Data Sheet

4 Fluke Corporation 1587/1577 Insulation Multimeters
Frequency counter sensitivity
Input Range
V ac Sensitivity (RMS Sinewave)
1
DC Trigger Levels to 20 kHz
2
5 Hz to 20 kHz 20 kHz to 100 kHz
600.0 mV ac 100.0 mV 150.0 mV N/A
6.0 V 1.0 V 1.5 V -400.0 mV and 2.5 V
60.0 V 10.0 V 36.0 V 1.2 V and 4.0 V
600.0 V 100.0 V — 12.0 V and 40.0 V
1000.0 V 300.0 V — 12.0 V and 40.0 V
1
Maximum input for specified accuracy = 10x range (1000 V max). Noise at low frequencies and amplitudes may affect accuracy.
2
Usable to 100 kHz with full scale input.
Capacitance (1587 only)
Range Resolution ± (% of Rdg+Digits)
1000 nF 1 nF
± (1.2 % + 2)10.00 µF 0.01 µF
100.0 µF 0.1 µF
9999 µF 1 µF ± (1.2 % +/- 90 counts)
Temperature measurement (1587 only)
Range Resolution Accuracy
1
-40 °C to 537 °C 0.1 °C ± (1 % + 10 counts)
-40 °F to 998 °F 0.1 °F ± (1 % + 18 counts)
1
Accuracies apply following 90 minutes settling time after a change in the ambient temperature of the instrument
Insulation specifications
Measurement range 1587: 0.01 MΩ to 2 GΩ , 1577: 0.1 MΩ to 600 MΩ
Test voltages 50, 100, 250, 500, 1000 V model 1587, 500 and 1000 V model 1577
Test voltage accuracy + 20 %, - 0 %
Short-circuit test current 1 mA nominal
Auto discharge Discharge time < 0.5 second for C = 1 µF or less
Live circuit detection Inhibit test if terminal voltage > 30 V prior to initialization of test
Maximum capacitive load Operable with up to 1 µF load