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Summary of Contents for Cascade CVO-2
- Page 1 Benchtop Vacuum Purge Ovens CVO-2 CVO-2-2 Installation - Operation Manual...
- Page 2 Part Number (Manual): 4861791 Revision: February 22, 2018 The CVO-2 requires a standard 110 – 120 volt NEMA 5-15 power supply outlet to plug into. The CVO-2-2 requires a NEMA 6-15R 220 – 240-volt power supply outlet to plug into.
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Page 3: Table Of Contents
TABLE OF CONTENTS CERTIFICATIONS ..............................5 UNIT SPECIFICATIONS ............................. 7 Temperature .................................... 7 Power ......................................7 Vacuum ..................................... 7 Weight ......................................8 Dimensions ....................................8 Capacity ....................................8 INTRODUCTION ................................ 9 Read this Manual ..................................9 Contacting Assistance ................................9 Engineering Improvements.............................. - Page 4 REPLACEMENT PARTS LIST..........................47 Replacement Gaskets ................................ 48 P a g e cascadesciences.com Tel. 503 847-9047...
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Page 5: Certifications
CERTIFICATIONS This certificate satisfies NRTL safety requirements TÜV SÜD CUE Certificate Number: U8 17 04 64872 077 These units are CUE listed by TÜV SÜD as forced air 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 6 CERTIFICATIONS P a g e cascadesciences.com Tel. 503 847-9047...
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Page 7: Unit Specifications
All indications are average values, typical for units produced in the series. We reserve the right to alter technical specifications at all times. EMPERATURE Model Range Uniformity Stability CVO-2 Ambient +26°F to 250°F ±1.5° @105°F ± 0.4°F @ 105°F CVO-2-2 Ambient +26°F to 250°F ±1.5° @105°F ±... -
Page 8: Weight
UNIT SPECIFICATIONS EIGHT Model Shipping Weight Unit Weight 183 lb / 83.0 kg 148 lb / 67.1 kg CVO-2 183 lb / 83.0 kg 148 lb / 67.1 kg CVO-2-2 IMENSIONS Inches Model Exterior W × D × H Interior W × D × H CVO-2 18.8 x 24.5 x 24.5 in... -
Page 9: 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 10: Vacuum Supply Required
Keeping a spare gasket on hand during operations is strongly recommended. Each CVO-2 oven comes with a replaceable Buna silicon gasket installed on the chamber liner. This gasket seals against the chamber door to maintain the vacuum integrity of the chamber. -
Page 11: Receiving Your Oven
RECEIVING YOUR OVEN NSPECT THE HIPMENT When a unit leaves the factory, safe delivery becomes the responsibility of the carrier. • Damage sustained during transit is not covered by the manufacturing defect warranty. • Save the shipping carton until you are certain that the unit and its accessories function •... -
Page 12: Orientation
RECEIVING YOUR OVEN RIENTATION CVO-2s Chamber Gasket Access Port Temperature Sensor Chamber Door Probe Latch Control Panel Vacuum Valve Intake Vent Control (allows Control external atmosphere into the oven chamber) KF-25 Vacuum Port Intake Vent Port ¼ inch OD USB Data Port Vacuum Port 3/8 inch OD Power Cord Inlet 12 |... - Page 13 RECEIVING YOUR OVEN Power Panels Located on the back of each unit CVO-2 Intake Vent – To the oven Vacuum Inlet 3/8in (9.52mm) OD - chamber ¼ in (6.35mm) OD Connect the vacuum pump or supply Data Plate USB Data Port...
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Page 14: Record Data Plate Information
RECEIVING YOUR OVEN ECORD LATE NFORMATION Locate the data plate on the left side of the oven near the back. The data plate contains the oven model number and serial number. Enter this information below for future reference. Data Plate Information Model Number Serial Number 14 |... -
Page 15: Installation
INSTALLATION NSTALLATION HECKLIST Carry out the procedures and steps listed below to install the oven in a new workspace location and prepare it for use. All procedures are found in the Installation section of this manual. Pre-Installation Verify that a vacuum supply source (stand-alone pump or in-house system) suitable for your application is available and can be connected to the oven. -
Page 16: Required Ambient Conditions
INSTALLATION EQUIRED MBIENT ONDITIONS 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). Required Clearances Leave at least 12 inches (305mm) of empty space between the top and back of the oven and •... -
Page 17: Power Source Requirements
10%. CVO-2-2 The recommended wall circuit breakers for these units are CVO-2 15 amps, CVO-2-2 10 amps. • Use a separate circuit to prevent loss of product due to overloading or circuit failure. The •... -
Page 18: Lifting And Handling
EVELING The unit must be level and stable for safe operation. CVO-2 ovens ship with four Install the 4 leveling feet with the 4 corner holes on the bottom of the oven. The oven must be level and stable for safe operation. -
Page 19: Shelving Installation
INSTALLATION HELVING NSTALLATION Heating in a vacuum environment takes place primarily through Temperature Probe Shelf Clip conduction. Heat is transported from the heating elements to the samples or product through the shelves. Perform the following steps to install the shelves so that heat conducts properly and the oven measures the correct shelving temperature. -
Page 20: Connect To The Vacuum Supply
INSTALLATION ONNECT TO THE ACUUM UPPLY KF-25 Vacuum Flange Vacuum Port 3/8 inch (9.52mm) Figure 1: Vacuum Connections Figure 2: Vacuum Line Connected to the Vacuum Port Use of clamps to secure tubing to the Vacuum Port and Chamber Vent is recommended. •... -
Page 21: Connect To A Gas Backfill Supply
INSTALLATION ONNECT TO A ACKFILL UPPLY Optional: You may connect a clean or neutral gas supply—such as nitrogen (N ) or argon—to the vent intake port located on the back of the oven. This supply will backfill the evacuated oven chamber when the vent intake valve is opened on the front control panel. - Page 22 INSTALLATION 22 | P a g e cascadesciences.com Tel. 503 847-9047...
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Page 23: 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 user manual. Symbol Definition Consult the user manual. Consulter le manuel d'utilisation AC Power Repère le courant alternatif... - Page 24 GRAPHIC SYMBOLS 24 | P a g e cascadesciences.com Tel. 503 847-9047...
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Page 25: Control Overview
CONTROL OVERVIEW Light Switch Controls the oven chamber light. Power Switch The Power Switch controls all power the oven and its systems. The switch must be in the I (on) position for the unit to function. Main Temperature Display and Control Marked SET TEMPERATURE, this display shows the current oven chamber temperature accurate to within 1°F. - Page 26 CONTROL OVERVIEW Vacuum Gauge This digital gauge shows the chamber vacuum level relative to the ambient atmospheric pressure. The gauge activates automatically when the Main Power switch is in the On ( I ) position. In its factory setting, the gauge shows the chamber pressure in inches of mercury (inHg), with a display range of 0 –...
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Page 27: 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, environment, and the materials being treated in the oven, as well as to prevent damage to the oven. -
Page 28: 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 Do not use this oven in unsafe improper applications that produce flammable or combustible... -
Page 29: Theory Of Operation
OPERATION HEORY OF PERATION The CVO-2 ovens are intended for use in closed-cycle, under-vacuum applications. Vacuum Vacuum is supplied to the chamber by an external vacuum pump or building system. The supply is connected to either the 3/8-inch vacuum port on the back of the oven or the KF-25 fitting. The vacuum gauge on the main control panel displays the current level of vacuum relative to room atmospheric pressure. - Page 30 OPERATION Direct radiant heating through infrared emission in a vacuum environment provides poor temperature uniformity compared to conductive heating. Heating Control The oven microprocessor stores a user-selected temperature set point. When powered, the oven heats the chamber shelves to the currently programmed temperature set point. The microprocessor board is wired to a solid-state temperature probe located in the chamber on the rear wall.
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Page 31: Put The Oven Into Operation
OPERATION When running the oven at or near its maximum temperature for the first time, there may be Note: light smoking from protective oil coatings on the elements. 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. - Page 32 OPERATION 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 33 10 Minute Minimum Leave the chamber under vacuum to perform the Set the Over Temperature Limit procedure and the optional temperature verification procedure.
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Page 33: 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. This procedure assumes the oven is powered and plumbed to a powered vacuum supply source (pump). -
Page 34: Set The Temperature Set Point
OPERATION Note: The oven temperature probe must be seated in the bottom shelf probe clip to ensure an accurate temperature display reading. See page 19. ET THE EMPERATURE OINT Adjust the oven temperature set point to that of your application. The chamber should be under vacuum when setting the temperature to help ensure an accurate display reading and to prepare for setting the over temperature limit heating cutoff point. -
Page 35: Over Temperature Activation
OPERATION EMPERATURE CTIVATION Possible causes for the Over Temperature Limit system cutting off heating include: An external heat source or a heat source inside the chamber is causing the chamber • temperature to spike. The temperature controller or its sensor probe have failed and must be replaced in order to •... -
Page 36: Vacuum Gauge Operations
OPERATION ACUUM AUGE PERATIONS Change the Unit of Measurement Perform the steps below to switch the unit of measurement displayed by the gauge. 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. -
Page 37: Maximum Obtainable Vacuum
OPERATION AXIMUM BTAINABLE ACUUM The maximum vacuum obtainable, as measured by the oven gauge, is in part a function of altitude While a vacuum pump will evacuate the same percentage of atmosphere from the oven chamber at higher altitudes, less overall pressure is expelled because of the reduced density. Or put differently, at sea level there are 29.9 inches of mercury pressure that can be expelled. -
Page 38: Data Port
OPERATION The USB data port, located on the back of the oven outputs a digital log line once per minute. This output logs the oven temperature and vacuum level. Required Software: • Viewing and logging this output requires a terminal emulator program, such as the open source (BSD license) emulator, Tera Term. -
Page 39: User Maintenance
USER MAINTENANCE Warning: Prior to maintenance or cleaning of this unit, disconnect the power cord from the power supply. 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 40: Maintaining Atmospheric Integrity
LECTRICAL OMPONENTS Electrical components do not require maintenance. If the oven fails to operate as specified, please contact your distributor or Cascade Sciences for assistance. 40 | P a g e cascadesciences.com Tel. 503 847-9047... -
Page 41: Vacuum Pump Maintenance
USER MAINTENANCE ACUUM AINTENANCE Vacuum pumps are high wear equipment and require replacement of seals and diaphragms at least once per year. Poor vacuum performance or bubbling or strained noises from the pump may indicate that the pump is need of maintenance. Pump Manuals Refer to the operation manual supplied with your vacuum pump for recommended maintenance routines such as oil levels, replacement of sorbent charge, and exhaust filter change outs. -
Page 42: Calibrate The Temperature Display
The device must be accurate to at least 0.1°F and should be regularly calibrated by a third party. Never use alcohol or mercury based thermometers! Cascade Sciences CVO ovens do not normally require calibration. Should your SOP or Quality program require calibrations, follow this guideline. - Page 43 USER MAINTENANCE 5 ) Heat up and stabilization period: The oven temperature must be stable at temperature and under vacuum in order to perform an accurate calibration. The temperature is considered stabilized when the oven chamber has operated at your calibration temperature for at least 30 minutes with no fluctuations of ±1°F or greater.
- Page 44 USER MAINTENANCE Calibration continued Place the oven in temperature calibration mode. Set Temperature a. Press and hold both the UP and DOWN arrow buttons simultaneously. The Temperature Display will show the letters “C O”, • then begin flashing the current temperature value. Set Temperature Note: If an arrow key is not pressed for five seconds, the Temperature Display will cease flashing, and store the last...
- Page 45 USER MAINTENANCE Calibration continued Allow the oven to stabilize after achieving the temperature set Reference Device point with corrected display value. Note: The unit is stabilized when no fluctuations of ±1°F or greater have been detected with the reference device for a minimum of 30 minutes.
- Page 46 USER MAINTENANCE 46 | P a g e cascadesciences.com Tel. 503 847-9047...
- Page 47 Parts Number Adjustable Leveling Feet, CVO-2 2700512 Fuse, CVO-2, 5X20MM 6.3A 250V Requires 1 fuse. Please see the power panel illustration page 13 for the CVO-2 fuse location. 3300515 Fuse, CVO-2-2, 5X20mm, T4.0A 250V 2 fuses are required to operate the oven. Please see the power panel illustration page 13 for the CVO-2-2 fuse locations.
- Page 48 REPLACEMENT PARTS LIST EPLACEMENT ASKETS Available Gaskets Types Part Number Silicon, black or red, (comes with oven), rated to 446°F (230°C) Applications: General and high temperature Resistant to: Moderate or oxidizing chemicals, ozone, and 3450707 concentrated sodium hydroxide Attacked by: Many solvents, oils, concentrated acids, and diluted sodium hydroxide Buna rated to 221°F (105°C) Applications: Solvent...
- Page 49 REPLACEMENT PARTS LIST 49 | P a g e cascadesciences.com Tel. 503 847-9047...
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