
Operation
6.9.3 Menu
item:
„Calibrate“
Calibration
When SEARCH (
lower point
) is activated, evacuation is to the lower point. If the pressure
does not fall any further, the pressure value can be entered by using a comparison meas-
urement device and confirmed with OK. For the
upper point
the same is valid. The ambient
barometric pressure is entered. Do not confirm until the value has been established.
If the controller is integrated in a complete system or pump system (LVS), evacuation and
venting take place automatically when the stated buttons are pressed.
The calculated correction values are displayed and can be stored with Save.
CAUTION !
Ensure that the set pressure is also present at the sensor.
Designation
ILMVAC-Control
521
Control panel
at the controller
Explanation
Lower point
CL
at low pressure - pressure of comparison meas-
urement device (at lowest possible pressure, e.g.
10 mbar)
Upper point
CH
at normal pressure (high) - barometric pressure
36 Ilmvac
GmbH
115022