Chauvin Arnoux C.A 6541 Notice De Fonctionnement page 38

2.2.1 Digital display
The main display indicates values when carrying out insulation measurement (resistance, DAR and PI,
capacitance), and continuity and resistance measurement.
The small digital display indicates the voltage measured or applied by the instrument.
During insulation measurement, the elapsed time or the output voltage is displayed.
After recording a set of data (C.A 6543), the small display also indicates the time and date in MR
(memory recall) mode. It also indicates the memory address with the OBJ. TEST number (see § 2.2.3.
Symbols).
2.2.2 Bar graph
The bar graph is active for insulation measurement (0.1 MΩ to 1 TΩ). It also serves to indicate the
battery charge, as well as the free memory space - one segment representing approximately 100 groups
of saved values.
2.2.3 Symbols
MEM/MR Memory address (C.A 6543): the number is displayed above, on the small digital display.
OBJ : TEST Memory address (C.A 6543), the number is displayed above on the small digital display.
COM Flashes on the screen when data is transmitted to the serial interface (C.A 6543) or remains
permanently displayed if there is a problem during transfer.
DAR/PI Indicates the mode chosen before insulation measurement or the results of these
measurements.
Dangerous voltage generated, V > 120 V.
!
External voltage present, symbol is activated after pressing START, if V > 25 V
35 V
DC
Activation of "time-controlled test" mode or clock adjustment when in SET-UP (C.A 6543)
Indicates that the second function of a button is to be used
2nd
Flashes if the battery voltage (C.A 6541) or the rechargeable battery (C.A 6543) is low. The
batteries should be replaced or the rechargeable battery should be recharged (See § 8
Maintenance).
The voltage is displayed on the small digital display for 2 seconds whilst the instrument
switches on. The main display indicates " bat ". This test is carried out internally on a load
corresponding to that during functioning.
W
Signal that lead compensation is in effect
0
Warning buzzer is activated
Indicates that the automatic switch-off function has been deactivated
SMOOTH Smoothes the insulation measurements displayed
REMOTE Remote control via an interface (C.A 6543). In this mode, all the buttons and the rotary
switch on the instrument are non-functional , except for in the case of switching off the
instrument.
FUSE HI Flashes if the " + " input fuse is defective.
FUSE -G- Flashes if the " G " input fuse is defective.
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±3 V or >
AC