VACUUM OVEN SVAC1 SVAC1-2 SVAC2 SVAC2-2 SVAC4 SVAC4-2 Previously designated as 1425, 1425-2 1445, 1445-2 1465, 1465-2 INSTALLATION AND OPERATION MANUAL Revised 6 / 2014 4861531 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 VACUUM OPERATION SECTION 7.0 OPERATION SECTION 8.0 MAINTENANCE SECTION 9.0 TROUBLESHOOTING SECTION 10.
INTRODUCTION Thank you for purchasing our product. We know that in today’s competitive market place, customers have many choices when purchasing constant temperature equipment. We appreciate your choosing our quality product. Our continued reputation as a leading laboratory product manufacturer rests with each and every customer. Sheldon Manufacturing, Inc. stands behind our products and want to let you know we are here if you need us.
1 Section RECEIVING AND INSPECTION IMPORTANT: READ THIS INSTRUCTION MANUAL IMMEDIATELY. Your satisfaction and safety require a complete understanding of this unit, including its proper function and operational characteristics. Be sure operators are given adequate training before attempting to put unit in service. NOTE: This equipment must be used only for its intended application; any alterations or modifications will void your warranty. 1.
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. Symbol Identification Indicates that you should consult your operator’s manual for further instructions. Indique que l'opérateur doit consulter le manuel d'utilisation pour y trouver les instructions complémentaires.
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 circumstances these units are intended for use indoors, at room temperatures between 15 and 35C, 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 NOTE: THIS IS NOT AN EXPLOSION PROOF OVEN 4.1 The bottom surface of the chamber should not be used as a work surface. 4.2 Do not place or use explosive, combustible, or flammable materials in the oven. 4.3 Do not use sealed containers in the oven chamber. 4.4 Do not modify the power cord provided with the unit. If the plug goes not fit an outlet, have a proper outlet installed by a qualified electrician. 4.
5 Section CONTROL PANEL OVERVIEW SVAC1 (1425) & SVAC1-2 (1425-2) SVAC2 (1445) & SVAC2-2 (1445-2) SVAC4 (1465) & SVAC4-2 (1465-2) Watlow EZ-Zone Control Watlow Controller Details THE EASY ZONE KEY 1 INITIATES AND ENDS HEATING PROFILES CURRENT OVEN CHAMBER TEMPERATURE 20.0 C THE RESET KEY SCROLLS 1 PAGE BACK EZ1 RES E T THE UP ARROW KEY ADJUSTS SET POINTS OR CHANGES PARAMETERS 20.0 TEMPERATURE SET POINT (YOUR DESIRED TEMPERATURE) INDICATES THAT THE CONTROLLER IS POWERING THE OVEN’S HEATER 5.1 5.
5.6 5.7 5.8 5.9 FUSE: Mounted on the rear wall next to the power cord, provides protection for the unit’s electrical circuitry against over current conditions. The fuse, when blown, must be replaced before the unit can continue operation. Match the fuse ratings with those on the fuse data plate. VACUUM: This adjustment handle allows opening and closing of the vacuum valve to an external vacuum pump or system.
6 Section VACUUM OPERATION 6.1 The vacuum pump is the heart of your vacuum oven system. The selection of a vacuum pump is critical to match your overall performance expectations for time to evacuate the chamber and the maximum obtainable vacuum levels. As well, the type of pump should be considered depending on the material that will be placed in the chamber. Common types are Chemical Duty PTFE Dry, Standard Duty Dry, Compact DirectDrive, and other specialty pumps for Corrosive gases.
7 Section OVEN OPERATION NOTE: When starting a new oven, allow the oven to operate two hours at 150˚C. Slight vapor or smoke may occur in the initial heat-up. This is the dissipation of protective coatings that have been added to the oven elements. 7.1 Power Connection: Connect the service cord to a grounded outlet if supplied with a detachable cord set. Switch the unit to the ON position. 7.2 Turn the Set Over Temperature control to its maximum position (clockwise). 7.
7.5 Setting the Set Over Limit Temperature Control: To set the Over Temperature Limit Control, perform the following: 1. The Over Temperature Limit Control should be initially set to its maximum position to allow the Main Temperature Controller to stabilize. 2. Set Main Temperature Control to 1˚C above desired set point and allow to stabilize. 3. Turn the Over Temperature Limit Control counter-clockwise until the Over Temperature Light just activated.
8 Section MAINTENANCE Warning: Prior to any maintenance or service on this unit, disconnect the power cord from the power supply. Before reattaching the unit to its power supply, be sure all volatile and flammable cleaners are evaporated and dry. Avertissement: Avant d'effectuer toute maintenance ou entretien de cet appareil, débrancher le cordon secteur de la source d'alimentation.
9 Section TROUBLESHOOTING AND SERVICE TEMPERATURE Temperature too high 1/ controller set too high 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–call Customer Service Chamber temperature spikes over set point and then settles to set point Recalibrate to desired temperature set point Temperature too low 1/ Set Over Temperature too low 2/ Main control set too low 3/ unit not recovered
4/ Controller set too low–be sure that it is more than 5 degrees over desired set point; check if Over Temperature light is on continuously; turn controller knob completely clockwise to see if problem solved then follow instructions in section 6.6 for correct setting. 5/ electrical noise–remove nearby sources of RFI including motors, arcing relays or radio transmitters.
Section 10 PARTS LIST Description 100-120V 220-240V Controller Knob Outer Door Glass SVAC1 (1425) & SVAC1-2 (1425-2) SVAC2 (1445) & 1445-2 SVAC4 (1465) & SVAC4-2 (1465-2) Door Glass SVAC1 (1425) & SVAC1-2 (1425-2) SVAC2 (1445) & SVAC2-2 (1445-2) SVAC4 (1465) & SVAC4-2 (1465-2) Elements SVAC1 (1425) SVAC1-2 (1425-2) sides SVAC1 (1425) SVAC1-2 (1425-2) bottom SVAC2 (1445) SVAC2-2 (1445-2)sides SVAC2 (1445) SVAC2-2 (1445-2)bottom SVAC4 (1465) & SVAC4-2 side/top SVAC4 (1465) & SVAC4-2 bottom SVAC4 (1465) &
Description Temperature Controller (Watlow) SVAC1 (1425) & SVAC1-2 (1425-2) SVAC2 (1445) & SVAC2-2 (1445-2) SVAC4 (1465) & SVAC4-2 (1465-2) Vacuum Gauge (Digital) Sunx Vacuum Gauge (Digital) Autonics Ventilation Valve Vacuum Valve 100-120V 220-240V 9660501 9660502 9660503 7850583 7850584 9990736 9990737 9660501 9660502 9660503 7850583 7850584 9990736 9990737 18
UNIT SPECIFICATIONS Weight Shipping Net SVAC1 (1425) SVAC1-2 (1425-2) SVAC2 (1445) SVAC2-2 (1445)-2 SVAC4 (1465) SVAC4-2 (1465-2) 145 lbs. 65.771 kg 220 lbs. 99.790 kg 400 lbs. 181.44 kg 105 lbs. 47.627 kg 179 lbs. 81.193 kg 360 lbs. 163.29 kg Dimensions Exterior W x D x H Interior W x D x H SVAC1 (1425) SVAC1-2 (1425-2) SVAC2 (1445) SVAC2-2 (144-25) SVAC4 (1465) SVAC4-2 (1465-2) 18 x 23 x 23.5 (in) 45.72 x 58.42 x 69.69 (cm) 20.5 x 39.50 x 26.25 (in) 52.07 x 77.47 x 66.68 (cm) 26.5 x 34.5 x 32.
WIRE DIAGRAM SVAC1 (1425) 100-120V 9851330 INLET 4200513 BLACK RED HT HT FUSE BLACK HT RED HT 2800502 EMI FILTER BLACK HT RED HT GREEN LIGHTED SWITCH 7850570 RED HT BLACK HT FAN 4880550 BLACK HT RED HT VACUMM GAGE 7850583 12VDC POWER SUPPLY BROWN BLUE 6750507 MODE BLACK HT RED HT SOLID STATE RELAY 7030533 3 2 4 1 BLACK HT BLACK HT 99 Y1 J3 CF WATLOW PM 9660501 RED HT L2 L4 K2 K4 T1 T2 S1 S2 D6 R1 R2 D5 WHITE CD CE B5 TOP ½ OF OTP 1750648 1 2 3 4 5 6 7 8 9 SU
WIRE DIAGRAM SVAC1-2 (1425-2) 220-240V 9851329 INLET 4200513 BLACK RED HT HT FUSE FUSE BLACK HT RED HT 2800502 EMI FILTER BLACK HT RED HT GREEN LIGHTED SWITCH 7850570 RED HT BLACK HT FAN 4880551 BLACK HT RED HT WHITE BLACK VACUMM GAGE 7850583 12VDC POWER SUPPLY BROWN BLUE 6750507 MODE BLACK HT RED HT SOLID STATE RELAY 7030533 3 2 4 1 BLACK HT BLACK HT 2 L3 K3 98 99 Y1 J3 CF WATLOW PM 9660501 L2 L4 K2 K4 T1 T2 S1 S2 D6 R1 R2 D5 WHITE CD CE B5 OTP INDICATOR 4
WIRE DIAGRAM SVAC2 (1445) 100-120V 9851328 INLET 4200513 BLACK RED HT HT FUSE RED HT BLACK HT 2800502 EMI FILTER BLACK HT RED HT GREEN LIGHTED SWITCH 7850570 RED HT BLACK HT FAN 4880550 BLACK HT RED HT VACUMM GAGE 7850583 12VDC POWER SUPPLY BROWN BLUE 6750507 MODE BLACK HT RED HT SOLID STATE RELAY 7030533 3 2 4 1 BLACK HT 98 99 Y1 J3 CF WATLOW PM 9660502 L2 L4 K2 K4 T1 T2 S1 S2 D6 R1 R2 D5 RED HT CD CE B5 1 2 3 4 5 6 7 8 9 SUB D 9 PIN CONNECTOR 1650537 TC THERM
WIRE DIAGRAM SVAC2-2 (144-25)220-240V 9851327 INLET 4200513 BLACK RED HT HT FUSE FUSE RED HT BLACK HT 2800502 EMI FILTER BLACK HT RED HT GREEN LIGHTED SWITCH 7850570 RED HT BLACK HT FAN 4880551 BLACK HT RED HT WHITE BLACK VACUMM GAGE 7850583 12VDC POWER SUPPLY BROWN BLUE 6750507 MODE BLACK HT RED HT SOLID STATE RELAY 7030533 3 2 4 1 BLACK HT 2 L3 K3 99 Y1 J3 CF 98 WATLOW PM 9660502 L2 L4 K2 K4 T1 T2 S1 S2 D6 R1 R2 D5 WHITE BLACK HT 1 X1 W1 RED HT CD CE B
WIRE DIAGRAM SVAC4 (1465) 100-120V 9851326 INLET 4200513 BLACK RED HT HT FUSE RED HT BLACK HT 2800503 EMI FILTER BLACK HT RED HT GREEN LIGHTED SWITCH 7850570 RED HT BLACK HT FAN 4880550 BLACK HT RED HT VACUMM GAGE 7850583 12VDC POWER SUPPLY BROWN BLUE 6750507 MODE BLACK HT RED HT SOLID STATE RELAY 7030533 3 4 2 1 BLACK HT 98 99 Y1 J3 CF WATLOW PM 9960503 L2 L4 K2 K4 T1 T2 S1 S2 D6 R1 R2 D5 RED HT CD CE B5 TC THERMOCOUPLE 6600519 RED TOP ½ OF OTP 1750648 1 2
WIRE DIAGRAM SVAC4-2 (1465-2) 220-240V 9851325 INLET 4200513 BLACK RED HT HT FUSE FUSE RED HT BLACK HT 2800502 EMI FILTER BLACK HT RED HT GREEN LIGHTED SWITCH 7850570 RED HT BLACK HT FAN 4880551 BLACK HT RED HT WHITE BLACK VACUMM GAGE 7850583 12VDC POWER SUPPLY BROWN BLUE 6750507 MODE BLACK HT RED HT SOLID STATE RELAY 7030533 3 4 2 1 BLACK HT L3 K3 99 Y1 J3 CF 98 WATLOW PM 9660503 L2 L4 K2 K4 T1 T2 S1 S2 D6 R1 R2 D5 CD CE B5 1 2 3 4 5 6 7 8 9 SUB D 9 PIN CONN
REFERENCE 1 PROGRAMING RAMP AND SOAK PROFILE THE WATLOW EZ ZONE CONTROLER IS CAPABLE OF 40 STEP RAMP AND SOAK PROFILES OR 4 DIFFERENT FILES WITH 10 STEPS PER FILE. BELOW IS A SIMPLE EXAMPLE PROGRAM ON HOW TO ENTER A PROFILE AND START AND RUN A PROGRAM. THE PROGRAM WILL RAMP UP TO 150 DEGREES FROM AMBIENT CONDITION AND SOAK FOR 4 HOURS. FOR YOUR PROGRAMS, MAKE SURE ENOUGH TIME IS ENTERED IN THE RAMP TIME SO THE OVEN CAN REACH SET POINT BEFORE ENTERING THE SOAK STEP.
REFERENCE 1 (cont.) USE UP OR DOWN ARROWS USE UP OR DOWN ARROWS SoAh PUSH ONCE S.tyP hoUr FOR NEXT SCREEN TO SELECT SOAh IN TOP DISPLAY 4 # VALUE 0 TO SELECT 4 IN TOP DISPLAY TO SELECT 0 IN TOP DISPLAY 0 # VALUE FOR NEXT SCREEN SEC PUSH ONCE TO RETURN 2 P1 SEC TO NEXT SCREEN TO SELECT 0 IN TOP DISPLAY USE UP OR DOWN ARROWS USE UP OR DOWN ARROWS PUSH ONCE END 3 P1 TO SELECT 3 IN TOP DISPLAY USE UP OR DOWN ARROWS FOR NEXT BOTTOM DISPLAY S.tyP END FOR NEXT BOTTOM DISPLAY S.
REFERENCE 1 (cont.
REFERENCE 2 SUNX VACUUM GAUGE ZERO ADJUSTMENT: The SUNX DP2-20F vacuum gauge comes preset from the factory reading vacuum in inhg and automatically runs in sensing mode when powered on. At different altitudes the gauge may need to be rezeroed. Without pressure applied and vacuum door open exposing the gauge to atmospheric pressure it should read 0.0.
REFERENCE 2 (cont.) AUTONICS VACUUM GAUGE ZERO ADJUSTMENT: The AUTONICS PSA-V01 vacuum gage comes preset from the factory reading vacuum in inhg and automatically runs in sensing mode when powered on. Do to different altitudes the gage may need to be zeroed. Without pressure applied and vacuum door open exposing the gauge to atmospheric pressure it should read 0.0.
REFERENCE 3 APPENDIX The Effect of Altitude (Atmospheric Pressure) on Maximum Attainable Vacuum Level The Maximum Possible Vacuum Attained is based on your Altitude. Basically, the higher you are the less vacuum you can attain. Because free air is less dense at higher altitudes (i.e. lower atmospheric pressure) operation at these higher altitudes has the effect of reducing the capacity and maximum vacuum levels attainable. In general flow is not affected, just the maximum vacuum level attainable.
