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Cascade Sciences CVO-2-HT Installation And Operation Manual

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Vacuum Ovens
CVO-2-HT CVO-5-HT
Installation - Operation Manual

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  • Page 1 Vacuum Ovens CVO-2-HT CVO-5-HT Installation - Operation Manual...
  • Page 2 Pictured on front cover left to right: CVO-2-HT, CVO-5-HT P a g e cascadesciences.com Tel. 503 847-9047...
  • Page 3 Vacuum Ovens 110 – 120 Volts CVO-2-HT CVO-5-HT Part Number (Manual): 4861821 Revision: July 13, 2018 P a g e cascadesciences.com Tel. 503 847-9047...

  • Page 4: Table Of Contents

    TABLE OF CONTENTS CERTIFICATIONS ............................... 7 UNIT SPECIFICATIONS ............................9 Temperature .................................... 9 Power ......................................9 Weight ...................................... 10 Dimensions ..................................... 10 Capacity ....................................10 Shelf Capacity by Weight ..............................10 Vacuum ....................................11 INTRODUCTION ............................... 13 Read this Manual .................................. 13 Contacting Assistance ................................
  • Page 5 Electrical Components ............................... 50 Vacuum Pump Maintenance ............................50 Storage ....................................50 Calibrate the Temperature display ..........................51 Unlocking the Temperature Controller ......................... 55 Diagnostic Questionnaire - Heating Issues ......................... 58 Diagnostic Questionnaire – Vacuum Leak Issues ..................... 63 REPLACEMENT PARTS ............................69 Replacement Gaskets ................................
  • Page 6 TABLE OF CONTENTS P a g e cascadesciences.com Tel. 503 847-9047...

  • Page 7: Certifications

    CERTIFICATIONS This certificate satisfies NRTL safety requirements TÜV SÜD CUE Certificate Number: U8 17 09 64872 085 These units are CUE listed by TÜV SÜD as vacuum ovens for appropriate professional, industrial, or educational use. TÜV SÜD America Inc. is an OSHA recognized NRTL and a Standards Council of Canada accredited certification body.
  • Page 8 CERTIFICATIONS P a g e cascadesciences.com Tel. 503 847-9047...

  • Page 9: Unit Specifications

    EMPERATURE Range, Stability, and Uniformity Model Range Stability Uniformity CVO-2-HT ±6% of Set Point Ambient +20° to 220°C ± 0.2°C @ 150°C CVO-5-HT Ambient +20° to 220°C ± 0.25°C @ 150°C ±6% of Set Point The maximum temperature is dependent on the type of door gasket installed.

  • Page 10: Weight

    *35 lb / 15.8 kg with weight evenly distributed across the shelf. **105 lb / 68 kg total load for the CVO-2-HT. Exceeding this limit risks damaging the chamber liner. ***105 lb / 102 kg total load for the CVO-5-HT. Exceeding this limit risks damaging the chamber liner.

  • Page 11: Vacuum

    UNIT SPECIFICATIONS ACUUM All Ovens Operational Vacuum Range inHg mmHg -0.1016 to -1.0125 -3.0 to -29.9 -76 to -760 -10 to -101 Vacuum Display Range inHg mmHg 0.0 to -29.9 37.5 to - 757 5 to -101 0.05 to -1.013 Lowest Rated Chamber Pressure 24 mTorr at 150°C Leak Rate...
  • Page 12 UNIT SPECIFICATIONS 12 | P a g e cascadesciences.com Tel. 503 847-9047...

  • Page 13: Introduction

    NGINEERING MPROVEMENTS Cascade Sciences 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 oven dealer or customer service representative for assistance.

  • Page 14: Vacuum Supply Required

    (cfm) for each cubic foot of oven chamber volume (CuFt). In other words, 1 pump cfm per oven chamber CuFt. Model Chamber Capacity Min. Pump Capacity CFM Min. Pump Capacity LPM CVO-2-HT 1.67 CuFt 2 cfm 57 Liters per Minute CVO-5-HT 4.50 CuFt...

  • Page 15: Gaskets

    INTRODUCTION ASKETS Gaskets are non-warranty, high-wear consumable items subject to compression forces, heat, and outgassed byproducts. Heavy usage rates may necessitate frequent replacements. The manufacturer strongly recommends keeping a spare gasket 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.
  • Page 16 INTRODUCTION 16 | P a g e cascadesciences.com Tel. 503 847-9047...

  • Page 17: Receiving Your Oven

    4. The unit should come with an Installation and Operation Manual and a controller programming guide. 5. Verify the correct number of accessories has been included. 6. Carefully check all packaging for loose accessories before discarding. Included Accessories: CVO-2-HT Tall Shelves Short Bottom Shelf Power Cord Leveling Feet...

  • Page 18: Orientation

    RECEIVING YOUR OVEN RIENTATION Figure 1: CVO-5-HT Back of Unit: See page 20 Shelf Standard Rail Chamber Gasket Seal Temperature Sensor Probe Chamber Door Oven Chamber Main Control Panel Vacuum Control Panel and Display 18 | P a g e cascadesciences.com Tel.
  • Page 19 RECEIVING YOUR OVEN Figure 2: CVO-2-HT Chamber Door Tall Shelf Back of Unit: See page 20 Tall Shelf Short Shelf Temperature Probe Chamber Gasket Seal Main Control Panel Vacuum Control Access Port Panel and Display (KF-25 Fitting) 19 | P a g e cascadesciences.com...
  • Page 20 RECEIVING YOUR OVEN Back of Ovens KF-25 Vacuum Port (Includes Blank and Clamp, not pictured here) Data Port, 9-Pin RS485 Vacuum Port, 3/8 inch (9.52 mm) Chamber Vent Inlet Port ¼ inch (6.35 mm) Data Plate Power Cord Inlet Fuse Holder 20 | P a g e cascadesciences.com...

  • Page 21: Record The Data Plate Information

    RECEIVING YOUR OVEN ECORD THE LATE NFORMATION 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 is located on the back of the oven above the power inlet. •...
  • Page 22 RECEIVING YOUR OVEN 22 | P a g e cascadesciences.com Tel. 503 847-9047...

  • Page 23: Installation

    INSTALLATION NSTALLATION ROCEDURE HECKLIST For installing the oven in a new workspace location. Pre-Installation  Verify that a vacuum supply source suitable for your application is available and can be connected to the oven, page 14. See page 30 for the oven gas and vacuum port locations. •...

  • Page 24: Required Ambient Conditions

    6” (152 mm) 6” (152 mm) Door Swing CVO-2-HT: 20.5” (521 mm) CVO-5-HT: 27.0” (686 mm) 6 inches (152 mm) of clearance is required on the sides. 12 inches (305 mm) of headspace clearance is required between the top of the unit and any overhead partitions.

  • Page 25: Power Source Requirements

    Power Source: The wall power outlet must meet the power requirements listed on the unit data plate. Model AC Voltage Amperage Frequency Standard 15- 110 – 120 50/60 Hz CVO-2-HT amp NEMA 110 – 120 50/60 Hz CVO-5-HT 5-15 power outlet. Wall power sources must be protective earth grounded and single phase. •...

  • Page 26: General Power Safety

    INSTALLATION ENERAL OWER AFETY Your unit and its recommended accessories are designed and tested to meet strict safety requirements. It is designed to connect to a power source using the specific power cord type shipped with the unit. For continued safe operation of your unit, always follow basic safety precautions including: Always plug the unit power cord into a protective earth grounded electrical outlet that •...

  • Page 27: Leveling

    INSTALLATION EVELING The unit must be level and stable for safe operation. Install the 4 leveling feet in the 4 corner holes in the bottom of the oven. To prevent damage when moving the unit, turn all 4 leveling feet so that the leg of each foot Note: sits inside the unit.

  • Page 28: Shelving Installation

    Never place samples or product on the oven chamber floor. The floor runs hotter than the shelf temperatures. All heating specifications for the oven are for shelving temperatures. CVO-2-HT Temperature Probe Shelf Clip Bottom of Short Shelf Carefully slide the short shelf into position on the chamber floor, sliding the clip on the bottom of the shelf onto the oven temperature probe.
  • Page 29 INSTALLATION Shelving Installation Continued CVO-5-HT Shelving To ensure accurate temperature measurement, one shelf bottom must be in close proximity to the oven temperature probe. This probe extends out from the chamber back wall. Do not place the shelf in direct contact with the probe. Shelf Probe Install 4 Shelf Clips...

  • Page 30: Connect To The Vacuum Supply

    INSTALLATION ONNECT TO THE ACUUM UPPLY Use clamps to secure tubing to the Vacuum and Vent Ports. KF-25 Vacuum Port 1. Vacuum Supply: Connect to the 3/8 inch (9.52mm) Vacuum Port Optional: Connect a clean gas supply to the Vent Port (Backfill Inlet).

  • Page 31: Graphic Symbols

    GRAPHIC SYMBOLS The oven is provided with multiple graphic symbols on its interior and exterior surfaces. The symbols identify hazards and the functions of the adjustable components, as well as important notes in the operation manual. Symbol Definition Consult the user manual Consulter le manuel d'utilisation Over Temperature Limit system Thermostat température limite contrôle haute...
  • Page 32 GRAPHIC SYMBOLS 32 | P a g e cascadesciences.com Tel. 503 847-9047...

  • Page 33: Control Overview

    CONTROL OVERVIEW Control Panels Power Switch The switch illuminates when in the ON ( I ) position. Temperature Controller - Display on Home Page Top Line (Red): Present chamber shelving temperature Middle Line (Green): The constant temperature set point Bottom Line: Flashing “2” indicates active heating While on the Home Page, the Up and Down arrow buttons adjust the constant temperature set point.
  • Page 34 CONTROL OVERVIEW Vacuum Gauge As set at the factory, this gauge shows the chamber vacuum level relative to sea level atmospheric pressure in inches of mercury (inHg) with a display range of 0 to -29.9inHg. Zero is the room atmosphere pressure at sea level and -29.9inHg a near-perfect vacuum. See page 46 for how to display other units of measurement or zero the gauge to your local altitude.

  • Page 35: 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 Safety Guidelines and Operating Precautions in this section prior to operating the oven. The operators must follow these instructions to prevent injuries and to safeguard their health, the environment, and the materials being treated in the oven, as well as to prevent damage to the oven.

  • Page 36: Operating Precautions

    OPERATION Warning Hot Surfaces: These areas are marked with Hot Surface labels. Proper protective equipment should be employed to minimize the risk of burns. Avertissement Surface Chaude: Ces zones sont marquées avec des étiquettes de surface chaude. Un équipement de protection approprié devrait être utilisé pour minimiser le risque de brûlures. PERATING RECAUTIONS •...

  • Page 37: Theory Of Operation

    OPERATION HEORY OF PERATION Vacuum TVO ovens are intended for use in closed-cycle, under-vacuum applications. Vacuum is supplied by an external vacuum supply system (a pump or building system) connected to the vacuum port on the back of the oven. Vacuum levels obtained in the oven chamber are dependent on pump type and performance, valve settings, and the nature of the application or process, including the volume of materials outgassed.
  • Page 38 OPERATION Heating Control The oven temperature controller stores an user-selected constant temperature set point. When powered, the oven heats the chamber shelves to the set point. The controller board is wired to a solid-state temperature probe located in the chamber on the rear wall. When the controller detects that the shelf temperature has dropped below the temperature set point, it pulses power to the heating elements.

  • Page 39: Put The Oven Into Operation

    OPERATION UT THE VEN INTO PERATION Verify all of the required procedures in the Installation section have been carried out. Then perform the following steps and procedures to prepare the oven for use in a new location. Attach the Power Cord Attach the power cord that came with the unit to the power inlet receptacle on the back of the oven.
  • Page 40 OPERATION Continued from the previous page Verify Vacuum Integrity Place the Chamber Under Vacuum for a minimum of 10 minutes to verify the integrity of the vacuum supply system. See page 42. 10 Minutes Minimum Set the Operating Temperature • Set the constant temperature set points.

  • Page 41: Set The High Temperature Limit

    OPERATION ET THE EMPERATURE IMIT Note: Test the high limit system once per year for functionality. The high temperature limit is set by the end-user at least 10°C above the highest temperature the oven will run at during your recipe profile or constant-temperature application. Advance to the Limit High Set Point, starting on the Homepage Push the Advance button repeatedly until “Lh.S1”...

  • Page 42: Put The Chamber Under Vacuum

    OPERATION UT THE HAMBER NDER ACUUM Put the oven chamber under vacuum for at least 10 minutes when first putting the oven into operation in a new location to verify the integrity of the vacuum supply system. The oven must be connected to a vacuum supply source prior to starting this procedure. Evacuate the Oven Chamber Verify the Vacuum and Vent Valve controls are in the closed position This protects your vacuum pump from exposure to streaming...

  • Page 43: Setting The Constant Temperature Set Point

    OPERATION ETTING THE ONSTANT EMPERATURE OINT Adjust the constant temperature Set Point on the Home Page Stay 10°C below the high limit • set point. Note: Holding down an arrow button will cause the temperature to advance in increments of ten (10). Adjust Release the Arrow buttons after adjusting the Set Point •...

  • Page 44: High Temperature Limit Activated

    OPERATION EMPERATURE IMIT CTIVATED The High Limit system blocks heating in the oven chamber if chamber temperature meets or exceeds the present High Limit setting. Heating remains disabled until the High Limit cutoff is manually cleared by the oven user. Indicators The oven controller display screen flashes two alternating alert screens when a High Limit cutoff is active.

  • Page 45: Change Unit Of Measurement

    OPERATION ⁰C ⁰F  HANGE NIT OF EASUREMENT The controller can display temperatures in either Celsius or Fahrenheit. 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.

  • Page 46: Vacuum Gauge Operations

    OPERATION ACUUM AUGE PERATIONS Change the Unit of Measurement Place the vacuum gauge in its adjustment mode. a. Press and hold the “M” button for approximately 3 seconds • The display will begin to blink and show a unit of measurement Inches of Mercury 2.

  • Page 47: Maximum Obtainable Vacuum

    OPERATION AXIMUM BTAINABLE ACUUM The maximum obtainable vacuum is determined by the altitude of the oven workspace or laboratory environment. The atmosphere is less dense at higher altitudes than at sea level. While a vacuum pump will evacuate the same percentage of atmosphere from the oven chamber, less overall pressure is expelled because of the reduced density.

  • Page 48: Data Port

    OPERATION 9-Pin Port The 9-pin RS485 data port, located on the back of the oven, connects to the oven temperature controller. The port is primarily intended for updating the controller software but can be used for data logging and graphical profile programming. Accessing the controller with a computer requires a 9-pin RS485-to-USB converter cable and driver software.

  • Page 49: User Maintenance

    USER MAINTENANCE Warning: Disconnect the unit from its power supply prior to maintenance or cleaning of this unit. 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 Hazardous Material Spill Containment protocol.

  • Page 50: Maintaining Atmospheric Integrity

    USER 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: Turn off and unplug the unit to safeguard against electrical hazards. •...

  • Page 51: Calibrate The Temperature Display

    USER MAINTENANCE ALIBRATE THE EMPERATURE DISPLAY A calibration reference device must be purchased separately. For best results, use a digital device Note: with thermocouple probes. The device must be accurate to at least 0.1°C and should be regularly calibrated by a third party. Never use alcohol or mercury based thermometers. Temperature calibrations match the temperature display to the actual shelving temperature in the oven chamber.
  • Page 52 USER MAINTENANCE 5. Stability: The oven temperature must be stable in order to perform an accurate calibration. The temperature is considered stabilized when the oven chamber has operated under • vacuum at your calibration temperature for at least 1 hour with no fluctuations greater than the specified stability of the oven (see the Unit Specifications chapter).
  • Page 53 USER MAINTENANCE Calibration continued Unlock the controller. a. See the Unlocking procedure on page 55. Note: The temperature controller must be unlocked in order to access the Operations menu and enter a calibration offset. Navigate to the Operations menu after unlocking the controller.
  • Page 54 USER MAINTENANCE Calibration continued Allow the oven to stabilize after achieving the temperature set point using the offset display value. Reference Device Once the chamber has stabilized, compare the reference temperature device and oven temperature display readings. If the readings are the same or the difference •...

  • Page 55: Unlocking The Temperature Controller

    USER MAINTENANCE NLOCKING THE EMPERATURE ONTROLLER The controller must be unlocked to access the Operations menu and enter calibration offsets. The oven temperature controller is software locked at the factory to ensure the integrity of its configuration file. This safeguards against end-users accidentally altering the oven functionality or safe operating bounds.
  • Page 56 USER MAINTENANCE Unlocking the Controller continued Advance to the second security parameter, “LoC.P” This saves the Lock setting and advances to the Security parameter. Push Once Adjust the LoC.P setting from 2 to 3 Advance twice Pushing Advance twice skips through the •...
  • Page 57 USER MAINTENANCE Unlocking the Controller continued Change the “SLoC” parameter from 2 to 5 Return to the homepage The Operations page may now be reached from the Homepage Locking the Controller Always relock the controller after completing a calibration or other Operations menu procedure. Parameter Locked Unlocked...

  • Page 58: Diagnostic Questionnaire - Heating Issues

    USER MAINTENANCE IAGNOSTIC UESTIONNAIRE EATING SSUES If the unit is experiencing heating issues, use the following questionnaire to gather information on the unit, prior to contacting Technical Support. Additionally, data logger files as well as pictures and videos of the unit in failure mode are valuable diagnostic resources you can share with Tech Support.
  • Page 59 USER MAINTENANCE Does the car actually have gas in the tank? Have you physically verified the computer is Note: 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.
  • Page 60 USER MAINTENANCE Optional: Obtain a temperature reference device. A calibrated digital thermometer with a vacuum- rated thermocouple feedthrough. The device must be accurate to at least 0.1°C. Before Starting The unit must be connected to a power source that meets the requirements in the Installation chapter (page 25) and turned on.
  • Page 61 USER MAINTENANCE Diagnostic Data Procedure – SDRAP Questions Record the answers in the log on page 62. et Point? What is the current temperature set point? Chamber Temperature in Red Set Point in Green isplay? What chamber temperature is presently showing on the temperature display? eference? Optional: What temperature is the reference device presently showing for the chamber temperature?
  • Page 62 USER MAINTENANCE SDRAP Data Log Record the SDRAP question answers in this log. These questions document the unit’s behavior. SDRAP Record SDRAP Answers and Any Notes Here et Point, present setting: isplay, present Temperature reading: eference device, present reading: mbient, present temperature: Heating Indicator: ilot Lights, illuminating Y/N?

  • Page 63: Diagnostic Questionnaire - Vacuum Leak Issues

    USER MAINTENANCE – Vacuum Leak Issues IAGNOSTIC UESTIONNAIRE If the unit is experiencing problems achieving or holding a vacuum level, use this questionnaire to gather onsite information prior to contacting Technical Support. Additionally, datalogger files as well as pictures or videos of the unit in failure mode are valuable diagnostic resources to share with Tech Support.
  • Page 64 USER MAINTENANCE Does the car actually have gas in the tank? Have you physically verified the computer is Note: 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.
  • Page 65 USER MAINTENANCE Before Starting The unit must be connected to a power source that meets the requirements in the Installation chapter (page 25) and turned on. 2. Do not heat the oven. The oven must remain at ambient temperature for this procedure. 3.
  • Page 66 USER MAINTENANCE Diagnostic Data Procedure ump On and Running? Yes or no? ent Valve Closed? The vent (backfill inlet port) must be closed before applying vacuum to the chamber. Failure to do so may result in damage to your vacuum pump. acuum Valve Open? The vacuum valve must be open to allow a connected vacuum supply to evacuate the oven chamber.
  • Page 67 USER MAINTENANCE eak Verification, Y/N? Verify that the oven is leaking and not experiencing outgassing from residual contamination. If oven is hot, allow oven to cool to ambient temperature. 2. Evacuate the chamber to the lowest achievable pressure. 3. Write down the pressure displayed on the Vacuum Gauge as a positive number. 4.
  • Page 68 USER MAINTENANCE Vacuum Leak Diagnostic Data Log Record the diagnostic question answers in this log. These questions document the unit’s behavior. Record Data and Any Notes Here ump On and Running, Y/N? ent Valve Closed, Y/N? acuum Valve Open, Y/N? isplay Reading, Vacuum Gauge: erified the oven is Leaking,...

  • Page 69: Replacement Parts

    REPLACEMENT PARTS See the next page for gaskets Description Parts Number Description Parts Number Adjustable Leveling Feet Shelf Short, CVO-2-HT 9751226 2700506 Fuse, T16A 250V Shelf Clip, Individual (1), 5x20mm CVO-5-HT 3300513 1250510 Power Cord 125 volt, Shelf, CVO-5-HT 15Amp, 9ft 5 in (2.86m)

  • Page 70: Replacement Gaskets

    CVO-5-HT: 3450671 Attacked by: Ketones, low molecular weight esters, and compounds containing nitro. Gasket Dimensions CVO-2-HT – 12 x 12 Inches (305 x 304 mm) CVO-5-HT – 18 x 18 Inches (457 x 457 mm) 70 | P a g e cascadesciences.com...
  • Page 71 REPLACEMENT PARTS 71 | P a g e cascadesciences.com Tel. 503 847-9047...

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