Fluke 1550B - Electrical Specifications; Measurement Ranges and Accuracy

MegOhmMeter
Specifications
23
Electrical Specifications
The meter’s accuracy is specified for 1 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 ± .25 % per °C, except on the 20 %
bands add ± 1 % per °C.
Insulation
Test Voltage (DC) Insulation Resistance Range 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
Bar graph range:
Insulation test voltage accuracy:
Induced ac mains current rejection:
Charging rate for capacitive load:
0 to 1 TΩ
-0 %, +10 % at 1 mA load current
2 mA maximum
5 seconds per µF
Discharge rate for capacitive load 1.5 s/µF
Leakage current measurement
Range Accuracy
1 nA to 2 mA +/- (5 % + 2 nA)
Capacitive measurement
Range Accuracy
0.01 µF to 15.00 µF +/- (15 % of reading + 0.03 µF)
Timer
Range Resolution
0 to 99 minutes
Setting: 1 minute
Indication: 1 second
Live circuit warning Warning range: 30 V to 660 V ac/dc, 50/60 Hz
Voltage accuracy: +/- (5 % + 2 V)