Pressure Transducer Calibration - Thermo Scientific 49i Instruction Manual

Servicing

Pressure Transducer Calibration

Pressure Transducer
Calibration
7-34 Model 49i Instruction Manual
1. Turn instrument OFF, unplug the power cord, and remove the cover.
2. Disconnect plumbing from the pressure transducer assembly. Note the
plumbing connections to facilitate reconnection.
3. Disconnect the pressure transducer PRESS connector from the
measurement interface board.
4. Loosen the two pressure transducer retaining screws and remove the
pressure transducer by sliding it towards the front of the instrument.
5. Install the new pressure transducer assembly by following the previous
steps in reverse.
6. Calibrate the pressure transducer. Refer to the "Pressure Transducer
Calibration" procedure that follows.
Use the following procedure to calibrate the pressure transducer.
Equipment Required:
Vacuum pump
WARNING The service procedures in this manual are restricted to qualified
service representatives.
If the equipment is operated in a manner not specified by the manufacturer,
the protection provided by the equipment may be impaired.
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.
Thermo Fisher Scientific