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CMM-40 Industrial multimeter
CMM-40 Industrial multimeter
Description
Technical specification
Files
  • Description
    A rugged, hand-held Industrial Multimeter. The CMM-40 was designed for the measurements of:
    • AC/DC voltage
    • AC/DC current
    • resistance
    • capacitance
      frequency
    • duty cycle
    • temperature
    • testing diodes
    • continuity
  • Technical specification

    The most important features of CMM-40 are:

    • autoranging/manual range selection,
    • „DATA HOLD” function, for holding measured values,
    • „REL” function, which allows you to make measurements relative to a stored reference value,
    • „MAX/MIN” function,
    • „PEAK HOLD” function,
    • memory for 2,000 measurement results,
    • continuity test with acoustic signalling (beeper),
    • „AUTO-OFF” function,
    • display 4¾ digits (40,000 max),
    • double molded, waterproof casing.

    Frequency measurement (electronic)

    Range Resolution Accuracy
    40.000 Hz 0.001 Hz ±(0.1% m.v. + 1 digit)
    400.00 Hz 0.01 Hz
    4.0000 kHz 0.0001 kHz
    40.000 kHz 0.001 kHz
    400.00 kHz 0.01 kHz
    4.0000 MHz 0.0001 MHz
    40.000 MHz 0.001 MHz
    100.00 MHz 0.01 MHz not speccified
    • Sensitivity: 0.8 V rms min. @ 20% to 80% duty cycle and <100 kHz; 5 V rms min @ 20% to 80% duty cycle and > 100 kHz

    Frequency measurement (electrical)

    Range Resolution Accuracy
    40.00 Hz to 10.000 kHz 0.01 Hz to 0.001 kHz ± 0.5% m.v.
    • sensitivity: 1 V rms

    Duty cycle measurement

    Range Resolution Accuracy
    0.10 to 99.9% 0.01% ±(1.2% m.v. + 2 digits)
    • pulse width: 100μs to 100 ms,
    • frequency width: 5 Hz to 150 kHz.

    Temperature measurement

    Range Resolution Accuracy
    -50.0°C to +1,200.0°C 0.1°C ±(1% m.v. + 2.5°C)
    -58.0°F to +2,192.0°F 0.1°F ±(1% m.v. + 4.5°F)

    DC voltage measurement

    Range Resolution Accuracy
    400.0 mV 0.01 mV ±(0.06% m.v. + 4 digits)
    4.0000 V 0.0001 V
    40.000 V 0.001 V
    400.00 V 0.01 V
    1000.0 V 0.1 V ±(0.1% w.m. + 5 digits)

    AC voltage measurement (True RMS)

    Range Resolution Accuracy
    400.00 mV 0.01 mV ±(1% m.v. + 40 digits)
    4.0000 V 0.0001 V ±(1% m.v. + 30 digits)
    40.000 V 0.001 V
    400.00 V 0.01 V
    1000.0 V 0.1 V
    • frequency range: 50 to 1000 Hz.

    AC/DC current measurement (True RMS)

    Range Resolution Accuracy
    400.00 μA 0.01 μA for DC ±(1.0% m.v. + 3 digits)

    for AC ±(1.5% m.v. + 30 digits)

    4,000.0 μA 0.1 μA
    40.000 mA 0.001 mA
    400.00 mA 0.01 mA
    10.000 A 0.001 A
    • 20 A: 30 sec max with reduced accuracy.

    Resistance measurement

    Range Resolution Accuracy
    400.00 Ω 0.01 Ω ±(0.3% m.v. + 9 digits)
    4.0000 kΩ 0.0001 kΩ ±(0.3% m.v. + 4 digits)
    40.000 kΩ 0.001 kΩ
    400.00 kΩ 0.01 kΩ
    4.0000 MΩ 0.0001 MΩ
    40.000 MΩ 0.001 MΩ ±(2.0% m.v. + 10 digits)

    Capacitance measurement

    Range Resolution Accuracy
    40.000 nF 0.001 nF ±(5.0% m.v. + 7 digits)
    400.00 nF 0.01 nF
    4.0000 μF 0.0001 μF ±(3.0% m.v. + 5 digits)
    40.000 μF 0.001 μF
    400.00 μF 0.01 μF
    4000.0 μF 0.1 μF ±(5.0% m.v. + 5 digits)
    40.000 mF 0.001 mF

    Other technical data:

    • power supply: 9 V battery type 6LR61
    • diode test: I=0.9 mA, U0 = 2.8 V DC
    • continuity test: I<0.35 mA, sound signal for R<35 Ω
    • over range indication: 0L displayed
    • crest factor: ≤ 3 at full scale up to 500 V; decreasing linearly to ≤ 1.5 at 1,000 V
    • PEAK: captures peaks >1 ms
    • sampling rate: 2 times per second
    • input impedance: 10 MΩ (V DC), 9 MΩ (V AC)
    • display: 40,000 counts backlit LCD with bargraph, 4¾ digits
    • store capacitance: 2,000
    • dimensions: 7.36" x 3.19" x 2.17" / 187 x 81 x 55 mm
    • weight: 0.75 lbs / 342 g
    • fuses: mA, µA range: 0.5 A/1,000 V ceramic fast blow; A range: 10 A/1,000 V ceramic fast blow
    • auto power OFF: 15 min.
    • accordance with following standards: EN 61010 - 1:2004, EN 61010 - 2 - 032

    Electric security:

    • type of insulation: double, according to EN 61010 - 1 and IEC 61557
    • measurement category: CAT III 1000 V acc. to EN 61010 - 1:2004
    • protection class acc. to EN 60529: IP67

    Rated operational conditions:

    • operating temperature: 32F to 104F / 0 to +40°C
    • storage temperature: -4F to 140F / -20 to +60°C
    • operating humidity: max 80% up to 87°F (31°C); decreasing linearly to 50% at 104°F (40°C)
    • operating altitude: max 6,562 ft / 2,000 m

    „m.v.”- measured value

  • Files

Standard accessories, supplied with the instrument