13. Trouble shooting vacuum circuits.
13.1 General information.
The vacuum circuit has the following components:
- Vacuum pump
- Water drain tank
- Channel A valve
- Channel B valve
- Rhythm valve
- Vacuum PCB (with vacuum sensor).
The vacuum intensity level is limited in the following way:
- In continuous mode: max. 320 mbar +/- 10% (on maximum level)
- In pulsed mode : max. 480 mbar +/- 10% (on maximum level)
13.2 Check-up if vacuum is insufficient.
The vacuum levels are NOT adjustable. If a vacuum pressure measurement is not within the limits,
we recommend checking the following items:
Water outlet:
check whether the water outlet tube on the rear side of the unit is connected.
Pump:
Open the pump (4 screws on top of the pump) and clean the membranes with normal water.
Filter:
Replace the air filter.
Tubes:
check whether the tubes are well connected and clean (replace if necessary).
Water reservoir:
when the water outlet of the water tank is clogged, we recommend to replace the
water reservoir.
If one or more vacuum cups do not remain properly attached to the patient, check if the valves or the
output connectors are clogged.
If the output connectors are dirty, we strongly recommend to replace the four connectors at the same
time.
/ In order to avoid problems with the vacuum circuit, advise the end user to follow the instructions
below:
Clean the patient’s skin before applying the vacuum cups.
Clean the sponges after every treatment.
Use demineralised water (water without lime).
Disconnect the vacuum tubes once a week.
/ The water tank of the Guidance E/C is smaller than the water tank of the Phyaction 787 !
Phyaction Guidance E/C – service manual version 0.5 Page 51
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