Measurement & Results; Characteristics - Chauvin Arnoux CA 6470 Mode D'emploi

4.3.3 MEASUREMENT & RESULTS
At the start of the measurement:
- the instrument measures U
greater than 60V
peak
- the instrument checks the connections : if incorrect, the measurement is refused and the
faulty connection symbols flash.
- If a spurious voltage affects the accuracy of the measurement to be performed, the "NOISE"
symbol flashes.
During measurement :
- if a voltage > 60 V
peak
Note :
If the measurement is unstable or if the measurement results are inconsistent, trigger the
measurement again to check that the problem is not a faulty connection.
On completion of the measurement, the following quantities can be displayed using the
MEM MEM MEM
key and saved using the
MR MR
If measurement is triggered by briefly
pressing START pushbutton
R , U , I
E S-E H-E
U , f
OUT measurement
(1)
U "NOISE" and f, U
S-E H-E
(2) (2)
U and f, U and f
S-E H-E
(1)
Accessible only if spurious voltages are present which have affected the accuracy of the
measurement ("NOISE" symbol on steady).
(2)
possible voltage present (post-measurement) across terminals.
4.3.4

CHARACTERISTICS :

Measurement method
Open circuit voltage
Short-circuit current
Maximum acceptable
spurious voltage
Maximum resistance of
probe R , R
H S
Measurement time
Earth resistance R
E
Measurement range
Resolution
Intrinsic error
and U (and associated frequencies) : if U
S-E H-E
, the measurement is refused,
is detected, the measurement is stopped.
key:
If measurement is triggered by pressing and
R , R
E
U
OUT
U , I
S-E
(1)
"NOISE" and f U
S-E
U
S-E
EN61557-5
16 or 32 V rms
>200mA
60V
peak
100kΩ
∼ 7 s (if START button is pressed briefly)
∼ 15 s (if START button is pressed and held)
0.01 –9.99Ω 10.0 – 99.9Ω
0.01Ω 0.1Ω
45
holding START pushbutton
, R
H S
, f
measurement
H-E
(1)
"NOISE" and f , U "NOISE"
H-E
(2) (2)
and f, U and f
H-E
100 - 999Ω 1.00 – 9.99kΩ 10 – 99.9kΩ
1Ω 10Ω
± (2% + 1pt)
and U are
S-E H-E
DISPLAY DISPLAY DISPLAY
SMOOTH SMOOTH
(1)
and f
100Ω