14
5. Monitoring Operations
5.1. Operations Display Via LED
Certain operations modes of the turbopump and the TC 100
can be ascertained via the two integrated LEDs located on
the front panel of the TC 100.
The following operations modes are displayed:
5.2. Turbopump Temperature Management
Where impermissible motor temperatures are involved or the
temperature of the TC 100 casing is too high, the motor
current is reduced. This can lead to dipping below the set
rotation speed switchpoint and results in the turbomolecular
pump being switched off.
LED on the TC 100 glows red: Collective malfunction.
LED
Cause
Glows green
– power unit OK
– Function ”pumping station ON”
– carried out
Flashes green
– power unit OK
– Pumping station OFF
Blinks green
– Mains power supply failure
Glows red
– Collective malfunction
(for example, run-up time error,
over-temperature, turbopump
or TC 100)
– Switching output 2 active (low)
Blinks red
– Warning
(e.g. mains power supply
failure)
➡
Close fore-vacuum and venting connection by blank
flanging.
➡
Place the pump vertically on its rubber feet.
➡
In rooms with moist or aggressive atmospheres, the turbo-
pump must be air-sealed in a plastic bag together with a
bag of dessicant, e.g silicagel.
If the pump has been shut down for
3 years
, the
bearing must be changed (please contact
PFEIFFER Service).
4.7. Operations With The DCU 001/DCU 150
Operations with the DCU 001 or DCU 150 should be carried out
in accordance with the relevant Operating Instructions
PM 800 477 BN (DCU description) and
PM 800 547 BN (operating the pump with the DCU).
☞
PLEASE NOTE
Differentiated malfunction and warning signals
are only possible with the use of the DCU.
☞
PLEASE NOTE
4.5. Shutting Down For Longer Periods
If aggressive or hazardous gases are pumped
there is a danger of personal injury resulting
from coming into contact with process gases.
Before removing a turbopump from the system,
first:
– Vent the turbopump with a neutral gas or dry air.
– Ensure that there is no residual process gas in the system
nor in the feeder lines.
If the turbopump is to be shut down for more than a year:
➡
Remove turbopump from the system.
➡
Change the lubricant reservoir (see Section 7.1.).
Lubricant TL 011 should not be used when the-
re have been no operations for 2 years.
➡
Close the high vacuum flange and evacuate the turbopump
via the fore-vacuum flange.
➡
Vent turbopump via the venting connection with nitrogen
or dry air.
☞
PLEASE NOTE