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 single-phase power

supply.

Pictured on front cover: SMO38HP-2 (left) and SMO14HP-2 (right)

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SMO High-Performance Ovens 220 – 240 Voltage

Part number (Manual): 4861705

Revision: December 12, 2018

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

certified manufacturer.

Safety Certifications

These units are CUE listed by TÜV SÜD 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........................................................................................................................................... 5

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

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

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

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

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

Reference Sensor Device ......................................................................................................................... 7

RECEIVING YOUR OVEN ............................................................................................................................ 9

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

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

Recording Data Plate Information ........................................................................................................... 12

INSTALLATION .......................................................................................................................................... 13

Hardwire Requirement ............................................................................................................................ 13

Installation Checklist ............................................................................................................................... 13

Required Ambient Conditions ................................................................................................................. 14

Required Clearances .............................................................................................................................. 14

Power Source Requirements .................................................................................................................. 15

Power Feed Wiring.................................................................................................................................. 16

Lifting and Handling ................................................................................................................................ 16

Removing from the Pallet ........................................................................................................................ 16

Leveling ................................................................................................................................................... 17

Install the Oven ....................................................................................................................................... 17

Installation Cleaning ................................................................................................................................ 17

Install the Shelving .................................................................................................................................. 18

GRAPHIC SYMBOLS................................................................................................................................. 19

CONTROL OVERVIEW .............................................................................................................................. 21

OPERATION ............................................................................................................................................... 23

Operating Precautions ............................................................................................................................ 23

Theory of Operations .............................................................................................................................. 24

Put the Oven into Operation.................................................................................................................... 26

Set the Over Temperature Limit.............................................................................................................. 27

Over Temperature Limit Activation.......................................................................................................... 28

Set the Constant Temperature Set Point ................................................................................................ 29

Heating Profiles ....................................................................................................................................... 29

Venting the Exhaust Port ........................................................................................................................ 30

Power Exhaust Blower ............................................................................................................................ 31

USER MAINTENANCE............................................................................................................................... 33

Cleaning and Disinfecting ....................................................................................................................... 33

Door Gaskets and Chamber Integrity...................................................................................................... 34

Electrical Components ............................................................................................................................ 34

Calibrating the Temperature Display....................................................................................................... 35

UNIT SPECIFICATIONS............................................................................................................................. 41

Weight ..................................................................................................................................................... 41

Dimensions.............................................................................................................................................. 41

Capacity .................................................................................................................................................. 41

Shelf Capacity by Weight ........................................................................................................................ 42

Maximum Number of Shelves ................................................................................................................. 42

Air Flow Performance.............................................................................................................................. 42

Temperature Performance ...................................................................................................................... 43

Power ...................................................................................................................................................... 44

PARTS LIST ............................................................................................................................................... 45

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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.

Locations and Intended Applications Range

SMOHP forced-air 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.

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.

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.

•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 Technical 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 Technical Support: the model number and the serial number (see page 10).

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, Inc. 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 a wire thermocouple probe that can be introduced into the unit chamber

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

calibrating at.

Why a Probe?

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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RECEIVING YOUR OVEN

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. Carefully check all

packaging for accessories before discarding

Included accessories

Model Shelves Shelf Slides / Clips Leveling Feet

SMO14HP-2 6 24 Clips 4

SMO38HP-2 12 48 Clips 4

Shelf Types

SMO14HP-2 SMO38HP-2

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RECEIVING

ORIENTATION IMAGES

Temperature Sensor Probes

Control Panel

Exhaust Vent

Intake Vent

Chamber Gasket

Shelf Standard

Mounting Rail

SMO38HP-2

Note: The oven has one oven chamber.

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