Shellab SMO28-2 User Manual
Installation and
Operation Manual
SMO14-2, SMO28-2
Previously designated as
FX14-2, FX28-2
Forced Air Ovens 230 Voltage
SMO Forced Air Ovens 230 Voltage
Previously designated FX Forced Air Ovens
Installation and Operation Manual
Part number (manual): 4861581
Revision: April 29, 2014
These units are TÜV CUE listed as forced air ovens for professional, industrial, or educational use
where the preparation or testing of materials is done at approximately atmospheric pressure and no
flammable, volatile, or combustible materials are being heated.
These units have been tested to the following requirements:
CAN/CSA C22.2 No. 61010-1:2012
CAN/CSA C22.2 No. 61010-2-010 + R:2009
UL 61010A-2-010:2002
UL 61010-1:2012
EN 61010-1:2010
EN 61010-2-010:2003
IEC 61010-1:2010
IEC 61010-2-010:2003
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TABLE OF CONTENTS
INTRODUCTION ........................................................................................................................................... 4
General Safety Considerations ................................................................................................................. 4
Engineering Improvements ....................................................................................................................... 4
Contacting Assistance ............................................................................................................................... 5
RECEIVING YOUR OVEN ............................................................................................................................ 6
Inspecting the Shipment ............................................................................................................................ 6
Returning the Shipment ............................................................................................................................ 6
Recording Data Plate Information ............................................................................................................. 6
GRAPHIC SYMBOLS ................................................................................................................................... 7
CONTROL PANEL OVERVIEW ................................................................................................................... 9
INSTALLATION .......................................................................................................................................... 11
Power Source .......................................................................................................................................... 12
Location ................................................................................................................................................... 11
Lifting and Handling ................................................................................................................................ 11
Leveling ................................................................................................................................................... 11
Shelving Installation ................................................................................................................................ 13
Cleaning .................................................................................................................................................. 14
Burn In ..................................................................................................................................................... 14
OPERATION ............................................................................................................................................... 15
Operating Precautions ............................................................................................................................ 15
Setting up the Oven ................................................................................................................................ 15
Burn In: First Use .................................................................................................................................... 16
Setting the Temperature Controller Set Point ......................................................................................... 16
Calibrating the Unit .................................................................................................................................. 17
Setting the Over Temperature Limit Control ........................................................................................... 18
Setting the Timer ..................................................................................................................................... 19
Activating the Heating Cycle ................................................................................................................... 20
USER MAINTENANCE ............................................................................................................................... 21
Cleaning .................................................................................................................................................. 21
Disinfecting .............................................................................................................................................. 21
Unit SPECIFICATIONS .............................................................................................................................. 23
Weight ..................................................................................................................................................... 23
Dimensions .............................................................................................................................................. 23
Capacity .................................................................................................................................................. 23
Shelf Capacity by Weight ........................................................................................................................ 24
Temperature ............................................................................................................................................ 24
Power ...................................................................................................................................................... 24
PARTS LIST ............................................................................................................................................... 25
Parts ........................................................................................................................................................ 25
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INTRODUCTION
Thank you for purchasing a Sheldon Manufacturing SMO Forced Air Oven. We know that in today’s
competitive marketplace, customers have many choices when it comes to constant temperature
equipment. We appreciate you choosing ours. Our continued reputation as a leading laboratory
product manufacturer rests with your satisfaction. Sheldon Manufacturing, Inc. stands behind our
products, and we will be here if you need us.
These ovens are intended for professional, industrial, and educational applications. The ovens are
not intended for use at hazardous or household locations.
Before you use the oven read this entire manual carefully to understand how to install, operate, and
maintain the oven in a safe manner. Keep this manual available for use by all oven operators.
Ensure that all operators are given appropriate training before the oven begins service.
Note: Failure to follow the guidelines and instructions in this manual may create a protection
impairment by disabling or interfering with the unit’s safety features. This can result in injury
or death.
GENERAL SAFETY CONSIDERATIONS
Your oven and its recommended accessories have been designed and tested to meet strict safety
requirements. For continued safe operation of your oven, always follow basic safety precautions
including:
Follow any local or regional ordinances in your area regarding the use of this unit.
Only use the oven for its intended range of applications.
Use only approved accessories. Do not modify system components. Any alterations or
modifications to your oven may be dangerous and will void your warranty.
Always hardwire the unit’s power feed to an earth grounded electrical source that conforms
to national and local electrical codes. If the unit is not grounded, parts such as, knobs and
controls may conduct electricity and cause serious injury.
Avoid damaging the power feed. Do not bend it excessively, step on it, place heavy objects
on it. A damaged power feed can easily become a shock or fire hazard. Never use a power
feed after it has been damaged.
Do not position the equipment in such a manner as to make it difficult to disconnect or
uncouple the power feed.
Do not attempt to move the unit while in operation or before the unit has cooled.
ENGINEERING IMPROVEMENTS
Sheldon Manufacturing continually improves all of its products. As a result, engineering changes
and improvements are made from time to time. Therefore, some changes, modifications, and
improvements may not be covered in this manual. If your unit’s operating characteristics or
appearance differs from those described in this manual, please contact your Shel Lab dealer or
customer service representative for assistance.
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INTRODUCTION (CONTINUED)
CONTACTING ASSISTANCE
If you are unable to resolve a technical issue with your oven, please contact Sheldon Technical
Support. Phone hours for Sheldon Technical Support are 6am – 4:30pm Pacific Coast Time (west
coast of the United States, UTC -8). Please have the following information ready when calling or
emailing Technical Support: the model number and the serial number (see page 6).
EMAIL: tech@shellab.com PHONE: 1-800-322-4897 extension 2, or (503) 640-3000 FAX: (503)
640-1366
Sheldon Manufacturing INC.
P.O. Box 627
Cornelius, OR 97113
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Model
Shelves
Shelf Clips
Leveling Feet
SMO14-2 (FX14-2)
3
12
4
SMO28-2 (FX28-2)
6
24
4
Model Number
Serial Number
RECEIVING YOUR OVEN
Before leaving our factory, all SMO ovens are packaged in high-quality shipping materials to
provide protection from transportation-related damage.
When an oven leaves our factory, safe delivery becomes the responsibility of the carrier. Damage
sustained during transit is not covered by the oven’s warranty.
When you receive your SMO oven, inspect it for concealed loss or damage to its interior and
exterior. If you find any damage to the oven, then follow the carrier’s procedure for claiming
damage or loss.
INSPECTING THE SHIPMENT
Carefully inspect the shipping carton for damage. Report any damage to the carrier service that
delivered the SMO oven. If the carton is not damaged, open the carton and remove the contents.
The unit should come with an Installation and Operation Manual, warranty card, and a Certificate of
Compliance.
Verify that the correct number of shelves, shelf slides, and leveling feet have been included (see
the following table for quantities).
Included accessories
Carefully check all packaging before discarding. Save the shipping carton until you are certain that
the unit and its accessories function properly.
RETURNING THE SHIPMENT
If you must return the oven for any reason, first contact your service representative for a return of
material authorization (RMA). You must provide the unit’s data plate information. See Recording
Data Plate Information below.
RECORDING DATA PLATE INFORMATION
Locate the data plate on the back of the oven next to the power inlet. The data plate contains the
oven model number and serial number. Enter this information below for future reference.
Date Plate Information
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Symbol
Definition
Indicates that you should consult your service manual for further instructions.
Indique que l'opérateur doit consulter le manuel d'utilisation pour y trouver les instructions
complémentaires.
Indicates Temperature
Repère température
Indicates the Over Temperature Limit system
Indique le système de dépassement de temperature
Indicates AC Power
Repère le courant alternative
Indicates I/ON and O/OFF
I repère de la position MARCHE de l'interrupteur d'alimentation
O repère de la position ARRÊT de l'interrupteur d'alimentation
Indicates protective earth ground
Repère terre électrique
Indicates UP and DOWN respectively
Touches de déplacements respectifs vers le HAUT et le BA
Indicates a Manually Adjustable control
Indique un bouton réglable manuellement
Indicates a Potential Shock Hazard
Signale danger électrique
WEEE Directive compliant logo
Indicates the unit should be recycled (Not disposed of in land-fill)
Indique l’appareil doit être recyclé (Ne pas jeter dans une décharge)
GRAPHIC SYMBOLS
The oven is provided with multiple graphic symbols on the control panel and adjacent to the power
inlet. The symbols identify hazards and the functions of the adjustable components, as well as
important notes in the user manual.
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Symbol
Definition
Indicates the timer
Indique le minuterie
Start or Stop the Timer
Lancer ou arrêter le minuteur
Reset the Timer
Réinitialisation de la Minuterie
Indicates: Caution hot surface
Indique: Avertissement symbole de surface chaude
GRAPHIC SYMBOLS (CONTINUED)
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