Checking The Indirect Status Indicator (Yellow Led) With Appliance Closed - Weinmann OXYMAT 3 Servicing And Repair Instructions

5.3.11 Checking the indirect status indicator (yellow LED) with appliance closed

The purpose of this check is to establish whether the status indicator that warns if a leak that is likely to cause
a drop in the oxygen concentration is working properly. This is done by an internal program that creates an
artificial leak which results in the alarm being triggered.
1. Switch on the OXYMAT 3 at the On/Off
switch .
2
An internal leak test will run for about 1 minute.
The green operating indicator
this is in progress.
2. With the appliance running, set a flow of
4 l/min at the top of the ball.
To start the test program, proceed as follows:
3. Remove power cord
the appliance.
4. Wait for the acoustic power failure alarm to
sound (two groups of five tones – – – – –).
5. Switch off the OXYMAT 3 at the On/Off
switch . Do not connect the power cord
2
again.
6. Switch OXYMAT 3 on again at On/Off
switch .
2
7. Wait for the acoustic power failure alarm to
sound again (two groups of five tones
– – – – –).
8. Switch off the OXYMAT 3 at the On/Off
switch .
2
The yellow status indicator
up. If it does not, repeat the procedure.
9. Connect the power cord again.
10. Switch on the OXYMAT 3 at the On/Off
switch .
2
The following LED indicators appear:
– green operating indicator
– red fault indicator
– yellow status indicator
The program then runs an internal leak check
routine:
– pressure is built up within 20 s. The green
operating indicator
– the pressure is checked for about 20 s with
the compressor switched off.
An artificial leak is created in the OXYMAT 3, and
this results in the oxygen concentration falling be-
low 82 %.
flashes while
20
from the wall socket or
10
must now light
19
lights up
20
lights up briefly
18
lights up briefly.
19
flashes.
20
19
O / I O
2
20
Oxygen appliance!
Increased
fire risk!
11. Check that the yellow status indicator
while this is happening.
If the status indicator does not light up, either:
– you have not set the flow to exactly 4 l/min
or
– the status indicator is faulty.
12. Switch off the OXYMAT 3 at the On/Off
switch , then switch it on again.
2
The test program is now deactivated and the
OXYMAT 3 is in normal operating mode.
O/ I
2
18
is on
19
15
Functional check