Shellab SGO3-2 User Manual

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MICROPROCESSOR

CONTROLLED OVEN

SGO3 SGO3-2

PREVIOUSLY DESIGNATED

CE3G CE3G-2

Revised 12/2013

4861567

INSTALLATION AND OPERATION MANUAL

Sheldon Manufacturing Inc. P.O. Box 627 Cornelius, Oregon 97113

EMAIL: [e-mail] INTERNET: http://www.Shellab.com/~Shellab

2

TABLE OF CONTENTS

SECTION 1.0 RECEIVING AND INSPECTION
SECTION 2.0 GRAPHIC SYMBOLS
SECTION 3.0 INSTALLATION
SECTION 4.0 PRECAUTIONS
SECTION 5.0 CONTROL PANEL OVERVIEW
SECTION 6.0 OPERATION
SECTION 7.0 MAINTENANCE
SECTION 8.0 TROUBLESHOOTING
SECTION 9.0 PARTS LIST

UNIT SPECIFICATIONS
SCHEMATICS

These units are TUV CUE listed as gravity convection 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 61010-1:2004 + R:2005-07 + R:2008-10
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

3

RECEIVING AND INSPECTION

Section

1

Your satisfaction and safety require a complete understanding of this unit. Read
the instructions thoroughly and be sure that all users are given adequate training
before attempting to use this unit. Note: This equipment must be used only for its
intended purpose; any alterations or modifications will void your warranty.

1.1 Inspection: The carrier, when accepting shipment, also accepts responsibility for

safe delivery and is liable for loss or damage claims. On delivery inspect for visible
exterior damage, note and describe on the freight bill any damage found and enter
your claim on the form supplied by the carrier.

1.2 Inspect for concealed loss or damage on the unit itself, both interior and exterior. If
any, the carrier will arrange for official inspection to substantiate your claim.

1.3 Accessories: Verify that your accessory package is complete. All units should
have a set of four (4) Leveling feet, two (2) shelves and eight (8) shelf clips.

1.4 Return Shipment: Save the shipping crate until you are sure all is well. If for any
reason you must return the unit, contact your customer service representative for
authorization and supply data plate information. Make sure to include the model
and unit serial number. The service representatives will furnish you with a return
authorization number and address for return. Note: Make sure this return
authorization number appears on the unit packaging and shipping papers. Units
returned without proper authorization may not be accepted at the factory. For
information on where to contact Customer Service please see the manual cover.

4

GRAPHIC SYMBOLS

Symbol

Identification

Indicates that you should consult your operator’s 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 “Overtemperature Protection”

Signale un "dépassement de température"

Indicates “AC Power”

Repère "secteur AC"

Indicates "Timer".

Repère "minuteur"

Indicates “Protective Earthground”

Repère de la "terre de protection"

C

Indicates "Degrees Celsius"

Repère "degrés Celsius"

Indicates “Manually Adjustable”

Signale un élément "réglable manuellement"

Indicates “Potential Shock Hazard” behind partition

Signale un "risque potentiel d'électrocution" au-delà de la cloison.

Indicates “Unit should be recycled” (Not disposed of in land-fill)

Indique “l’appareil doit être recyclé“ (Ne pas jeter dans une décharge)

Section

2

Your oven has been provided with a display of graphic symbols which should help in
identifying the use and function of the available user adjustable components.

5

INSTALLATION

Section

3

Local city, county or other ordinances may govern the use of this equipment. If you have any questions about
local requirements, please contact the appropriate local agency. Installation may be performed by the end
user.

Under normal circumstance this unit is intended for use indoors, at room temperatures between 5 and 40
C, at no greater than 80% Relative Humidity ( at 25C ) and with a supply voltage that does not vary by more
than 10%. Customer service should be contacted for operating conditions outside these limits.

3.1 Power Source: Check the data plate for voltage and ampere requirements before making a connection.
If the requirements match your power source, plug the power cord into a grounded outlet. VOLTAGE
SHOULD NOT VARY MORE THAN 10% FROM THE DATA PLATE RATING. These units are intended
for a 50/60 Hz application. We recommend a separate circuit to prevent loss of product due to
overloading or circuit failure.

Electrical supply to the unit must conform to all national and local electrical codes.

3.2 Location: When selecting a site for the incubator, consider all conditions that may affect
performance, such as extreme heat from radiators, stoves, ovens, autoclaves, etc. Position the
unit so the end-user has access to the power plug. Avoid direct sun, fast moving air currents,
heating and cooling ducts, and high traffic areas. To ensure air circulation around the unit, allow a
minimum of 30 cm (11 13/16”) between incubator and any walls or partitions that may obstruct
free airflow and a minimum of 10 cm (4”) top clearance.

3.3 Lifting / Handling: These units are heavy and care should be taken to use appropriate lifting
devices that are sufficiently rated for these loads. Units should only be lifted from their bottom
surfaces. Doors, handles and knobs are not adequate lifting or stabilization. The unit should be
completely restrained from tipping during lifting or transport. All moving parts, such as shelves and
trays should be removed and doors need to be positively locked in the closed position during transfer
to prevent shifting and damage.

3.4 Leveling: The unit must sit level and solidly. Leveling feet (supplied) are to be installed in the holes
at the base of the oven. Turn them counterclockwise to raise the level and clockwise to lower the
level. If the unit must be moved, turn the leveling feet in all the way to prevent damage.

3.5 Cleaning: The oven's interior was cleaned at the factory, but not sterilized. Remove all interior parts
if assembled and clean the inside of the chamber thoroughly with a disinfectant that is suitable for
your application. Make sure to rinse the cleaned surface with a damp cloth, using water only, and
dry the surfaces with a clean cloth. DO NOT USE chlorine-based bleaches or abrasives as they will
damage the stainless steel surface. DO NOT USE spray cleaners that might leak through openings
and cracks and get on electrical parts or that may contain solvents that will harm the coatings. A
similar periodic cleaning is recommended.

WARNING: Never clean the unit with alcohol or flammable cleaners with the unit connected to the
electrical supply. Always disconnect the unit form the electrical service when cleaning and assure all
volatile or flammable cleaners are evaporated and dry before reattaching the unit to the power
supply.

3.6 Burning In: It is recommended that the unit go through a “burning in” process prior to operation.

This is to eliminate the smoking of protective coatings on the element. Read sections 4, 5 and 6
carefully to understand operating requirements. To burn in turn the Overtemperature Safety to
maximum and set the digital display to 200. Run for a minimum of one hour under ventilation until
smoke dissipates.

6

PRECAUTIONS

Section

4

4.1 The bottom surface of the chamber should not be used as a work surface.

4.2 This unit has been designed with a dampered vent from the chamber. In order to

work effectively and safely, some precautions will need to be taken by the
operator.

A. In most applications, the exhaust damper will need to be opened during

drying or degassing for best results.

B. THIS OVEN IS NOT DESIGNED TO HANDLE COMBUSTIBLE GASSES

AND IS NOT AN EXPLOSION PROOF UNIT. Do not place explosive,
combustible, or flammable materials into the chamber.

C. Some of the out gassed by products may be hazardous or unpleasant to

operating personnel. If this is the case, the exhausts should be positively
ventilated to the outside and dealt with according to local regulations. Your
dealer can provide you with a power exhaust which greatly helps under
these applications.

4.3 Do not operate near noxious fumes.

4.4 Do not place sealed or filled containers in the oven chamber.

4.5 Do not cut or remove the ground prong from the power cord.

4.6 Do not use a 2-prong adapter plug.

4.7 Be sure that the power supply is of the same voltage as specified.

4.8 Disconnect the unit from its electrical source before proceeding to make any

4.9 If a mercury thermometer is used for calibration and breakage should occur, all

4.10 This oven is NOT designed for the use in Class I, II, or III locations as defined by

4.11 This oven is not intended, nor can it be used, as a patient connected device.

electrical repairs or replacements.

spilled mercury MUST be completely removed from the chamber before continuing
operation.

the National Electric Code.