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VDL (E3.1) 10/2020 Page 100/196
11.1.2 “Control on/off” menu
More functions are available via the “Control on/off” menu.
Press the Setpoint setting icon to access the “Setpoint” setting menu from Normal display.
Path: Setpoint > Control on/off
• Function “Temperature” (temperature control, chap. 11.4)
• Function “Pressure” (pressure control, chap. 11.5)
“Setpoints” menu.
Select the field “Control on/off”.
Mark / unmark the checkbox to activate / deactivate the
desired function and press the Confirm icon
11.2 Using the optional universal connection “GAS/AIR 2” for ventilation
Regularly the universal connection for inert gas / ambient air “GAS/AIR” (4) is used for ventilation.
The “GAS/AIR 2” function serves to close the valve of the standard connection “GAS/AIR” (4) and activate
the valve of the optional universal connection “GAS/AIR 2” (5), which is then used for ventilation
This allows convenient switching when both connections are used differently (e.g., for inert gas and ambient
air).
If you activate the “GAS/AIR 2” function on a chamber, which is NOT equipped with the op-
tional universal connection for inert gas / ambient air “GAS/AIR 2” (5), ventilation is no longer
possible!
Press the Setpoint setting icon to access the “Setpoint” setting menu from Normal display.
Path: Setpoint > Fixed value operation setpoints > Functions on/off
“Functions on/off” menu.
Mark the checkbox of the function “GAS/AIR 2” to acti-
vate it and press the Confirm icon.
In the “Setpoints” menu press again the Confirm icon.
The controller changes to Normal display.
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