Carbolite Safe-Air Guide

MF50
Installation, Operation &
Maintenance Instructions
Safe-Air
An electricalalternativetotheBunsenburner
Developed in conjunction with theUniversityofSheffield SchoolofDentistry
This manualis fortheguidance ofoperatorsoftheaboveCarboliteproduct
and should bereadbefore theunit is connectedto theelectricitysupply.
CONTENTS
section page
1.0Introduction 2
2.0Installation 2
3.0Operation 3
4.0Maintenance 3
5.0Environment 4

Safe-Air
2MF50
1.0 INTRODUCTION
1.1 TheSafe-Air
TheSafe-Airis designed foruseas asafe heatsource foravarietyofmedicaland industrial
applications where it can often replace aBunsen burner, therebyminimisingtherisk ofigniting
inflammableitems such as latexgloves. Itproduces ofstreamofair, electricallyheated to
approximately400°C. Itoperates fromastandard UK 13 Amps socket.
Thecurrentversion was introduced in late2003, and is painted white. Earlier versions were
painted lightgrey. Anydifferences relevantto theoperatorare mentioned in this manual.
1.2 Switches &Lights
1.3 Warning Symbols
2.0 INSTALLATION
2.1 Unpacking &Handling theSafe-Air
Removetheunit fromthebox, and check thatno packingremains insidethenozzle.
Do notconnecttheunit to theelectricalsupplywhileit is in its boxorwhileit is insideanyother
container. Do notplace it in its boxoranother container whilehot.
Always liftormovetheunit bytheblack grip around thecentre ofthebody. Do notliftit bythe
supplycableorbythenozzle.
2.2 Siting &Setting UptheSafe-Air
Place theunit in awell ventilated area.
Beaware thattheprocess theunit is used forcould trigger nearbysmokealarms.
Keep theunit awayfromwater orother liquids.
Avoid placingtheunit unnecessarilyon ornear inflammablematerials.
Position theunit atasafe distance fromother objects. Atleast150mm distance is recommended.
When in use, thenozzleshould face awayfromtheoperatorand fromother peoplein thevicinity.
2.3 ElectricalConnections
Theunit is designed fora240VAC1-phaseliveand neutralsupplyand is fitted with alead
terminatingin amoulded standard domestic3-pin plug, fused at3 Amps. Replacementoftheplug
orfuseshould notbenecessary, butifrequired should onlybeundertaken byan electrician or
suitablyqualified person. Theliveand neutralmustbewired with correctpolarity;thecolour
codes ofthesupplylead are:
brown=liveblue=neutralgreen/yellow=earth (ground)
Itis advisableto connecttheunit to theelectricalsupplythrough an RCDsafetydevice.
Ensure thatthepower supplyto which theunit is to beconnected is notoverloaded byother
equipment.
OFF
ON
ON/OFF Switch. Therocker switch lights up in green when theunit is
switched on.
WARNING
Theexit nozzleatthetop oftheunit gets hot.
Do nottouch theexit nozzle.

Safe-Air
MF50 3
3.0 OPERATION
3.1 Operating Cycle
Makesure theon/off switch is OFF (O), and theunit is positioned safely(see 2.2), before
connectingto theelectricalsupply.
Switch theon/off switch to ON (–). Theswitch will glowgreen and theunit will operate
immediately.
Allowtheunit to run for5-10 minutes before using.
This paragraph applies onlyto thecurrent(white)model.
Iftheunit is used forlongperiods it will occasionallyenter acoolingcyclein which theairflow
increases foraround 15 minutes, after which it will resumenormaloperation. Duringthis period
thetemperature ofthehotairwill bereduced.
Switch theunit off after use.
3.2 GeneralOperating Notes
Excessivecontinuous usecan shorten thelife oftheunit.
Theambienttemperature can affectthefrequencywith which thecoolingcycleoperates.
3.3 OperatorSafety
Theoperatorshould read this manualand observeall therecommendations in it.
Do notopen theunit, insertanythinginto it, orallowfluids to enter it. Do notoperatetheunit with
wethands.
Avoid burns caused bytouchingthenozzleorholdingahand in thehotairstream. Becarefuleven
when wearinggloves, as burns can becaused bydelayed heattransfer through aglove.
Do notusetheunit in thepresence ofpotentiallyexplosivevapour:useofthesafe-airnear volatile
materials can bedangerous.
TheSafe-Airis internallyfused, and thecurrent(white) models also feature athermaltrip and
thermalfuseto protecttheoperatorfromelectricalshock and theunit fromexcessiveheatbuild
up. Thesupplylead is fused attheplug.
4.0 MAINTENANCE
4.1 GeneralMaintenance
Do notopen theunit orattemptrepair. See section 4.3 before replacingtheplugfuse.
Ifrepairis required pleasecontactThermalEngineeringServices:contactdetails are attheend of
this manual. Pleasequotetheserialnumber fromthebaseoftheunit.
4.2 Cleaning
Switch off and disconnecttheunit before cleaning.
Clean bywipingwith adamp cloth. Do notuseorganicsolvents.
Do notallowwater to enter theunit. Allowit to drybefore reconnectingit.
4.3 Fuses
Thelineplugcontains a3 Amp 25x5mm BSstandard fuse;this protects thesupplylead. Do not
replace this fusewith oneofahigher rating.
TheSafe-Aircontains a2 Amp fuseon theliveside;this protects internalwiring.
Failure ofafuseindicates afault. PleasecontactThermalEngineeringServices iftheunit does not
work when switched on.

Thank you for reading this data sheet.
For pricing or for further information, please contact us at our UK Office, using the details
below.
UK Office
Keison Products,
P.O. Box 2124, Chelmsford, Essex, CM1 3UP, Engl nd.
Tel: [phone]
F x: [phone]
Em il: s [email protected]
Please note - Product designs and specifications are sub ect to change without notice. The user is responsible for determining the
suitability of this product.