Servicing
Mass Flow Controller Replacement
Thermo Fisher Scientific
Model 146
i
Instruction Manual
7-15
3. Disconnect electrical connections from the top of the flow controllers
noting their positions for reconnection (
Figure 7-4.
Replacing a Mass Flow Controller
4. Remove plumbing from flow controllers.
5. Disconnect fan electrical connector.
6. Remove four screws holding flow controller bracket to floor plate.
7. Remove flow controller assembly.
8. Remove defective flow controller from bracket by removing the two
screws holding flow controller to bracket.
9. Install new flow controller by following the above directions in reverse.
10. Leak check system and recalibrate. Refer to “Leak Test and Pump
Checkout” in this chapter.
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Страница 188: ...Troubleshooting Service Locations 6 26 Model 146i Instruction Manual Thermo Fisher Scientific ...
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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 ...
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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 ...