Multifunction electrical Installations Meter AMPI-525

Possible measurements:

Short-circuit loop measurement:
Impedance measurement with 23A (44A phase-to-phase) short-circuit resistor RZW =10Ω
Measurement range: 95...440V, frequency 45...65Hz
Short - circuit loop measurement with resolution 0,01Ω, in distribution network without triggering RCD (I∆n ≥30mA):
Automatic calculation of short-circuit, detection of phase 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
UNI-Schuko plug for insulation measurement
Automatic discharging after measurement
automatic measurement of all resistances 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
Phase sequence
Phase sequence indicator: forward, reverse
Mains voltage range UL-L : 100...440V (45…65Hz)
Display of pase-to-phase voltages

Low voltage test of the circuit and insulation continuity

Test of PE wire continuity using a ±200mA current
Range	Resolution	Accuracy
0,00...19,99Ω	0,01Ω	±(2% m.v. + 3 digits)
20,0...199,9Ω	0,1Ω
200...400Ω	1Ω
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 tA (for tA mode)

Measurement ranges in acc. with IEC61557: 0ms ... up to the upper bound of the displayed value
Breaker Type	Test Current Multiplier	Measurement Range	Resolution	Accuracy

Standard	0,5*I∆n	0...300ms	1ms	±(2% m.v. + 2 digits)
	1* I∆n
	2* I∆n	0...150ms
	5*I∆n	0...40ms
Selective	0,5*I∆n	0...500ms
	1* I∆n
	2* I∆n	0...200ms
	5*I∆n	0...150ms
Precision of the differential current: for 0,5I∆n :-8...0%; para 1 I∆n,2* I∆n,5*I∆n : 0...8%

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


Selected Current	Range	Resolution	Test Current	Accuracy

10mA	3,3...10,0mA	0,1mA	0,3I∆n…1I∆n	±5% I∆n
30mA	9,0...30,0mA
100mA	33...100mA	1mA
300mA	90...300mA
500mA	150...500mA
1000mA	330...1000mA
It is possible to start the measurement from the positive or negative half of the forced leaking current

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


Selected Current	Range	Resolution	Test Current	Accuracy

10mA	4,0...20,0mA	0,1mA	0,4I∆n…2I∆n	±10% I∆n
30mA	12,0...42,0mA
100mA	40...140mA	1mA	0,4I∆n…1,4I∆n
300mA	120...420mA
500mA	200...700mA
A measurement is possible for a positive or negative forced leakage current

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

Selected Current	Range	Resolution	Test Current	Accuracy

10mA	4,0...20,0mA	0,1mA	0,4I∆n…2I∆n	±10% I∆n
30mA	12,0...60,0mA	1mA
100mA	40...200mA
300mA	120...600mA
500mA	200...1000mA
A measurement is possible for a positive or negative forced leakage current

“m.v.” – measured value

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)

Range	Resolution	Accuracy
0,00...19,99Ω	0,01Ω	±(5% m.v. + 3 digits)
20,0...199,9Ω	0,1Ω
200...1999Ω	1Ω
Rated voltage: 95...270V (for Z L-PE y Z L-N ) and 95...440V (for Z L-L )
Frequency:: 45...65Hz

Short-circuit loop impedance measurementZ L-PE RCD

Measurement using 15mA current measurement range in accordance with IEC 61557: 0,50...1999,9Ω

Range	Resolution	Accuracy
0,00...19,99Ω	0,01Ω	±(6% m.v. + 10 digits)
20,0...199,9Ω	0,1Ω	±(6% m.v. + 5 digits)
200...1999Ω	1Ω
Rated voltage: 95...270V
Frequency:: 45...65Hz

Measurement of earthing RE
Measurement of earthing RE
Rated voltage in accordance with IEC 61557-5: 0,5...1999Ω
Range	Resolution	Accuracy
0,00...9,99Ω	0,01Ω	±(2% m.v. + 4 digits)
10,0...99,9Ω	0,1Ω	±(2% m.v. + 3 digits)
100...999Ω	1Ω
1,00...1,99kΩ	10Ω

Insulation resistance measurement

Measurement range in accordance with IEC 61557-2:
-UN=50V: 50kΩ…250MΩ		-UN=500V: 500kΩ…2GΩ
-UN=100V: 100kΩ…500MΩ		-UN=1000V: 1MΩ…3GΩ
-UN=250V: 250kΩ…1GΩ		-UN=2500V: 2,5MΩ…9,99GΩ
Range	Resolution		Accuracy
0...1999kΩ	1kΩ		±(3% m.v. + 8 digits)
2,00...19,99MΩ	0,01MΩ
20,0...199,9MΩ	0,1MΩ
200...999MΩ	1MΩ
1,00...3,00GΩ	0,01GΩ		±(4% m.v. + 6 digits)
1,00...9,99GΩ	0,1GΩ
With UNI-Schuko additional error ±2%.

AMPI-525 Specifications
Electric security:
Type of insulation	Double, according to EN 61010-1 and IEC 61557, EMC
Measurement category	CAT IV 300V acc. to EN 61010-1
Protection class acc. to EN 60529	IP54
Other technical data:

Power supply	alkaline batteries LR14 (4 szt.) or battery package Ni-MH (additional option)

Rated operational conditions:

Operation temperature	0...+50°C

Standard accesories:

Optional accesories:

Do not hesitate to contact us, call us today by phone (+34) 982 20 99 20. We are happy to help you.