User Manual

1587/1577
Users Manual
34
Frequency Measurement (1587 Only)
Range Resolution
Accuracy
+
(% of Rdg+Digits)
99.99 Hz 0.01 Hz + (0.1 % + 1)
999.9 Hz 0.1 Hz + (0.1 % + 1)
9.999 kHz 0.001 kHz + (0.1 % + 1)
99.99kHz 0.01 kHz + (0.1 % + 1)
Frequency Counter Sensitivity
V ac Sensitivity (RMS Sinewave)
1
Input Range
5 Hz to 20 kHz 20 kHz to 100 kHz
DC Trigger Levels
1
to 20 kHz
2
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.