Carbolite VMF Series - Manual (Page 2)

AAF, GSM, VMF
2 MF06 – 3.32
1.0 D ESCRIPTIONS
The chamber furnaces covered by this manual all have some specialist feature as follows.
1.1 AAF models
The AAF Ashing Furnaces incorporate pre-heated chamber airflow. The chambers of the
AAF 11/3, AAF 12/3, AAF 11/7 and AAF 12/7 are ceramic muffles wound with resistance wire.
The model AAF 11/18 and 12/18 have chambers heated by wire spirals mounted in ceramic
carriers, isolated from the working chamber by side walls of silicon carbide.
Each AAF model is supplied with an Inconel tray complete with detached handle. The AAF 11/18
and 12/18 models have a double-decker tray arrangement.
1.2 GSM 11/7
This is a conventional muffle furnace, with a Silica chamber which gives a cleaner environment
than a standard ceramic muffle.
1.3 VMF 10/6
The Volatile Matter Furnace is designed for compliance with ISO 562. It is heated by wire
elements embedded in light weight ceramic fibre, and incorporates calibration ports to allow
insertion of thermocouple probes from the back under the crucibles.
1.4 Switches and Lights
1.5 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.