Thermo Scientific 146i, Instruction Manual

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Servicing
Permeation Oven Replacement
7-46 Model 146 i Instruction Manual Thermo Fisher Scientific
Permeation Oven
Replacement
Use the following procedure to replace the permeation oven.
Equipment Required:
Permeation oven
Flatblade screwdriver
Wrenches, 1/4-inch and 7/16-inch
1. Turn instrument OFF, unplug the power cord, and remove the cover.
2. Disconnect all electrical connections.
3. Disconnect the gas fittings.
4. Remove the two (2) screws holding the oven to the floor plate and
remove the oven.
5. Remove oven glass chamber from oven and install in new oven.
a. Release the latches on the sides of the oven cover and remove cover.
b. Remove glass chamber assembly by loosening (not removing)
knurled screw, located at the top of the chamber, and gently pulling
assembly upward. Completely remove assembly from oven
(
Figure 7-14 ).
c. Separate glass chamber from top assembly by twisting and gently
pulling glass away from top ( Figure 7-14 ). Keep glass clean by using
Kimwipes or similar material to handle glass.
d. Place permeation tube in chamber.
e. Attach glass chamber to top assembly by gently pushing together
with a slight twisting motion ( Figure 7-14 ).
f. Replace glass chamber assembly into oven until top of assembly is
flush or slightly below oven top ( Figure 7-15 ).
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.