Operation
Alarms Menu
Thermo Fisher Scientific
Model 49
i
Primary Standard Instruction Manual
3-63
Flow A and B
The Flow A screen displays the current sample flow reading in cell A and
sets the minimum and maximum alarm limits. Acceptable alarm limits
range from 0.4 to 1.6 LPM. If the pressure reading 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. The Flow B screen
functions the same way.
•
In the Main Menu, choose Alarms >
Flow A
or
Flow B
.
Min and Max Flow Limits
The Minimum Flow A alarm limit screen is used to change the minimum
flow A alarm limit. The minimum and maximum flow A and flow B screens
function the same way.
•
In the Main Menu, choose Alarms > Select Flow >
Min
or
Max
.
•
Use
and
to increment or decrement the numeric value.
•
Press
to save set to value as actual value.
PRESSURE:
ACTUAL MIN: 200.0 mmHg
SET MIN TO: 250.0 mmHg ?
©ª
INC/DEC
SAVE VALUE
RANGE AVG DIAGS ALARM
FLOW A:
ACTUAL 0.608 LPM
>MIN 0.400 LPM
MAX 1.400 LPM
RANGE AVG DIAGS ALARM