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Operation
Service Menu
Gas Flow Calibration
Gas Flow Calibration
Solenoid Select
3-88
Model 146i Instruction Manual
ZERO AIR DRIVE 5%:
STD FLOW :
VOL FLOW:
CHANGE VALUE
OPER
MODE
The Gas Flow Calibration menu is used to calibrate the gas flow controller
at 5, 20, 35, 50, 65, 80, and 95 percent of full-scale. Using a NIST
traceable flow meter, the accuracy of the controller can be calibrated to
about ± 1%, as opposed to the ± 2% accuracy rating when shipped from
the manufacturer. The gas flow calibration is visible only when the
instrument is in service mode. For more information of the service mode,
see
"Service
Mode" earlier in the chapter.
Note This adjustment should only be performed by an instrument service
technician.
▲
In the Main Menu, choose Service > Gas Flow Calibration.
●
GAS FLOW CAL:
>SOLENOID
5% FS
20% FS
35% FS
50% FS
65% FS
80% FS
OPER
MODE
95% FS
The Gas Flow Calibration Solenoid Select is used to select the solenoid that
is active during the gas flow controller calibration. Solenoid choices
include: Solenoid A, B, or C, and Solenoid D, E, or F (if installed).
In the Main Menu, choose Service > Gas Flow Calibration > Solenoid.
●
00.500 SLM
00.501
LPM ?
MOVE CURSOR
SAVE
DIAGS ALARM
A
0.500 SCCM
2.000 SCCM
3.500 SCCM
5.000 SCCM
6.500 SCCM
8.000 SCCM
DIAGS ALARM
9.500 SCCM
Thermo Fisher Scientific
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Troubleshooting
