Chauvin Arnoux CA6423 GROUNDING METER P01127013 User Manual

2 1

Temperature

23°C ± 3 K

Relative humidity

45% < RH < 55%

Supply voltage

10.5 V ± 0.2 V

Auxiliary resistances R

H

, R

S 

and R

E

nil

AC and DC interference voltages

nil

Electric field

< 1 V/m

Magnetic field

< 40 A/m

Operating limits

Max variation

Temperature

-10...+55°C

  ± (1% rdg ± 1 pt) per 10°C

Relative humidity

20...90%

±  2% rdg ± 5 pt

Operating voltage

8.8...12.5 V

± (1% rdg  ± 1 pt) per Volt

Voltage circuit load (1)

50 k

Ω

± 1% rdg per 10 k

Ω

  ± 4 pt

Current circuit load (2)

0.00...19.99 

 Ω

30 k

Ω

± 1% rdg per 10 k

Ω

  ± 2 pt

20.00...199.9  

Ω

30 k

Ω

± 1% rdg per 10 k

Ω

 ± 2 pt

200.0...1999  

Ω

50 k

Ω

± 1% rdg per 10 k

Ω

  ± 2 pt

DC voltage

0...20 V (3)

negligeable

AC interference voltages on H

0...23 V

rms

 or 32 V

peak

± 2% rdg ± 2 pt

AC interference voltages on S

0...9 V

rms

 or 13 V

peak

± 0.5% rdg ± 2 pt

(1) Resistance measured or resistance of rod E + resistance of rod S + resistance of leads
(2) Resistance measured or resistance of rod E + resistance of rod H + resistance of leads
(3) Possible flashing of HIGH RESISTANCE indicator above 4.5 V

Measurement range

Resolution

Measurement current

Accuracy

Empty voltage

(automatic range)

(square signal 128 Hz)

0.00...19.99 

 Ω

0.01 

Ω

10 mA

± 2%rdg ±1 pt

≤

 42 V

peak

20.00...199.9 

 Ω

0.1 

Ω

1 mA

± 2%rdg ±1 pt

≤

 42 V

peak

200.0...1999 

 Ω

1 

Ω

100 µA

± 2%rdg ±3 pt

≤

 42 V

peak

Response time

between 4 and 8 s depending on measurement conditions