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Fluke 1550B MegOhmMeter
| Electrical Specifications |
| Insulation Resistance Measurement |
| Test Voltage (dc) |
Range |
Accuracy
(± reading) |
| 250 V |
200 kW to 5 GW
5 GW to 50 GW |
5 %
20 % |
| 500 V |
200 kΩ to 10 GΩ
10 GΩ to 100 GΩ |
5 %
20 % |
| 1000 V |
200 kW to 20 GW
20 GW to 200 GW |
5 %
20 % |
| 2500 V |
200 kW to 50 GW
50 GW to 500 GW |
5 %
20 % |
| 5000 V |
200 kW to 100 GW
100 GW to 1 TW |
5 %
20 % |
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| Short circuit current |
Greater than 1 mA and less than 2 mA |
| Bar graph range |
0 to 1 TW |
| Insulation test voltage accuracy |
-0 % to + 10 % at 1 mA load current |
| Induced ac mains current rejection |
2 mA maximum |
| Charging rate for capacitive load |
5 seconds per µF |
| Leakage current |
Range: 1 nA to 2 mA
Accuracy: ±(5 % + 2 nA) |
Capacitance
measurement |
Range: 0.01 µF t 15.00 µF
Accuracy: ± (15 % rdg + 0.03 µF) |
| Live circuit Indicator |
Range: 30 V to 600 V ac/dc, 50/60 Hz
Accuracy: ± (5 % + 2 V) |
| Timer |
0 to 99 minutes; settable in 1 minute increments; indicated to within 1 second |
| Ramp |
0 % to 100 % of selected test voltage, or until breakdown |
The meter’s accuracy is specified for one year after calibration at operating temperatures of 0°C to 35°C. For operating temperatures outside the range (-20°C to 0°C and 35°C to 50°C), add ±0.25 % per °C, except on the 20 % bands add ±1 % per °C.
| Mechanical Specifications |
Dimensions
(L x W x H) |
170 mm x 242 mm x 330 mm
(6.7 in x 9.5 in x 13.0 in) |
Weight
(with battery) |
4 kg (8.8 lbs) |
| Power |
| Battery type |
12 volt, lead-acid, rechargeable |
| Charger input (AC) |
85 to 250 V ac 50/60 Hz 50 VA |
| Charger input (DC car adapter) |
10 to 15 V dc, 30 VA |
Battery life (typical)
Note: At higher temperatures,
the battery requires more
frequent charging. |
| Test voltage |
Number of tests |
| 250 V |
4138 |
| 500 V |
3913 |
| 1 kV |
3462 |
| 2.5 kV |
2043 |
| 5 kV |
1000 |
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| Environmental Specifications |
| Operating temperature |
-20 °C to 50 °C (-4 °F to 122 °F) |
| Storage temperature |
-20 °C to 65 °C (-4 °F to 149 °F) |
| Relative Humidity |
80 % at 31 °C decreasing linearly to 50 % at 50 °C |
| Operating altitude |
0 to 2000 meters |
| Enclosure sealing |
IP-40 |
| Shock, vibration |
MIL-PRF-28800F, Class II |
| EMI immunity |
EN 61326 |
| Safety |
EN 61010-1, CAT III, 600 V,
EN61557, PARTS 1 & 2 |
| Input Overload Protection |
600 V ac continuous |
| Software Specifications |
| Quicklink 1550B Software |
Requires a PC running Windows® 95, 98, Me, 2000, NT4.0
2-year warranty |
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