIT VOLTS: -0.45Vdc (-1.2Vdc on 200Ω range)
    • OVERLOAD PROTECTION: 500V DC or AC rms

    DIODE TEST

    • TEST CURRENT: 1.0mA (approximate)
    • ACCURACY: ±(3.0% rdg + 3 dgts)
    • RESOLUTION: 10mV
    • AUDIBLE INDICATION: <0.25V
    • OPEN CIRCUIT VOLTS: 3.0Vdc typical
    • OVERLOAD PROTECTION: 500VDC or AC rms

    CONTINUITY

    • AUDIBLE INDICATION: Less than 25Ω
    • RESPONSE TIME: 500ms
    • OVERLOAD PROTECTION: 500VDC or AC rms
  • Supplied Accessories

    • Martindale MM39 Digital Multimeter
    • Test leads
    • Instruction manual
    • 2 x 1.5V AAA batteries
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