Carbolite ABF 8/28 - Manual (Page 7)

MF58 – 1.06 7
3.0 ABF O PERATION
This section describes how to heat the chamber up to temperature,
3.1 Switches – Control Panel
The main control switches are on the left hand side of the control panel (photo 3.1).
The Instrument Switch cuts off power to the controllers, other devices (including the fan) and
heating circuit contactors.
3.2 General Operating Notes
Heating element life is shortened by use at temperatures close to maximum. Do not leave the
ABF at high temperature when not required. The maximum temperature for the main chamber is
800°C , and for the after burner 950°C.
Light weight ceramic fibre insulation can easily be marked by accidental contact. Some fine
cracks may be visible on the surface of the insulation, or may develop in the surface of the
chamber due to the progressive shrinkage of the insulation materials. Cracks are not usually
detrimental to the functioning or the safety of the furnace.
The chimney and extraction ducting should always be correctly fitted and unobstructed: see
sections 2.3 & 2.4.
See sections 4.1 and 4.2 for information about maintenance.
The product has been design for ashing items that containing no more than 40g of carbon.
Baskets are provided with a loading handle. These can be used to load and unload the items
being ashed. Make sure you have a safe surface, which must not be inflammable, available to
place the basket when unloading.
3.1 Operator Safety
The ABF incorporates a safety switch which interrupts the heating element circuit when the door
is opened.
Wear appropriate safety clothing: gloves, a mask and safety glasses are recommended.
Photo 3.1
extraction fan
switch
Instrument switch
main chamber
heater lamps
afterburner
controller
main chamber
temperature
controller
afterburner
heater lamp
main chamber
over temperature
controller