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Related Manuals for shelolab SMO5CR-2
Summary of Contents for shelolab SMO5CR-2
- Page 1 Clean Room Oven 220 – 240 Voltage Installation and Operation Manual SMO5CR-2...
- Page 2 P a g e...
- Page 3 SHEL LAB Clean Room Oven 220 - 240 Voltage Installation and Operation Manual Part Number (Manual): 4861580 Revision: November 10, 2017 This oven requires permanent connect wiring (also known as hardwiring. It does not connect to a wall power source using a plug-in power cord. These units are TÜV listed as high performance 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 –...
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Page 4: Table Of Contents
TABLE OF CONTENTS INTRODUCTION ............................5 General Safety Considerations ......................... 5 Engineering Improvements ........................6 Contacting Assistance ..........................6 Temperature Reference Sensor Device ....................6 RECEIVING YOUR OVEN ..........................7 Inspecting the Shipment ..........................7 Recording Data Plate Information ......................7 Orientation .............................. -
Page 5: Introduction
INTRODUCTION Thank you for purchasing a Sheldon Manufacturing Clean Room Oven. We know that in today’s competitive marketplace, customers have many choices when it comes to constant temperature equipment. We appreciate you choosing ours. Our continued reputation as a leading laboratory product manufacturer rests with your satisfaction. -
Page 6: Engineering Improvements
INTRODUCTION NGINEERING MPROVEMENTS 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. -
Page 7: Receiving Your Oven
RECEIVING YOUR OVEN Before leaving our factory, all Clean Room Ovens are packaged in high-quality shipping materials to provide protection from transportation-related damage. When an oven leaves our factory, safe delivery becomes the responsibility of the carrier. Damage sustained during transit is not covered by the oven’s warranty. -
Page 8: Orientation
RECEIVING RIENTATION Permanent Connect Wire Braid Back Panel 14 gauge, 6 inches (15 cm) External Power Outlet Fuse Holders Nitrogen Gas Inlet Note: The external power outlet type varies by country and voltage. Intake Vent Control Panel Exhaust Vent Power Switch Exhaust Vent Valve Intake Vent Valve Control... -
Page 9: Installation
INSTALLATION Installation of an SMO5CR-2 requires permanent connect wiring (commonly known as hardwiring), and must be performed by a qualified electrical technician. All other installation steps can be performed by the end user. EQUIRED MBIENT ONDITIONS This oven is intended for use indoors, at room temperatures between 15°C and 40°C (59°F and 104°F), at no greater than 80% Relative Humidity (at 25°C / 77°F). -
Page 10: Power Source Requirements
INSTALLATION OWER OURCE EQUIREMENTS When selecting a location for the oven, check that each of the following requirements are satisfied: • The oven must be positioned so that all operators have access to the power feed disconnect in case of emergencies. The Disconnect must be in close proximity to the equipment and within easy reach of the operator. -
Page 11: Lifting And Handling
INSTALLATION IFTING AND ANDLING The oven is heavy. Use appropriate lifting devices that are sufficiently rated for these loads. Follow these guidelines when lifting the oven: • Lift the oven only from its bottom surface. • Doors, handles, and knobs are not adequate for lifting or stabilization. •... -
Page 12: Shelving Installation
INSTALLATION HELVING NSTALLATION The horizontal airflow within the chamber moves from the HEPA filter housing on the right-hand side of the chamber, to the large holes on the left side. Place the shelves so they do not obstruct the duct holes on the left in order to maximize airflow across the shelf space. 1. -
Page 13: Graphic Symbols
GRAPHIC SYMBOLS The oven is provided with multiple graphic symbols on its external and internal surfaces. The symbols identify hazards and the functions of the adjustable components, as well as important notes found in the user manual. Symbol Definition Indicates that you should consult your user manual for further instructions. Indique que l'opérateur doit consulter le manuel d'utilisation pour y trouver les instructions complémentaires. - Page 14 GRAPHIC SYMBOLS 14 | P a g e...
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Page 15: Control Panel Overview
Programmed Operations section on page 27). The EZ2 button does not have a function in the SMO5CR-2. The green advance button is used to scroll forward through menus and parameters lists. The reset button is used to scroll the display back to a previous page or menu while programing heating profiles. - Page 16 CONTROL PANEL OVERVIEW Vent Valves The SMO5CR-2 comes provided with two vent valve controls on its front control panel. These open or close the intake and exhaust valves located on the top of the unit. 16 | P a g e...
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Page 17: Operation
OPERATION Safe operation of the oven is dependent on the actions and behavior of the oven operators. Operating personnel must read and understand the Operating Precautions in this section prior to operating the oven. The operators must follow these instructions to prevent injuries and to safeguard their health, environment, and the materials being treated in the oven, as well as to prevent damage to the oven. -
Page 18: Theory Of Operations
OPERATION HEORY OF PERATIONS To achieve the oven’s stated operation specs, the vents must be fully closed. Operating the oven with the vents open impacts the oven chamber temperature uniformity and stability. This may or may not speed drying rates, depending on the nature of your samples or product. During normal operations the vents are intended to be opened only while the product or samples are cooling. - Page 19 OPERATION Heating Profiles The Watlow controller can store up to four heating profiles, each with ten steps. Please see the Programed Operations section on page 27, and the Watlow EZ-Zone Profile Programing Guide for more details. A profile can be launched whenever the unit is running in manual mode. Heating profiles should allow adequate time for the oven chamber to heat to the first temperature in the profile, prior to continuing to the second step of the profile.
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Page 20: Preparing The Oven For Use
OPERATION REPARING THE VEN FOR Preform the following steps to prepare the oven for use after installing it in a new workspace environment. Note that it will take approximately 13 hours to run the bur-in procedure for the HEPA filter. Optional: If you will be performing a temperature display accuracy verification as part of your set up, Sheldon Manufacturing recommends introducing the temperature probe of your temperature reference device into the oven chamber now, prior to powering the oven. -
Page 21: Set The Over Temperature Limit
OPERATION ET THE EMPERATURE IMIT This procedure sets the Over Temperature Limit backup system. Normally the system is set 5°C above the highest set point temperature you will be using during your current application or process. Always set at least 5°C above the hottest temperature of a heating profile. Note: If this is the first use of the oven, set the Over Temperature Limit to 325°C or higher to prepare to help ensure the OTL system will not interfere with the Burn-In procedure. -
Page 22: Hepa Filter Burn-In
OPERATION HEPA F ILTER A HEPA filter must be burned in prior to its first use. The HEPA filter will fill with gas and produce significant smoke during the burn-in. The oven’s intake and exhaust vents must be open throughout the procedure. - Page 23 OPERATION Burn-In Heating Profile The table below shows the burn-in process as a programed heating profile for the Watlow controller in a 25°C ambient environment. Please consult the Programing Guide – Watlow EZ-Zone Controller Heating Profiles document for the details of how to program a heating profile. Step Step Type Set Point...
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Page 24: Temperature Accuracy Verification
OPERATION EMPERATURE CCURACY ERIFICATION Note: Performing an accuracy verification of the temperature display requires a temperature reference device. Please see the Reference Sensor Devices entry on page 6 for device requirements. Optional: A verification of the temperature display accuracy may be carried out when preparing the oven for use, if required by your laboratory or production protocol. - Page 25 OPERATION Note: If you have not done so already, set the OTL limit to 325°C to prevent the OTL heating cutoff from interfering with the verification process. Please see the Set Over Temperature procedure on page 21. Verifying the Temperature Display Accuracy 1.
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Page 26: Closed Vents
OPERATION LOSED ENTS The unit is intended to be run with both vents closed in ordered to achieve its stated operating temperature specifications. The unit can be run with one or both vents open, however, the oven may not achieve its stated chamber uniformity, stability, or heating or recovery times. Drying times are dependent on the nature of your product or samples, as well as the volume placed in the oven chamber. -
Page 27: Programmed Operations
OPERATION ROGRAMMED PERATIONS The Watlow controller can hold four (4) ten-step heating profiles. Additionally, profiles may be combined by programing profile steps sequentially to run as a single profile of between two (2) and forty (40) steps. Please see the Programing Guide – Watlow EZ-Zone Controller Heating Profiles document that comes included with the oven for instructions on how to program heating profiles. -
Page 28: Purge Port
OPERATION Activating and Deactivating the Power Exhaust To activate the power exhaust as part of a heating profile step, do the following: While selecting the parameters for the step, choose Event 1 On (“Ent1” “on”). a. The Event 1 parameter is located after the Time Step 1a parameter when scrolling through a step menu using the green Advance Key. -
Page 29: User Maintenance
USER MAINTENANCE Warning: Disconnect the unit from its power supply prior to performing maintenance or services. Avertissement: Avant d'effectuer toute maintenance ou entretien de cet appareil, débrancher le cordon secteur de la source d'alimentation. LEANING AND ISINFECTING If a hazardous material or substance has spilled in the unit, immediately initiate your site’s Hazardous Material Spill Containment protocol. -
Page 30: Electrical Components
MAINTENANCE Disinfecting Disinfect the oven if algae, mold, bacteria, or other biological contaminants are an issue. For maximum effectiveness, disinfection procedures are typically performed after cleaning. Keep the following points in mind when disinfecting the oven: • Turn off and unplug the unit to safeguard against electrical hazards. •... -
Page 31: Replacing The Hepa Filter Assembly
MAINTENANCE HEPA F EPLACING THE ILTER SSEMBLY To replace the HEPA filter assembly, it is necessary to remove or at least partly remove the door gasket. Replacing the HEPA filter assembly is an opportune time to replace the door gasket. Note: Door removed in illustrations for clarity. - Page 32 MAINTENANCE Mounting Bracket Screw HEPA Filter Pin Nut and Washer 6. Loosen but do not remove the six (6) mounting bracket screws on the right air duct. a. This creates play (looseness) in the mounting bracket that will make it easier to slide out the HEPA filter. 7.
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Page 33: Calibrate The Temperature Display
MAINTENANCE ALIBRATE THE EMPERATURE DISPLAY Note: Performing a temperature display calibration requires a temperature reference device. Please see the Reference Sensor Devices entry on page 6 for device requirements. Temperature calibrations are performed to match the temperature display to the actual air temperature inside the oven chamber. - Page 34 MAINTENANCE Temperature Calibration Reference Device 1. Once the chamber has stabilized with no fluctuations of 0.2˚C or greater, compare the reference temperature device and chamber temperature display readings. a. If the readings are the same, or the difference between the two (2) falls within the acceptable range of your protocol, the display is accurately showing the chamber temperature.
- Page 35 MAINTENANCE Temperature Calibration (Continued) 4. Advance through the Operations menu to the Temperature Calibration page. a. Push the green Advance button repeatedly unit “i.CA” appears in the green middle display and a number value in the red top display. Calibration Page Adjust the number value in the top display to match the offset value, using the arrow buttons.
- Page 36 MAINTENANCE Temperature Calibration (Continued) Reference Device 8. Once the chamber has stabilized (no fluctuations of 0.2˚C or greater) for a half hour, compare the reference temperature device and oven temperature display readings. a. If the readings are the same, or the difference between the two (2) falls within the acceptable range of your protocol, the display is now accurately showing the chamber temperature.
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Page 37: Unit Specifications
UNIT SPECIFICATIONS The SMO5CR-2 is a 220 - 240 voltage unit. Please refer to the oven’s data plate for individual electrical specifications. Technical data specified applies to ovens with standard equipment at an ambient temperature of 25°C and a voltage fluctuation of ±10%. The temperatures specified are determined in accordance to factory standard following DIN 12880 respecting the recommended wall clearances of 10% of the height, width, and depth of the inner chamber. -
Page 38: Temperature
UNIT SPECIFICATIONS EMPERATURE All temperature performance data for 25°C ambient conditions Range Uniformity Stability Ambient + 20 to 306°C + 2.5°C @ 110° 0.3°C Heat Up Time to 150°C 25 minutes Recovery to 150°C 6 minutes after closing the door* *After a 30 second door opening IRFLOW ERFORMANCE... -
Page 39: Replacement Parts
Chamber Gasket Shelf Slide Silicone (unit of sales is per foot, requires 11 feet) 3450546 5121189 Door Gasket SMO5CR- Shelf SMO5CR-2 2 Silicone (unit of sales is per foot, requires 11 feet) 5121195 3450587 Fuse 20 Amp Power Exhaust Blower... - Page 40 P.O. Box 627 Cornelius, OR 97113 support@sheldonmfg.com sheldonmanufacturing.com 1-800-322-4897 (503) 640-3000 FAX: 503 640-1366...
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