background image

 

AAF, OAF, GSM, VMF 

 

 

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 air flow. The chambers of the 
AAF 11/3 and AAF 11/7 are ceramic muffles wound with resistance wire. The model AAF 11/18 
has a chamber 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 
model has a double-decker tray arrangement. 

1.2 

OAF models 

 

The OAF 11/1 is an older version of the AAF 11/7, being functionally similar but without the 
more compact case of the AAF. The OAF 11/2 is a two-chamber model heated by slab elements 
which form the chamber floors, also having air flow through the chamber.  

1.3  GSM 11/7 

This is a conventional muffle furnace, with a Silica chamber. This gives a cleaner environment 
than a standard ceramic muffle. 

1.4 

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. 

1.5 

Switches and Lights 

 

 

 

 

 

 

 

Supply Light: when the furnace is connected to the electrical supply the 
light in the adjacent switch glows 

Heat Light: the adjacent light glows or flashes to indicate that power is 
being supplied to the elements 

Heat Light: the adjacent light glows or flashes to indicate that power is 
being supplied to the elements 

1.6 

Warning Symbols 

 

 

 

 

 

 

 

 

 

DANGER – hot surface. Read any warning printed by this symbol.

WARNING: all surfaces of a furnace may be hot. 

DANGER of electrical shock– read any warning printed by this symbol.

DANGER – read any warning printed by this symbol. 

2.0 

MF06 

Содержание CARBOLITE AAF Series

Страница 1: ...d to the electricity supply CONTENTS Section page 1 0 Descriptions 2 2 0 Installation 3 3 0 Operation 4 4 0 Maintenance 7 5 0 Repairs Replacements 8 6 0 Fault Analysis 14 7 0 Circuit Diagrams 15 8 0 F...

Страница 2: ...r flow through the chamber 1 3 GSM 11 7 This is a conventional muffle furnace with a Silica chamber This gives a cleaner environment than a standard ceramic muffle 1 4 VMF 10 6 The Volatile Matter Fur...

Страница 3: ...models and AAF 11 7 may alternatively be ordered for use on two phases out of a 3 phase with neutral supply The model AAF 11 18 may also be ordered for 3 phase supply see section 2 4 Check the furnace...

Страница 4: ...perature controller see the controller manual OAF 11 2 the slave controller should be set to an offset temperature of zero see 3 2 Overtemperature option only If the overtemperature controller has not...

Страница 5: ...AAF OAF GSM VMF 3 3 MF06 5...

Страница 6: ...used to heat materials which emit smoke or fumes regularly heat it up to maximum temperature for one hour without load to burn away the soot Materials such as case hardening compounds and other react...

Страница 7: ...respondence 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 wi...

Страница 8: ...Guidance Note EH46 We can provide further information on request Alternatively our service division can quote for any repairs to be carried out at your premises or ours 5 3 Temperature Controller Rep...

Страница 9: ...AAF OAF GSM VMF 5 5 MF06 9...

Страница 10: ...section above which refers to the thermocouple colour coding Unfasten the electrical connections to the inner chamber brick box and remove the thermocouple and sheath see thermocouple replacement ins...

Страница 11: ...ermocouple cables from their terminal blocks Straighten all the element tails Note that these become brittle with use Unscrew the screws fixing the metal back piece from the inner chamber and withdraw...

Страница 12: ...at the furnace is controlling properly to rule out the possibility that the previous element failed because of a fault elsewhere in the control circuit 5 9 VMF 10 6 Element Replacement See section 5 2...

Страница 13: ...s good emission of some fumes may be expected 5 11 Fuse Replacement Fuses are marked on the circuit diagram section 7 0 with type codes e g F1 F2 A list of the correct fuses is given in section 8 1 De...

Страница 14: ...o lights glowing on the controller The SUPPLY light is ON The controller may be faulty or not receiving a supply due to a faulty switch or a wiring fault The SUPPLY light is OFF Check the supply fuses...

Страница 15: ...d PE L N F2 F1 SSR F3 F3 safety switches A heat on e l e m e n t s for AAF 11 18 see diagram 7 4 7 2 OAF 11 2 single phase 7 3 Higher Voltages e g 254V For single phase models of 254V or above a contr...

Страница 16: ...AAF OAF GSM VMF 7 4 16 MF06...

Страница 17: ...n t s e l e m e n t s N L L N L N thermocouple Fuses or EMC filters Supply Terminals Circuit no 3 Circuit no 2 N L N L N L3 L2 L1 N PE L Circuit no 1 3 phase neutral A model made to this diagram can...

Страница 18: ...Customer fuses Required if no supply cable fitted Recommended if cable fitted See rating label for amperage see table below for fuse rating Model Phases Volts Supply Fuse rating AAF 11 3 1 phase 200 2...

Страница 19: ...l 41 41 541 5877 Fax 41 41 541 5878 Email General Information Sales info kesn ch Accounts Department accounts kesn ch USA O ce 233 Rogue River Highway 425 Grants Pass Oregon 97527 5429 USA Tel 1 503 2...

Отзывы: