3.21
Enter the password and press
SET 4 4 ENTER
Return to the oxygen mode:
SET GAS SAMPLE
9
ENTER
The display will then show the oxygen value alternating with the parameter number of the alarm(s)
which are active. As the alarms are cleared the relevant parameter numbers will be cleared from
the display until with no alarms the oxygen reading is shown continuously.
The alternating display can be switched off by setting parameter 44 to 4.
3.8.3 Oxygen Level Alarms
There are four oxygen level alarms, two low and two high. The low alarms may be set down to
-10% 0
2
and the high alarms down to 0% O
2
. As the analyser is supplied the low alarms are set
to -10% O
2
and the high alarms to 150% O
2
. Setting the alarms to other values is done by using
the key:
ALARM and one of the appropriate keys:
Lo Lo
0
, Lo
1
, Hi
2
or Hi Hi
3
For example to set the high alarm to 90%, Enter the password and press
SET ALARM Hi
2
SAMPLE
9
0 ENTER
High alarm
parameter Alarm value
The display should show
90.00 42
42 is the parameter number for the high oxygen alarm. This is also the number which will be
displayed when the alarm goes active.
The oxygen alarm levels can be displayed without entering the password by using the DISPLAY
key.
The oxygen level alarms are self clearing when the oxygen reading returns to normal.
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