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INSULATION RESISTANCE MEASUREMENT UP TO 2 TΩ IN ACCORDANCE WITH IEC 61557 – 2
FULL CAPTURE AND RECORDING OF MEASUREMENT CONDITIONS
of the data from memory to a PC
– ADDITIONALLY ORDER THE WIRELESS USB INTERFACE!
Insulation resistance measurement:
- selectable measurement voltage 100, 250, 500, 1000 V or any in the range of 50 – 2500 V at 10 V resolution,
- continuous indication of measured insulation resistance or leakage current,
- automatic discharge of measured object capacitive voltage after the completion of insulation resistance measurement,
- acoustic signaling of 5 seconds intervals to facilitate capturing time characteristics,
- metered T1, T2 and T3 test times from the range of 1…600 s for measuring one or two absorption coefficients (DAR, PI or Ab1, Ab2),
- capability of automatic measurement of multi-wire cables with the additional AutoISO-2500 adapter,
- indication of actual test voltage during measurement,
- protection against measuring live objects.
Continuity measurement of protective connections and equipotential bonding in accordance with EN 61557 – 4 with current > 200 mA.
Circuit continuity and resistance measurement at low voltage.
- circuit resistance measurement ( < 999 ) with current < 15 mA,
- quick acoustic signaling for a circuit of resistance lower than 10,
- compensation (automatic zero) of test lead resistance.
Measurement of leakage current during insulation resistance testing.
Measurement of capacity during the measurement of RISO.
Continuous measurement of surrounding temperature with the capability of recording results in memory.
DC and AC voltage measurement in the range of 0-600 V.
990 cells of memory (11880 records) with the capability of wireless data transmission to a PC (with the USB-OR-1 adapter) or through a USB cable.
Electrical safety:
- type of insulation: double, in acc. with EN 61010 – 1 and IEC 61557
- measurement category: IV 600 V (III 1000 V) in acc. with EN 61010 – 1
- case protection rating in acc. with EN 60529: IP54
Other technical specifications:
- power supply of the meter: SONEL L-1 NiMH 9.6 V battery pack
- weight of the meter: approx. 1,3 kg
- dimensions: 260 x 190 x 60 mm
- display: LCD segment display
- measurement results memory: 990 cells, 11880 records
- transmission of measurement results: USB or wireless interface
Insulation resistance measurement (two-lead)
Measurement range acc. to IEC 61557 – 2 for RISOmin=UISOnom/IISOmax…2 TΩ (IISOmax=1 mA)
| Range | Resolution | Accuracy |
| 0,0…999,9 kΩ | 0,1 kΩ | ±(3% m.v. + 20 digits) |
| 1,000…9,999 MΩ | 0,001 MΩ | |
| 10,00…99,99 MΩ | 0,01 MΩ | |
| 100,0…999,9 MΩ | 0,1 MΩ | |
| 1,000…9,999 GΩ | 0,001 GΩ | |
| 10,00…99,99 GΩ | 0,01 GΩ | |
| 100,0…999,9 GΩ | 0,1 GΩ | |
| 1,000…2,000 TΩ | 0,001 TΩ |
Values of measured resistance depending on measurement voltage
| Voltage UISO | Measurement range |
| 50 V | 50 GΩ |
| 100 V | 100 GΩ |
| 250 V | 250 GΩ |
| 500 V | 500 GΩ |
| 1000 V | 1,00 TΩ |
| 2500 V | 2,00 TΩ |
Measurement of insulation resistance with the AutoISO-2500 adapter
| Range | Resolution | Accuracy |
| 0,0…999.9 kΩ | 0,1 Ω | ±(3% m.v. + 20 digits) of the meter + max 1% of AutoISO-2500 uncertainty |
| 1,000…9.999 MΩ | 0,001 MΩ | |
| 10,00…99,99 MΩ | 0,01 MΩ | |
| 100,0…999,9 MΩ | 0,1 MΩ | |
| 1,000…9,999 GΩ | 0,001 GΩ | |
| 10,00…99,99 GΩ | 0,01 GΩ | |
| 100,0…400,0 GΩ | 0,1 GΩ | ±(3% m.v. + 20 digits) of the meter + max 5% of AutoISO-2500 uncertainty |
Values of measured resistance depending on measurement voltage
| Voltage UISO | Measurement range |
| 100 V | 100 GΩ |
| 250 V | 250 GΩ |
| 500 V, 1000 V, 2500 V | 400 GΩ |
Continuity measurement of protective connections and equipotential bonding with 200 mA current
Measurement range acc. to EN 61557 – 4: 0.10…999 Ω
| Range | Resolution | Accuracy |
| 0,00…19,99 Ω | 0,01 Ω | ±(2% m.v. + 3 digits) |
| 20,0…199,9 Ω | 0,1 Ω | |
| 200…999 Ω | 1 Ω | ±(4% m.v. + 3 digits) |
- Voltage on open terminals: 8…16 V
- Output current at R <2 Ω: ISC >200 mA
- Compensation of test lead resistance
- Current flowing in both directions, mean value of resistance is displayed
Resistance measurement with low current
| Range | Resolution | Accuracy |
| 0,0…199,9 Ω | 0,1 Ω | ±(2% m.v. + 3 digits) |
| 200…999 Ω | 1 Ω | ±(4% m.v. + 4 digits) |
- Voltage on open terminals: 8…16 V
- Output current > 10 mA
- Acoustic signal for measured < 10 Ω ± 10%
- Compensation of test lead resistance
Capacity measurement
| Display range | Resolution | Accuracy |
| 1…999 nF | 1 nF | ±(5% m.v. + 10 digits) |
| 1,00…9,99µF | 0,01µF |
- Capacity measurement result is displayed after the RISO measurement
Temperature measurement
| Range | Resolution | Accuracy |
| -40,0…99,9°C | 0,1°C | ±(3% m.v. + 8 digits) |
| -40,0…221,8°F | 0,1°F | ±(3% m.v. + 16 digits) |
- measurement with the use of an external probe
DC and AC voltage measurement
| Range | Resolution | Accuracy |
| 0…600 V | 1 V | ±(3% m.v. + 2 digits) |
Frequency range : 45…65 Hz
