Operation
Alarms Menu
3-76
Model 48
i
Instruction Manual
Thermo Fisher Scientific
The Minimum Trigger screen allows the user to view and set the
concentration alarm trigger type to either floor or ceiling. The minimum
alarm may be programmed as a floor trigger (alarm is triggered when the
concentration falls below the minimum value) or a ceiling trigger (alarm is
triggered when the concentration goes above the minimum value).
●
In the Main Menu, choose Alarms > Select Concentration >
MinTrigger
.
MIN TRIG(CEILING/FLOOR):
ACTUAL TRIGGER: CEILING
SET TRIGGER TO: FLOOR ?
TOGGLE AND SAVE VALUE
RANGE AVG DIAGS ALARM
The O
2
Concentration Alarm screen displays the current oxygen
concentration and sets the minimum and maximum alarm limits.
Acceptable alarm limits range from 0.00 to 100.00 % with defaults of
25.00% (minimum and maximum). If the O
2
concentration goes above
either the minimum or maximum limit, an alarm is activated. This alarm is
only visible if the internal O
2
sensor option is installed.
●
In the Main Menu, choose Alarms >
O2 Concentration
.
O2 CONCENTRATION:
ACTUAL 15.02
%
>MIN 25.00
%
MAX 25.00
%
MIN TRIGGER CEILING
RANGE AVG DIAGS ALARM
The Minimum O
2
Concentration alarm limit screen is used to change the
minimum oxygen concentration alarm limit. The minimum and maximum
O
2
concentration screens function the same way.
●
In the Main Menu, choose Alarms > O2 Concentration >
Min
or
Max
.
Min Trigger
Concentration
O
2
Concentration
Min and Max O
2
Concentration Limits