MICROPROCESSOR CONTROLLED OVEN SMO3 SMO3-2 SMO5 SMO5-2 PREVIOUSLY DESIGNATED AS CE3F CE3F-2 CE5F CE5F-2 Revised 12/2013 4861579 INSTALLATION AND OPERATION MANUAL Sheldon Manufacturing Inc. P.O. Box 627 Cornelius, Oregon 97113 EMAIL: tech@Shellab.com INTERNET: http://www.Shellab.
TABLE OF CONTENTS SECTION 1.0 RECEIVING AND INSPECTION SECTION 2.0 GRAPHIC SYMBOLS SECTION 3.0 INSTALLATION SECTION 4.0 PRECAUTIONS SECTION 5.0 CONTROL PANEL OVERVIEW SECTION 6.0 OPERATION SECTION 7.0 MAINTENANCE SECTION 8.0 TROUBLESHOOTING SECTION 9.
1 Section RECEIVING AND INSPECTION Your satisfaction and safety require a complete understanding of this unit. Read the instructions thoroughly and be sure that all users are given adequate training before attempting to use this unit. Note: This equipment must be used only for its intended purpose; any alterations or modifications will void your warranty. 1.1 Inspection: The carrier, when accepting shipment, also accepts responsibility for safe delivery and is liable for loss or damage claims.
2 Section GRAPHIC SYMBOLS Your oven has been provided with a display of graphic symbols which should help in identifying the use and function of the available user adjustable components. 2.1 This symbol indicates that you should consult your manual for further description or discussion of a control or user item. 2.2 Indicates "AC Power". 2.3 Indicates "Manual Control". 2.4 Indicates "Timer". 2.5 C Indicates "Degrees Celsius". 2.6 Indicates "Temperature". 2.
3 Section INSTALLATION Local city, county or other ordinances may govern the use of this equipment. If you have any questions about local requirements, please contact the appropriate local agency. Installation may be performed by the end user. Under normal circumstance this unit is intended for use indoors, at room temperatures between 5 and 40 C, at no greater than 80% Relative Humidity ( at 25C ) and with a supply voltage that does not vary by more than 10%.
4 Section PRECAUTIONS 4.1 The bottom surface of the chamber should not be used as a work surface. 4.2 This unit has been designed with a dampered vent from the chamber. In order to work effectively and safely, some precautions will need to be taken by the operator. A. In most applications, the exhaust damper will need to be opened during drying or degassing for best results. B. THIS OVEN IS NOT DESIGNED TO HANDLE COMBUSTIBLE GASSES AND IS NOT AN EXPLOSION PROOF UNIT.
5 Section CONTROL PANEL OVERVIEW 5.1 Power Switch: The main power switch on the control panel (green lighted I/O) controls all power to the oven. It must be in the I/On position before any systems are operational. The green pilot light in the switch will be lighted when the switch is in the ON position. 5.2 Timer Switch: The black I/O power switch marked TIMER is located to the right of the main power switch. It controls the power to the time circuit.
6 Section OPERATION 6.1 Connection to Power Supply: Assure that the electrical power supply is properly configured and rated for the oven and plug the unit cord into the receptacle. 6.2 Push the main power switch to the On position. The digital temperature display will indicate a temperature value. Turn the Overtemperature Safety Thermostat to its maximum position, clockwise using a coin or flat head screwdriver. 6.
B. Ten Minute Function: After the correct value for hours is set, push the RESET pad again. The blinking decimal will now move one digit to the right between digits 3 and 4. Pushing the UP or DOWN arrow pads will increase or decrease the ten minute function allowing values between 0 and 5 to be set (digit 3). C. One Minute Function: After the correct ten minutes value is set, push the RESET pad again.
7 Section MAINTENANCE Note: Disconnect the power cord from the power source before performing any service or maintenance on this unit. 7.1 Cleaning: Cleaning and decontamination are recommended on a regular basis. To prepare the unit for cleaning, remove all interior parts if assembled, such as shelves and shelf clips. First clean the chamber with soap and water, rinse and let dry. To decontaminate use a solution that is appropriate for your application.
8 Section TROUBLESHOOTING TEMPERATURE Temperature too high. 1/ Controller set too high-see section 6.3 2/ Controller failed on – call Customer Service. 3/ Wiring error – call Customer Service. Display reads "HI" or "400"+. Probe is unplugged, is broken or wire to sensor is broken – trace wire from display to probe; move wire and watch display to see intermittent problems Chamber temp spikes over set point and then settles to set point. Recalibrate – see section 6.4.
Indicated chamber temperature unstable 1/ ±0.1 may be normal. 3/ For Forced air models: is fan working? –verify movement of air in chamber. 4/ Is ambient room temperature radically changing – either door opening or room airflow from heaters or air conditioning ? – stabilize ambient conditions. 5/ This may happen if exhaust stack is 100% open or if power exhaust is cycling – adjust stack to at least ¼ closed.
Door not sealing 1/ Adjust hinge blocks or twist the door. 2/ Confirm that unit has not been damaged and body is not square. 3/ Check physical condition of gasket for tears or punctures. OTHER Controller on at all times - "locked-up" 1/ Adjust set point to room temperature. If the unit is still heating, replace the solid state relay. 2/Turn unit off and on to reset. 3/ If cannot change any condition on the front panel, call Customer Service.
9 Section PARTS LIST Description EMI Filter Adjustable Feet Blower Motor Control Knob Cord Set Door Latch Fuse Holder Fuse, 10 Amp 250V Fuse, 16 Amp Heating Element SMO5 / SMO5-2 (CE5F / CE5F-2) I/O (On/Off) Power Switch Main Control W/Timer Overtemperature Safety Thermostat Pilot Lamp, Green Pilot Lamp, OTP Red Shelf Clips Shelf CE5F Solid State Relay Timer Switch Heating Element SMO3 / SMO3-2 (CE3F CE3F-2) Shelf SMO3 / SMO3-2 (CE3F / CE3F-2) 115v 220V 2800503 2700512 4880549 4450506 1800510 3800605 N/
UNIT SPECIFICATIONS Weight SMO3 SMO3-2 (CE3F CE3F-2) SMO5 SMO5-2 (CE5F CE5F-2) Dimensions Shipping Net 180 lbs. 83 lbs. 200 lbs. 93 lbs. Exterior WxDxH (in.) SMO3 SMO3-2 (CE3F CE3F-2) SMO5 SMO5-2 (CE5F CE5F-2) 25.50 x 25.563 x 33.3 16.50 x 19.50 x 16.437 30.00 x26.8 x 38.0 Capacity Cubic Feet SMO3 SMO3-2 (CE3F CE3F-2) SMO5 SMO5-2 (CE5F CE5F-2) 3.0 Temperature SMO3 SMO3-2 (CE3F CE3F-2) SMO5 SMO5-2 (CE5F CE5F-2) Interior WxDxH (in.) 21.00 x 19.50 x 21.000 5.0 Range 10 above amb.
WIRING DIAGRAM SMO3 SMO5 (CE3F CE5F)
SMO3-2 SMO5-2 (CE3F-2 CE5F-2)
