MPI-525 多功能儀表電氣裝置

• Short-circuit loop measurement:
  -impedance measurement with 23A current (44A phase-to-phase) - short-circuit resistor  R=10Ω,
  - measurement range: 95...440V, frequency 45...65Hz,
• Short-circuit loop measurement with resolution  0,01Ω, in distribution network without tiggering RCD (IΔn≥30mA):
  - automatic  calculation of short-circuit, detection of phase voltage and phase-to-phase voltage,
  - additional UNI-Schuko plug for automatic measurement,  AGT adapter for 3 phase network measurement.
• Testing of general and selective RCD with the rated differential current of 10,30,100,300,500 and 1000mA. (Type AC, A and B).
• Measurement of insulation resistance:
  - with test voltage 250V, 500V, 1000V, 2500V,
  - measurement range up to 10GΩ,
  - automatic discharging after measurement,
  - automatic measurement of all resistences in 3,4,5-wire cables using optional adapter AUTO-ISO,
  - acoustic signals in 5sec intervals for insulation resistance characteristic,
  - safety measurement - protection against overvoltage.
• Measurement of earthing resistance.
• Bi-directional testing of PE wire continuity using 200mA current.
  - Autocalibration of test leads.
• Phase sequence testing.
• Memory is divided into 10 memory banks each of them containing 99 memory cells.
• Battery charge indicator.
• AUTO-OFF function.
• USB interface.

Rated operational conditions:
- operation temperature     0...+50°C

Electric security:
- type of insulation: double, according to  PN-EN 61010-1ａnd IEC 61557, EMC
- measurement category: IV 300V acc. to PN-EN 61010-1
- protection class acc. to  PN-EN 60529: IP54

Short-circuit loop impedance measurement  Z_L-PE, Z_L-N, Z_L-L
Measurement using 23/40A current measurement range in accordance with
IEC 61557: 0,13...1999,9Ω
(for 1,2m lead):

rated voltage: 95...270V (forZ_L-PE i Z_L-N) and 95...440V (for Z_L-L)
frequency: 45...65Hz

Short-circuit loop impedance measurement Z_L-PE RCD        
Measurement using 15mA current measurement range in accordance with
IEC 61557: 0,50...1999,9Ω

rated voltage: 95...270V
frequency: 45...65Hz

Measurement of earthing R_{E
Rated voltage in accordance with IEC 61557-5: 0,5...1999Ω}

*)   limited to measurement range.
- with UNI-Schuko additional error ±2%.

 

Phase sequence
- phase sequence indicator: forward, reverse
- mains voltage range U_L-L: 100...440V (45…65Hz) U_L-L: 100...440V (45...65Hz)
- display of phase-to-phase voltages

Low voltage test of the circuit and insulation continuity
Test of PE wire continuity using a ±200mA current

- Voltage on open terminals: 4…9V
- Test current at  R<2Ω: min. 200mA at rated battery voltage
- Autocalibration of test leads
- Measurements for both polarizations of the current

RCD trigger and response time test t_A (for t_A mode)
Measurement ranges in accordance with IEC 61557: 0ms ... up to the upper bound of the displayed value

Precision of the differential current: for 0,5*I_Δn:-8...0% dla 1*I_Δn, 2*I_Δn, 5*I_Δn: 0...8%

Measurement of the RCD triggering current (I_A) for sine waveform testing current

Measurement of the RDC triggering current (I_A ) for a unidirectional half period sine
waveform test current with a 6mA direct current offset

a measurement is possible for a positive or negative forced leakage current

Measurement of the RCD triggering current (IA ) for direct testing current

?a measurement is possible for a positive or negative forced leakage current

„m.v.” measured value.