Memmert TTC 256 Temperature test chamber (Generation 2003) - Manual (Page 64)

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Maintenance and Servicing
8.6 Replacing the interior lamps
1. Undo the four fixing screws of the glass plate
on the ceiling of the interior and remove the
glass plate ( Fig. 43 ).
2. Replace the defective lamp with a standard
new 25 watt halogen lamp.
3. Screw the glass plate back on. Make sure
that the seal is properly mounted.
8.7 Repairs and Service
Warning!
After removing covers, voltage-carrying parts may be exposed. You
may receive an electric shock if you touch these parts. Disconnect
the mains plug before removing any covers. Any work inside the
unit may only be performed by qualified electricians.
Repairs and service work are described in a separate service manual.
Fig. 43 Interior lighting