User Manual
BW3-070/4
Page 21 of 28
9 Control of Safety functions
Test instructions
Self test at start
Connect the Control Unit to mains supply and connect the Heating Pad. Check that the mains indicator LED
blinks.
Press Start/Standby and check that the following happens in the order described below.
1.
The selected mattress mode is displayed.
2.
Clicking from the safety relay can be heard
3.
The Control Unit symbol turns green
4.
The Heating Pad symbol turns green
5.
A short "beep" is emitted
6.
The system starts operating at 37
o
C
1)
Self test in progress.
The selected mattress mode is displayed (GEL
or H2O).
NOTE
: Change of mode is now possible by pressing LEFT or
RIGHT arrow, as indicated on the display. If the mattress mode is
changed the unit will re-start the self test.
2)
Self Test Ready
. The Control Unit and the Heating Pad symbol turns
green
A short "beep" is emitted and the red alarm LED flashes one time.
The Control Units software version is displayed.
Testing the uneven Heating Pad temperature alarm in H
2
O mode.
Start the system in H2O-mode, at 37°C without any mattress placed on the Heating Pad. The
Alarm 12
should be received within 15 minutes. (Note: Alarm 08 can sometimes occur because of the first alarm).
Testing the uneven Heating Pad temperature alarm (GEL mode).
Start the system in GEL-mode, at 37°C without any mattress placed on the heating Pad. The
Alarm 14
should be received within 15 minutes. (Note: Alarm 08 can sometimes occur because of the first alarm).
Mains Power failure alarm
This test is performed on a system with Mattress and a Heating Pad.
1.
Start the warming
2.
After about one minute, select a temperature different from 37
o
C and make a note of it.
3.
Wait about 2 minutes and then disconnect the supply voltage by pulling out the mains plug.
4.
Check that the Control Unit alarm indicator starts to blink and that the acoustic alarm beeps
intermittently for at least 10 minutes
5.
Switch on supply voltage again and check that the Power alarm is displayed. Press the alarm button.
6.
Restart and check that the warming starts at the set temperature selected before the power
interruption.
