Frequency Counter Sensitivity; Burden Voltage (A, Ma, Μa) - Fluke 187 Getting Started

Frequency Counter Sensitivity

Approximate VAC Sensitivity
15 Hz to
Input Range
100 kHz
50 mV 5 mV
500 mV 20 mV
3000 mV 500 mV
5 V 0.5 V
50 V 5 V
500 V 20 V
1000 V 100 V
.
1. Maximum input = 10 x Range (1000 V max). Noise at low frequencies and amplitudes may affect accuracy.
2. Useable at reduced sensitivity to 0.5 Hz and 1000 kHz.
.
3. Typical frequency bandwidth with full scale (or maximum 2 X 10
Burden Voltage (A, mA, µA)
Function
mA - µA
A
1
(RMS Sine Wave)
2 2
500 kHz
10 mV
20 mV
2000 mV
2.0 V
5.0 V
20 V
100 V
Range
500.00 µA
5,000 µA
50.000 mA
400.00 mA
5.0000 A
10.000 A
Approximate VDC
3
VAC Bandwidth
1 MHz -5 mV & 5 mV
1 MHz 5 mV & 65 mV
800 kHz 140 mV & 200 mV
950 kHz 1.4 V & 2.0 V
1 MHz 0.5 V & 6.5 V
1 MHz 5 V & 65 V
> 400 kHz 5 V & 65 V
7
V-Hz product) RMS sine wave.
True RMS Multimeter
Frequency Counter Sensitivity
1
Trigger Levels Bandwidth
1 MHz
1 MHz
90 kHz
14 kHz
> 400 kHz
> 400 kHz
> 400 kHz
Burden Voltage (typical)
102 µV / µA
102 µV / µA
1.8 mV / mA
1.8 mV / mA
0.04 V / A
0.04 V / A
VDC
3
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