Chapter 8 Maintenance & Cleaning; Thermocouple Replacement - Thermo Scientific Lindberg/Blue M Mini-Mite TF55030 Installation And Operating Manual

Mini-mite Tube Furnace
Maintenance & Cleaning
CAUTION : Maintenance should only be performed by trained personnel.
WARNING : Disconnect furnace from main power before attempting any
maintenance to furnace or its controls.
WARNING : Before maintaining this equipment, read the applicable SDS (Safety
Data Sheets). SDS is provided with the unit.
WARNING : When installing, maintaining or removing the refractory insulation, the
following precautions will minimize airborne dust and ceramic fiber:
Keep personnel not involved in maintenance out of the area.

Use a good vacuum to clean area and equipment. Do not use compressed air.

Use NIOSH high efficiently respirator (3M #8710 or equivalent).

Wear long sleeve clothing, gloves, hat and eye protection to minimize skin and eye

contact. Do not wear contact lenses.
Thoroughly wash self after work is complete.

Launder work clothing separate from other clothes and thoroughly clean laundering

equipment after use. If clothing contains a large amount of dust and/or ceramic
fiber, dispose of rather than clean.
Promptly place used ceramic fiber parts and dust in plastic bags and dispose of

properly.

Thermocouple Replacement

WARNING : Disconnect furnace from main power before attempting any
maintenance to furnace or its controls.
NOTE For optimal performance, the thermocouple should be replaced once a year. In
some situations a more frequent replacement schedule is recommended. S.br on the
controller display indicates a broken thermocouple.
Refer to Figure 3 "Thermocouple Replacement" as you perform the following procedure:
1. Disconnect the main power.
2. Open the latch.
Maintenance & Cleaning |
Chapter 8
304243H02 | 8-48