BG 800 300 BE / A (0105) TPG 300
16
4.5 »sensor« mode
The TPG 300 is in »sensor« mode
•
after being switched on
•
after the <sensor> key has been pushed
•
one minute after the last keystroke in »set point« mode
4.5.1 Switching the measuring circuit on / off
Measuring circuit on
Measuring circuit off
Each individual measuring circuit can be
manually switched on or off (after entering
the code with <step> and <funct>)
Manual on/off-switching has priority over the
automatic control.
Measured value
1 2 3 4 A B
mbar
A1
0
10
Plug-in board identification
1 2 3 4 A B
A1
0
10
Switch on cold cathode gauges at
pressures <10
-3
mbar only, in order
to prevent excessive contamination
of the gauges.
When the cold cathode measuring circuit is
switched on, the LED «PE» on the front
panel lights up.
Pirani gauges are not deactivated by switching them off, only their measuring results and
the error message are suppressed.
Switching off the cold cathode gauge helps to prevent it from becoming contaminated.
