Fluke 77 - Manual (Page 16)

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