Operation; Switching On; Operating The Heater; Tube Heater - Pfeiffer Vacuum OmniStar GSD 300 O1 Operating Manual

5 Operation

5.1 Switching on

Precondition
•
Initial start up procedure completed (
•
Balzers Quadstar™ 422 ready for operation
Procedure
Turn on the mains switch
<power>
Wait until the turbo pump has attained 90% of the nomi-
nal speed
<ready>
Avoid excessive shocks during operation and up to
15 minutes after power off.
Establish communication with Balzers Quadstar™ 422
OmniStar™:
The valves are controlled by the software.
ThermoStar™:
Valve (option) is opened only for calibration.
Adjust the heater, gas inlet and hose or vacuum chamber
(→ section 5.2).
BG 805 071 BE (9904) GSD300.om
2
→
18 subsequent)
<valve>
<valve>

5.2 Operating the Heater

5.2.1 Tube Heater

<heater> (Turn on the tube heater)
<heater>
The actual temperature and the set point tem-
perature are displayed.
Red display:
Green display:
Enter the temperature set point value with the
keys (value range 0 ... 200º C).
<OUT> Actual temperature < set point temperature
(Heater operates with full power)
Actual temperature ≈ set point temperature
<OUT>
(Temperature is stabilized)

5.2.2 Inlet Housing Heater

The gas inlet heater is electrically connected in parallel with the
hose heater. The temperature of the gas inlet approximately
follows the temperature of the heating hose.

5.2.3 Vacuum Chamber Heater

The vacuum chamber is heated for conditioning the analysis
chamber.
During an analysis, the vacuum chamber heater must be
switched off. In particular the secondary electron multiplier
may not be in operation while the vacuum chamber heater
is on.
<baking> (Turn on the vacuum chamber heater)
<baking>

5.3 Interaction with Software

→ section 4.2.
Actual temperature
Set point temperature
and
Operation 23