Fluke 87 V - Manual (Page 58)

80 Series V
Users Manual
50
Table 17. Frequency Counter Sensitivity and Trigger Levels
Minimum Sensitivity (RMS Sine wave)
Input Range 1 5 Hz - 20 kHz 0.5 Hz - 200 kHz
Approximate Trigger Level
(DC Voltage Function)
600 mV dc
600 mV ac
6 V
60 V
600 V
1000 V 70 mV (to 400 Hz)
150 mV
0.3 V
3 V
30 V
100 V 70 mV (to 400 Hz)
150 mV
0.7 V
7 V (
≤ 140 kHz)
70 V ( ≤ 14.0 kHz)
200 V ( ≤ 1.4 kHz)
40 mV
⎯
1.7 V
4 V
40 V
100 V
Duty Cycle Range Accuracy
0.0 to 99.9 % Within ± (0.2% per kHz + 0.1 %) for rise times < 1 μ s.
1. Maximum input for specified accuracy = 10X Range or 1000 V.