User Manual

175, 177, 179
Users Manual
24
Frequency Counter Sensitivity
Input Range
[1] [2]
Typical Sensitivity (RMS Sine Wave)
2 Hz to 45 Hz 45 Hz to 10 kHz 10 kHz to 20 kHz 20 kHz to 50 kHz 50 kHz to 100 kHz
Volts ac
600 mV Unspecified
[3]
80 mV 150 mV 400 mV Unspecified
[3]
6 V 0.5 V 0.6 V 1.0 V 2.8 V Unspecified
[3]
60 V 5 V 3.8 V 4.1 V 5.6 V 9.6 V
600 V 50 V 36 V 39 V 45 V 58 V
1000 V 500 V 300 V 320 V 380 V NA
Volts dc
6 V 0.5 V 0.75 V 1.4 V 4.0 V Unspecified
[3]
60 V 4 V 3.8 V 4.3 V 6.6 V 13 V
600 V 40 V 36 V 39 V 45 V 58 V
1000 V 500 V 300 V 320 V 380 V NA
AC/DC Amps
mA 5 mA 4 mA 4 mA 4 mA
[4]
NA
A 0.5 A 0.4 A 0.4 A 0.4 A
[4]
NA
[1] Maximum input for specified accuracy = 10X Range or 1000 V.
[2] Noise at low frequency and amplitude may exceed the frequency accuracy specification.
[3] Unspecified but usable depending on quality and amplitude of signal.
[4] In mA and A ranges, frequency measurement is specified to 30 kHz.