3.3 Compensation of the leads. CHAUVIN ARNOUX C.A 6456

Parameter

Erase memory (totally or partially)

MEM

Presses

Reference voltage for the calculation of I k

Value of the low current I

TEST in "non-tripping" measurement

Threshold voltag U

L

Alarms :

Earth resistance threshold

Loop resistance or impedance threshold

Measured current threshold

MORE x2

MORE x3

MORE x4

2 nd + MORE

2 nd + MORE x2

2 nd + MORE x3

Values see §3.6

Default values see § 4.3.2

6.9 or 12 mA see § 4.2.2

25 or 50 V voltage measured

12 mA

50 V see § 4.2.2

see § 4.4.2

see § 4.6.2

3.2.1

RESTORING THE DEFAULT CONFIGURATION

This can be used to restore the delivery configuration.

In SET- UP position:

PUSH btn

TEST dFLt

TEST for validation and programming of the default configuration

PUSH btn

3.3

COMPENSATION OF THE LEADS

The leads must be compensated for measurements of low loop and earth resistance values, in order to make the measurements more accurate.

If a compensation already exists, the symbol is displayed. To view the compensation values, use the

MORE and 4 keys.

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3.3.1

APPLYING A COMPENSATION

Set the switch to one the LOOP/RCD positions.

Connect one end of the three-conductor cord terminated by 3 leads to the device. Short-circuit the 3 leads.

In the case of a mains outlet, connect the two earth pins with the earth pins with leads.

Perform a long press on the TEST button.

During the measurement, the device displays "LEAd" and the symbol, and the dashes blink.

At the end of the measurement, the 4 key is used to view the values of R

∆

L

, R

∆

N

and R

∆

PE

.

3.3.2

WITHDRAW A COMPENSATION

Set the switch to one of the LOOP/RCD positions.

Connect nothing to the terminals, or leave the leads open.

Then perform a long press on the TEST button.

During the measurement, the device displays "LEAd" and the symbol and the dashes blink.

To exit from compensation of the leads, perform a second long press on the TEST key.

If the compensation of the leads is effective, the symbol is lit steadily.

If the compensation has not been performed, the symbol is not displayed and the compensation values are zero.

At the end of the measurement, the device reports that the result found is greater than 5 Ω and withdraws the compensation of the leads.

For exit from compensation of the leads, perform a second long press on the TEST key.

3.3.3

POSSIBLE ERROR MESSAGES

Display - Indication

Hz

U xy

> 2V

Remark - Possible cause

The voltage on the terminals exceeds 2 V.

Check your connections.

> 5

Ω

The measured resistance of the leads is greater than 5

Ω

.

If this is not intentional, to withdraw the compensation, check your connections.

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