| Insulation Resistance Measurement |
| Test voltage (DC) |
| 250 V |
Range |
< 250 kΩ, 250 kΩ to 5 GΩ 5 GΩ to 50 GΩ > 50 GΩ |
| Accuracy (± reading) |
Unspecified 5% 20% Unspecified |
| 500 V |
Range |
< 500 kΩ 500 kΩ to 10 GΩ 10 GΩ to 100 GΩ > 100 GΩ |
| Accuracy (± reading) |
Unspecified 5% 20% Unspecified |
| 1000 V |
Range |
< 1 MΩ 1 MΩ to 20 GΩ 20 GΩ to 200 GΩ > 200 GΩ |
| Accuracy (± reading) |
Unspecified 5% 20% Unspecified |
| 2500 V |
Range |
< 2.5 MΩ 2.5 MΩ to 50 GΩ 50 GΩ to 500 GΩ > 500 GΩ |
| Accuracy (± reading) |
Unspecified 5% 20% Unspecified |
| 5000 V |
Range |
< 5 MΩ 5 MΩ to 100 GΩ 100 GΩ to 1 TΩ > 1 TΩ |
| Accuracy (± reading) |
Unspecified 5% 20% Unspecified |
| Bar graph range |
0 to 1 TΩ (1550C) - 0 to 2 TΩ (1555) |
| Insulation test voltage accuracy |
-0%, +10% at 1 mA load current |
| Induced AC mains current rejection |
2 mA maximum |
| Charging rate for capacitive load |
5 seconds per μF |
| Discharge rate for capacitive load |
1.5 s/μF |
| Leakage current measurement |
Range |
1 nA to 2 mA |
| Accuracy |
± (5% + 2 nA) |
| Capacitance measurement |
Range |
0.01 μF to 15.00 μF |
| Accuracy |
± (15% rdg + 0.03 μF) |
| Timer |
Range |
0 to 99 minutes |
| Resolution setting |
1 minute |
| Resolution indication |
1 second |
| Live circuit warning |
Warning range |
30 V to 660 V AC/DC, 50/60 Hz |
| Voltage accuracy |
± (15% + 2 V) |
| Software specifications |
FlukeView Forms™ basic software requires a PC running Windows XP, Windows Vista , Windows 7 or Windows 8. |
| General Specifications |
| Display |
75 x 105 mm |
| Power |
12 V lead-acid rechargeable battery, Yuasa NP2.8-12 |
| Charger Input (AC) |
85 V to 250 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 |
269 x 277 x 160 mm (10.6 x 10.9 x 6.3 in) |
| Weight |
3.7 kg (8.2 lb) |
| Temperature (operating) |
-20°C to 50°C (-4°F to 122°F) |
| Temperature (storage) |
-20°C to 65°C (-4°F to 149°F) |
| Humidity |
80% to 31°C decreasing linearly to 50% at 50°C |
| Altitude |
2000 m |
| Enclosure sealing |
IP40 |
| Input overload protection |
1000 V AC |
| Electromagnetic compatibility |
EN 61326 |
| Safety compliance |
IEC 61010-1: Overvoltage category II, Pollution Degree 2. IEC 61010-2-030: Measurement 600V CAT IV / 1000V CAT III IEC 61557-1, IEC 61557-2 |