True RMS Digital Insulation Multimeter

Model KM 878 ( 24 functions 79 ranges)


Features :
  • VFD V & Hz readings
  • Paper White Backlight LCD Display
  • Record MAX / MIN readings
  • Display Hold Function
  • Dual Digital Display
  • Autoranging
  • LOCK-Test mode for Insulation Resistance & Earth Continuity Test
  • BeepJack TM audible & visible input warning
  • Remote Probe for insulation Resistance & Earth Continuity Test
  • Functions : DC/AC Voltage , VFD AC Voltage, AC / DC mV, AC / DC mA, Insulation Resisitance, Resistance, Capacitance, Earth Continuity Test, Hz Line Level Frequency, Temperature,

  • General Specifications :
    Sensing : AC, True RMS
    Display : 3-5/6 digits 6000 Counts Backlight LCD Display.
    61 Segments Analog Bar Graph : 60 per second max.
    • Auto or Manual-ranging mode.
    • Auto Power Off.
    Polarity : Automatic
    Update Rate : 5 per second nominal
    Earth Continuity Test : 110mA @20 Ω range, 220mA @2.0 Ω range.
    Tester can perform at least 3000 Earth Continuity Test measurements with new alkaline batteries at room temperature. These are standard test of 1 Ω with a duty cycle of 5 seconds on & 25 seconds off.
    • Insulation Resistance @ 1mA Test Current :
      50V output Voltage :25mA, 100V output Voltage : 45mA
      250V output Voltage : 85mA, 500V output Voltage : 170mA
      1000V output Voltage : 440mA
      Tester can perform at least 950 Insulation Tests with new alkaline batteries at room temperature.
      These are standard tests of 1000V into 1MΩ with a duty cycle of 5 seconds on and 25 seconds off.
    Operating Temperature : -10°C ~ 40°C
    Relative Humidity : Maximum relative humidity 90% for temperature up to 28°C decreasing linearly to 50% relative humidity at 40°C.
    Pollution degree : 2
    IP Rating : IP40
    Storage Temperature : -20°C ~ 60°C, < 80% R.H. (with battery removed)
    Altitude : Operating below 2000m
    Temperature Coefficient : Nominal 0.15 x (specified accuracy)/ °C @(-10°C~18°C or 28°C~40°C), or otherwise specified.
    Low Battery : approx. 4.6V
    Power Supply : Four Alkaline AA batteries
    Power Consumption : 4.5mA typical except : ACV +Hz & VFD ACV +Hz : 7.0mA
    APO Timing : Idle for 20 minutes
    APO Consumption : 50 µA typical
    Dimension: 208(L) X 103(W) X 64.5(H) mm with holster
    Weight : 635 gm with holster.

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