Product Overview: Fluke 1555 Insulation Resistance Tester
Fluke 1555 Insulation Resistance Tester
- Test voltages up to 10 kV provides solutions for all applications
- CAT III 1000 V, CAT IV 600 V safety rating
- Voltage breakdown detection alerts the user that voltage is present and gives the voltage reading up to 600 V ac or dc for increased user safety
- Selectable test voltages in 50 V steps from 250 to 1000 V, and 100 V steps above 1000 V
- Measurements can be stored in up to 99 memory locations, with each location assigned a unique, user defined, label for easy recall
- Long battery life gives the user over 750 tests between charges
- Automatic calculation of Dielectric Absorption (DAR) and Polarization Index (PI) with no additional setup
- Guard system eliminates the effect of surface leakage current on high-resistance measurements
- Large digital/analog LCD for easy viewing
- Capacitance and leakage current measurement
- Ramp function for breakdown testing
- Resistance measurements up to 2TΩ
- Timer settings up to 99 minutes for timed tests
- 3-year warranty
Fluke 1555 Insulation Resistance Tester
measurement |
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Test voltage (dc) |
Range (dc) |
Accuracy (± reading) |
| 250 V | < 200 kΩ 200 kΩ to 5 GΩ 5 GΩ to 50 GΩ > 50 GΩ |
unspecified 5 % 20 % unspecified |
| 500 V | 200 kΩ 200 kΩ to 10 GΩ 10 GΩ to 100 GΩ > 100 GΩ |
unspecified 5 % 20 % unspecified |
| 1000 V | < 200 kΩ 200 kΩ to 20 GΩ 20 GΩ to 200 GΩ > 200 GΩ |
unspecified 5 % 20 % unspecified |
| 2500 V | < 200 kΩ 200 kΩ to 50 GΩ 50 GΩ to 500 GΩ > 500 GΩ |
unspecified 5 % 20 % unspecified |
| 5000 V | < 200 kΩ 200 kΩ to 100 GΩ 100 GΩ to 1 TΩ > 1 TΩ |
unspecified 5 % 20 % unspecified |
| 10000 V | < 200 kΩ 200 kΩ to 200 GΩ 10 GΩ to 2 TΩ > 2 TΩ |
unspecified 5 % 20 % unspecified |
| Bar graph range | 0 to 1 TΩ | |
| Insulation test voltage accuracy | -0 %, +10 % at 1 mA load current | |
| Induced ac mains current rejection | 2 mA maximum | |
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Charging rate for capacitive load |
5 seconds per μF |
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Discharge rate for capacitive load |
1.5 s/μF |
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Leakage current measurement |
Range: 1 nA to 2 mA |
Accuracy: ± (5 % + 2 nA) |
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Capacitance measurement |
Range: 0.01 uF to 15.00 μF |
Accuracy: ± (15 % rdg + 0.03 μF) |
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Timer |
Range: 0 to 99 minutes |
Resolution Accuracy: |
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Live circuit warning |
Warning Range: |
Voltage Accuracy: |
General specifications |
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| Display | 75 mm x 105 mm |
| Power | 12 V lead-acid rechargeable battery, Yuasa NP2.8-12 |
| Charger Input (AC) | 85 V ac 50/60 Hz 20 VA |
| This Class II (double insulated) instrument is supplied with a Class 1 (grounded) power cord. The protective earth terminal (ground pin) is not connected internally. The extra pin is for added plug retention only. | |
| Dimensions | 170 mm x 242 mm x 330 mm (6.7 in x 9.5 in x 13 in) |
| Weight | 3.6 kg (7.94 lb) |
| Temperature (operating) | -20 ºC to 50 ºC (-4 ºF to 122 ºF) |
| Temperature (storage) | -20 ºC to 65 ºC (-4 ºF to 149 ºF) |
| Humidity | 80 % to 31 ºC decreasing linearly to 50 % at 50 ºC |
| Altitude | 2000 m |
| Enclosure sealing | IP40 |
| Input overload protection | 1000 V ac |
| Electromagnetic compatibility | EN 61326 |
| Certifications |    |
| Safety compliance | CAT III 1000 V, CAT IV 600 V |
| Polution degree | 2 |
See more 5000V Megohmmeter Testers here.
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