Carbolite ELF Series - Manual (Page 2)

ELF (B)
2
MF01 3.31
1.0 I NTRODUCTION
1.1 Models Covered by this Manual
This manual covers the Carbolite furnace models ELF 11/6B, ELF 11/14B and ELF 11/23B. The B
suffix indicates differences from earlier models, in particular that the heating element is enclosed
in an inner metal chamber, and the heating wires are partly exposed in the chamber sides and
radiate freely into the chamber. The B models were not made before mid-2001.
The B versions also allow for a simple customer adjustment to increase the air flow through the
chamber. Carbolite do not claim that this adjustment makes the furnace suitable for ashing or burn-
off applications.
The B versions may be set to operate on any single-phase voltage in the range 200-240V (or 100-
120V to order) by correct setting of the power limit parameter in the controller.
Because of model changes it is very important when ordering spares to state the furnace serial
number or otherwise to identify the model correctly.
1.2 Switches and Lights
1.3 Warning Symbols
Instrument switch: when the instrument switch is operated the temperature
control circuit is energised.
Heat Light: the adjacent light glows or flashes to indicate that power is
being supplied to the elements
DANGER of electrical shock– read any warning printed by this symbol.
DANGER – hot surface. Read any warning printed by this symbol.
WARNING: all surfaces of a furnace may be hot.
DANGER – read any warning printed by this symbol.