Fluke 189 - Manual (Page 96)

Model 187 & 189
Users Manual
7-12
Input Characteristics
Function Input Impedance (Nominal)
Volts, mV 10 M
Ω
, < 100 pF
Common Mode Rejection Ratio Normal Mode Rejection
DC Volts, mV >100 dB at dc, 50 Hz or 60 Hz ±0.1% >90 dB at 50 Hz or 60 Hz
±
0.1%
AC Volts, mV > 90 dB dc to 60 Hz
Full-Scale Voltage
Open Circuit Test Voltage To 5 M
Ω
30 M
Ω
+ nS
Ohms < 5 V 500 mV 3.1 V
Diode Test < 5 V 3.1000 V
Typical Short-Circuit Current
500
Ω
5 k
Ω
50 k
Ω
500 k
Ω
5 M
Ω
30 M
Ω
Ohms 1 mA 100
µ
A 10
µ
A 1
µ
A 0.1
µ
A 0.1
µ
A
Diode Test 1 mA typical