Shelolab SVAC1E Manual de usuario

Installation - Operation Manual

SVAC1E SVAC2E / SVAC1E-2 SVAC2E-2

ECONOMY VACUUM OVENS

110 – 120 Volts 220 – 240 Volts

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Pictured on cover left to right:

SVAC1E, SVAC2E

The SVAC1E and SVAC2E ovens require a 110 – 120-volt NEMA 5-15R power outlet.

The SVAC1E-2 and SVAC2E-2 require a CEE7 220 – 240-volt power outlet compatible

with CEE7/7 cords to plug in to.

Warning:This product contains chemicals, including triglycidyl isocyanurate, known to the State of

California to cause cancer as well as birth defects or other reproductive harm. For more information,

go to www.P65Warnings.ca.gov.

¡Advertencia!Este producto contiene sustancias químicas, incluido el triglicidil isocianurato, que el

estado de California sabe que causa cáncer, así como defectos de nacimiento u otros daños

`reproductivos. Para obtener más información, visite www.P65Warnings.ca.gov.

Avertissement!Ce produit peut vous exposer à des produits chimiques, dont l'isocyanurate de

triglycidyle, reconnu par l'État de Californie pour provoquer le cancer, des anomalies congénitales

ou d'autres problèmes de reproduction. Pour plus d'informations, visitez le site

www.P65Warnings.ca.gov.

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Economy Vacuum Ovens

110 – 120 Voltage — SVAC1E SVAC2E

220 – 240 Voltage — SVAC1E-2 SVAC2E-2

Part Number (Manual): 4861658

Revision: November 22, 2021

ISO CERTIFIED MANUFACTURER

SHEL LAB is a brand of Sheldon Manufacturing, INC, an ISO 9001

certified manufacturer.

These units are vacuum ovens intended for professional, industrial, or educational use where the

preparation or testing of materials is done at an ambient air pressure range of 22.14 – 31.3 inHg (75 –

106 kPa), and no flammable, volatile or combustible materials are being heated.

These models are compliant with the following standards:

CAN/CSA C22.2 No. 61010-1:2012

CAN/CSA C22.2 No. 61010-2-010/R:2009

UL 61010-1:2012

UL 61010A-2-010:2002

EN 61010-1:2010

EN 61010-2-010:2003

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TABLE OF CONTENTS

INTRODUCTION ........................................................................................................................................................ 5

Read this Manual....................................................................................................................................................................5

Safety Considerations and Requirements ......................................................................................................................5

Contacting Assistance ..........................................................................................................................................................6

Manufacturing Warranty ......................................................................................................................................................6

Engineering Improvements..................................................................................................................................................6

Vacuum Supply Required .................................................................................................................................................... 7

Gaskets .....................................................................................................................................................................................8

RECEIVING YOUR UNIT ........................................................................................................................................... 9

Inspect the Shipment.............................................................................................................................................................9

Orientation Images .............................................................................................................................................................. 10

Record the Data Plate Information.................................................................................................................................. 13

INSTALLATION .........................................................................................................................................................15

Installation Procedure Checklist ...................................................................................................................................... 15

Required Ambient Conditions........................................................................................................................................... 16

Required Clearances........................................................................................................................................................... 16

Power Source Requirements .............................................................................................................................................17

Lifting and Handling ............................................................................................................................................................ 18

Leveling................................................................................................................................................................................... 18

Install the Oven ..................................................................................................................................................................... 19

Deionized and Distilled Water.......................................................................................................................................... 19

Installation - Clean and Disinfect..................................................................................................................................... 19

Shelving Installation............................................................................................................................................................ 20

Connect to the Vacuum Supply ....................................................................................................................................... 21

GRAPHIC SYMBOLS ............................................................................................................................................... 23

CONTROL OVERVIEW ............................................................................................................................................ 25

OPERATION.............................................................................................................................................................. 27

Operating Precautions........................................................................................................................................................27

Theory of Operation ........................................................................................................................................................... 28

Put the Oven into Operation ............................................................................................................................................ 30

Evacuating the Oven Chamber....................................................................................................................................... 32

Select Approximate Oven Temperature....................................................................................................................... 33

Temperature Matching ...................................................................................................................................................... 34

Maximum Obtainable Vacuum........................................................................................................................................ 36

Pressure Units Conversion Chart.................................................................................................................................... 36

USER MAINTENANCE............................................................................................................................................. 37

Cleaning and Disinfecting..................................................................................................................................................37

Maintaining Atmospheric Integrity ................................................................................................................................. 38

Electrical Components....................................................................................................................................................... 38

Vacuum Pump Maintenance............................................................................................................................................ 38

Storage................................................................................................................................................................................... 38

UNIT SPECIFICATIONS .......................................................................................................................................... 39

Weight..................................................................................................................................................................................... 39

Dimensions............................................................................................................................................................................ 39

Capacity ................................................................................................................................................................................. 40

Shelf Capacity by Weight.................................................................................................................................................. 40

Vacuum .................................................................................................................................................................................. 40

Temperature .......................................................................................................................................................................... 41

Power....................................................................................................................................................................................... 41

PARTS LIST............................................................................................................................................................... 43

Replacement Gaskets........................................................................................................................................................ 44

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INTRODUCTION

Thank you for purchasing a SHEL LAB oven. We know you have many choices in today’s competitive

marketplace when it comes to constant temperature equipment. We appreciate you choosing ours. We

stand behind our products and will be here if you need us.

READ THIS MANUAL

Failure to follow the guidelines and instructions in this user manual may create a protection

impairment by disabling or interfering with the unit safety features. This can result in injury or death.

Before using the unit, read the manual in its entirety to understand how to install, operate, and

maintain the unit in a safe manner. Keep this manual available for use by all operators. Ensure all

operators are given appropriate training before the unit begins service.

SAFETY CONSIDERATIONS AND REQUIREMENTS

Follow basic safety precautions, including all national laws, regulations, and local ordinances in your

area regarding the use of this unit. If you have any questions about local requirements, please

contact the appropriate agencies.

SOPs: Because of the range of potential applications this unit can be used for, the operator or their

supervisors must draw up a site-specific standard operating procedure (SOP) covering each

application and associated safety guidelines. This SOP must be written and available to all operators

in a language they understand.

Intended Applications and Locations: SVAC economy ovens are engineered for constant temperature

drying, curing, and baking applications under vacuum in professional, industrial, and educational

environments. The ovens are not intended for use at hazardous or household locations.

Power: Your unit and its recommended accessories are designed and tested to meet strict safety

requirements.

•The unit is designed to connect to a power source using the specific power cord type

shipped with the unit.

•Always plug the unit power cord into a protective earth grounded electrical outlet

conforming to national and local electrical codes. If the unit is not grounded properly, parts

such as knobs and controls can conduct electricity and cause serious injury.

•Do not bend the power cord excessively, step on it, or place heavy objects on it.

•A damaged cord can be a shock or fire hazard. Never use a power cord if it is damaged or

altered in any way.

•Use only approved accessories. Do not modify system components. Any alterations or

modifications to your unit not explicitly authorized by the manufacturer can be dangerous

and will void your warranty.

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INTRODUCTION

CONTACTING ASSISTANCE

Phone hours for Customer Support are 6 am – 4:30 pm Pacific Coast Time (west coast of the United

States, UTC -8), Monday – Friday. Please have the following information ready when calling or

emailing Customer Support: the model number, serial number, and part number (see page 13).

support@sheldonmfg.com

1-800-322-4897 extension 4

(503) 640-3000 extension 4

FAX: (503) 640-1366

Sheldon Manufacturing, INC.

P.O. Box 627

Cornelius, OR 97113

USA

MANUFACTURING WARRANTY

For information on your warranty and online warranty registration please visit:

•sheldonmanufacturing.com/warranty

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

VACUUM SUPPLY REQUIRED

The oven does not come with a vacuum pump. A pump must be separately purchased for

the oven.

Consult a vacuum pump specialist to determine the pump type best suited to your baking

application. The correct selection of a vacuum pump is critical for evacuating the chamber to

the level required for your vacuum baking applications in a timely manner. The nature of the

sample or product being heated should drive the selection of the pump, including the types

of chemicals outgassed during the baking process. Common pump types include Chemical

Duty PTFE Dry, Standard Duty Dry, Compact Direct-Drive, and specialty pumps for Corrosive

gases. The selection of an application-specific pump can improve the overall oven

performance and minimize pump maintenance costs.

Use of an oil trap plumbed on the vacuum line between the oven and the pump is strongly

recommended. The trap protects the pump from any oils outgassed during your baking

procedure. This extends the life of the pump. All maintenance and instructional information

should be obtained from the pump manufacturer if not shipped with the pump. Use of

clamps to secure vacuum tubing is also recommended.

Pumping Capacity

Ensure that the selected vacuum pump is rated to a minimum flow capacity of 5 cubic feet per

minute (cfm) greater than the chamber volume.

Model Chamber Capacity Minimum Pump Capacity Minimum Pump Capacity

SVAC1Es 0.56 CuFt 6 cfm 170 Liters per Minute

SVAC2Es 1.67 CuFt 7 cfm 198 Liters per Minute

Minimum Vacuum Draw

To seal completely, the oven chamber must be under a minimum vacuum draw of:

inHg mmHg

3.0 76

Building

Vacuum Supply

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INTRODUCTION

GASKETS

Gaskets are non-warranty, high-wear consumable items subject to compression forces, heat, and

outgassed byproducts. Heavy usage rates may necessitate frequent replacements. The manufacturer

strongly recommends keeping a spare gasket on hand during operation.

Each oven comes with a replaceable silicone gasket installed on the chamber liner. This gasket seals

against the chamber door to maintain the vacuum integrity of the chamber. The gasket must be

replaced periodically and is rated to 230°C. It is vulnerable to acids and solvents. The manufacturer

also offers for sale Viton®, fluorosilicone, and Buna gaskets. See page 44 for information on gasket

type suitability for baking applications.

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RECEIVING YOUR UNIT

INSPECT THE SHIPMENT

•When a unit leaves the factory, safe delivery becomes the responsibility of the carrier.

•Damage sustained during transit is not covered by the manufacturing defect warranty.

•Save the shipping carton until you are certain that the unit and its accessories function

properly.

When you receive your unit, inspect it for concealed loss or damage to its interior and exterior. If you

find any damage to the unit, follow the carrier’s procedure for claiming damage or loss.

1. Carefully inspect the shipping carton for damage.

2. Report any damage to the carrier service that delivered the unit.

3. If the carton is not damaged, open the carton and remove the contents.

4. The unit should come with an Installation and Operation Manual.

5. Verify that the correct number of accessories has been included.

6. Carefully check all packaging for loose accessories before discarding.

Included Accessories:

SVAC1Es

2 Shelves

SVAC2Es

2 Shelves

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RECEIVING YOUR UNIT

ORIENTATION IMAGES

Door Latch

Shelves

Chamber Door

Chamber Gasket Seal

Control Panel

Oven Chamber

SVAC1Es

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