Description; Front Panel; Keys - Chauvin Arnoux C.A 6250 Notice De Fonctionnement

2.1 FRONT PANEL OF THE C.A 6250
- 4 4mm-dia. safety terminals identified as C1, P1, P2 and C2
- 9-way rotary switch :
Off : instrument power off / setting for charging
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2500 Ω : 2500,0 Ω range – measuring current 1 mA
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250 Ω : 250,00 Ω range – measuring current 10 mA
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25 Ω : 25,000 Ω range – measuring current 100 mA
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2500 mΩ : 2500,0 mΩ range – measuring current 1 A
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250 mΩ : 250,00 mΩ range – measuring current 10 A
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25 mΩ : 25,000 mΩ range – measuring current 10 A
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5 mΩ : 5,0000 mΩ range – measuring current 10 A
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SET-UP : instrument configuration
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- 1 yellow START/STOP key: start/stop measurement
- 8 elastomer keys each having a primary function and a secondary function.
- 1 backlit LCD screen
- 1 receptacle for connection to line power to charge the battery
- 1 jack for connection of a Pt100 temperature probe,
- 1 RS 232 serial INTERFACE plug (9 pin contacts) for connection to a PC or to a printer.
2.2

KEYS

8 keys each having a primary function and a secondary function :
Activate the secondary function written in yellow italics below each key. The
symbol appears on the screen.
nd
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Primary function: before starting the measurement, select the desired measurement
mode: inductive, non-inductive or non-inductive with automatic triggering.
Secondary function: select the metal for the temperature compensation calculation:
METAL
Cu, Al, or Other metal.
Primary function: activate/deactivate the temperature compensation function:
R( )
θ θ θ θ
calculation of the resistance at a temperature other than the measurement
temperature.
Secondary function: activate/deactivate alarms. The direction and the triggering
ALARM
value (high or low) are adjusted in the SET-UP menu
MEM
Primary function: store the measurement at an address identified by an object
number (OBJ) and a test number (TEST).
Secondary function: retrieve stored data (this function is independent of the setting
MR
of the switch) except in the OFF and SET-UP settings.
% Primary function: in SET-UP mode, select a function or increment a flashing
parameter.
Secondary function: in SET-UP mode, select a function or decrement a flashing
& parameter.
Primary function: select the parameter to be modified (in wraparound mode, from
left to right). In SET-UP mode, access the adjustments of a function.
Secondary function: in SET-UP mode, shift the decimal point and select the unit.
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PRINT
Primary function: print the measurement directly to a serial printer.
Secondary function: print stored data to a serial printer.
PRINT MEM
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Primary function: activate/deactivate the backlighting of the display unit.
Secondary function: activate and adjust the sound level/deactivate the audible
signal.

2. DESCRIPTION

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