Dräger 8000 IC Instructions For Use Manual page 32

Operation
Using oxygen control
It will take between 45 and 135 seconds to complete
calibration.
1 Display alternates between word SEt and measured
value 21.
Push climate sensor back into position within one
minute, or sensor alarm will occur.
2 Set value 21 flashes in display.
3 Press P or p key briefly, to confirm set value.
Or
3 press P or p key until set value required (21 to
40 vol.% O ) has been set.
2
1 Display of measured O
Controlling oxygen at over 40 vol.% O
4 Press 4 key.
5 Yellow control LED >40 % is lit.
Range of set values has been extended to 75 vol.% O
6 Press P or p key until set value required is
displayed.
Value must be set within one minute or the extended set
value range will be cancelled.
If value is re-set below 40 vol.% O
of set values is automatically cancelled.
Alarms
When deviations are greater than ±5 % between set
value and measured value for O
7 Red Alarm LED and
8 red ±5 vol.% LED flash,
9 display flashes and intermittent tone commences.
The intermittent tone can be suppressed for 10 minutes:
10 Press G key.
g
11 Yellow LED and
7 red Alarm are lit.
When measured value is within ±5 vol.% again:
±5 vol.% and Alarm LED go out.
g
Yellow LED goes out.
The intermittent tone ceases.
32
concentration.
2
2
, the extended range
2
concentration:
2
VOL.%O
1
Vol.%
VOL.%O
.
2
Vol.%
9
Vol.%
O
2
Vol.%O
2
8
Cal.
21%
2
O
2
Vol.%O
2
>40%
3
3
2
Cal.
Control
21%
2
O
2 5
Vol.%O
2
4
>40%
6
6
Cal.
Control
21%
>40%
Control
7
11
1 0
Check