Description

Multi-function Electrical Installation Meter | MPI-540

Measurement of short circuit loop impedance ZL-PE, ZL-N, ZL-L

Test current: 23/40A; measuring range acc. to IEC 61557: 0,13…1999,9 Ω (for 1.2m test lead):

• rated voltage: 95…270 V (for ZL-PE and ZL-N) and 95…440 V (for ZL-L)
• frequency: 45…65 Hz

Measurement of short circuit loop impedance ZL-PE in RCD mode

Test current: 15mA, measuring range acc. to IEC 61557: 0,50…1999 Ω

• rated voltage: 95…270 V
• frequency: 45…65 Hz

Measurement of earth resistance RE with the 3p and 4p method
Measuring range acc. to IEC 61557-5: 0,50 Ω…1,99 k Ω for test voltage 50 V 0,56 Ω …1,99 k Ω for test voltage 25 V

• test voltage: 25 V or 50 V rms
• test current: 20 mA, sinusoidal rms 125 Hz (for fn = 50 Hz) and 150 Hz (for fn = 60 Hz)
• measurement blocked at interference voltage UN > 24 V
• maximum measured interference voltage Unmax = 100 V
• maximum resistance of auxiliary earth electrodes 50 kΩ

Selective earth resistance measurement with clamp (3p + clamp)
Measuring range acc. to IEC 61557-5: 1 Ω…1,99 kΩ

• measurement with additional current clamp
• interference current measuring range: up to 9,99 A

Selective earth measurement with two clamps

• measurement with transmitting and receiving clamps
• interference current measuring range: up to 9,99 A

Soil resistivity measurement (ρ)

• measurement with Wenner’s method
• distance settable in metres or feet
• distance range: 1…30 m (1…90 feet)

Phase sequence indication

• phase sequence indication: conforming, non-conforming
• mains voltage range U : 100…440 V (45…65 Hz) L-L
• display of phase-to-phase voltage values

Measurements of RCD parameters (voltage range 95…270 V):
RCD tripping test and measurement of tripping time tA (for tA measurement function)

• accuracy of residual current application: for 0,5*IΔn:-8…0% for 1*IΔn, 2*IΔn, 5*IΔn: 0…8%
• measurement of RCD tripping current IΔn for sinusoidal residual current (AC type)

• the measurement can be started from positive or negative half-period of forced leakage current (AC)

Measurement of RCD tripping current IA for unidirectional residual current and unidirectional with the 6 mA DC bias (type A)

• measurement for positive or negative half-periods of forced leakage current

Measurement of RCD tripping current I for direct residual current (type B)

• measurement for positive or negative half-periods of forced leakage current
• IΔn – rated residual current

Insulation resistance measurements

Measuring range acc. to IEC 61557-2:

• for Un = 50 V: 50 kΩ…250 MΩ
• for Un = 100 V: 100 kΩ…500 MΩ
• for Un = 250 V: 250 kΩ…999 MΩ
• for Un = 500 V: 500 kΩ…2 GΩ
• for Un = 1000 V: 1 MΩ…9,99 GΩ

*) not greater than measuring range for given voltage
Low-voltage measurement of resistance and circuit continuity Measurement of protective conductor continuity with the ±200 mA current

• voltage on open terminals: 4…9 V
• output current at R < 2 Ω: min. 200 mA
• autocalibration of test leads
• measurements for both current polarities

Illuminance measurement

• measurement in luxes (lx) or feet-candles (fc)

Three-phase recorder of electrical network parameters

The device is designed to work with networks:

• with nominal frequency 50/60 Hz
• with nominal voltage:
  • 64/110 V
  • 110/190 V
  • 115/200 V
  • 127/220 V
  • 220/380 V
  • 230/400 V
  • 240/415 V
  • 254/440 V
  • 290/500 V
• DC network

Supported networks:

• single-phase
• two-phase with common N conductor,
• three-phase star connection N with and without conductor
• three-phase delta

Parameters of analyzer:

* Clamp F-1A, F-2A, F-3A: 0..3000 A (10000 Ap-p )
* Clamp C-4A: 0..1000 A (3600 Ap-p )
* Clamp C-5A: 0..1000 A (3600 Ap-p )
* Clamp C-6A: 0..10 A (36 Ap-p )
* Clamp C-7A: 0…100 A (360 Ap-p )

Multi-function Electrical Installation Meter | MPI-540