Description

Electrical Installation Multi-function Meter MPI-530

Technical Specifications

Measurement of short circuit loop impedance:

• Impedance measurement with resolution 0,001 Ω and 23 A current (44 A phase-to-phase) – short-circuit resistor R_ZW = 10 Ω
• Measurement range: 95 – 440 V, Frequency 45 – 65 Hz
• Measurement of short circuit loop impedance with resolution 0,01 Ω, in protected systems without tripping the RCD’s with I_Δn ≥ 30 mA
• Automatic calculation of short-circuit current, differentiating between phase-to-phase and phase-to-neutral voltage
• Measurements using UNI-Schuko plug with measurement triggering  button (also when L and N leads are exchangeable) or 1,2 m, 5 m, 10 m, 20 m test leads, with optional use of  3-phase socket adapters (AGT)
• Selection of installation protections and automatic evaluation of measurement results

Tests of residual current devices (RCD), types AC, A, F, B, and B+:

• Measurement of general, short-time delay and selective RCD’s with the rated residual current of 10, 30, 100, 300, 500, and 1000 mA
• Automatic measurement of all RCD parameters (when the START button is pressed, the meter performs the whole measurement cycle, including the

L-PE short circuit loop impedance measurement with 15 mA current),

• A user selected waveform of forced leakage current: sinusoidal (start from increasing or decreasing edge), unidirectional pulsating (positive or negative), unidirectional pulsating with DC bias (positive and negative), direct (positive and negative)
• The measurement of tripping current I_A using the ramp current
• Measurement of tripping time t_A at  ½I_Δn, 1I_Δn, 2I_Δn, and 5I_Δn
• Measurement of touch voltage UB and protective conductor resistance R_E without the RCD tripping
• Detection that L and N conductors are switched in the socket; will not affect the measurement
• Measurement of tripping current  I_A and actual tripping time t_AI at single activation of RCD
• Measurement for 95 – 70 V voltage

Insulation resistance measurements:

• Test voltage values: 50 V, 100 V,  250 V,  500 V  and 1000 V
• Insulation resistance measurements up to 10 GΩ
• In-socket measurements using the UNI-Schuko adapter
• Meter is protected against voltage on the tested object and voltage appearing during the measurement
• Auto-discharge of the object after the measurement
• Automatic measurement of all resistance combinations in three-, four- and five core leads using the additional AutoISO-1000C adapter
• Acoustic signaling of five-second periods to enable determining the time profile during the insulation resistance measurements

Low-voltage resistance measurement of equipotential and protective bonding:

• Continuity measurement  of protective conductor with  ≥200 mA current in both directions
• Low current measurement  with the sound signal
• Autocalibration of test leads – leads of any length can be used

Earth resistance measurements:

• Measurement with 3- and 4-pole methods with 2 Additional electrodes
• The measurement with the 3-pole method with an additional clamp
• Measurement with the 2-clamp method

Soil resistivity measurements.
Illuminance measurements.
A quick check of PE connection correctness.
Measurement and recording of voltage, frequency, AC, cosφ and power (active, reactive and apparent), voltage and current harmonics up to 40,  THD.
Checking reactive phase sequence and motor direction of rotation.
Innovative memory with the possibility of a description of measurement points, facilities, names of customers.
Power supply from rechargeable disposable batteries (optional)
The meter conforms to EN 61557.

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

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

Display range	Resolution	Accuracy
0,000 – 19,999 Ω	0,001 Ω	±(5% m.v. + 30 digits)
20,00 – 199,99 Ω	0,01 Ω	±(5% m.v. + 30 digits)
200,0 – 1999,9 Ω	0,1 Ω	±(5% m.v. + 30 digits)

• Rated voltage: 95 – 270 V (for Z_L-PE and Z_L-N) and 95 – 440 V (for Z_L-L)
• Frequency: 45 – 65 Hz

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

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

Display range	Resolution	Accuracy
0,00 – 19,99 Ω	0,01 Ω	±(6% m.v. + 10 digits)
20,0 – 199,9 Ω	0,1 Ω	±(6% m.v. + 5 digits)
200 – 1999 Ω	1 Ω	±(6% m.v. + 5 digits)

• Rated voltage: 95 – 270 V
• Frequency: 45 – 65 Hz

Measurement of earth resistance R_E with the 3p and 4p method

Measuring range acc. to IEC 61557-5: 0,50 Ω -1,99 kΩ for test voltage 50 V| 50 Ω – 1,99 kΩ for test voltage 25 V

Display range	Resolution	Accuracy
0,00 – 9,99 Ω	0,01 Ω	±(2% m.v. + 4 digits)
10,0 – 99,9 Ω	0,1 Ω	±(2% m.v. + 3 digits)
100 – 999 Ω	1 Ω	±(2% m.v. + 3 digits)
1,00 – 1,99 kΩ	0,01 kΩ	±(2% m.v. + 3 digits)

• 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 U_N> 24 V
• Maximum measured interference voltage U_nmax= 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 – 1,99 kΩ

Display range	Resolution	Accuracy
0,00 – 9,99 Ω	0,01 Ω	±(2% m.v. + 4 digits)
10,0 – 99,9 Ω	0,1 Ω	±(2% m.v. + 4 digits)
100 – 999 Ω	1 Ω	±(2% m.v. + 4 digits)
1,00 – 1,99 kΩ	0,01 kΩ	±(2% m.v. + 4 digits)

• Measurement with additional current clamp
• Interference current measuring range: up to 9,99 A

Selective earth measurement with two clamps

Display range	Resolution	Accuracy
0,00 – 9,99 Ω	0,01 Ω	±(10% m.v. + 4 digits)
10,0 – 19,9 Ω	0,1 Ω	±(10% m.v. + 4 digits)
20,0 – 99,9 Ω	0,1 Ω	±(20% m.v. + 4 digits)

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

Soil resistivity measurement (ρ)

Display range	Resolution	Accuracy
0,00 – 99,9 Ωm	0,1 Ωm	Depending on the accuracy of RE measurement
100 – 999 Ωm	1 Ωm	Depending on the accuracy of RE measurement
1,00 – 9,99 Ωm	0,01 kΩm	Depending on the accuracy of RE measurement
10,0 – 99,9 kΩm	0,1 kΩm	Depending on the accuracy of RE measurement

• Measurement with Wenner’s method
• Distance settable in meters or feet
• Distance range: 1 – 30 m (1 – 90 feet)

Phase sequence indication

Measurements of RCD parameters(voltage range 95 – 270 V):

RCD tripping test and measurement of tripping time t_A(for t_A measurement function)

RCD type	Current	Range	Resolution	Accuracy
General and short-time delay	0,5*IΔn	0 – 300 ms	1 ms	±(2% m.v. + 2 digits) (for RCD with IΔn = 10 mA and 0,5xIΔn uncertainty: ±(2% m.v. +3 digits)
General and short-time delay	1*IΔn	0 – 300 ms	1 ms	±(2% m.v. + 2 digits) (for RCD with IΔn = 10 mA and 0,5xIΔn uncertainty: ±(2% m.v. +3 digits)
General and short-time delay	2*IΔn	0 – 150 ms	1 ms	±(2% m.v. + 2 digits) (for RCD with IΔn = 10 mA and 0,5xIΔn uncertainty: ±(2% m.v. +3 digits)
General and short-time delay	5*IΔn	0 – 40 ms	1 ms	±(2% m.v. + 2 digits) (for RCD with IΔn = 10 mA and 0,5xIΔn uncertainty: ±(2% m.v. +3 digits)
Selective	0,5*IΔn	0 – 500 ms	1 ms	±(2% m.v. + 2 digits) (for RCD with IΔn = 10 mA and 0,5xIΔn uncertainty: ±(2% m.v. +3 digits)
Selective	1*IΔn	0 – 200 ms	1 ms	±(2% m.v. + 2 digits) (for RCD with IΔn = 10 mA and 0,5xIΔn uncertainty: ±(2% m.v. +3 digits)
Selective	2*IΔn	0 – 200 ms	1 ms	±(2% m.v. + 2 digits) (for RCD with IΔn = 10 mA and 0,5xIΔn uncertainty: ±(2% m.v. +3 digits)
Selective	5*IΔn	0 – 150 ms	1 ms	±(2% m.v. + 2 digits) (for RCD with IΔn = 10 mA and 0,5xIΔn uncertainty: ±(2% m.v. +3 digits)

• Accuracy of residual current application: for 0,5*I_Δn:-8 – 0% | for 1*I_Δn | 2*I_Δn | 5*I_Δn: 0 – 8%

Measurement of RCD tripping current IΔnfor sinusoidal residual current (AC type)

Rated current	Meas. range	Resolution	Test current	Accuracy
10 mA	3,3 – 10,0 mA	0,1 mA	0,3 x IΔn – 1,0 x IΔn	± 5% IΔn
30 mA	9,0 – 30,0 mA	0,1 mA	0,3 x IΔn – 1,0 x IΔn	± 5% IΔn
100 mA	33 – 100 mA	1 mA	0,3 x IΔn – 1,0 x IΔn	± 5% IΔn
300 mA	90 – 300 mA	1 mA	0,3 x IΔn – 1,0 x IΔn	± 5% IΔn
500 mA	150 – 500 mA	1 mA	0,3 x IΔn – 1,0 x IΔn	± 5% IΔn
1000 mA	330 – 1000 mA	1 mA	0,3 x IΔn – 1,0 x IΔn	± 5% IΔn

• The measurement can be started from a positive or negative half-period of forced leakage current

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

Rated current	Meas. range	Resolution	Test current	Accuracy
10 mA	3,5 – 20,0 mA	0,1 mA	0,35 x IΔn – 2,0 x IΔn	±10%IΔn
30 mA	10,5 – 42,0 mA	0,1 mA	0,35 x IΔn – 1,4 x IΔn	±10%IΔn
100 mA	35,0 – 140 mA	1 mA	0,35 x IΔn – 1,4 x IΔn	±10%IΔn
300 mA	105 – 420 mA	1 mA	0,35 x IΔn – 1,4 x IΔn	±10%IΔn
500 mA	175 – 700 mA	1 mA	0,35 x IΔn – 1,4 x IΔn	±10%IΔn

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

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

Rated current	Meas. range	Resolution	Test current	Accuracy
10 mA	2,0 – 20,0 mA	0,1 mA	0,2 x IΔn – 2,0 x IΔn	± 10% IΔn
30 mA	6 – 60 mA	1 mA	0,2 x IΔn – 2,0 x IΔn	± 10% IΔn
100 mA	20 – 200 mA	1 mA	0,2 x IΔn – 2,0 x IΔn	± 10% IΔn
300 mA	60 – 600 mA	1 mA	0,2 x IΔn – 2,0 x IΔn	± 10% IΔn
500 mA	100 – 1000 mA	1 mA	0,2 x IΔn – 2,0 x IΔn	± 10% IΔn

• Measurement for positive or negative half-periods of forced leakage current
• I_Δn– rated residual current

Insulation resistance measurements

Measuring range acc. to IEC 61557-2:

• For U_N= 50 V: 50 kΩ- 250 MΩ
• U_N= 100 V: 100 kΩ – 500 MΩ
• U_N= 250 V: 250 kΩ – 999 MΩ
• For U_N= 500 V: 500 kΩ – 2 GΩ
• For U_N= 1000 V: 1,000 MΩ – 9,99 GΩ

Display range *	Resolution	Accuracy
0,00 – 1999 kΩ	1 kΩ	±(3% m.v. + 8 digits)
2,00 – 19,99 MΩ	0,01 MΩ	±(3% m.v. + 8 digits)
20,0 – 199,9 MΩ	0,01 MΩ	±(3% m.v. + 8 digits)
200 – 999 MΩ	1 MΩ	±(3% m.v. + 8 digits)
1,00 – 9,99 GΩ	0,01 GΩ	±(4% m.v. + 6 digits)

*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, IEC 61557-4: 0,12 – 400 Ω

Display range	Resolution	Accuracy
0,00 – 19,99 Ω	0,01 Ω	±(2% m.v. + 3 digits)
20,0 – 199,9 Ω	0,1 Ω	±(2% m.v. + 3 digits)
200 – 400 Ω	1 Ω	±(2% m.v. + 3 digits)

• 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

Display range	Resolution	Accuracy
0,1 – 99,9 lx	0,1 lx	±(5% m.v. + 2 digits)
100 – 999 lx	1 lx	±(5% m.v. + 2 digits)
1,00 – 9,99 klx	0,01 klx	±(5% m.v. + 2 digits)
10,0 – 19,9 klx	0,1 klx	±(5% m.v. + 2 digits)

Measurement in luxes (lx) or feet-candles (fc)

ANALYSIS AND R_ECORDING OF SINGLE-PHASE SYSTEM

• Voltage measurement ULN: 0 – 500 V
• Frequency range of measured voltages: 45,0 – 65,0 Hz
• Frequency measurement range for 50 – 500 V voltages: 45,0 – 65,0 Hz (basic uncertainty max. ± 0,1% m.v. + 1 digit)
• cosφ measurement: 0,00 – 1,00 (resolution 0,01)
• Measurement and recording in single-phase system

Current measurement (True RMS)

Clamps	Range	Resolution	Accuracy*
C-3, C-6	0,0 – 99,9 mA	0,1 mA	±(5% m.v. + 3 digits)
C-3, C-6	100 – 999 mA	1 mA	±(5% m.v. + 3 digits)
C-3,C-6 F-1, F-2, F-3	1,00 – 9,99 A	0,01 A	±(5% m.v. + 5 digits) (C-3, C-6) ±(0,1% In + 2 digits) (F-1, F-2, F-3)
C-3,C-6 F-1, F-2, F-3	10,0 – 99,9 A	0,1 A	±(5% m.v. + 5 digits) (C-3, C-6) ±(0,1% In + 2 digits) (F-1, F-2, F-3)
C-3,C-6 F-1, F-2, F-3	100 – 999 A	1 A	±(5% m.v. + 5 digits) (C-3, C-6) ±(0,1% In + 2 digits) (F-1, F-2, F-3)
F-1, F-2, F-3	1,00 – 3,00 kA	0,01 kA	±(5% m.v. + 5 digits) (C-3, C-6) ±(0,1% In + 2 digits) (F-1, F-2, F-3)

*the accuracy of the current clamps must also be taken into account

Measurement of active power P, reactive power Q, apparent power S and cosφ

Range [W], [VA], [var]	Resolution [W], [VA], [var]	Accuracy*
0 – 999	1	±(7% m.v. + 3 digits)
1,00 – 9,99 k	0,01 k	±(7% m.v. + 3 digits)
10,0 – 99,9 k	0,1 k	±(7% m.v. + 5 digits)
100 – 999 k	1 k	±(7% m.v. + 5 digits)
1,00 – 1,50 M	0,01 M	±(7% m.v. + 5 digits)

• Voltage range: 0 – 500 V
• Current range: 0 – 1000 A (3000A)
• Mains rated frequency fn : 50Hz | 60 Hz

Voltage harmonics measurement

Range	Resolution	Nr harm.	Accuracy
0,0 – 500 V	0,1 (1*) V	1,2 – 15	±(5% m.v. + 3 digits)
0,0 – 500 V	0,1 (1*) V	16 – 40	±(5% m.v. + 10 digits)

• In addition display of h02 – h40 vales as a percent of h01 (up to 999%)

*) from 300V – 500V

THD (in relation to the 1 st harmonics)

		Resolution	Accuracy
THD-F voltage (h = 2 – 40)	0,0 – 999,9% for URMS ≥ 1% Unom	0,1%	±5%
THD-F current (h = 2 – 40)	0,0 – 999,9% for IRMS ≥ 1% Inom	0,1%	±5%

“m.v.” means measured value

The instruments conforms to:

• EN 61010 – 1 (general safety requirements)
• EN 61010 – 031 (detailed safety requirements)
• IEC 60364 – 6-61 / HD 60364 – 6 (measurements – verification)
• EN 61326 (electromagnetic compatibility)
• EN 61557 – 10 (requirements for combined instruments)
• IEC 60364 – 4-41 / HD 60364 – 4-41 (measurements – protection against electric shock)
• EN 04700 (measurements – acceptance tests)
• EN 12464 (lighting of workplaces)
• DIN VDE 0100
• DIN VDE 0413
• BS 7671

Calibration certificates are issued during the production process. New calibration certificates are available upon request at an additional cost.