Hoffrichter TRENDvent, User Manual

Page: 43 / 104

Commissioning 43
SETTING THE TUBE SYSTEM
The device is suitable for use with a valve tube system, as well as for use
with a leakage tube system. Before using the device for the fi rst time, or if
switching to a different tube system, the type of tube system to be used
must be set on the device. To do this, proceed as follows:
1. Ensure that the device is switched off.
2. Remove the cover for the air inlet by gripping the cover from below
and pulling it from the device (see Fig. 12).
3. Set the switch to the correct position:
– For the use of a valve tube system, place the switch, by gently
lifting and turning, into the lower position (see Fig. 13).
– For the use of a leakage tube system, place the switch, by
gently lifting and turning, into the upper position (see Fig. 14).
4. Replace the cover for the air inlet.
Fig. 12: Removing the air inlet cover Fig. 13: Switching to
valve tube system
Fig. 14: Switching to
leakage tube system
When you switch the device on after switching to a different tube sys-
tem, the display indicates which tube system is active. Press the OK
button to reach the patient screen.