Thermo Scientific 49i, Instruction Manual, Page: 117 / 314

Operation
Alarms Menu
Thermo Fisher Scientific Model 49
i
Instruction Manual 3-81
Max Ozonator Level 1-5 Offset The Ozonator Level 1 Check Offset screen is used to change the maximum
check offset. The maximum ozonator level 1, 2, 3, 4 and 5 offset screens
function the same way.
• In the Main Menu, choose Alarms > Select Oz Level > Max Offset .
• Use and to move the cursor left or right.
• Use and to increment or decrement the numeric value.
• Press to save set to value as actual value.
O
3
Concentration
The O
3
Concentration screen displays the current O
3
concentration and
sets the minimum and maximum alarm limits. Acceptable alarm limits
range from 0 to 200,000 ppb. 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). If the O
3
concentration
goes beyond either the minimum or maximum limit, an alarm is activated.
The word “ALARM” appears in the Run screen and in the Main Menu.
• In the Main Menu, choose Alarms > O
3
Concentration .
OZ LEVEL 1 CHECK:
ALARM: OK
LVL 1 CONC: 0.0
RESPONSE: 0.0
>MAX OFFSET: 10.0
RANGE AVG DIAGS ALARM
LEVEL 1 CHECK OFFSET:
CURRENTLY: 10.0
SET TO: 00001
1 .0 ?
§¨
MOVE CURSOR
©ª
CHANGE VALUE
ƒ
SAVE
RANGE AVG DIAGS ALARM