It has the following characteristics:
- Short circuit loop measurement:
- Impedance measurement with 23 A (44 A phase-to-phase), short circuit resistance RZW =10Ω
- Measuring range: 95...440V, frequency 45...65 Hz
- Short circuit loop measurement with resolution 0,01 Ω , without tripping the differential protections (I∆n ≥30mA)
- Automatic short-circuit calculation, phase-neutral and phase-phase voltage detection
- UNI-Schuko plug connection for automatic measurement, AGT adapter for measurements in three-phase networks
- Testing of differential, general and selective protection for 10, 30, 100, 300, 500 and 1000 mA differential current
- Measurement of the insulation resistance:
- With application of the test voltages: 250 V, 500 V, 1000 V, 2500 V
- Average range up to 10GΩ
- UNI-Schuko plug connection for insulation measurement
- Automatic download after measurement
- Automatic measurement of all resistances on 3, 4 or 5-wire cables using the optional AUTO-ISO adapter
- Acoustic signals at 5 s intervals to obtain the insulation characteristic curve
- Surge safety protection
- Measurement of earth resistance
- Bidirectional continuity test on PE cables using 200 mA
- Self-calibration of test cables.
- Phase sequence check
- Battery charge indication
- Auto shut-off function
- USB Interface
- Phase sequence:
- Phase sequence display: advance, delay
- Supply voltage range UL-L : 100...440V (45...65Hz)
- Display of phase-to-phase voltages
Low voltage and insulation continuity test | ||
Check the PE cable using a current of ±200 | ||
Range | Resolution | Accuracy |
0,00...19,99Ω | 0,01Ω | ±(2% v.m. + 3 digits) |
20,0...199,9Ω | 0,1Ω | |
200...400Ω | 1Ω | |
Voltage at open terminals: 4...9 V | ||
Test current at R<2Ω: minimum 200mA at nominal battery voltage | ||
Self-calibration of test cables | ||
Two-way measurement | ||
Differential protection trip and response time test tA (for mode tA ) | ||||
IEC61557 measurement range: 0ms ... up to the upper limit of the displayed value | ||||
Type of switch | Adjustment of the multiplication factor | Range measuring | Resolution | Accuracy |
of the type general | 0.5*I∆n | 0...300ms | 1ms | ±(2% v.m. + 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 | |||
Differential current accuracy for 0.5*I∆n :-8...0%; for 1* I∆n,2* I∆n,5*I∆n : 0...8% | ||||
Measurement of the current threshold of the differential protection (IA) for sine-wave test current | ||||
Selected switch rated current | Range | Resolution | Measuring current | Accuracy |
10mA | 3,3...10,0mA | 0.1mA | 0.3*I∆n...1*I∆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 leakage current | ||||
Measurement of the current threshold of the differential protection for a unidirectional half period of sinusoidal waveform with a DC current offset of 6mA | ||||
Selected switch rated current | Range | Resolution | Measuring current | Accuracy |
10mA | 4.0...20.0mA | 0.1mA | 0.4*I∆n...2*I∆n | ±10% I∆n |
30mA | 12.0...42.0mA | |||
100mA | 40...140mA | 1mA | 0.4*I∆n...1.4*I∆n | |
300mA | 120...420mA | |||
500mA | 200...700mA | |||
Measurement for positive or negative leakage current is possible | ||||
Measurement of the current threshold of the differential protection (IA ) for DC continuous test | ||||
Selected switch rated current | Range | Resolution | Measuring current | Accuracy |
10mA | 4.0...20.0mA | 0.1mA | 0.4*I∆n...2*I∆n | ±10% I∆n |
30mA | 12.0...60.0mA | 1mA | ||
100mA | 40...200mA | |||
300mA | 120...600mA | |||
500mA | 200...1000mA | |||
Measurement for positive or negative leakage current is possible | ||||
"v.m." - measured value | ||||
Measurement of short circuit impedance Z L-PE , Z L-N , Z L-L | ||
Measurement using the current range 23/40 A according to IEC 61557: 0.13...1999,9Ω (for 1.2m cables) | ||
Range | Resolution | Accuracy |
0,00...19,99Ω | 0,01Ω | ±(5% v.m. + 3 digits) |
20,0...199,9Ω | 0,1Ω | |
200...1999Ω | 1Ω | |
Voltage range: 95...270V (for Z L-PE and Z L-N ) and 95...440V (for Z L-L ) | ||
Frequency: 45...65Hz | ||
Measurement of short circuit loop impedance Z L-PE RCD | ||
Measured using 15 mA current range according to IEC 61557: 0.50...1999,9Ω | ||
Range | Resolution | Accuracy |
0,00...19,99Ω | 0,01Ω | ±(6% v.m. + 10 digits) |
20,0...199,9Ω | 0,1Ω | ±(6% v.m. + 5 digits) |
200...1999Ω | 1Ω | |
Voltage range: 95...270V | ||
Frequency: 45...65Hz | ||
Earthing resistance measurement RE | ||
Voltage range according to IEC 61557-5: 0.5...1999Ω | ||
Range | Resolution | Accuracy |
0,00...9,99Ω | 0,01Ω | ±(2% v.m. + 4 digits) |
10,0...99,9Ω | 0,1Ω | ±(2% v.m. + 3 digits) |
100...999Ω | 1Ω | |
1.00...1,99kΩ | 10Ω | |
Insulation resistance measurement | |||
Measured according to IEC 61557-2: | |||
-UN=50V: 50kΩ...250MΩ | -UN=500V: 500kΩ...2GΩ | ||
-UN=100V: 100kΩ...500MΩ | -UN=1000V: 3GΩ...1MΩ | ||
-UN=250V: 250kΩ...1GΩ | -UN=2500V: 2,99GΩ...9,5MΩ | ||
Range | Resolution | Accuracy | |
0...1999kΩ | 1kΩ | ±(3% v.m. + 8 digits) | |
2,00...19,99MΩ | 0,01MΩ | ||
20.0...199,9MΩ | 0,1MΩ | ||
200...999MΩ | 1MΩ | ||
1,00...3,00GΩ | 0,01GΩ | ±(4% v.m. + 6 digits) | |
1,00...9,99GΩ | 0,1GΩ | ||
With UNI-Schuko connection additional error ±2%. | |||
Detailed features of the AMPI-525 | |
Electrical safety: | |
Type of insulation | Double, according to EN 61010-1 and IEC 61557, EMC |
Measurement category | CAT IV 300V according to EN 61010-1 |
Protection class, according to EN 60529 | IP54 |
Other technical data: | |
Food | LR14 alkaline batteries (4 pcs.) or Ni-MH battery set (option) |
Nominal conditions of use: | |
operating temperature range | 0...+50°C |
Standard accessories:
- SCHUKO probe with power button (WS-03)
- Test cable with banana plug, 1.2 m yellow
- Test cable with banana plug, 1.2 m blue
- Test cable with banana plug, 1.2 m red
- Test cable reel with banana plug, 30 m, red
- Test cable reel with banana plug, 15 m, blue
- USB cable
- Pointed probe with banana connection, yellow
- Pointed probe with banana connection, red
- Pointed probe with banana connection, blue
- Alligator clip K02 red
- Alligator clip K02 yellow
- Ground contact javelin, 0.3m
- Transport box L2
- Shielded cable with banana plug; 1.8 m; 5kV; black
- Pointed probe; 5kV; with banana terminal, red
- Alligator clip K04; 5kV, black
- Test cable with banana plug; 1.8 m; 5kV; red
- Straps
- LR14 battery box and batteries (C)
- Batteries
- Calibration certificate
Optional accessories:
- Reeled test cable with banana terminal;
- 50m; yellow
- Reeled test cable with banana terminal;
- 25m; blue
- Interface for radio transmission OR-1
- Test cable with banana plug, 20 m red
- Battery charger cable
- Car lighter compatible battery charger cable (12V)
- AGT-16P three-phase plug adapter
- AGT-32P three-phase plug adapter
- AGT-63P three-phase plug adapter
- AUTO-ISO-2500 Adapter
- Adapter TWR-1 (universal connection) for testing differential switches
- Probe with UNI-SCHUKO (WS-04)
- Grounding javelin 0.8 m
- Software for creating documentation of electrical measurements
- Software for the creation of drawings and diagrams
Download the catalogue of AMPI-525 Multifunction Meter for Electrical Installations.
If you want to acquire Multifunction meters for electrical installations with quality, you can also consult prices of Multifunction meters for electrical installations.
If you have any doubts or need advice from our engineers, don't hesitate to contact us and we will be pleased to help you. You can also call us at (+34) 982 20 99 20.