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P a g e

 

cascadesciences.com 

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Tel. 503 847-9047

 

USER MAINTENANCE 

Note: 

Does the car actually have gas in the tank? Have you physically verified the computer is 

plugged in? Yes, we are going ask some very basic questions. Please bear with us. 

Methodical verifications and the elimination of potential causes of failure are often the 

quickest means of getting a unit back into operation. 

 

 

Unit Performance Specifications 

Verify the following items to ensure a fault in the unit is preventing it from achieving its specified 
performance levels. 

 

 

Standard Ventilation Spacing Requirements 

Verify there is sufficient spacing around the oven for ventilation or cooling. Insufficient spacing can 
adversely impact temperature performance. 

 

A minimum of 

6 inches (152 mm)

 clearance is required between the sides of the oven and any 

walls or partitions. 

 

A minimum of 

12 inches (305 mm)

 between the top of the oven and overhead cover. 

 

At least 

12 inches (305 mm)

 between the back of the oven and any partitions or objects. 

 

 

Operating Temperature Range of the Unit 

Verify that your constant temperature set point or the set points of your heating profile all fall within 
the operating range of the oven. 

 

Find the Temperature Range specifications for the oven in the Unit Specifications chapter of the 
Operation Manual, page 9. 

Summary of Contents for CVO-2-HT

Page 1: ...Vacuum Ovens CVO 2 HT CVO 5 HT Installation Operation Manual...

Page 2: ...2 P a g e cascadesciences com Tel 503 847 9047 Pictured on front cover left to right CVO 2 HT CVO 5 HT...

Page 3: ...3 P a g e cascadesciences com Tel 503 847 9047 Vacuum Ovens 110 120 Volts CVO 2 HT CVO 5 HT Part Number Manual 4861821 Revision July 13 2018...

Page 4: ...Power Source Requirements 25 General Power Safety 26 Lifting and Handling 26 Leveling 27 Install the Oven 27 Installation Cleaning 27 Shelving Installation 28 Connect to the Vacuum Supply 30 GRAPHIC S...

Page 5: ...mponents 50 Vacuum Pump Maintenance 50 Storage 50 Calibrate the Temperature display 51 Unlocking the Temperature Controller 55 Diagnostic Questionnaire Heating Issues 58 Diagnostic Questionnaire Vacuu...

Page 6: ...6 P a g e cascadesciences com Tel 503 847 9047 TABLE OF CONTENTS...

Page 7: ...ropriate professional industrial or educational use T V S D America Inc is an OSHA recognized NRTL and a Standards Council of Canada accredited certification body These units have been tested to the f...

Page 8: ...8 P a g e cascadesciences com Tel 503 847 9047 CERTIFICATIONS...

Page 9: ...es We reserve the right to alter technical specifications at all times TEMPERATURE Range Stability and Uniformity Model Range Stability Uniformity CVO 2 HT Ambient 20 to 220 C 0 2 C 150 C 6 of Set Poi...

Page 10: ...CVO 2 HT 521 x 750 x 667 304 x 508 x 304 CVO 5 HT 673 x 876 x 819 457 x 610 x 457 CAPACITY Model Cubic Feet Liters CVO 2 HT 1 67 47 2 CVO 5 HT 4 50 127 4 SHELF CAPACITY BY WEIGHT Model Per Shelf Max...

Page 11: ...erational Vacuum Range inHg mmHg kPa bar 3 0 to 29 9 76 to 760 10 to 101 0 1016 to 1 0125 Vacuum Display Range inHg mmHg kPa bar 0 0 to 29 9 37 5 to 757 5 to 101 0 05 to 1 013 Lowest Rated Chamber Pre...

Page 12: ...12 P a g e cascadesciences com Tel 503 847 9047 UNIT SPECIFICATIONS...

Page 13: ...educational environments The ovens are not intended for use at hazardous or household locations CONTACTING ASSISTANCE Phone hours for Technical Support are 6 am 4 30 pm Pacific Coast Time west coast o...

Page 14: ...al outlet for powering a vacuum pump are installed in the cabinet inside the base of the oven See the Connect to the Vacuum Supply entry in the Installation section page 30 for more information on the...

Page 15: ...on hand during operation Each oven comes with a replaceable silicon gasket installed on the chamber liner This gasket seals against the chamber door to maintain the vacuum integrity of the chamber Th...

Page 16: ...16 P a g e cascadesciences com Tel 503 847 9047 INTRODUCTION...

Page 17: ...nd 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 un...

Page 18: ...l 503 847 9047 Figure 1 CVO 5 HT RECEIVING YOUR OVEN ORIENTATION Back of Unit See page 20 Main Control Panel Vacuum Control Panel and Display Chamber Door Chamber Gasket Seal Oven Chamber Shelf Standa...

Page 19: ...3 847 9047 Figure 2 CVO 2 HT RECEIVING YOUR OVEN Temperature Probe Tall Shelf Access Port KF 25 Fitting Tall Shelf Chamber Door Back of Unit See page 20 Chamber Gasket Seal Main Control Panel Vacuum C...

Page 20: ...503 847 9047 RECEIVING YOUR OVEN Back of Ovens KF 25 Vacuum Port Includes Blank and Clamp not pictured here Vacuum Port 3 8 inch 9 52 mm Chamber Vent Inlet Port inch 6 35 mm Power Cord Inlet Fuse Hold...

Page 21: ...PLATE INFORMATION The data plate contains the unit model number and serial number Tech Support will need this information during any support call Record it below for future reference The data plate i...

Page 22: ...22 P a g e cascadesciences com Tel 503 847 9047 RECEIVING YOUR OVEN...

Page 23: ...ge 24 Check that the spacing clearance requirements are met page 24 Unit dimensions may be found on page 9 Check that a suitable electrical outlet and power supply is present page 25 Install the Oven...

Page 24: ...40 C 59 F and 104 F at no greater than 80 Relative Humidity at 25 C 77 F Operating outside these conditions may adversely affect the oven temperature performance REQUIRED CLEARANCES These clearances a...

Page 25: ...ult if the supplied voltage varies more than 10 The recommended wall circuit breakers for these units are 15 amps Use a separate circuit to prevent loss of product due to overloading or circuit failur...

Page 26: ...ricity and cause serious injury Do not bend the power cord excessively step on it or place heavy objects on it A damaged cord can be a shock or fire hazard Never use a power cord if it is damaged or a...

Page 27: ...sed in the previous entries of the Installation section Do not connect the oven to its power source at this time INSTALLATION CLEANING The manufacturer recommends cleaning the shelving and oven chambe...

Page 28: ...oor The floor runs hotter than the shelf temperatures All heating specifications for the oven are for shelving temperatures CVO 2 HT 1 Carefully slide the short shelf into position on the chamber floo...

Page 29: ...out from the chamber back wall Do not place the shelf in direct contact with the probe 1 Install the shelf clips in the slots of the shelf standard mounting rails located on the sides of the chamber...

Page 30: ...ven here o This port is opened and closed by the Vacuum Valve control on the front control panel KF 25 Vacuum Port o Comes with a clamp and blank o Used for introducing thermocouple probes through a v...

Page 31: ...he user manual Consulter le manuel d utilisation Over Temperature Limit system Thermostat temp rature limite contr le haute AC Power Rep re le courant alternatif I ON O OFF I indique que l interrupteu...

Page 32: ...32 P a g e cascadesciences com Tel 503 847 9047 GRAPHIC SYMBOLS...

Page 33: ...ates forward through parameter option pages including Event 1 vacuum on or off and Units of Measurement Celsius or Fahrenheit The button also advances forward in menus and parameter lists when program...

Page 34: ...his valve allows the connected vacuum supply to evacuate the oven chamber In the closed position the valve cuts off the vacuum draw Vent Valve Control Backfill Inlet This valve controls the chamber Ve...

Page 35: ...endommager le four Le non respect des consignes de s curit et des pr cautions d utilisation d lib r ment ou par erreur est un comportement dangereux de la part de l op rateur SAFETY GUIDELINES Failur...

Page 36: ...n outside the workspace in a safe manner in accordance with all applicable laws ordinances and regulations Do not operate the oven in an unsafe area with noxious fumes Do not use this oven for applica...

Page 37: ...itability and safety depending on the outgassed byproduct types and moisture level produced in the oven chamber Gas Backfill A gas supply can be connected to the vent intake port backfill inlet locate...

Page 38: ...that difference The integral function slows the rate of pulses when the temperature nears the set point to avoid overshooting TVO ovens rely on natural heat radiation for cooling The oven can achieve...

Page 39: ...y 3 Verify the Door and Valves are Closed Verify the oven chamber door is closed and latched and that the vent intake valve and vacuum valve are in the closed position turned all the way clockwise Thi...

Page 40: ...r use 7 Verify Vacuum Integrity 10 Minutes Minimum Place the Chamber Under Vacuum for a minimum of 10 minutes to verify the integrity of the vacuum supply system See page 42 8 Set the Operating Temper...

Page 41: ...on the Homepage Push Advance Multiple Times Push the Advance button repeatedly until Lh S1 Limit High Set Point shows in the green mid level display line 2 Adjust the high limit to at least 10 C abov...

Page 42: ...n the oven Vacuum Valve Turn the control counter clockwise The Vacuum Gauge on the front panel should show the chamber pressure decreasing The achievable vacuum level is dependent on altitude above se...

Page 43: ...g aborts Profile 1 Pushing EZ2 launches heating Profile 2 Step 11 Pushing EZ2 again while running aborts Profile 2 1 Adjust the constant temperature Set Point on the Home Page Adjust Stay 10 C below t...

Page 44: ...our heating application A heat source in the oven chamber is pushing the oven temperature above the limit setting Significant outgassing in the chamber may be interfering with the measured temperature...

Page 45: ...Fahrenheit 1 From the homepage advance to the C_F1 unit of measurement option a Push the green Advance button 7 times 2 Change the unit of measurement a Use the Arrow button to change the parameter o...

Page 46: ...d show the current chamber pressure Units of Measurement Display Characters kPa Kgf cm2 bar psi mmHg inHg mmH2O Zeroing the Gauge As set at the factory the vacuum gauge shows a reading of 0 inches of...

Page 47: ...28 9 inHg 2000ft 610m 13 66 psi 27 8 inHg 3000ft 914m 13 16 psi 26 8 inHg 4000ft 1219m 12 68 psi 25 8 inHg 5000ft 1524m 12 22 psi 24 9 inHg 6000ft 1829m 11 77 psi 24 0 inHg 7000ft 2134m 11 33 psi 23...

Page 48: ...ler with a computer requires a 9 pin RS485 to USB converter cable and driver software Applications and Utility Software National Instrument LabView and Watlow Specview Temperature monitoring and data...

Page 49: ...ntained in it Warning Exercise caution if cleaning the unit with alcohol or flammable cleaners Always allow the unit to cool down to room temperature prior to cleaning and make sure all cleaning agent...

Page 50: ...thoroughly disinfect the corners Exercise care to avoid damaging the sensor probes When disinfecting external surfaces use disinfectants that will not damage painted metal glass and plastic MAINTAINI...

Page 51: ...ce schedule Always calibrate using industry or field standards The manufacturer recommends calibrating at the constant set point temperature of your application or at the median of your multi step set...

Page 52: ...display readings 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 The Tempe...

Page 53: ...pears on the top display line and oPEr appears in the mid display line Operations Menu 5 Advance through the Operations menu options to the Temperature Calibration offset parameter Push the green Adva...

Page 54: ...f the difference falls outside the acceptable range of your protocol again Reference Device 10 Repeat steps 2 9 up to two more times You may skip Step 3 by leaving the controller unlocked until the un...

Page 55: ...ior to making any changes to Operations options See the Configurator software description in the Data Port description of the user manual This will allow you to restore the configuration file in the e...

Page 56: ...ter LoC P This saves the Lock setting and advances to the Security parameter 5 Adjust the LoC P setting from 2 to 3 6 Advance twice Pushing Advance twice skips through the PAS E Password Enable parame...

Page 57: ...ite Security To relock controller repeat the Unlocking procedure only this time restore all of the Security lock parameters to the locked settings When first navigating from the homepage to the factor...

Page 58: ...Operation manual is required to carry out this procedure Overview You will be performing the following tasks to gather onsite data Unit Model Information Find the unit data plate see the Orientation P...

Page 59: ...ntilation Spacing Requirements Verify there is sufficient spacing around the oven for ventilation or cooling Insufficient spacing can adversely impact temperature performance A minimum of 6 inches 152...

Page 60: ...sor probe at the center of the bottom shelf with the probe head in direct contact with the shelf surface 3 The oven chamber must be sealed and be under vacuum See the Place the Chamber Under Vacuum en...

Page 61: ...the chamber temperature Ambient What is the room temperature For best results measure the temperature in the same section of the room where the unit is located Do not place your thermometer on the un...

Page 62: ...diagnostic resources to share Datalogger data Pictures and video of unit in failure mode How long has the temperature issue been occurring Share Share the SDRAP and Unit Specifications data with Techn...

Page 63: ...eration manual is required to carry out this procedure Overview You will be performing the following tasks to gather onsite data Unit Information Find the unit data plate see the Orientation Photos on...

Page 64: ...mum flow capacity of 5 cubic feet per minute cfm greater than the chamber volume Example a 2 cubic foot chamber should be connected to a pump that can evacuate at least 7 cubic feet per minute Is the...

Page 65: ...t be empty sealed and under full achievable vacuum levels See the Evacuating the Oven Chamber entry on page 42 4 Check the primary chamber gasket for damage This is the gasket mounted either on the ch...

Page 66: ...sult in damage to your vacuum pump Vacuum Valve Open The vacuum valve must be open to allow a connected vacuum supply to evacuate the oven chamber Display Reading Record the chamber pressure level sho...

Page 67: ...uge as a positive number 4 Isolate the chamber by closing the vacuum valve 5 Monitor the vacuum gauge for 1 hour If the pressure on the gauge increases this may indicate a significant leak 6 Monitor t...

Page 68: ...r files Pictures and video of unit in failure mode Time How long has the vacuum issue been occurring Share Share the Vacuum Diagnostic Data Log and Unit Specifications data with Technical Support This...

Page 69: ...Description Parts Number Description Parts Number Adjustable Leveling Feet 2700506 Shelf Short CVO 2 HT 9751226 Fuse T16A 250V 5x20mm 3300513 Shelf Clip Individual 1 CVO 5 HT 1250510 Power Cord 125 v...

Page 70: ...aulic fluids Attacked by Ozone except PVC blends ketones esters aldehydes chlorinated and nitro hydrocarbons CVO 2 HT 3450708 CVO 5 HT 3450724 Fluorosilicone rated to 175 C Applications Acidic Resista...

Page 71: ...71 P a g e cascadesciences com Tel 503 847 9047 REPLACEMENT PARTS...

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