4861706 User Manual SMO5HP-2
Contents
1. now offers significant times savings during the procedure The probe must be rated for the temperature you will be running the oven at during the burn in see page 20 Open the intake and the exhaust vents on the oven to prepare for the initial burn in procedure Place the Power Switch in the ON position The Temperature Display will illuminate then show the controller home page Set up the oven for use by carrying out the following procedures found in the Operation section Set the Over Temperature Limit to 325 C page 19 to prevent the OTL heating cutoff from interfering with the following three procedures First User Burn In page 20 o Set the Temperature Controller Set Point to the highest temperature you will use the oven at to run the Burn In procedure manually page 19 Or o Program a heating profile to automatically run the Burn In See pages 20 and 24 as well as the Programing Guide Watlow EZ Zone Controller Heating Profiles which came with the oven Optional Perform a Temperature Display Accuracy Verification page 21 Set the Temperature Controller Set Point on the home page to your application temperature if you will be running the oven in its manual mode page 19 Otherwise program a heating profile page 24 Set the Over Temperature Limit page 19 o This time set the control to 5 C above your application s manual mode temperature or the highest temperature of your heating profile This pre2. protocol 1 2 26 Page Turn the unit off Carry out your disinfection protocol If allowed by your protocol remove all shelving Disinfect all corners Take special care not to damage the temperature sensor probes when disinfecting Disinfect the unit using commercially available disinfectants that are non corrosive non abrasive and suitable for use on stainless steel surfaces Contact your Site Safety Officer for detailed information on the disinfectants compatible with your study or production protocol LAB USER MAINTENANCE CONTINUED DOOR LATCH AND ELECTRONICS Periodically inspect the door latch trim catch and gasket for signs of deterioration Failure to maintain the integrity of the door system shortens the life span of the Oven Electrical components do not require maintenance If the oven fails to operate as specified please contact your Shel Lab distributor or Sheldon Manufacturing Technical Support for assistance DOOR GASKETS The Sheldon High Performance Oven is provided with a high temperature silicon door gasket See the Parts Section on page 29 for ordering replacement gaskets 2 Page LAB USER MAINTENANCE CONTINUED REMOVING THE CHAMBER LINER This procedure removes the ceiling liner and the side wall air ducts The liner and ducts should be removed periodically and cleaned and the surfaces beneath them cleaned Note Door removed in illustrations for clarity Do not remov
3. reference device Please see the Reference Sensor Devices entry on page 5 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 The verification compares the displayed temperature of the oven chamber with the actual temperature of the chamber air as provided by a reference sensor device Figure 4 Damper in Closed Position Figure 5 Probe End 2 inches 5cm From Shelf Surface Pre Heating If a difference between the actual and displayed temperatures is discovered perform a temperature calibration Please see the Calibrate Temperature Display procedure on page 30 in the User Maintenance section Close the Vents Both the intake and exhaust vents must be closed in order to perform an accurate temperature verification Chamber temperature uniformity and stability will be too unstable when operating with the vents open to verify the accuracy of the oven temperature display Probes A reference device sensing probe may be introduced through the through the chamber door space Use heat resistant non marking tape to secure the wires to the body of the incubator and seal any gaps in the door space The door must close and latch fully Place the sensor probe of the temperature reference device as close as possible to the geometric center of the oven chamber A thermocouple sensor probe sleev
4. 24 inches 60cm of vertical headspace clearance above the top of the oven for unobstructed airflow and cooling If the oven exhaust will be vented from the workspace through a duct or other channeling 12 inches 30cm of vertical clearance will suffice Make sure the intake and exhaust vent remain unobstructed Do not place objects on top of oven aside from the power exhaust accessory described in this manual Operating the unit outside these conditions may adversely affect the oven s temperature range uniformity and stability For conditions outside of those listed above please contact your distributor or Shel Lab Sales to explore other ovens suited to your production of laboratory environment When selecting a location to install the oven consider all conditions that can affect temperature performance For example e Ovens autoclaves and any device that produces significant radiant heat e Heating and cooling ducts or other sources of fast moving air currents e High traffic areas e Direct sunlight 9 Page LAB INSTALLATION CONTINUED POWER SOURCE REQUIREMENTS When selecting a location for the oven check that each of the following requirements are satisfied e The oven must be positioned so that all operators have access to the power feed disconnect in case of emergencies o The Disconnect must be in close proximity to the equipment and within easy reach of the operator o The Disconnect must be mark
5. 8 kg per shelf 34 Page LAB UNIT SPECIFICATIONS CONTINUED TEMPERATURE All temperature performance data for 25 C ambient conditions Range Uniformity Stability Heat Up Time to 110 C Heat Up Time to 180 C Recovery to 110 C 4 minutes after closing the door AIRFLOW PERFORMANCE Airflow performance data is for both the intake and exhaust vents fully open Per Minute Per Minute Per Minute Cubic Feet Liters Air Exchanges AC Voltage Amperage Frequency 35 Page LAB REPLACEMENT PARTS Description Parts Number Description Parts Number Adjustable Foot gii Shelf Slide N 2700512 5121189 Shelf SMO5HP 2 3450546 5121195 Door Gasket SMO5HP 2 Silicone unit of sales is per foot requires 11 feet 3450587 Fuse 20 Amp ila 3300538 Ordering Parts and Consumables Chamber Gasket Silicone unit of sales is per foot requires 11 feet Optional Power Exhaust Blower Unit 220 240 Volt 9990741 If you have the Part Number for an item you may order it directly from Sheldon Manufacturing by calling 1 800 322 4897 extension 3 If you are uncertain that you have the correct Part Number or if you need that specific item please contact Sheldon Technical Support for help at 1 800 322 4897 extension 4 or 503 640 3000 Please have the model number and serial number of the oven ready as Tech Support will need this information to match your unit with its correct
6. Calibrate as often as required by your laboratory or production protocol or regulatory compliance schedule Vents The vent dampeners must be close in order to perform an accurate display calibration Chamber temperature uniformity and stability are too disrupted when operating with the vents open to verify the accuracy of the oven temperature display Figure 6 Vent Damper Probes in Closed Position A reference device sensing probe may be introduced through the through the chamber door space Use heat resistant non marking tape to secure the wires to the body exterior and seal any gaps The door must close and latch fully Secure the wiring and cover any gaps in the door space using heat resistant non stick tape Place the sensor probe of the temperature reference device as close as possible to the geometric center of the oven chamber A thermocouple sensor probe sleeve may be taped to the shelving as long as the exposed Atala ia 2 copper end is 2 inches 5cm away from the shelf see Figure 12 An Shelf Surface exposed sensor probe in direct contact with the shelving may experience heat sinking which can result in an inaccurate temperature reading Pre Heating Verify that the oven is set to your application or baking procedures set point Let the oven heat to the set point temperature and run for at least 1 hour undisturbed in order to stabilize Temperature Stability The oven chamber is thermally stabilized
7. only approved accessories Do not modify system components Any alterations or modifications to your oven may be dangerous and will void your warranty e Always hardwire the unit s power feed to an 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 e Avoid damaging the power feed Do not bend it excessively step on it place heavy objects on it A damaged power feed can easily become a shock or fire hazard Never use a power feed after it has been damaged e Do not position the equipment in such a manner as to make it difficult to disconnect or uncouple the power feed e Do not attempt to move the unit while in operation or before the unit has cooled 4 Page LAB INTRODUCTION CONTINUED 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 CONTACTING ASSISTANCE If you are unable to resolve a technical issue with the oven please contact Sheldon Technical Support Phone hours for Sheldon Tech
8. see step 9 if a difference falls outside the acceptable range of your protocol again Reference Device DET 9 Repeat steps 2 8 up to two more times a Three calibration attempts may be required to successfully calibrate ovens that are more than 2 C out of calibration 10 If the temperature readings difference still falls outside your protocol after three calibration attempts contact your distributor or Sheldon Technical Support for assistance End of procedure LAB 33 Page UNIT SPECIFICATIONS The SMOSHP 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 All indications are average values typical for units produced in the series We reserve the right to alter technical specifications at all times Net Weight 425 lbs 325 lbs Exterior W x D x H Interior W x Dx H 35 X 30 5 x 37 5 20 5 x 20 7 x 20 By centimeters Exterior Wx D x H Interior W x D x H 88 9 x 77 5 x 95 3 52 x 52 7 x 50 8 CAPACITY Cubic Feet Liters Pounds Kilograms 50 lbs per shelf 22
9. when no fluctuations of 2 0 C or greater have been detected with the verification reference device for a minimum of 30 minutes Failure to wait for stabilization will result in an inaccurate calibration and oven temperature display reading Wait 1 Hour Procedure continued on next page 30 Page LAB USER MAINTENANCE CONTINUED Temperature Calibration Reference Device 1 Once the chamber has stabilized with no fluctuations of 0 2 C or greater n compare the reference temperature device and chamber temperature iS m 0 or display readings a Ifthe 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 The Temperature Verification procedure is now complete See step 2 if a difference falls outside the acceptable range of your protocol 2 The displ i libration e display requires calibration Reference Device a The difference also known as an error between the l LU U pare reference device and the display is an offset l b Examples of offset values Reference Sensor Oven Temp Offset Reading Display Value c Note the offset value 3 Place the controller display in the Operations selection menu Press and hold both the Up and Down Arrow buttons simultaneously for approximately 3 seconds Release the buttons when A1 appears in the Upper Display and Oper appears in the L
10. High Performance Oven 220 240 Voltage SHEL Installation and Operation Manual SMOSHP 2 Previously designated as HF4 2 Shel Lab Oven High Performance 220 240 Voltage Installation and Operation Manual Part Number Manual 4861706 Revision September 22 2015 This oven requires permanent connect wiring also known as hardwiring It does not connect to a wall power source using a conventional plug in power cord Purge Valve The SMO5HP 2 can be built with a purge valve located on the back of the unit The valve can be connected to a cylinder of nitrogen Nz or other neutral gas to purge the oven chamber This option must be ordered prior to the construction of the oven These units are TUV 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 31 3 inHg 75 106 kPa with no flammable volatile or combustible materials being heated CAN CSA C22 2 No 61010 1 2012 CAN CSA C22 2 No 61010 2 010 2004 Reaffirmed 2014 07 UL 61010 1 2012 05 UL 61010A 2 010 2002 03 EN 61010 1 2010 EN 61010 2 010 2014 Supplemented by UL 61010 2 010 2015 LAB TABLE OF CONTENTS INTRODUC TION DTH 4 General Safety Considerations eee eee 4 Engineering Improvements iii 5 Cna TAS TS I E en a A it 5 Temperature Reference Sensor Device
11. PLATE INFORMATION Locate the data plate on the back of the oven next to the power inlet The data plate contains the oven model number and serial number Enter this information below for future reference Date Plate Information Model Number Serial Number 6 Page LAB RECEIVING CONTINUED OR IENTATION Permanent Connect Wire Braid External Power Outlet 14 gauge 6 inches 15 cm Fuse Holders Note The external power outlet type varies by country and voltage Power Panel Back Intake Vent Control Panel Exhaust Power Switch Intake Vent Valve Control WS Door Latch Left wall Chamber Liner Exhaust Vent Valve Control Chamber Gasket Door Latch Chamber Ceiling Liner Outer Door Gasket Figure 1 SMO5HP 2 Oven Right Wall Chamber Liner LAB 7 Page GRAPHIC SYMBOLS CONTINUED This page left blank 8 Page LAB INSTALLATION Installation of an SMOSHP 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 REQUIRED AMBIENT CONDITIONS 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 Allow a minimum of 12 inches 30cm between the oven and any walls or partitions and
12. age LAB OPERATION CONTINUED Activating and Deactivating the Power Exhaust To activate the power exhaust as part of a heating profile step do the following O 1 While selecting the parameters for the step choose Event 1 On Ent1 on a The Event 1 parameter is located after the Time parameter when scrolling through a step menu using the green Advance Key b Use either of the Arrow Keys to toggle oF F to on 2 Press the Advance key to scroll to the next event and save Event 1 as On 3 Next time the profile runs the 220 240 volt outlet on the back of the oven will power up when the controller reaches this step 4 The plugged in power exhaust will run until the next step in which Event 1 Off is selected Ent1 oFF or until the oven shuts down 5 By default the Event 1 parameter is set to Off It must be switched to On for each successive step that you want the blower to run during the execution of the profile 25 Page LAB USER MAINTENANCE Warning Prior to maintenance or service on this unit disconnect the power feed from the power supply Avertissement Avant d effectuer toute maintenance ou entretien de cet appareil d brancher le cordon secteur de la source d alimentation CLEANING AND DISINFECTING lf a hazardous material or substance has spilled in the oven immediately initiate your site s Hazardous Material Spill Containment
13. ance 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 Sheldon Manufacturing Inc stands behind our products and we will be here if you need us These ovens are intended for professional industrial and educational applications requiring horizontal shelf space airflows The ovens are not designed for use at hazardous or household locations Before you use your oven read this entire manual carefully to understand how to install operate and maintain the oven in a safe manner Keep this manual available for use by all oven operators Ensure that all operators are given appropriate training before the oven begins service GENERAL SAFETY CONSIDERATIONS Note Failure to follow the guidelines and instructions in this manual may create a protection impairment by disabling or interfering with the unit s safety features This can result in injury or death 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 e Follow all local or regional ordinances in your area regarding the use of this unit If you have any questions about local regulations please contact the appropriate agency e Use
14. ature Verification procedure is now complete See step 2 if a difference falls outside the acceptable range of your protocol Reference Device 149 1 2 Perform a temperature calibration to match the controller display to the actual chamber temperature if a difference falls outside your protocol range a Please see 30 in the User Maintenance section End of procedure 22 Page LAB OPERATION CONTINUED CLOSED VENTS 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 OVER TEMPERATURE LIMIT ACTIVE When the oven chamber air temperature exceeds the user programed Over Temperature Limit the OTL system will depower the heating elements This is normally accompanied by a mechanical click A small 4 will show in the bottom display indicating that the controller in rerouting power away from the heating elements Two alternating alert screens will flash indicating a failure and that the Limit High One LiH1 alert has been activated The Over Temperature Limit will activate if one of two events happens e You have set the Over Temperature Limit below the temperatu
15. e On the home page use the Up and Down Arrow keys to adjust the set point in the green display to your baking application or process temperature set point Set Point at 0 C Chamber temp a Holding down an arrow key will cause the temperature to advance in 27 C increments of ten 10 rather one 1 Release the Arrow Button once you have reached your required set point There may be a brief pause before the oven starts heating a A small flashing 2 in the Watlow display indicates the temperature controller is calling for heat Step 2 Set Point End procedure adjusted to 280 C LAB 19 Page OPERATION CONTINUED The steps below help eliminate smoking from protective coatings on the heating elements when running above 150 C Perform the burn in at the highest temperature the oven will be used at 1 Open the intake and exhaust vents Oven exhaust should be positively vented outside of the oven s workspace during the Burn In 2 If you have not already done so set the Over Temperature Limit to 325 C and the temperature set point the highest operating temperature the oven will be used at 3 Run the oven for a minimum of one 1 hour at your highest operational temperature until smoke from the heating elements dissipates 20 Page LAB OPERATION CONTINUED TEMPERATURE ACCURACY VERIFICATION Note Performing an accuracy verification of the temperature display requires a temperature
16. e ambient temperature of the workspace around the oven will affect heating and cooling 16 Page LAB OPERATION CONTINUED Heating Profiles The Watlow controller can store up to four heating profiles each with ten steps Please see the Programed Operations section on page 24 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 Airflow and Applications During normal operations the internal blower fan motor pulls air out of the oven chamber through perforations on the left chamber wall The captured air is pulled up and blown across a heating element in the recirculation duct immediately above the chamber then forced down through a duct on the right side of the chamber The air exits the duct through small holes on the right chamber wall Upon leaving these holes the heated air blows horizontally across the shelf space helping to create temperature uniformity and enhance drying After crossing the shelves the air enters a duct on the left side of the chamber and is then pulled back into the heater space above the oven chamber If the intake and exhaust vents are opened some air will exit through the open exhaust vent on the top right of the unit Lost air will be replaced throug
17. e may be taped to the shelving as long as the exposed copper end is 2 inches 5cm away from the shelf see Figure 5 An exposed sensor probe in direct contact with the shelving may experience heat sinking which can result in an inaccurate temperature reading Verify that the oven is set to your application or baking procedures set point Let the oven heat to the set point temperature and run for at least 1 hour undisturbed in order to stabilize Temperature Stability detected with the verification reference device for a minimum of 30 minutes Failure to wait for The oven chamber is thermally stabilized when no fluctuations of 2 0 C or greater have been d stabilization will result in a failure to verify the accuracy of the oven temperature display reading LAB Wait 1 Hour 21 Page OPERATION CONTINUED Note If not already set to maximum set the OTL limit to its max setting 325 C to prevent the OTL cutoff from interfering with the verification process Please see the Set The Over Temperature procedure on page 19 Verifying the Temperature Display Accuracy Reference Device 1 Once the chamber temperature has stabilized compare the reference device and the oven display temperature readings iS Mi or a Ifthe 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 oven chamber air temperature The Temper
18. e oven Stand the oven upright Then adjust the foot at each corner until the oven stands level and solid without rocking To raise a foot turn it in a counterclockwise direction to lower a foot turn it in a clockwise direction Note To prevent damage when moving the oven turn each of the four leveling feet completely clockwise INSTALL THE OVEN Install the unit in a workspace location that meets the criteria discussed in the previous entries of the Installation section After wiring the oven to its power source only energize the unit for brief periods as necessary to test the wiring power feed and source INITIAL CLEANING The unit was cleaned at the factory but not sterilized Additionally it may have been exposed to contaminants en route during shipping See the Cleaning and Disinfecting topic in the User Maintenance section page 26 for more information on how to clean and disinfect the oven chamber Remove all wrappings and coverings from shelving prior to cleaning and installation 11 Page LAB INSTALLATION CONTINUED SHELVING INSTALLATION The horizontal airflow within the chamber moves from the air duct 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 duct holes in order to maximize airflow across the shelf space 1 Install shelf slide hangers on opposites of the oven by inserting the slider s tabs into the Chamber sS mounti
19. e the door from the oven 1 Remove all shelves and shelf sliders from the oven 2 Unscrew the nuts located at the top of the back wall of the oven chamber 3 Remove the chamber gasket so that there is room to pull the ceiling liner out through the door space The gasket may be fully or partially removed 4 Remove the chamber ceiling liner by pulling it out through the oven door space The liner may require some side to side motion to free up 5 Remove the right wall air duct by pulling it out through the door space 6 Remove the left wall air duct by pulling it out through the door 28 Page 1 2 3 Remove Shelves Nuts and Door Gasket 4 Ceiling Liner Removed 5 Right Air Duct Removed 6 Left Air Duct Removed LAB USER MAINTENANCE CONTINUED This page left blank 29 Page LAB USER MAINTENANCE CONTINUED CALIBRATE THE TEMPERATURE DISPLAY Note Performing a temperature display calibration requires a temperature reference device Please see the Reference Sensor Devices entry on page 5 for device requirements Temperature calibrations are performed to match the temperature display to the actual air temperature inside the oven chamber The actual air temperature is supplied by a reference sensor device Calibrations compensate for drifts in the controller as well as those caused by the natural material evolution of the sensor probe under temperature in the chamber space
20. ed as the disconnecting device for the equipment e The power source must be single 1 phase and protective earth grounded e The power source must match the voltage and ampere requirements listed on the oven data plate This oven is intended for 220 240 volt 50 60 Hz applications at 12 Amps e The power source for the oven must conform to all national and local electrical codes e Supplied voltage must not vary more than 10 from the data plate rating Damage to the oven may result if supplied voltage varies more than 10 A separate circuit is recommended to prevent possible loss of product due to overloading or failure of other equipment on the same circuit e A switch or circuit breaker must be used in the building installation The required circuit breaker is 20 Amps Fuses The oven is provided with 2 two 20 amp fuses These are located in holders adjacent to the power feed braid on the back power panel of the unit The fuses protect against overcurrent conditions related to the operation of the oven If one fuse blows the oven will shut down For safe operation the cause of a blown fuse should be determined prior to replacing it The oven is also provide with a pair 2 of 2 amp fuses installed adjacent to the external power outlet Please see the Orientation photo on page 7 The fuses protect against overcurrent conditions related to the operation of the outlet and an attached power exhaust blower If one fuse blows the outlet wil
21. h the intake vent The rate of atmosphere exchange depends on several variable factors These include ambient conditions position of the vent valves the volume of material in the oven chamber and if a power exhaust unit is connected to the exhaust vent Over Temperature Limit The Watlow controller contains a backup temperature control system with independent circuitry This system connects to a redundant temperature sensor probe inside the oven chamber The over temperature heating cutoff system is intended to be set 5 C above your application or process temperature set point In the event the oven chamber temperature exceeds the over temperature limit setting the backup system will depower the heating element This provides redundant heating control the event of a failure of the primary circuitry or the main temperature sensor probe 17 Page LAB OPERATION CONTINUED Home Page 27 C Chamber air temperature 0 C set point 18 Page PREPARING THE OVEN FOR USE Preform the following steps to prepare the oven for use after installing it in a new workspace environment 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 Please see the procedure page 21 for probe placement instructions Placing the probe
22. ht up power switch controls all power to the oven It must be in the illuminated ON position before any systems or components are operational Temperature Profile and OTL Controller The temperature controller for the oven is labeled TEMPERATURE AND HIGH LIMIT CONTROL and consists of a Watlow EZ Zone Controller The controlller is provided with a digital display and Up and Down arrow keys The keys are used to change the oven temperature set point perform calibrations and program heating profiles The arrow keys also control the operations of the Over Temperature Limit system OTL WATLOW EZ ZONEO Figure 4 Temperature Controller The EZ1 button is used to quick launch Profile 1 or abort any running heating profile see the Programmed Operations section on page 24 The EZ2 button does not have a function in the SMOSHP 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 Pressing the reset button repeatedly returns the display to the home page Note On some older Watlow Controllers the Reset button may be labeled with an infinite symbol rather than RESET A small flashing 2 toward the center bottom of the display indicates when the controller is powering the oven s heating elements A small flashing 1 indicates internal communications functions within the c
23. iii 5 RECENINGYOUROVEN aan ae ane eai 6 NSIC CCI E eles ee ee ne ee le 6 Recording Data Plate Information e 6 OR 7 INSTALLATION a en 9 Required Ambient Conditions cai 9 Power Source Requirements iii 10 FOWEF FECO MIA iii tee aliena tree de dl raptor 10 LIRICA ione 11 EOVCI O TTT 11 SO 1 11 ieri ROERO OI O FEET RITI 11 SEUI as nee EEE ee ee E 12 GRAPHIC SYMBOLS eiren a OaE EE alain 13 CONTROL PANEL OVERVIEW nnmnnn nnmnnn nnnm nnmnnn 14 OPERATION LL laine 15 Operating elel 15 RO OO MOINS TTT 16 ORE E E AO 18 Set the Over Temperature TE 19 Set the Temperature Controller Set Point ss 19 FS SS EUT Ilaria inte 20 Temperature Accuracy Verification ss 21 CO SET Veli TTT 23 Over FemperalWeLIMtACINE lola 23 FIORINI ODA TON aa a en ee de de a ete 24 Positive Venting of EYHauST ee eee eee 24 USER MAINTENANCE a een laos sated minted rie 26 Gleaning ana DISCO EI 26 WOOF EAIC ANG LIC CONICS a nie dede de tie db moe ie cel di al odia Ce tial tel ie Na 27 DOC TTT 27 Removing the Chamber LHS see e eee ee 28 Calibrate the Temperature display sine 30 UNIT SPECIFICATIONS ae ee 34 eolie 34 DINCISIOSi di een ed da en di te Den D en dde ee de nb tte den ee esa bia prati 34 EE 34 gnel CapacChy DY s r 34 TA VO EE era liceali 35 AIO eier ee siciliana iaia 35 UE 35 REPLACEMENT PARTS alia ira 36 3 Page LAB INTRODUCTION Thank you for purchasing a Sheldon Manufacturing High Perform
24. included with the oven for instructions on how to program heating profiles The guide is intended as simplified explanation for all major heating profile functions and programing steps The guide is also available on the Shel Lab website in PDF format Refer to Chapter 7 of the EZ Zone PM User s Manual for highly detailed instructions on how to program the EZ Watlow Controller POSITIVE VENTING OF EXHAUST Exhaust ducting can be connected to the oven s exhaust port to channel or positively vent exhaust out of the workspace around the oven Additionally Sheldon Manufacturing sells a 220 240 volt High Performance Power Exhaust that can be mounted directly on the exhaust vent and powered by the oven An exhaust duct should not extend straight up from the oven but should include a steep bend sufficient to stop condensation within the ducting from sliding down into the oven Figure 5 High Performance Power Exhaust PN 9990741 Mounting the Power Exhaust l 1 Remove the screws on the cover of the exhaust vent assembly on the top of the oven but leave the assembly in place 2 Mount the power exhaust blower on the exhaust vent cover assembly aligning the blower and the assembly s screw holes The open side of the blower s mounting body should go over the handle of the exhaust port s sliding vent cover 3 Reinstall the screws 4 Plug in the power exhaust into the 220 240 volt outlet on the back of the oven 24 P
25. l depower The cause of a blown fuse should be determined prior to replacing it POWER FEED WIRING The oven comes provided with an integral 6 inch 15 cm wire braid of two 14 gauge high temperature 300 C hot wires and a 14 gauge earth ground See the Orientation Picture on page 7 The wires for power source connection should be Green Yellow Earth Black Hot Red Hot The oven must be earth grounded using the protective conductor terminal green with yellow stripe wire Do not remove the protective conductor earth connection Removing the protective conductor will negate the oven s protections against potentially dangerous electric shocks and create a possible fire hazard 10 Page LAB INSTALLATION CONTINUED LIFTING AND HANDLING The oven is heavy Use appropriate lifting devices that are sufficiently rated for these loads Follow these guidelines when lifting the oven e Lift the oven only from its bottom surface e Doors handles and knobs are not adequate for lifting or stabilization e Restrain the oven completely while lifting or transporting so it cannot tip e Remove all moving parts such as shelves and trays and secure the door in the closed position during transfers to prevent shifting and damage LEVELING The oven must be level and stable for safe operation Each Clean Room Oven ships with four leveling feet Insert one leveling foot into each of the four holes in the bottom corners of th
26. ng slots then pushing down gently to secure the slider 2 Hang the shelf from the two installed sliders Figure 3 Installed Sliding Shelf 12 Page LAB 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 op rateur doit consulter le manuel d utilisation pour y trouver les instructions compl mentaires Indicates Adjustable Temperature Indique temp rature r glable Indicates AC Power Rep re le courant alternative Indicates I ON and O OFF rep re de la position MARCHE de l interrupteur d alimentation O rep re de la position ARRET de l interrupteur d alimentation Indicates protective earth ground Rep re terre lectrique Indicates UP and DOWN respectively A Touches d e d placements respectifs vers le HAUT et le BA Indicates a Potential Shock Hazard Signale danger lectrique Indicates the unit should be recycled Not disposed of in land fill Indique l appareil doit tre recycl Ne pas jeter dans une d charge Indicates Caution hot surface Indique Avertissement symbole de surface chaude 13 Page LAB CONTROL PANEL OVERVIEW Figure 3 Control Panel Power Switch The green lig
27. nical Support are 6am 4 30pm Pacific Coast Time west coast of the United States UTC 8 Please have the following information ready when calling or emailing Technical Support the model number and the serial number These will be found on the unit s data plate which is located on the back of the unit at the top right next to the power supply as mandated by regulatory requirement EMAIL tech shellab com PHONE 1 800 322 4897 extension 4 or 503 640 3000 FAX 503 640 1366 TEMPERATURE REFERENCE SENSOR DEVICE The oven does not come with a temperature reference device A reference sensor device must be purchased separately for performing accuracy verifications and calibrations of the oven temperature display The reference device must be accurate to at least 2 C and should be regularly calibrated preferably by a third party For best results use a digital device with wired connected temperature sensing probe For example a wire thermocouple probe that can be introduced into the oven chamber leaving the device outside Readings taken from outside the unit avoid chamber door openings during verifications and calibrations and eliminate subsequent waits for the chamber temperature to re stabilize before proceeding select a probe suitable for the application temperature you will be calibrating or verifying the display accuracy at Alcohol thermometers are insufficient for conducting accurate verifications and calibrations D
28. o not use a mercury thermometer Never place a mercury thermometer in the oven chamber 5 Page LAB RECEIVING YOUR OVEN Before leaving our factory all High Performance 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 When you receive your High Performance Oven inspect it for concealed loss or damage to its interior and exterior If you find any damage to the oven follow the carrier s procedure for claiming damage or loss INSPECTING THE SHIPMENT Carefully inspect the shipping carton for damage Report any damage to the carrier service that delivered the oven If the carton is not damaged open the carton and remove the contents The unit should come with an Installation and Operation Manual warranty card a Certificate of Compliance and the Programming Guide Watlow EZ Zone Heating Profiles Verify that the correct number of shelves shelf slides and leveling feet have been included see the following table for quantities Included accessories Shelves 2 Shelf Slides 4 Leveling Feet 4 ee cr Carefully check all packaging before discarding Save the shipping carton until you are certain that the unit and its accessories function properly RECORDING DATA
29. ontroller Vent Valves The SMO5HP 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 14 Page LAB OPERATION OPERATING PRECAUTIONS Warning This SMO oven is not an explosion proof unit A Avertissement Ce sont des fours pas r sistants aux explosions 1 The oven is not designed to safely contain combustible gasses Do not place explosive combustible or flammable materials into the chamber The bottom surface of the chamber should not be used as a work surface Do not operate the oven in an environment with noxious fumes A e amp N The SMO oven is provided with a dampened exhaust vent For safe and efficient oven operation follow these precautions a In normal heating the damper is closed b Outgassed byproducts may be hazardous to or noxious for operating personal If either is the case the oven exhaust should be positively ventilated to a location outside workspace in accordance with national and local regulations 6 Do not place sealed or filled containers in the oven 7 Do not place mercury thermometers in the oven 8 The SMO oven is not designed for use in Class I II or III locations as defined by the US National Electric Code Warning The vent dampers may be hot to the touch These areas are marked with Hot Surface labels Proper PPE should be AN employed to minimize burn risk Averti
30. ower Display Operations Selection Menue Continued on next page LAB 31 Page USER MAINTENANCE CONTINUED Temperature Calibration Continued 4 Advance through the Operations menu to the Temperature Calibration page OQ 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 Temperature Calibration Page 5 Adjust the number value in the top display to match the offset value using the arrow buttons 6 Save the calibration offset and return to the Home Page F T Press the Reset Button repeatedly until the display shows lt the home page The oven will begin to heat or passively cool to reach the current set point with the offset display value Home Page 7 Allow the oven to stabilize after achieving the temperature set point using the offset display value Continued on next page 32 Page LAB USER MAINTENANCE CONTINUED Temperature Calibration Continued Reference Device 8 Once the chamber has stabilized no fluctuations of 0 2 C or greater for omar a half hour compare the reference temperature device and oven L Lil L temperature display readings a Ifthe 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 The Temperature Verification procedure is now complete
31. pares the oven for normal use Load the oven with your product or samples End of procedure LAB OPERATION CONTINUED SET THE OVER TEMPERATURE LIMIT 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 Press the green Advance button until Lh S1 Limit High Set Point shows in the green colored mid level display a Steps 1 and 2 Use the Up and Down arrows to enter a temperature limit in the red top display Limit set at 325 C After entering the temperature limit press the Advance button The red display will show SAFE indicating that the temperature limit has been set Press the Reset button to scroll the display back to the home page Step 3 SET THE TEMPERATURE CONTROLLER SET POINT This procedure sets a new temperature set point for the oven s manual mode Note Set the oven to the highest temperature you will run the oven at if manually running the First Use Filter Burn In procedure see page 20 This procedure may also be run by programing and launching it as a heating profil
32. part 36 Page LAB LAB Pag Sheldon Manufacturing Inc P O Box 627 Cornelius Oregon 97113 EMAIL tech Shellab com INTERNET http www Shellab com PHONE 1 800 322 4897 503 640 3000 FAX 503 640 1366
33. protocol Contact your local Site Safety Officer and follow instructions per the site policy and procedures The unit should be cleaned prior to first use Do not use spray on cleaners or disinfectants These can leak through openings and coat electrical components Do not use cleaners or disinfectants that contain solvents capable of harming paint coatings or stainless steel surfaces Do not use chlorine based bleaches or abrasives these will damage the chamber liner Consult with the manufacturer or their agent if you have any doubts about the compatibility of decontamination or cleaning agents with the parts of the equipment or with material contained in it T Warning Never clean the oven with alcohol or flammable cleaners Avertissement Ne jamais nettoyer l appareil a l alcool ou avec des nettoyants inflammables Cleaning Perform the steps below to clean the oven 1 Remove all removable interior components such as shelving and accessories 2 Clean the oven with a mild soap and water solution including all corners Do not use an abrasive cleaner that will damage stainless steel surfaces Do not use deionized water to rinse or clean with 3 Rinse with distilled water and wipe dry with a soft cloth 4 Take special care when cleaning around the temperature sensor probes at the back of the chamber to prevent damage Disinfecting Cary out the following steps to disinfect the oven if required by your laboratory or production
34. re set point you are using for your application or process e The main controller circuitry or sensor probe has failed and must be replaced in order to maintain safe and accurate oven operations Alternating OTL Alert Screens If you have set the Over Temperature Limit too low perform the following steps to take the unit out of shutdown 1 Press the advance key until Ignore i9nr shows in the top display and Limit High Lih1 in the green display 2 Press the green advance key again Limit High Set Point LhS1 will appear in the Step 1 green display and the Over Temperature Limit setting in the red top display 3 Adjust the Over Temperature Limit to above your set point using the Up Arrow Button 4 Push the Reset Button to save the new OTL setting If the Over Temperature Limit has activated and the red oven temperature is higher than your green temperature set point the main controller circuitry or temperature sensor may have failed Cease using the oven and contact Sheldon Technical Support for assistance Step 3 SIL AR 23 Page OPERATION CONTINUED PROGRAMMED OPERATIONS 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
35. ssement Les clapets d a ration peuvent tre chauds au toucher Ces zones sont marqu s avec des tiquettes de Surface chaude Les EPI appropri devraient tre employ e pour r duire au minimum le risque de br ler LAB 15 Page OPERATION CONTINUED THEORY OF OPERATIONS 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 Running the oven with an active power exhaust blower attached to the exhaust vent will reduce the oven chamber temperature Heating The oven runs in either manual mode or an automatic heating profile The oven comes from the factory set to run in manual mode When powered and running in manual mode the SMO oven chamber heats to and then indefinitely maintains the temperature set point shown on the home page of the controller The manual mode set point can be adjusted by the end user using the Up and Down temperature buttons The oven will not heat if the temperature set point is set below its operational temperature range When the oven is powered the chamber air temperature cannot go below the ambient room temperature plus the internal waste heat of the oven Waste heat is genera
36. ted primarily by the operation of the air circulating blower fan motor and the resulting air compression in the duct spaces In practice the temperature floor is ambient 15 C The oven heater controller a Watlow EZ digital controller stores the user selected temperature set point along with any user programed heating profiles The controller monitors the oven chamber air temperature using a solid state probe located in the airstream on the right wall of the chamber When the processor detects that the chamber temperature has dropped below the current temperature set point it pulses power to a heating element in a recirculation air duct located above the oven chamber The controller employs proportional integral derivative analytical feedback loop functions when measuring and controlling the chamber air temperature levels PID controlled heating pulse intensities and lengths are proportional to the difference between the measured chamber temperature and the current set point The frequency of pulses are derived from the rate of change in the difference The integral function slows the rate of pulses when the temperature nears the set point to avoid overshooting SMO ovens rely on natural heat radiation for cooling The oven depends on the operation of its blower fan to circulate air and maintain temperature uniformity and stability in the chamber The heating rates given in unit specification section of this manual are for a 25 C environment Th
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