Measurement By "Schlumberger" Method; Characteristics - Chauvin Arnoux CA 6470 Mode D'emploi

4.5.3.2

MEASUREMENT BY "SCHLUMBERGER" METHOD:

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
ρ
, A, d
S
R
S-ES
U , F
OUT measurement
U I
S-ES, H-E
U "NOISE"
S-ES
U "NOISE"
H-E
(2)
U and f , U
S-ES
(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.
4.5.4

CHARACTERISTICS :

Open circuit voltage
Short-circuit current
Max. acceptable spurious voltage
Maximum overvoltage
Measurement duration
Maximum resistance of probes H,
E, S, ES
Resistivity measurement R
Measurement range
0.01 – 9.99Ω 10.0 – 99.9Ω
Resolution
Intrinsic error
Operating error
R
R
Measurement frequency = 41 to 128 Hz
Spurious voltage null or ≤ 60V
R
R
Measurement frequency = 41 to 128 Hz
Spurious voltage null or ≤ 60V
R
R
Measurement frequency = 41 to 128 Hz
Spurious voltage null or ≤ 60V
Measurement resistance of probes R
Measurement range
0.01 – 9.99Ω 10.0 – 99.9Ω
Resolution
Intrinsic error
key :
If measurement is triggered by pressing and
(1)
and f
(1)
and f
(2)
and f
H-E
16 or 32 V rms
> 200mA
60V
peak
250V rms
8 s (pushbutton pressed briefly) – 20 s (pushbutton pressed
and held)
100kΩ
S-ES
0.01Ω 0.1Ω
≤ 100kΩ
probe
/R ≤ 2000
probe S-ES
≤ 50kΩ
probe
/R ≤ 10000
probe S-ES
≤ 10kΩ
probe
/R ≤ 20000
probe S-ES
, R , R , R
H E S ES
0.01Ω 0.1Ω
± (10% + 2pt) at 128 Hz
51
holding START pushbutton
ρ
, A ,d
S
R
S-ES
U , f
OUT measurement
R , R , R , R
PE PH P-ES
U , I
SES HE
(1)
U "NOISE" and f
S-ES
(1)
U "NOISE" and f
H-E
(2) (2)
U and f , U
S-ES H-E
100 - 999Ω 1.00 – 9.99kΩ 10.0 – 99.9kΩ
1Ω 10Ω
± (2% + 1pt)
and (f – f ) > 0.2
peak meas dist
and (f – f ) > 0.2
peak meas dist
and (f – f ) > 0.2
peak meas dist
100 - 999Ω 1.00-9.99kΩ
1Ω 10Ω
DISPLAY DISPLAY DISPLAY
SMOOTH SMOOTH
PS
and f
100Ω
± (7% +2pt)
± (15% +3pt)
± (20% + 1pt)
10.0-99.9kΩ
100Ω