Greiner Vibrograf ACS921 - Venting System; Device Venting; Venting Via Activated Carbon Filter

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2.6 Venting system
2.6.1 Device venting
The ACS 921 is equipped with a venting system. This is activated when powering up and starting up (also after
standby mode). This ensures that the interior of the ACS 921 is always vented before the cleaning process be-
gins. The venting system also remains switched on during the cleaning process, thus ensuring safe operation.
Venting outlet on top of device housing
Please note: The room in which the device is used must have a ventilation system.
If this is not the case, the exhaust air must not be fed directly into the room. In this case, Greiner Vibrograf AG
offers the relevant accessories as explained below:
2.6.2 Venting via activated carbon filter
An activated carbon filter (accessory) can be mounted directly on the air outlet using a connection flange.
If an activated carbon filter is used, it must still be activated in the settings. When this is activated, the device
knows when the next filter change is due and sends a message to the user.