Input Characteristics - Fluke 289 User Manual

Input Characteristics

Overload
Function Input Impedance
[1]
Protection
1000 V 10 M <100 pF >120 dB at dc, 50 Hz or 60 Hz
L
F [2]
1000 V 10 M <100 pF >120 dB at dc, 50 Hz or 60 Hz
mV
10 M <100 pF
1000 V
K
3.2 k <100 pF
1000 V
L
Overload
Function
[1]
Protection
[2]
1000 V
e
[2]
50e 1000 V
[2]
G 1000 V
[1] Input is limited to the product of a V rms sinewave times frequency of 2 x 10
[2] For circuits <0.5 A short circuit. 660V for high energy circuits.
Common Mode
Rejection Ratio
(1 k
>60 dB, dc to 60 Hz
(ac-coupled)
Not specified
(ac-coupled)
Open Circuit Full Scale Voltage
Test Voltage
To 500 k
5 V dc 550 mV
20 V decreasing
500 mV
to 2.5 V
5 V dc 3.1 V dc
unbalance)
5 M or 50 nS 500 5 k
<5 V 1 mA 100 A 10 A
7
V-Hz.
True-rms Digital Multimeters
Detailed Specifications
Normal Mode Rejection
>60 dB at 50 Hz or 60 Hz
>60 dB at 50 Hz or 60 Hz
Not specified
Typical Short Circuit Current
50 k 500 k 5 M 50 M
1 A 0.3 A 0.3 A
10 mA
1 mA
500 M
0.3 A
77