Item No.: LM8331

Multi- and milliohmmeter, insulation tester, winding test and data logger

The multimeter is a portable, extremely rugged instrument designed for use in the field. It’s suitable for maintenance, service and diagnostics at electric machines, drive units and systems, for example in automotive, avionics, energy and automation applications.

The all-in-one instrument combines an insulation tester, a milliohmmeter, a coil short-circuit tester and a universal multimeter. It’s ideal for safety testing and diagnostics at electric and hybrid vehicles, as well as all types of electric machines.

In combination with an optional coil test adapter, it permits to check coils for interturn short-circuits.

  • Insulation resistance measurement up to 3.1 GΩ with interference voltage detection, test voltages: 50, 100, 250, 500 and 1000 V per EN 61557-2 / VDE 0413-2
  • DAR: PI:
  • 4-wire milliohm measurement with Kelvin connection and 200 mA or 1 A measuring current for precise measurement of extremely small resistances with a resolution of 1
  • 2-wire Rlow measurement with 200 mA test current per EN 61557-4 / VDE 0413-4
  • Short-circuited coil measurement
  • Multifunctional instrument
  • TRMS AC / AC+DC measurement for current/voltage up to 10/100 kHz
  • AC, AC+DC low-pass filter
  • Direct current measurement
  • Current measurement with clamp sensors: The transformation ratio can be adjusted with the CLIP from 1:1 to 1:1000 and is taken into account in the amperage display.
  • Capacitance measurement
  • Precision temperature measurement – °C, °F for RTD and TC-K sensors
  • Diode measurement (Kflow up to 5.1 V) and continuity testing
  • Acoustic signals
  • Acquisition of min./max. values, DATA Hold
  • Data logger thanks to integrated memory module and real-time clock, for individual measurements as well
  • The push/print function transfers measured values to application software by simply pressing a key
  • Programmable sequences for test routines
  • METRALOG APP for Android OS
  • Color graphic display
  • Modular power supply: standard quick-change rechargeable lithium battery and optional mains module with USB port, change without interrupting the measuring circuit thanks to patented touch-protected module socket
  • Automatic blocking sockets (ABS) for the current input
  • Test probe with START (ISO) and STORE keys
  • Housing with IP 52 protection, dust and splash protected, replaceable rubber holster
  • Bluetooth integrated, USB with optional mains module

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