DESCRIPTION. CHAUVIN ARNOUX C.A 6456

2. DESCRIPTION

Preliminary remarks : Several types of action are possible on each key of the keypad, depending on whether the user presses the key briefly (short press, < 2s, validated by a beep) or at length (long press, > 2s, validated by a beep having a tone different from that of the beep emitted for a short press).

In what follows, these different actions are symbolized as follows: for a short press on the key in question for a press > 2s on the key in question

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1 8 WAY ROTARY SWITCH :

- OFF :

- 3P :

- 2P : instrument off earth measurement with 2 auxiliary rods

AC or earth coupling resistance measurement

- REARTH / :

- ZLOOP :

- ZLINE :

- :

- SET-UP : earth measurement in a live condition, with one auxiliary rod (selective earth

if clamp connected) loop impedance measurement with 3 wires (high or low current), between phase (L) and earth (PE) loop impedance measurement with 2 wires (high current only), between two phases or between phase and neutral current measurement configuration of the instrument

Set the switch to OFF when the instrument is not in use

2 7-KEY KEYPAD :

The functions of the various keys are as follows for all the settings of the switch EXCEPT the SET-UP position (see § 3.2).

Touche 2 nd :

+ press on other key => access the secondary function of the key in question

(written in yellow italics below each key)

2 nd

=> display the current time and date as long as the key is kept pressed

Touche TEST / SMOOTH :

TEST => start/stop a measurement (except for voltage and current measurements, which are made directly) and exit from the error mode

TEST

2 nd + TEST

SMOOTH

Touche MORE / ALARM :

MORE

=>

=>

=> compensation of the measuring cables.

smooth the measurement (SMOOTH mode) display the measurements and/or complementary calculations of a function, possibly in association with the key .

2 nd + MORE

ALARM

Touche :

=> activate/deactivate the "alarm" function.

=> display the measurements and/or complementary calculations of a function, possibly in association with the key .

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Key

2 nd

MEM or

+ MEM

MR

2 nd or

+ PRINT

PRINT MEM

+

2 nd +

:

=> select the memory block (OBJ) or line (TEST) for storage, retrieval on screen, or printing

.

=> switch the backlighting of the display unit on/off with the switch set to ZLOOP and/or ZLINE:

=> select the type of measurement ("tripping" or

"non-tripping" mode )

=> increment the value of the memory block (OBJ) or line (TEST) 2 nd

MEM or

+ MEM

MR

2 nd or

+ PRINT

PRINT MEM

+

Key MEM / MR :

MEM + MEM

2 nd + MEM

MR

Key PRINT (PRINT MEM) :

PRINT

2 nd +

PRINT

PRINT MEM

=>

=>

=>

=>

=> decrement the value of the memory block (OBJ) or line

TEST) store a measurement and all information linked to it.

display stored measurements.

print the last measurement made print the selected part of the memory (part or all)

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