Thermo 49i - Intensity Check

Operation
Service Menu
3-70 Model 49i Primary Standard Instruction Manual Thermo Fisher Scientific
Note This adjustment should only be performed by an instrument service
technician. 
• In the Main Menu, choose Service > Detector Calibration.
Intensity Check The Intensity Check menu is used to manually control the flow of reference
or sample gas through either Cell A or Cell B. This enables the intensity and
noise reading of each detector to be determined with either reference or
sample gas flow. Selecting any of these menu items will disturb the analog
outputs.
• In the Main Menu, choose Service > Intensity Check.
Intensity A/B Check The Intensity A Reference Gas screen (read only) switches the solenoid
valves so that reference gas is flowing through Cell A. The intensity and
noise reading are displayed. The Intensity B Reference Gas screen functions
the same way. Also, the Intensity A and Intensity B Sample Gas screens
function the same way (only with sample gas instead of reference gas).
• In the Main Menu, choose Service > Intensity Check > Int A or B Ref
or Sample.
DETECTOR CALIBRAITON:
CELL A RAW INT: 76988 HZ
CELL B RAW INT: 67079 HZ
CELL A FACTOR: 1.000
CELL B FACTOR: 1.000

CALC/SAVE NEW RECORDS
RANGE AVG DIAGS ALARM
INTENSITY CHECK:
>INT A REFERENCE GAS
INT A SAMPLE GAS
INT B REFERENCE GAS
INT B SAMPLE GAS
RANGE AVG DIAGS ALARM