Fluke 1625 FE 1625 Users Manual - Page 24

RH with, Umeas = 48 V, RH with Umeas = 20 V, Resolution, electrode resistance R

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1625 Users Manual fluencing conditions (see diagramm), the display shows a warning symbol W and a notice that RS or RH are too high. F 1000% 100% 10% 1 % 3000 1000 RH/RE= 300 100 30 10 3 1 0,3 0 ,1% 1 0 100 1 k 10k 100k 1M RS edw005.eps Automatic switchover of measuring resolution in dependence to auxiliary earth electrode resistance RH: RH with Umeas = 48 V < 300 Ω < 6 kΩ < 60 kΩ < 600 kΩ RH with Umeas = 20 V < 250 Ω < 2,5 kΩ < 25 kΩ < 250 kΩ Resolution 1 mΩ 10 mΩ 100 mΩ 1 Ω 16

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1625
Users Manual
16
fluencing conditions (see diagramm), the display shows a warning symbol
W
and a notice that
RS or RH are too high.
%
0
0
0
1
F
%
0
0
1
%
0
1
%
1
%
1
,
0
M
1
k
0
0
1
k
0
1
k
1
0
0
1
0
1
3
,
0
1
3
0
1
0
3
0
0
1
=
R
/
R
E
H
0
0
3
0
0
0
1
0
0
0
3
R
S
edw005.eps
Automatic switchover of measuring resolution in dependence to auxiliary earth
electrode resistance R
H
:
RH with
Umeas = 48 V
RH with Umeas = 20 V
Resolution
< 300
Ω
< 250
Ω
1 m
Ω
<
6 k
Ω
<
2,5 k
Ω
10 m
Ω
<
60 k
Ω
<
25 k
Ω
100 m
Ω
< 600 k
Ω
< 250 k
Ω
1
Ω