Fluke 80 Series III - Frequency Counter Sensitivity and Trigger Levels; MIN MAX Recording Specifications

Multimeters
Specifications
7
Frequency Counter Sensitivity and Trigger Levels
Minimum Sensitivity (RMS Sinewave)
Approximate Trigger Level
Input Range
1
5 Hz - 20 kHz 0.5 Hz - 200 kHz
(DC Voltage Function)
400 mV dc
400 mV dc
4 V
40 V
400 V
1000 V
70 mV (to 400 Hz)
150 mV
0.3 V
3 V
30 V
300 V
70 mV (to 400 Hz)
150 mV
0.7 V
7 V (≤140 kHz)
70 V (≤14.0 kHz)
700 V (≤1.4 kHz)
40 mV

1.7 V
4 V
40 V
400 V
Duty Cycle Range Accuracy
0.0 to 99.9 % Within ±(0.05 % per kHz + 0.1 %) of full scale for a 5 V logic family input on
the 4 V dc range.
Within ±((0.06 x Voltage Range/Input Voltage) x 100 %) of full scale for sine
wave inputs on ac voltage ranges.
1. Maximum input for specified accuracy = 10X Range or 1000 V.
MIN MAX Recording Specifications
Model Nominal
Response
Accuracy
83 100 ms to 80 %
1 s
Specified accuracy ±12 counts for changes >200 ms in duration
(±40 counts in ac with beeper on).
Same as specified accuracy for changes >2 seconds in duration
(±40 counts in ac with beeper on).
85, 87 100 ms to 80 %
(DC functions)
120 ms to 80 %
(AC functions)
1 s
250 µs
(Model 87 only)
Specified accuracy ±12 counts for changes >200 ms in duration.
Specified accuracy ±40 counts for changes >350 ms and inputs
>25 % of range.
Same as specified accuracy for changes >2 seconds in duration.
Specified accuracy ±100 counts for changes >250 µs in duration.