Edwards EXT200/200H GCMS, Инструкция по эксплуатации, Страница: 25 / 38

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Installation
B756-01-880 Issue K
The EXT Split Flow Pump should be electrically bonded to earth using the connection provided. Refer to the
instruction manual supplied with the controller to complete the electrical installation.
3.5.1 EXDC controllers
An EXDC Controller requires connection to a suitably rated power supply. The EXDC Controller is designed to allow a
pumping system to operate in a fully automatic system.
3.5.2 EXC controllers
The EXC Controller provides the electrical supply to the Split Flow Pump through the pump-to-controller cable.
Connect and lock the bayonet connectors at the ends of the cable to the mating connectors on the pump and the EXC
Controller (if applicable). If the cable is disconnected at the pump, the EXC Controller output is switched off, making
the cable safe. However, if the cable is disconnected from the EXC Controller it should be noted that the other end
of the cable is still connected to the pump. Refer to the appropriate warning in
Section 3.5 regarding exposure to
hazardous voltages whilst the pump is still rotating.
The EXC Controller is designed to allow a pumping system to be configured in a variety of ways, from a basic manually
operated system to a fully automatic system with remote control.
3.6 Cooling
3.6.1 Introduction
CAUTION
The pump must be cooled by forced air or water cooling to prevent damage to the bearing.
If the pump will be located inside an enclosure, ensure that there is adequate ventilation so that the ambient
temperature around the pump does not exceed 40 °C.
Use water cooling in addition to forced air cooling in any of the following operating conditions:

Backing pressure > 10 mbar.

Backing pressure > 8 mbar (800 Pa) and interstage flow > 30 sccm (0.5 mbar l s
-1
, 50 Pa l s
-1
).

Backing pressure > 5 mbar (500 Pa) and interstage flow > 80 sccm (1.3 mbar l s
-1
, 130 Pa l s
-1
).

Ambient temperature > 35 °C.
WARNING
The customer must ensure appropriate routing of cables and pipework to avoid slip/trip hazards.
WARNING
Do not remove the EXDC Controller/EXC Controller cable from the pump until the pump is
completely at rest. To do so could expose personnel to hazardous voltage and potentially damage
the EXDC/EXC Controller.
WARNING
The customer must provide an emergency stop circuit to turn off power to the EXDC controller.