Shel lab SMO38HP-2 Manual de usuario

Installation – Operation Manual

SMO38HP-2 SMO14HP-2

HIGH-PERFORMANCE OVENS

220 – 240 Voltage

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These ovens require permanent connect wiring (also known as hardwiring) to a power supply.

Pictured on the front cover, left to right: SMO38HP-2, SMO14HP-2

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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SMO High-Performance Ovens

220 – 240 Voltage

Part Number (Manual): 4861837

Revision: July 16, 2020

Sheldon Part ID Numbers:

Model SMO14HP-2 SMO38HP-2

Part ID SLFHP1422-H SLFHP3822-H

The Part ID denotes the specific build version of the model.

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

certified manufacturer.

Safety Certifications

These units are CUE listed by TÜV SÜD America as forced air ovens 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.

The units have been tested to the following requirements:

CAN/CSA-22.2 No. 61010-1:2012

CAN/CSA-C22.2 No. 61010-2-010:2015

UL 61010-1:2012

UL 61010-2-010:2015

EN 61010-1:2010

EN 61010-2-010:2014

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TABLE OF CONTENTS

INTRODUCTION......................................................................................................................................................7

Read this Manual.................................................................................................................................................................... 7

Safety Considerations and Requirements ...................................................................................................................... 7

Contacting Assistance ..........................................................................................................................................................8

Manufacturing Warranty ......................................................................................................................................................8

Engineering Improvements .................................................................................................................................................8

Reference Sensor Device ....................................................................................................................................................9

RECEIVING YOUR OVEN ......................................................................................................................................11

Inspect the Shipment............................................................................................................................................................ 11

Orientation Images .............................................................................................................................................................. 12

Record the Data Plate Information.................................................................................................................................. 16

INSTALLATION...................................................................................................................................................... 17

Hardwire Requirement.........................................................................................................................................................17

Installation Checklist ............................................................................................................................................................17

Required Ambient Conditions........................................................................................................................................... 18

Required Clearances........................................................................................................................................................... 18

Power Source Requirements ............................................................................................................................................ 19

Power Feed Wiring.............................................................................................................................................................. 20

Lifting and Handling ........................................................................................................................................................... 20

Leveling................................................................................................................................................................................... 21

Install the Oven ..................................................................................................................................................................... 21

Deionized and Distilled Water......................................................................................................................................... 22

Installation Cleaning and Disinfecting .......................................................................................................................... 22

Shelving Installation............................................................................................................................................................ 23

GRAPHIC SYMBOLS............................................................................................................................................ 25

CONTROL OVERVIEW......................................................................................................................................... 27

OPERATION.......................................................................................................................................................... 29

Operating Precautions....................................................................................................................................................... 29

Theory of Operations ......................................................................................................................................................... 30

Put the Oven into Operation ............................................................................................................................................ 32

Set the High Temperature Limit...................................................................................................................................... 33

Setting the Constant Temperature Setpoint ............................................................................................................... 34

Temperature Programs ..................................................................................................................................................... 34

High Temperature Limit Activated ................................................................................................................................. 35

Venting the Exhaust Port................................................................................................................................................... 36

Power Exhaust Blower........................................................................................................................................................37

Data Port................................................................................................................................................................................ 39

Changing the Unit of Measurement............................................................................................................................... 39

USER MAINTENANCE ..........................................................................................................................................41

Cleaning and Disinfecting.................................................................................................................................................. 41

Door Gaskets and Chamber Integrity ........................................................................................................................... 42

Electrical Components....................................................................................................................................................... 42

Calibrating the Temperature Display ............................................................................................................................ 43

Unlocking the Temperature Controller ..........................................................................................................................47

Heating Issues — Diagnostic Questionnaire............................................................................................................... 50

UNIT SPECIFICATIONS....................................................................................................................................... 55

Weight..................................................................................................................................................................................... 55

Dimensions............................................................................................................................................................................ 55

Capacity ................................................................................................................................................................................. 55

Shelving.................................................................................................................................................................................. 56

Air Flow Performance......................................................................................................................................................... 56

Temperature Performance ................................................................................................................................................57

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Power...................................................................................................................................................................................... 58

PARTS LIST........................................................................................................................................................... 59

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TABLE OF CONTENTS

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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. Ensure all end-users are given appropriate training before the unit

begins service.

Keep this manual available for use by all end-users.

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 end-users 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 end-users

in a language they understand.

Intended Applications and Locations

SMOHP ovens are engineered for constant temperature, forced-air drying, curing, and baking

applications 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.

•Always hardwire the unit power feed to a protective 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.

•Position the unit so the end-user can quickly and easily disconnect or uncouple the power

feed in the event of an emergency.

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

•A damaged power feed can be a shock or fire hazard. Never use a power feed 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 Sheldon 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,part number, and part ID

(see page 16).

[email protected]

+1-800-322-4897 extension 4

+1-(503) 640-3000 extension 4

FAX: +1-(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

REFERENCE SENSOR DEVICE

Must be purchased separately

A reference sensor device is required for calibrating the oven temperature display.

Reference devices must meet the following standards:

•Accurate to at least 0.1°C

The device should be regularly calibrated, preferably by a third party.

Temperature Probes

Use a digital device with wire thermocouple probes that can be introduced into the unit chamber

through the door space. Select thermocouples suitable for the application temperature you will be

calibrating at.

Why Probes?

Reference readings taken outside the chamber using wire temperature probes avoid chamber door

openings. Openings disrupt the chamber temperature. Each disruption requires a minimum 1-hour wait

to allow the atmosphere to re-stabilize before continuing.

No Alcohol or Mercury Thermometers

Alcohol thermometers do not have sufficient accuracy to conduct accurate temperature calibrations.

Never place a mercury thermometer in the unit chamber. Always use thermocouple probes.

Temperature

Reference

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INTRODUCTION

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