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Pressure Calibration
Thermo Fisher Scientific
GAS FLOW CAL SOL SELECT:
Gas Drive
The Gas Drive screen is used to calibrate the gas-air mass flow controller
using a NIST traceable flow meter as a reference. The zero drive 5, 35, 50,
65, 80, and 95% FS screens function the same way.
In the Main Menu, choose Service > Gas Flow Calibration > 5, 20, 35,
●
50, 65, 80, or 95% FS.
GAS DRIVE 5%:
The Pressure Calibration menu is used to calibrate the pressure sensor to
zero, span, or restore factory default values. The pressure calibration is
visible only if the photometer option is installed and when the calibrator is
in service mode. For more information on the service mode, see
Mode" earlier in this chapter.
The pressure sensor's zero counts and span slope are displayed on the
menu.
Note This adjustment should only be performed by an instrument service
technician.
In the Main Menu, choose Service > Pressure Calibration.
●
CURRENTLY:
SOLENOID A
SET TO:
SOLENOID B ?
CHANGE VALUE
SAVE VALUE
OPER
MODE
DIAGS ALARM
STD FLOW :
010.22 SCCM
VOL FLOW :
010.24
MOVE CURSOR
CHANGE VALUE
OPER
MODE
DIAGS ALARM
▲
SCCM ?
SAVE
Model 146i Instruction Manual
Operation
Service Menu
"Service
3-89
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Troubleshooting
