Input Characteristics - Fluke 187 User Manual

Model 187 & 189
Users Manual

Input Characteristics

Function
Volts, mV
DC Volts, mV
AC Volts, mV
Ohms
Diode Test
Ohms
Diode Test
7-12
Common Mode Rejection Ratio
>100 dB at dc, 50 Hz or 60 Hz ±0.1%
> 90 dB dc to 60 Hz
Open Circuit Test Voltage
< 5 V
< 5 V
500 5 k
1 mA 100 A
Input Impedance (Nominal)
10 M , < 100 pF
>90 dB at 50 Hz or 60 Hz
To 5 M
500 mV
Typical Short-Circuit Current
50 k 500 k
10 A 1 A
1 mA typical
Normal Mode Rejection
0.1%
Full-Scale Voltage
30 M
3.1 V
3.1000 V
5 M 30 M
0.1 A
+ nS
0.1 A