© Edwards Limited 2009. All rights reserved.
Page 15
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INTRODUCTION
A533-23-880 Issue C
1.16
Exhaust Enclosure
The exhaust enclosure fits around the exhaust elbow and check valve (refer to Figure 1), and provides a means of
extracting the enclosure in the event of an exhaust leak from the system.
1.17
Accessories
A number of accessories are available to configure the iF system for your specific application. Refer to Section 8 for
descriptions of these accessories.
Table 1 - Safety sensors
Safety sensor
Shut-down condition
FDP pump-motor thermistor
When the thermistor in the FDP pump-motor indicates
that the temperature of the pump-motor is nominally
130
o
C
HMB pump-motor thermistor
When the thermistor in the HMB pump-motor
indicates that the temperature of the pump-motor is
nominally 150
o
C
FDP pump motor snap switch
When the thermal snap switch operates to indicate
the pump motor stator temperature is nominally
155
o
C
Water system thermistor
When the thermistor indicates that the temperature
of the water system is 60
o
C or higher.
Nitrogen supply pressure source
#
When the flow of nitrogen purge gas to the dry
pumping system is too low.
Table 2 - Explanation of menu buttons
Button
LED Colour Button Use
Normal
Green
Press this button to select the Normal display (see above).
Control
Green
Press this button to select the Control menu. You can then take control or release
control of the iF system (refer to Section 5.4).
Status
Green
Press this button to select the Status menu. In this menu, you can display the current
values of all iF system sensors.
Setup
Green
Press this button to select the Setup menu. In this menu you can: manually control the
operation of iF gas purges and gate valves fitted to the vacuum system (and connected
to the iF through an iF Interface Module with an Auxiliary Interface Card); select 'Run
til Crash'; change other display parameters (such as the pressure units used when
pressures are displayed and the timeout time). The Setup menu also allows you to
select the Service menu; in this menu, you can zero the Gas Module flow transducer
and manually operate the components of the iF system.
ENTER
-
Use this button to select a currently displayed menu option or to enter a currently
displayed parameter.
CANCEL
-
Use this button to cancel the currently displayed menu or option and return to the
previous menu or option.
Up/down
-
Use these buttons to move up or down menu options or to increase or decrease a
displayed parameter.
