Shellab SVAC4-2 User Manual
VACUUM OVEN
SVAC1 SVAC1-2
SVAC2 SVAC2-2
SVAC4 SVAC4-2
Previously designated as
1425, 1425-2
1445, 1445-2
1465, 1465-2
INSTALLATION AND OPERATION MANUAL
Revised 6 / 2014
4861531
Sheldon Manufacturing Inc. P.O. Box 627 Cornelius, Oregon 97113
EMAIL: tech@Shellab.com INTERNET: http://www.Shellab.com/~Shellab
1-800-322-4897 (503) 640-3000 FAX (503) 640-1366
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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 VACUUM OPERATION
SECTION 7.0 OPERATION
SECTION 8.0 MAINTENANCE
SECTION 9.0 TROUBLESHOOTING
SECTION 10.0 PARTS LIST
UNIT SPECIFICATIONS
SCHEMATICS
REFERENCE INFORMATION
APPENDIX
These units are TUV CUE listed as vacuum 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
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INTRODUCTION
Thank you for purchasing our product. We know that in today’s competitive market place, customers have many
choices when purchasing constant temperature equipment. We appreciate your choosing our quality product. Our
continued reputation as a leading laboratory product manufacturer rests with each and every customer. Sheldon
Manufacturing, Inc. stands behind our products and want to let you know we are here if you need us.
Before you use the unit, read this entire manual carefully to understand how to install, operate, and maintain the unit
in a safe manner. Your satisfaction with the unit will be maximized as you read about its safety and operational
features.
Keep this manual on-hand so it can be used by all operators of the unit. Be sure all operators of the unit are given
appropriate training before you put the unit in service.
Note: Use the unit only in the way described in this manual. Failure to follow the guidelines and instructions in this
manual may be dangerous and illegal.
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:
Read this entire manual before using the oven.
Be sure you follow any city, county, or other ordinances in your area regarding the use of this unit.
Use only approved accessories. Do not modify system components. Any alterations or modifications to your
incubator may be dangerous and will void your warranty.
Always plug the unit’s power cord into a grounded electrical outlet 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.
Do not connect the unit to a power source of any other voltage or frequency beyond the range stated on the
power rating on the data plate of the unit.
Do not modify the power cord provided with the unit. If the plug does not fit an outlet, have a proper outlet
installed by a qualified electrician.
Avoid damaging the power cord. Do not bend it excessively, step on it, place heavy objects on it. A damaged
cord can easily become a shock or fire hazard. Never use a power cord after it has become damaged.
Do not position the equipment in such a manner as to make it difficult to disconnect power cord or coupler.
Do not attempt to move the unit while in operation or before the unit has been allowed to cool.
RECEIVING AND INSPECTION
Model Number
Serial Number
Part Number
Voltage
Section
IMPORTANT: READ THIS INSTRUCTION MANUAL IMMEDIATELY.
Your satisfaction and safety require a complete understanding of this unit, including its proper function and
operational characteristics. Be sure operators are given adequate training before attempting to put unit in
service. NOTE: This equipment must be used only for its intended application; 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. Save the shipping crate until you are sure the unit has been
delivered in good condition.
1.3 Return Shipment: If for any reason you must return the unit, contact your customer representative for
authorization. Supply the complete data plate information when requesting return authorization. Please see the
manual cover for information on where to contact customer service.
1.4 Accessories: Verify all of the equipment indicated on the Ship Kit list included with the unit. Carefully check all
packaging before discarding. The model SVAC1 (1425) / SVAC1-2 (1425-2) is equipped with two (2) deep
shelves and one (1) shallow shelf. The model SVAC2 (1445) / SVAC2-2 (144-25)is equipped with two (2) deep
shelves, one (1) shallow shelf and four (4) adjustable feet. The model SVAC4 (1465) / SVAC4-2 (1465-2) is
equipped with three (3) shelves and four (4) adjustable feet.
Recording Data Plate Information
Once you have determined the unit is free from damage, locate the data plate at the back of the unit. The data plate
indicates your unit’s model number and serial number. Record this information below for future reference.
Table 1. Data Plate Information
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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 "Vent Valve"
Indique “clapet de mise à l’air libre”
Indicates "Vacuum Gauge"
Indique “jauge de vide”
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
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.
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INSTALLATION
Section
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 circumstances these units are intended for use indoors, at room temperatures between 15 and 35C, at no
greater than 80% relative Humidity (at 25C) and with a supply voltage that does not vary by more than 10%. Installation
category is CAT-II Pollution Degree 2. Customer service should be contacted for operating conditions outside of these
limits.
3.1 Power Source: The unit power requirements are listed on the data plate. PLUG THE UNIT INTO A
3.2 Location: When selecting a site for the unit, consider conditions which may affect performance, such as heat
3.3 Lifting / Handling: These units are heavy and care should be taken to use appropriate lifting devices that are
3.4 Leveling: The unit must sit level and solidly. Models SVAC1 (1425) and SVAC1-2 (1425-2) have four (4) rubber
3.5 Cleaning: The unit chamber should be cleaned and disinfected prior to use. The operating conditions and
3.6 Shelves: See Figure below. Place items on shelves. DO NOT place items directly on the floor of the chamber.
PROPERLY GROUNDED AND RATED RECEPTACLE OF THE CORRECT STYLE. THE VOLTAGE OF THE
RECEPTACLE SHOULD NOT VARY MORE THAN 10% FROM THE DATA PLATE RATING. A separate
circuit is recommended for this unit to prevent loss of product due to overloading or circuit failures caused by
other equipment. Position the unit to allow user access to the power cord.
from radiators, ovens, autoclaves, etc. Avoid direct sun, fast-moving air currents, heating/cooling ducts, and
high-traffic areas. To ensure air circulation, allow a minimum of 30 cm between the unit and any walls or
partitions which might obstruct free air flow.
sufficiently rated for these loads. Units should only be lifted from their bottom surfaces. Doors, handles and
knobs are not adequate for 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.
feet that are already attached to the unit and are not adjustable. Leveling feet are supplied with models SVAC2
(1445) / SVAC2-2 (144-25) and SVAC4 (1465) / SVAC4-2 (1465-2) and must be installed in the four holes at the
base of the unit. With the unit standing upright, turn the leveling feet counterclockwise to raise the level of that
corner. Adjust each foot until the unit stands solid and level. If the unit must be moved, turn the leveling feet in all
the way to prevent damage while moving.
appropriate protocol will determine the correct procedure for decontamination. A typical decontamination
procedure that is adequate for many situations has been described below. As well, certain steps are listed
that will help reduce the likelihood of contamination and the necessity of decontamination. Whatever
process is appropriate, it needs to be done on a regularly scheduled basis. Depending on usage and
protocol, this may be monthly, quarterly or otherwise. Regardless of the decontamination procedure used,
certain precautions will need to be taken:
A. Always disconnect the unit from the electrical service when cleaning.
Assure all volatile or flammable cleaners are evaporated and dry before reconnecting the unit to the
power supply.
B. Special care should be taken when cleaning around sensing heads to prevent damage.
C. Do not use chlorine-based bleaches or abrasive cleaners this will modify the stainless steel interior
finish. DO NOT USE hard tools such as metal wire brushes or steel wool. Use non-abrasive
cleaners and soft tools such as plastic brushes.
D. In the event hazardous material is spilled onto or into the equipment, appropriate decontamination
must be carried out. If there is any doubt about the compatibility of decontamination or cleaning
agents with parts of the equipment or with material contained, please contact the manufacturer or
his agent. No decontamination or cleaning agents should be used which could cause a hazard as a
result of a reaction with parts of the equipment or with the material contained in it.
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8
PRECAUTIONS
Section
NOTE: THIS IS NOT AN EXPLOSION PROOF OVEN
4.1 The bottom surface of the chamber should not be used as a work surface.
4.2 Do not place or use explosive, combustible, or flammable materials in the oven.
4.3 Do not use sealed containers in the oven chamber.
4.4 Do not modify the power cord provided with the unit. If the plug goes not fit an outlet, have a proper outlet
installed by a qualified electrician.
4.5 Removal of any service panel or disconnect the unit from the electrical power source before attempting any
repairs or component replacements should be done by approved trained service personel..
4.6 If a mercury thermometer is used and breakage should occur, make sure all the spilled mercury is removed from
the chamber.
4.7 This oven is NOT suitable for use in Class I, II, or III locations as defined in the National Electric Code of the
United States of America, NFPA 70.
4.8 This oven is not intended, nor can it be used, as a patient connected device.
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CONTROL PANEL OVERVIEW
SVAC1 (1425) & SVAC1-2 (1425-2)
SVAC2 (1445) & SVAC2-2 (1445-2)
SVAC4 (1465) & SVAC4-2 (1465-2)
Watlow EZ-Zone Control
20.0
20.0
RESE T
EZ1
EZ2
2
C
CURRENT OVEN CHAMBER
TEMPERATURE
TEMPERATURE SET
POINT (YOUR DESIRED
TEMPERATURE)
INDICATES THAT THE
CONTROLLER IS POWERING THE
OVEN’S HEATER
RAMPING SYMBOL INDICATES
THAT A HEATING PROFILE IS
RUNNING
THE ADVANCE KEY SCROLLS
THROUGH MENUS AND
PARAMETER LISTS
THE DOWN ARROW KEY
ADJUSTS SET POINTS OR
CHANGES PARAMETERS
THE UP ARROW KEY
ADJUSTS SET POINTS
OR CHANGES PARAMETERS
THE RESET KEY
SCROLLS 1 PAGE BACK
THE EASY ZONE KEY 1
INITIATES AND ENDS
HEATING PROFILES
Watlow Controller Details
On some older Watlow
Controllers the Reset
button may be labeled with
an infinite ∞ symbol rather
than RESET.
Section
5.1 POWER SWITCH: This is the main power I/O (On/Off) switch. It must be in the ON position before any
systems are operational.
5.2 MAIN TEMPERATURE CONTROL: Tthe Main Temperature control is a Watlow EZ-Zone Controller consisting
of the digital display and UP/DOWN arrow pads for adjusting set point temperatures and calibration, and four
buttons for setting programs and parameters.
5.3 HEATING LIGHT: This green indicator light is on whenever the MAIN TEMPERATURE CONTROL has
activated the heating elements to reach and maintain set point.
5.4 SET OVER TEMPERATURE: The Over Temperature Limit Control is completely independent of the MAIN
TEMPERATURE CONTROLLER and guards against malfunctions which would allow temperature to rise past
the Temperature set point. Setting adjustments for this control require a flat-edged tool to eliminate accidental
changes. The control has a dial that is marked gradient scale and is adjustable across this scale. If the
chamber temperature esxceeds over the set point, the Set Over Temperature will limit the rise to approximately
10C above the set point selected.
5.5 OVER TEMPERATURE LIGHT: This red indicator light is on whenever the temperature has exceeded the set
point of the Over Temperature Limit Control and has activated and taken control of the oven. Under normal
operating conditions this pilot light should never be on.
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5.6 FUSE: Mounted on the rear wall next to the power cord, provides protection for the unit’s electrical circuitry
against over current conditions. The fuse, when blown, must be replaced before the unit can continue operation.
Match the fuse ratings with those on the fuse data plate.
5.7 VACUUM: This adjustment handle allows opening and closing of the vacuum valve to an external vacuum
pump or system.
5.8 VENTILATION: This adjustment handle controls the amount of ventilation to the chamber as when using a
purge gas. This valve must be closed (completely clockwise) when the unit is in the vacuum mode.
5.9 VACUUM GAUGE: This digital gauge indicates the chamber operating vacuum. Your unit may be equipped
with either a SUNX or Autonics device.
See Appendix for instructions on how to set the “unit” scale.
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