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Frequency Counter Sensitivity
[1] [2]
Input Range
2 Hz to 45 Hz
6 V
0.5 V
60 V
600 V
50 V
1000 V
500 V
6 V
0.5 V
60 V
600 V
40 V
1000 V
500 V
60.00 mA
5 mA
400.0 mA
5 mA
[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 10 kHz.
Input Characteristics
Overload
Function
Protection
1100 V rms
1100 V rms
1100 V rms
Ω /
1100 V rms
/
1100 V rms
Function
mA
Fused, 44/100 A, 1000 V FAST Fuse
MIN MAX Recording
Function
DC Functions
AC Functions
Typical Sensitivity (RMS Sine Wave)
45 Hz to 10 kHz
0.6 V
5 V
3.8 V
36 V
300 V
0.75 V
4 V
3.8 V
36 V
300 V
4 mA
4 mA
Input Impedance
(nominal)
>10 MΩ <100 pF
> 120 dB at dc, 50 Hz or 60 Hz
>10 MΩ < 100 pF
> 120 dB at dc, 50 Hz or 60 Hz
>10 MΩ <100 pF
Open Circuit Test
Voltage
To 6 MΩ
<2.7 V dc
<0.7 V dc
<2.7 V dc
Overload Protection
The specified accuracy of the measurement function ±12 counts for changes >350 ms in
duration.
The specified accuracy of the measurement function ±40 counts for changes >900 ms in
duration.
10 kHz to 20 kHz
20 kHz to 50 kHz
1.0 V
2.8 V
4.1 V
5.6 V
39 V
50 V
320 V
380 V
1.4 V
4.0 V
4.3 V
6.6 V
39 V
45 V
320 V
380 V
NA
NA
Common Mode
Rejection Ratio
(1 kΩ unbalance)
> 60 dB, dc to 60 Hz
Full Scale Voltage
50 MΩ
<0.9 V dc
2.000 V dc
Overload
600 mA overload for 2 minutes maximum, 10 minutes
rest minimum
Accuracy
Wireless Multimeter
50 kHz to 100 kHz
[3]
Unspecified
9.6 V
58 V
NA
[3]
Unspecified
13 V
58 V
NA
NA
NA
NA
NA
Normal Mode Rejection
> 60 dB at 50 Hz or 60 Hz
> 60 dB at 50 Hz or 60 Hz
Typical Short Circuit Current
<350 μA
<1.1 mA
Specifications
7
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