Warnings Or Error Reports (Earth Measurement In Live Condition) - Chauvin Arnoux C.A 6454 Bedienungsanleitung

4.2.5.2 INFLUENCING CONDITIONS
Influencing quantities
Temperature
Relative humidity
Power supply voltage
Network frequency of the
installation tested
Network voltage of the
installation tested
Resistance in series with the
voltage probe (earth in live
condition only)
Contact voltage (U
4.2.6 WARNINGS OR ERROR REPORTS (EARTH MEASUREMENT IN LIVE
CONDITION)
Preliminary remark: The complete list of coded errors is given in § 7.
Display – Indication
U > 25
C
< 90 V
U > 25 (or) 50 V
NPE
(or) >
< 15.3 Hz
U U
(or)
LN NPE
No
rod
Limits of the domain of
-10 to + 55 C
10 to 85% RH at 45
6,8 to 10 V
99 to 101% of nominal
frequency
85 to 110% of nominal
voltage
0 to 15kΩ
) 0 to 50V
C
H
Z
Voltage > U
50 V
(or)
disabled.
H
Z
One of the voltages, U
impossible.
H
Z
U is AC and > U
NPE
The frequency of U
65 Hz
measurement is impossible.
U
(or)
LPE
The rod is not connected, the measurement is stopped.
use
1%/10 C ± 1pt
Remark - Cause
between the TEST key and PE: the measurement is
L
or U
LN
: the measurement is impossible.
L
, U , or U
LN LPE
63
Variation of the measurement
Typical
2%/10 C + 2pt
2%
1%/ V ± 1pt
0.5%
0.5%
0.1%/kΩ 0.2%/kΩ + 1pt
0.1%/10V
, is < 90V: the measurement is
LPE
is < 15.3 Hz or > 65 Hz: the
NPE
Maximum
3% + 2 pt
2%/ V + 2pt
1% + 1 pt
1% + 1 pt
0.2%/10V