Servicing
Back Pressure Regulator Replacement
7-50
Model 146
i
Instruction Manual
Thermo Fisher Scientific
Back Pressure
Regulator
Replacement
Use the following procedure to replace the back pressure regulator.
Equipment Required:
Back pressure regulator
Wrenches, 5/32 and 1/2-inch
Flatblade screwdriver
Philips screwdriver
1. Turn instrument OFF, unplug the power cord, and remove the cover.
2. Remove plumbing.
3. Loosen four (4) captive screws and remove the assembly.
4. Remove the pressure transducer.
5. Remove the back pressure regulator handle.
6. Remove two (2) screws holding the regulator to the bracket.
7. Remove the back pressure regulator.
8. Install a new back pressure regulator and calibrate.
9. After calibration, tighten the locking nut securing the position of the
back pressure regulator handle.
10. Remove flow controller assembly.
Equipment Damage
Some internal components can be damaged by small
amounts of static electricity. A properly grounded antistatic wrist strap must
be worn while handling any internal component.
Содержание 146i
Страница 1: ...Model 146i Instruction Manual Dynamic Gas Calibrator Part Number 102482 00 30Jan2008 ...
Страница 4: ......
Страница 16: ...Contents xii Model 146i Instruction Manual Thermo Fisher Scientific ...
Страница 148: ......
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 ...