Insulation Multimeter 
  Electrical Specifications 
39 
Frequency Counter Sensitivity (all 1587 models) 
Input Range 
V ac Sensitivity (RMS Sine Wave)
[1]
 
DC Trigger Levels
[1]
 to 20 kHz
[2]
 
5 Hz to 20 kHz  20 kHz to 100 kHz 
600.0 mV ac  100.0 mV  150.0 mV  na 
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 (all 1587 models) 
Range Resolution 
Accuracy 
±(% of Rdg+Counts) 
1000 nF  1 nF 
±(1.2 % + 2) 
10.00 μF 0.01 μF 
100.0 μF 0.1 μF 
±(1.2 % ±90 counts) 
9999 μF 1 μF 
Temperature Measurement (all 1587 models) 
Range Resolution 
Accuracy 
[1]
 
±(% of Rdg+Counts) 
-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. 
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