Servicing
Optional Zero/Span and Sample Solenoid Valve Replacement
7-26 Model 48i Instruction Manual Thermo Electron Corporation
1. Turn instrument OFF, unplug the power cord, and remove the cover.
2. Remove the capillary from the inlet elbow fitting on the pump head.
3. Clean with less than 0.015-inch diameter wire or replace.
4. Install the capillary by following the previous steps in reverse.
Figure 7-13. Cleaning or Replacing the Capillary
Optional Zero/Span
and Sample Solenoid
Valve Replacement
Use the following procedure to replace the solenoid.
Equipment Required:
Solenoid
Philips screwdriver
Wrench, 9/16-inch
1. Turn instrument OFF, unplug the power cord, and remove the cover.
2. Unplug the solenoid electrical connector from the measurement
interface board.
Capillary
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.
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