Chauvin Arnoux C.A 6531 Manual De Instrucciones página 32

4.2 Automatic shutdown
After 5 minutes without any activity by the user on the instrument
(key press on the keyboard or on the yellow key on the remote
control probe or turn of the rotary switch), the instrument shuts
down automatically. It is then on standby. When this is the case,
to start up the instrument again, all you have to do is press one
of the keys, turn the switch or press the yellow key on the remote
control probe.
4.2.1 Deactivation of the automatic shutdown function
Press the
rotating switch. The
continuous use mode.
To reactivate the automatic shutdown function, switch the
instrument off (turn the switch to OFF) and then switch it back
on again.
4.3 Autotests
4.3.1 Power supply
The power supply voltage is measured automatically once every
second. The voltage range ensuring correct operation is between
7 V and 10 V. Depending on the result of the autotest, there are
four possible cases:
The voltage is correct:
The
The remaining charge life is low (U < 7.1 V): the
symbol flashes.
Measurement accuracy is no longer guaranteed - change
the batteries (U ≤ 6,9 V): the
continuously.
The voltage is close to interrupting operation of the clock (U
< 6.7 V): the digital display indicates BAT and then, after 5
seconds, the shutdown buzzer sounds and the automatic
shutdown function is activated. The instrument shuts down.
4.3.2 Fuse (C.A 6531)
The fuse is automatically tested when switching on the
instrument and at the end of each current measurement.
4.4 Buzzer
4.4.1 The different audible signals
When the symbol is displayed, the buzzer is active. It gives
out different audible signals, depending on the situation.
Short buzz (65 ms at 2 kHz) in the following cases:
- press on a key
- automatic shutdown
Continuous buzz (at 2 kHz) in the following cases:
- when the measurement is lower than the minimum
threshold,
- when the measurement is higher than the maximum
threshold.
button whilst switching on the device with the
displayed indicates that the device is in
P
symbol is not displayed on the screen.
symbol remains lit
32