Fluke 77 Series III Service Manual page 16

Overload protection for all functions and ranges: Rated voltage.
Function Input Impedance (Nominal)
, m ,
>10 M , <50 pF
Common Mode Rejection
Ratio (1 k
, m
>120 dB at dc, 50 Hz, or 60 Hz
>60 dB dc to 60 Hz
Open Circuit Test Voltage
<3.1 V dc
<2.8 V dc (typical)
Open Circuit Test Voltage
<3.1 V dc
Unbalanced)
Short Circuit Current (typical)
300 A
400 A
V
F
0.0 V
0.6 V
1.2 V
2.0 V
Introduction and Specifications
Normal Mode Rejection
>60 dB at 50 Hz or 60 Hz
Full Scale Voltage
To 3.2 M
<440 mV dc <1.4 V dc
<420 mV dc <1.3 V dc
(typical) (typical)
Full Scale Voltage
2.0 V dc
Current (typical)
0.4 mA
0.3 mA
0.2 mA
0.1 mA
Specifications
32 M
1
1-7