power unit can also be placed in the carry cases provided. In all instances the power unit/canister assembly should
be kept upright during use to ensure correct operation - the power unit will display a warning if the unit is over tilted.
Please take care when transporting the device not to drop the system onto a hard surface, bend the canister
connector or pull on the dressing tube excessively. If the connector is broken a visual and audible alarm will
be activated and the canister connector should be replaced. Due to contamination the broken connector should be
disposed of as clinical waste.
5.2 Operation Controls
N.B. Before any operation buttons will function (except MUTE), the power unit must be unlocked* - press and hold the
UNLOCK button until the power unit beeps and the lock symbol clears from the display screen.
The operation buttons on the face of the power unit (Fig. 2) provide the following functions.
D H G - H E A LT H C A R E . C O M
7
U S E R M A N U A L
RUN/STOP
Press to invoke stand-by mode prior to running power unit. Press again to run power unit. Press and
hold whilst power unit is running (and unlocked) to cease operation and return to stand-by mode. In
battery operation the power unit will then power off after 1 minute of inactivity. If using mains power, switch off by
disconnecting power cable from power unit or turning off mains power.
VACUUM LEVEL
Vacuum level can be adjusted when in stand-by mode and for up to 1 minute after last button
operation when power unit is running using the UP and DOWN arrow buttons. Pressure can be
adjusted in 5mmHg increments between 10mmHg and 180mmHg according to treatment requirements, the most
widely used being between 60-80mmHg. The power unit will begin operation at the default pressure of 80mmHg. The
selected vacuum level is shown on the display screen.
MUTE
Press to silence the sounder and to clear the message from the display screen. The MUTE button can also
be used to force power-off in stand-by mode.
THERAPY MODE
The power unit offers a choice of continuous or intermittent therapy modes. On power-on, the power unit
will default to continuous therapy mode. To switch between therapy modes, press and hold the THERAPY
MODE button until power unit beeps to confirm change of mode. When in intermittent therapy mode, the power unit
will provide vacuum therapy for periods of 5 minutes followed by a 2 minute rest period. The selected therapy mode
is displayed on the power unit screen and can be altered in either stand-by or (unlocked) run modes.
Fig. 2
RUN/
STOP
VACUUM
LEVEL
MUTE
THERAPY
MODE
UNLOCK/
LIGHT