ELF (B)
M
AINTENANCE
6.1 General Maintenance
No routine maintenance is required other than removal of soot deposits mentioned in 3.2 and the
occasional replacement of consumable items.
The furnace outer surface may be cleaned with a damp cloth. Do not allow water to enter the
interior of the case or chamber. Do not clean with organic solvents.
6.2
Calibration
After prolonged use the controller and/or thermocouple could require recalibration. This would be
important for processes that require accurate temperature readings or that use the furnace close to
its maximum temperature. A quick check using an independent thermocouple and temperature
indicator should be made from time to time to determine whether full calibration is required.
Carbolite can supply these items.
See also the instructions for calibrating the controller, section 4.14.
6.3
After-Sales Service
Carbolite’s service division (Thermal Engineering Services) has a team of Service Engineers
capable of repair, calibration and preventive maintenance of furnace and oven products at our
customers’ premises throughout the world. We also sell spares by mail order. A telephone call or
fax often enables a fault to be diagnosed and the necessary spare part despatched.
Each furnace has its own record card at Carbolite. In all correspondence please quote the serial
number, model type and voltage given on the rating label of the furnace. The serial number and
model type are also given on the front of this booklet when supplied with a furnace.
To contact Thermal Engineering Services or Carbolite see the back page of this manual.
6.4 Recommended Spares Kits
Carbolite can supply individual spares, or a kit of the items most likely to be required. Ordering a
kit in advance can save time in the event of a breakdown.
Each kit comprises one thermocouple and sheath, one solid state relay, one door insulation piece,
and one complete heating chamber.
When ordering spares please quote the model details as requested above.
7.0
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Summary of Contents for ELF 11/14B
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