Input Characteristics; Min Max Recording - Fluke 279 FC User Manual

279 FC
Users Manual

Input Characteristics

Overload
Function
Protection

1100 V rms

1100 V rms

1100 V rms


1100 V rms
/
R 
1100 V rms
/

MIN MAX Recording

Function
DC Functions
AC Functions
42
Common Mode
Input Impedance
Rejection Ratio
(nominal)
(1 kΩ unbalance)
>10 MΩ <100 pF >120 dB at dc, 50 Hz or 60 Hz
>10 MΩ <100 pF >60 dB, dc to 60 Hz
>10 MΩ <100 pF >120 dB at dc, 50 Hz or 60 Hz
Full Scale Voltage
Open Circuit Test
Voltage
Ω
To 6 M
<2.7 V dc <0.7 V dc
<2.7 V dc 2.000 V dc
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.
Normal Mode Rejection
>60 dB at 50 Hz or 60 Hz
>60 dB at 50 Hz or 60 Hz
Typical Short Circuit Current
Ω
50 M
<350 μA
<0.9 V dc
<1.1 mA
Measurement