Servicing
Pressure Regulator(s) Adjustment
7-52
Model 146
i
Instruction Manual
Thermo Fisher Scientific
3. Connect a source of zero air to the zero air bulkhead connector and the
GAS A bulkhead fitting (located on the rear panel).
4. Activate the Service mode. Refer to
, then return to the next step in this procedure.
5. From the Main Menu, press
to scroll to Diagnostics, press
, scroll to
Instrument Configuration,
press
, and enable
all appropriate options.
6. Set all parameters that apply as follows:
Note
To acquire maximum flow setting, go to Service > Flow Control
Selection >
Zero Scale
, and use the zero flow controller zero scale value
listed as the appropriate input for GAS A.
7. If the instrument includes an output pressure regulator, reduce the
output pressure to zero on the gauge.
8. Set the back pressure regulator to indicate a flow of 150 sccm on the
digital flow meter.
9. Change the GAS A flow rate to 400 sccm and observe the digital flow
meter to verify that the flow rate remains greater than 125 sccm.
10. Disconnect the digital flow meter and all associated plumbing,
reconnect the instrument plumbing and tighten securely.
11. Set GAS A to OFF and set the output pressure regulator to 10 psig.
GAS A
Maximum flow (see Note)
ZERO
0.000 PPM
PERM OFF
0.000 PPM
OZONE OFF
0.0%
PHOT OFF
Содержание 146i
Страница 1: ...Model 146i Instruction Manual Dynamic Gas Calibrator Part Number 102482 00 30Jan2008 ...
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Страница 188: ...Troubleshooting Service Locations 6 26 Model 146i Instruction Manual Thermo Fisher Scientific ...
Страница 258: ...System Description I O Components 8 16 Model 146i Instruction Manual Thermo Fisher Scientific ...
Страница 272: ...9 14 Model 146i Instruction Manual Thermo Fisher Scientific Figure 9 4 Rack Mount Option Assembly ...
Страница 273: ...Thermo Fisher Scientific Model 146i Instruction Manual 9 15 Figure 9 5 Bench Mounting ...
Страница 274: ...9 16 Model 146i Instruction Manual Thermo Fisher Scientific Figure 9 6 EIA Rack Mounting ...
Страница 275: ...Thermo Fisher Scientific Model 146i Instruction Manual 9 17 Figure 9 7 Retrofit Rack Mounting ...
Страница 276: ...Optional Equipment Mounting Options 9 18 Model 146i Instruction Manual Thermo Fisher Scientific ...