Carbolite GVC Series - Manual (Page 10)

G range
10 MF48 -1.18
4.0 M AINTENANCE
4.1 General Maintenance
No routine maintenance is required. The outer surfaces may be cleaned with a damp cloth. Do not
allow water to enter the interior of the case, tube or control box. Do not clean with organic
solvents.
4.2 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.
These items can be supplied by Carbolite.
Depending on the controller, the controller manual may contain calibration instructions.
4.3 After Sales Service
Carbolite’s service division (Carbolite 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 Carbolite Engineering Services or Carbolite see the back page of this manual.
4.4 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.
Models GHA, GVA: Each kit comprises one thermocouple, one solid state relay, and a heating
element of each wattage (normally 2 elements, but 1 in the case of model -/300).
Models GHC, GVC: Each kit comprises two thermocouples of different length, one solid state
relay, and two heating elements (1 of each wattage).
When ordering spares please quote the model details: model type and serial number.