© Arun Microelectronics Ltd 2020. All rights reserved
Page 12
5.
Front panel
The rotary Function Switch has two sets of positions: for setup and operating. The
SETUP locations are labelled in orange print. The switch must be stationary for a
brief period of time before any action results.
A set of status LEDs are situated in the Status Window. The LEDs on the right
side of the window show further information about operations involving the
Ion Gauges, such as the Degas program in use. The LEDs on the left side
indicate the status of the instrument, the fans and the number of the filament
and gauge in use.
Flashing of the display or of individual LEDs either require a response by the
user or indicate an error/fault condition.
INC, DEC and ENT are pushbutton switches with tactile
feedback. They select the format of pressure display, modify
setups and change parameters before and during Ion Gauge
operation. Only press one switch at a time.
The legends above and below the display window indicate the units and the exponent scale for
interpreting the bar graph displays of Ion Gauge pressure.
LEDs indicate the status of the
four relays available for
pressure-related and Bake
control. Each LED illuminates
when the associated relay is
energised.
The units of the pressure display are indicated by one of three LEDs in
the display area. The centre orange LED indicates that mBar has been
selected, the green LED above it indicates Pascal and the green LED
below indicates Torr.
Summary of Contents for NGC3
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