Cascade Sciences CVO-2, CVO-2-2 Instruction Manual
Benchtop Vacuum Purge Ovens
CVO-2 CVO-2-2
Installation - Operation Manual
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Benchtop Vacuum Purge Ovens
CVO-2: 110 – 120 Voltage North America
CVO-2-2: 220 – 240 Voltage
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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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.................................................................................................................................................. 9
Vacuum Supply Required .................................................................................................................................................. 10
Gaskets ................................................................................................................................................................................... 10
RECEIVING YOUR OVEN .........................................................................................................................................11
Inspect the Shipment ............................................................................................................................................................ 11
Orientation.............................................................................................................................................................................. 12
Record Data Plate Information ......................................................................................................................................... 14
INSTALLATION ......................................................................................................................................................... 15
Installation Checklist ........................................................................................................................................................... 15
Required Ambient Conditions ........................................................................................................................................... 16
Environmental Disruption Sources .................................................................................................................................. 16
Power Source Requirements ............................................................................................................................................. 17
General Power Safety .......................................................................................................................................................... 17
Lifting and Handling ............................................................................................................................................................ 18
Leveling ................................................................................................................................................................................... 18
Install the Oven ..................................................................................................................................................................... 18
Installation Cleaning ............................................................................................................................................................ 18
Shelving Installation............................................................................................................................................................. 19
Connect to the Vacuum Supply ...................................................................................................................................... 20
Connect to a Gas Backfill Supply .................................................................................................................................... 21
GRAPHIC SYMBOLS ............................................................................................................................................... 23
CONTROL OVERVIEW ............................................................................................................................................ 25
OPERATION.............................................................................................................................................................. 27
Safety Guidelines .................................................................................................................................................................27
Operating Precautions ....................................................................................................................................................... 28
Theory of Operation ........................................................................................................................................................... 29
Put the Oven into Operation ............................................................................................................................................. 31
Put the Chamber Under Vacuum ................................................................................................................................... 33
Set the Temperature Set Point ........................................................................................................................................ 34
Over Temperature Activation .......................................................................................................................................... 35
Vacuum Gauge Operations ............................................................................................................................................. 36
Maximum Obtainable Vacuum ......................................................................................................................................... 37
Pressure Units Conversion Chart ..................................................................................................................................... 37
Data Port ................................................................................................................................................................................ 38
USER MAINTENANCE ............................................................................................................................................. 39
Cleaning and Disinfecting ................................................................................................................................................. 39
Maintaining Atmospheric Integrity ................................................................................................................................. 40
Electrical Components ....................................................................................................................................................... 40
Vacuum Pump Maintenance ............................................................................................................................................. 41
Calibrate the Temperature display ................................................................................................................................ 42
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REPLACEMENT PARTS LIST.................................................................................................................................. 47
Replacement Gaskets ........................................................................................................................................................ 48
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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.
The units have been tested to the following requirements:
CAN/CSA-C22.2 No. 61010-1:2012 + U2:2016-04
CAN/CSA-C22.2 No. 61010-2-010:2015
UL 61010-1:2012/R:2016-04
UL 61010-2-010:2015
EN 61010-1:2010
EN 61010-2-010:2014
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CERTIFICATIONS
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UNIT SPECIFICATIONS
Please refer to the oven data plate for individual electrical specifications.
Technical data specified applies to units with standard equipment at an ambient temperature of 25°C
±3° (77°F ±5.4°) and at nominal voltage. The temperatures specified are determined in accordance to
factory standard following DIN 12880 respecting the recommended wall clearances of 10% of the
height, width, and depth of the inner chamber. All indications are average values, typical for units
produced in the series. We reserve the right to alter technical specifications at all times.
TEMPERATURE
Model Range Uniformity Stability
CVO-2 Ambient +26°F to 250°F ±1.5° @105°F
CVO-2-2 Ambient +26°F to 250°F ±1.5° @105°F
POWER
Model AC Voltage Amperage Frequency
CVO-2
CVO-2-2
110 – 120 6.0 50/60 Hz
220 – 240 4.0 50/60 Hz
VACUUM
Operational Vacuum Range - All Ovens
inHg mmHg kPa bar
-3.0 to -29.9 -76 to -760 -10 to -101
± 0.4°F @ 105°F
± 0.4°F @ 105°F
-0.1016 to -1.0125
Vacuum Display Range – All Ovens
inHg mmHg kPa bar
0.0 to -29.9 37.5 to - 757
5 to -101
0.05 to -1.013
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UNIT SPECIFICATIONS
WEIGHT
Model Shipping Weight Unit Weight
CVO-2
CVO-2-2
DIMENSIONS
Inches
Model Exterior W × D × H Interior W × D × H
CVO-2 18.8 x 24.5 x 24.5 in 12.0 x 20.0 x 12.0 in
CVO-2-2 18.8 x 24.5 x 24.5 in 12.0 x 20.0 x 12.0 in
Millimeters
Model Exterior W × D × H Interior W × D × H
CVO-2 478 x 622 x 622 305 x 508 x 305
CVO-2-2 478 x 622 x 622 305 x 508 x 305
183 lb / 83.0 kg 148 lb / 67.1 kg
183 lb / 83.0 kg 148 lb / 67.1 kg
CAPACITY
Model Cubic Feet Liters
CVO-2
CVO-2-2
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1.67 47.2
1.67 47.2
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INTRODUCTION
READ THIS MANUAL
Failure to follow the guidelines and instructions in this user manual may create a protection
impairment by disabling or interfering with the unit safety features. This can result in injury or death.
Before using the unit, read the manual in its entirety to understand how to install, operate, and
maintain the unit in a safe manner. Keep this manual available for use by all operators. Ensure all
operators are given appropriate training before the unit begins service.
Intended Applications and Locations
CVO vacuum ovens are engineered for drying, curing, and baking applications under vacuum in
professional, industrial, and 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 of the United States,
UTC -8) Monday - Friday. Please have the following information ready when calling or emailing Technical
Support: the model number and the serial number (see page 14).
PHONE: 866-466-7511 or 503-847-9047
Cascade Sciences
5285 NE Elam Young Parkway
Unit B100
Hillsboro OR, 97124
ENGINEERING IMPROVEMENTS
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.
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Vacuum Pump
Building
INTRODUCTION
VACUUM SUPPLY REQUIRED
CVO ovens require a vacuum supply source, which must be purchased separately from
the oven. Please see the Cascade Sciences website for pumps and vacuum system
accessories suitable for your application.
cascadesciences.com/vacuum-pumps
Minimum Vacuum Draw
In order to seal completely, the oven chamber must be under a minimum vacuum draw of:
Vacuum Supply
inHg mmHg kPa bar
-3.0 -76
-10
-0.1016
GASKETS
Gaskets are high-wear items, subject to compression forces, heat, and outgassed
byproducts. 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. The gasket must be replaced periodically and is rated to 221°F (105°C). It is
resistant to solvents but not acids. See page 48 for more information on gasket type
suitability for baking applications.
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RECEIVING YOUR OVEN
INSPECT THE SHIPMENT
• 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
properly.
When you receive your unit, inspect it for concealed loss or damage to its interior and exterior. If you
find any damage to the unit, follow the carrier’s procedure for claiming damage or loss.
1. Carefully inspect the shipping carton for damage. Save the shipping carton until you are
certain that the unit and its accessories function properly
2. Report any damage to the carrier service that delivered the unit.
3. If the carton is not damaged, open the carton and remove the contents.
4. The unit should come with an end-user Installation and Operation Manual.
5. Verify that the correct number of accessories have been included.
6. Carefully check all packaging for loose accessory items before discarding.
Included Accessories:
Tall Shelves Medium Shelves Short Shelf w/ Clip Power Cord Leveling Feet
2 2 1 1 4
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Control Panel
Intake Vent Control (allows
the oven chamber)
Intake Vent Port ¼ inch OD
USB Data Port
Power Cord Inlet
Chamber Door
Latch
CVO-2s
Vacuum Valve
Vacuum Port 3/8 inch OD
KF-25 Vacuum Port
Temperature Sensor
Access Port
Chamber Gasket
RECEIVING YOUR OVEN
ORIENTATION
Probe
Control
external atmosphere into
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Power Cord Inlet with fuse
USB Data Port
Intake Vent – To the oven
chamber ¼ in (6.35mm) OD
CVO-2
Data Plate
Vacuum Inlet 3/8in (9.52mm) OD -
Power Cord Inlet with fuse
USB Data Port
Intake Vent – To the oven
chamber ¼ in (6.35mm) OD
Data Plate
Vacuum Inlet 3/8in (9.52mm) OD -
Fuse Holder, 2nd Fuse
CVO-2-2
RECEIVING YOUR OVEN
Power Panels
Located on the back of each unit
Connect the vacuum pump or supply
Connect the vacuum pump or supply
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Model Number
RECEIVING YOUR OVEN
RECORD DATA PLATE INFORMATION
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
Serial Number
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INSTALLATION
INSTALLATION CHECKLIST
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. See page
oven gas and vacuum port locations.
Check that the required ambient conditions, ventilation, and spacing for the oven are
met, page
• Unit dimensions may be found on page 8.
16.
20 for the
Check for performance-disrupting heat and cold sources in the environment, page 16.
Check that a suitable electrical outlet and power supply for the oven is present, page 17.
Check that a suitable electrical outlet and power supply for the vacuum pump is present. Please
see the pump operator manual for electrical requirements.
Install the Oven in a suitable workspace location
Review the lifting and handling instructions, page 18.
Install the oven in its workspace location, page 18.
Make sure the oven is level, page 18.
Set up the Oven for use
Clean the oven shelving. Clean the chamber if needed, page 18.
Install the shelving in the oven chamber, page 19.
Connect the oven to its vacuum supply source, page 20.
Optional: Connect the oven to a neutral purging gas. See page 21.
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