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Metrel MI 3125 EurotestCOMBO Multifunction Installation Tester

Metrel MI 3125 EurotestCOMBO Multifunction Installation Tester

Brand
Metrel
Model number
MI 3125

Compact multifunction tester for TT and TN installations: insulation to 1000 V, 200 mA and 7 mA continuity, line / loop impedance with trip-lock, RCD, phase sequence and 3-wire earth; PASS / FAIL LEDs.

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Key features

  • Insulation resistance with DC voltage
  • Continuity of PE conductors with 200 mA test current with polarity change
  • Line impedance
  • Loop impedance
  • Loop impedance with Trip Lock RCD function
  • TRMS voltage and frequency
  • Phase sequence
  • RCD testing (general and selective, type AC, A)
  • LED Pass/Fail indicators: two LED indicators for PASS / FAIL evaluation of test results are placed on both sides of the LCD
  • Help screens: instrument comes complete with built-in help screens for referencing on site
  • Built-in fuse tables: this unique feature allows automatic evaluation of the line / loop impedance compared to the regulations
  • Online voltage monitoring: monitors all 3 voltages in realtime
  • Upgradeable: if changes occur to the regulations, upgrades can be made to the firmware to keep the unit up to date
  • Polarity swap: automatic polarity re-versal on continuity test
  • Insulation range: wide range of insulation test voltages from 50 V to 1000 V, reading up to 1000 MΩ
  • Trip Lock function: Zs (RCD) function performs a loop impedance test without tripping the RCD
  • Multisystem testing: tests on single and multiphase TT and TN systems
  • Built-in charger & rechargeable batteries: unit has a built-in charging circuit and comes complete with a set of rechargeable NiMH batteries
  • RCD auto: automated RCD testing procedure significantly reduces test time

Specifications

Insulation resistance
U = 50, 100, 250, 500 VDC, 1 kVDC0.00 MΩ ... 999 MΩ; ±⁠(5 % of reading + 3 digits) up to 19.99 MΩ
Continuity
200 mA with polarity change0.00 Ω ... 1999 Ω; ±⁠(3 % of reading + 3 digits) up to 19.99 Ω
7 mA (continuous measurement)0.0 Ω ... 1999 Ω; ±⁠(5 % of reading + 3 digits)
Impedance
Loop and line impedance0.00 Ω ... 9.99 kΩ; ±⁠(5 % of reading + 5 digits) up to 99.9 Ω
Voltage
Voltage / frequency0 V ... 550 V / 0.00 Hz ... 499.9 Hz
Phase sequence1.2.3 or 3.2.1
RCD
Contact voltage Uc / trip-out time0.0 V ... 99.9 V / 0 ms ... max. time
Earth resistance
3-wire0.00 Ω ... 9999 Ω; ±⁠(5 % of reading + 5 digits)
General
Overvoltage categoryCAT III / 600 V; CAT IV / 300 V
Power supply6 x 1.2 V rechargeable batteries, type AA
CommunicationRS232 and USB
Dimensions / weight140 x 80 x 230 mm / 1.0 kg
Supplied with
MI 3125 Standard setInstrument MI 3125 EurotestCOMBO; Set of carrying straps; Test probe, 3 pcs (blue, black, green); Crocodile clip, 3 pcs (blue, black, green); Power supply adapter + 6 rechargeable batteries NiMH, type AA; Calibration certificate; Short instruction manual; Instruction manual; PC Software; EuroLink PRO* (SW 0101)

Specifications are from the manufacturer's published information. Confirm critical values with us or the datasheet before ordering.

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