Connect a gauge
When a gauge is first connected the display shows "ID" followed by a number to identify the
new gauge.
If the gauge is an Active Strain Gauge (ASG), the display then goes to ASG range select,
otherwise the display reverts to showing the pressure reading. If the gauge type is not
supported the display shows "???". When no gauge is connected the display shows "---".
Figure 6 Gauge screen
ASG range select
When an ASG is connected the display changes to select the ASG range. 1000 mbar is assumed
by default, and the display flashes "1.0
3
".
Press the NEXT key to select between 1000 and 2000 mbar, then press the ENTER key to
confirmed the selection.
Gauge ON/OFF control
Gauges which support ON/OFF control (e.g. AIM gauges) can be turned ON and OFF using the
ENTER key.
When first connected the gauge is in the OFF state and the display shows "OFF". When the
gauge is turned on the display will show "Str" whilst the gauge is starting up, and will then
display pressure.
Gauge screen key actions
Table 5 Gauge screen key actions
Keys
Short press
Long press
START
Go to turbo screen
-
ENTER
ON/OFF control of supported gauge
or acknowledge error
-
NEXT
Go to vent control screen
Scroll through menu screens
Vent valve screen
If a TAV solenoid vent valve is connected to the turbo pump podule the operation of the valve
is controlled by the vent valve screen.
When the vent valve screen is selected, the vent LED is lit and the current vent valve control
setting is displayed. The default is "50%". The vent valve screen is not available if the turbo
pump is running.
1. Select the appropriate setting for either normally open or normally closed vent valve.
D395-94-880A - Operation
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