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Operation
Gas Setup Menu
Span Concentration
3-24
Model 146i Instruction Manual
The Span Concentration screen displays the minimum and maximum
concentration for spans 1 through 5 of each gas. Minimum and maximum
values are calculated based upon the tank concentration and the mass flow
controller. The desired concentrations can be set between these two limits.
If the concentration is entered outside of the minimum or maximum
values, the message "TOO LOW" or TOO HIGH" appears on the screen.
Note Changing this valve may affect allowable limits for span flow. It is
advisable to check this setting.
In the Main Menu, choose Gas Setup > Gas A-F > Span 1-5 > Conc.
●
Span Flow
The Span Flow screen displays the minimum and maximum flows for
spans 1 through 5 of each gas. Minimum and maximum values are
calculated based upon the tank concentration and the mass flow controller.
The desired concentrations can be set between these two limits. If the
concentration is entered outside of the minimum or maximum values, the
message "TOO LOW" or TOO HIGH" appears on the screen.
In the Main Menu, choose Gas Setup > Gas A-F > Span 1-5 > Flow.
●
GAS A SPAN 1 FLOW:
>CONC
TFLOW
OPER
MODE
DIAGS ALARM
GAS A SPAN 1 CONC:
MINIMUM:00000.040 PPM
MAXIMUM:00020.000 PPM
SET
TO:00010.001
MOVE CURSOR
CHANGE VALUE
OPER
MODE
DIAGS ALARM
10.000 PPM
1000 CCM
▲
PPM ?
SAVE
Thermo Fisher Scientific
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Troubleshooting
