30 BG 805 970 BE (0306) TPG 300.oi
Automatic control: «Au», cold cathode measuring circuit
waits for the fulfillment of the power on condition by the
Pirani measuring circuit:
1234AB
mbar
Torr
Pa
A1
A2
B1
B2
PE
PE
010
If the cold cathode measuring circuit is self-monitored, it
automatically switches off
• when the measured value exceeds the upper
threshold.
The measuring circuit must be restarted manually. Re-
starting can be prevented by another measuring circuit
(e.g. Pirani).
Measured value or plug-in board identification:
1234AB
mbar
Torr
Pa
A1
A2
B1
B2
PE
PE
010
When the measuring circuit is switched off, its identifica-
tion is displayed (→ 28):
Cold cathode measuring circuit
5×10
-9
mbar, automatic operation
Cold cathode measuring circuit
1×10
-10
mbar, automatic operation
Cold cathode measuring circuit
10
-11
mbar, automatic operation
Automatic Control
5.5.5 Self-Monitoring
5.5.6 Plug-In Board
Identification