NOTICE
Turbopump destruction due to gases with too high molecular masses
The pumping of gases with impermissible high molecular masses leads to the destruction of the tur-
bopump.
► Make sure that the gas mode is set correctly by
[P:027]
in the electronic drive unit.
► Consult Pfeiffer Vacuum before you use gases with higher molecular masses (> 80).
Observe run-up time
Condensate or moisture from the fore-vacuum area impairs the throughput of the pumping
station and can extend the run-up time.
● After switching on, operate the pumping station for approx. 5 minutes with the gas bal-
last valve open.
Commission turbo pumping station
1. Make sure that the transport lock has been released.
2. Where applicable, ensure cooling water supply and flow rate.
3. Where applicable, ensure sealing gas supply and flow rate.
4. Provide the current supply for the product.
6.2 Switch on turbo pumping station
WARNING
Danger of death from poisoning due to toxic gases being expelled without an exhaust line
Exhaust gases and vapors are released from the turbo pumping station unhindered during normal us-
age. In the case of processes with toxic media, there is a risk of injury and danger of death due to
poisoning.
► Note the corresponding regulations for handling toxic substances.
► Toxic process gases should be safely conveyed away via an exhaust line.
CAUTION
Danger of injury from bursting as a result of high pressure in the exhaust line
Faulty or inadequate exhaust pipes lead to dangerous situations, e.g. increased exhaust pressure.
There is a danger of bursting. Injuries caused by flying fragments, the escaping of high pressure, and
damage to the unit cannot be excluded.
► Route the exhaust line without shut-off units.
► Observe the permissible pressures and pressure differentials for the product.
► Check the function of the exhaust line on a regular basis.
Switch on power supply
► Switch on the main switch.
After establishing the current supply, the DCU carries out a self-test and check of the connected units.
The duration of the self-test is approx. 20 seconds and is visualized on the display with a progress bar.
Commission pumping station
►
Switch on the turbo pumping station.
6.3 Normal operation
Operating the DCU
► When working with the DCU 002 Pfeiffer Vacuum display and control unit, please see the associ-
ated operating instructions supplied in the shipment.
Operation
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