Read Microsoft Word - S Series Vac Manual 11-14-08.doc text version

TENNEY ENVIRONMENTAL

Vacuum Test Chamber

OPERATION & MAINTENANCE MANUAL

Model No. 8S, 12S, 18S, 27S, 64S

Serial No. xxxxxxxxx, Order No. xxxxx

VACUUM CONTROLLER / INDICATOR TYPE Watlow 93 Watlow 96 Watlow 920 / 922 Watlow 942 Watlow 945 Watlow 988 / 998 Watlow F4 VersaTenn V

CHAMBER OPTIONS Chart Recorder Data Comm. GN2 Purge System xx

TPS - Thermal Product Solutions 2821 Old Route 15 New Columbia, PA 17856 570-538-7200 Fax: 570-538-7380 Rev. 11/14/08

Vacuum Chamber - Models 8S thru 64S

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TENNEY ENVIRONMENTAL

TABLE OF CONTENTS

SECTION Page

INFORMATION 1.0 2.0 3.0 4.0 5.0 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 COMPANY INFORMATION & ASSISTANCE ____________________________________ 4 SAFETY WARNINGS & SYMBOLS ___________________________________________ 5,6 PRODUCT SPECIFICATIONS & OVERVIEW ___________________________________ 7-9 DRAWINGS, INFORMATION, and VENDOR INSTRUCTION LISTINGS ______________ 10 INSTALLATION INSTRUCTIONS Delivery and Uncrating of Unit ________________________________________________ Location and Installation of Unit ______________________________________________ Equipment Access & Features _______________________________________________ GN2 Supply Connection (for optional equipment) ________________________________ Compressed Air Supply Connection (for Optional Pressurization System) ______________ Electrical Specifications ­ Special Chamber O/N 57680 ____________________________ Power Connection _________________________________________________________ Application of Power _______________________________________________________ 11 11 12,13 14 14 15 15,16 16

SYSTEMS and CONTROL 6.0 7.0 7.1 7.2 7.3 8.0 8.1 8.2 8.3 VACUUM SYSTEM ________________________________________________________ 17-20 VACUUM CONTROL ­ WATLOW CONTROLLERS Controller Types __________________________________________________________ 21 Vacuum Operation ________________________________________________________ 21 Vent Operation ___________________________________________________________ 22 VACUUM CONTROL ­ VERSATENN V CONTROLLER Controller Features ________________________________________________________ 23,24 `Micro' Version - VersaTenn V Layout __________________________________________ 25 VersaTenn V Control Functions ______________________________________________ 26,27

Vacuum Chamber - Models 8S thru 64S

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TENNEY ENVIRONMENTAL

OPTIONAL EQUIPMENT and FEATURES 9.0 10.0 11.0 12.0 13.0 PRESSURIZATION SYSTEM (Optional) ______________________________________ 28 GN2 PURGE AIR SYSTEM (Optional) ________________________________________ 29 DATA COMMUNICATIONS (Optional) ________________________________________ 30 LINKTENN32 SOFTWARE (Optional) ________________________________________ 31 CHART RECORDER ______________________________________________________ 32

CHAMBER OPERATION & MAINTENANCE 14.0 15.0 16.0 16.1 16.3 SEQUENCE of OPERATION with WATLOW CONTROLLERS ______________________ 33 SEQUENCE of OPERATION with VERSATENN V CONTROLLER ___________________ 34,35 PREVENTATIVE MAINTENANCE ____________________________________________ 36 Maintenance Checks / Procedures ____________________________________________ 36,37 Preventative Maintenance Schedule / Log ______________________________________ 38

SUPPLEMENTAL INSTRUCTIONS

MODEL 27S ­ O/N 57680 Vacuum Chamber - Models 8S thru 64S

MODEL 27S ­ O/N 57680

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TENNEY ENVIRONMENTAL

1.0

COMPANY INFORMATION & ASSISTANCE

Congratulations on purchasing a chamber from one of the fine divisions of TPS - Thermal Product Solutions. You probably already know us as Lunaire Limited. We've changed our name and expanded our vision with the intent to provide you with more diversified solutions to your thermal product process requirements. We truly hope that every aspect of chamber design and quality will measure up to your strictest standards. Your chamber has been designed to operate with the reliability you expect for the demands you impose on your product and research testing. Headquartered in New Columbia, Pennsylvania, which is located in the North-central part of the state, TPS includes the following five divisions that manufacture environmental test chambers and industrial ovens.

Tenney Environmental - - - - Lunaire Environmental - - - - Gruenberg Oven - - - - Blue M - - - - Lindberg

Parts and service inquiries for equipment within each division should be directed to TPS by any of the following methods. Important! Please have the Model and Serial Numbers of your unit available when contacting us. Model No. Serial No.

Thermal Product Solutions PO Box 150 White Deer, PA 17887

Mailing Address

Thermal Product Solutions 2821 Old Route 15 New Columbia, PA 17856

Physical Address

Phone: Fax - Parts Dept. Fax - Service Dept. Fax - Main: E - Mail Address: Web site:

570 - 538 - 7200 570 - 538 - 7385 570 - 538 - 7391 570 - 538 - 7380 [email protected] www.thermalproductsolutions.com

Parts Replacement Your equipment has been designed and manufactured to provide years of reliable service. In the event a component should fail, it is recommended that only OEM approved parts be used as replacements. Please contact the Parts Department for component replacement, or repair.

Vacuum Chamber - Models 8S thru 64S

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TENNEY ENVIRONMENTAL

2.0

SAFETY WARNINGS & SYMBOLS

You must follow these and all Warning statements listed throughout the manual! - - - There are additional Warnings posted in the Installation Instructions for specific equipment and features.

1.

Read this entire Operation Manual, as well as the vendor manuals and cut-sheets provided before operating this equipment! Failure to adhere to any Safety Warning, or failure to follow the proper operating procedures listed throughout any of the information provided, could cause damage to your equipment, personal injury, or death. Obey all "CAUTION", "DANGER", and "WARNING" signs / labels mounted on the equipment. Do not remove any of these signs / labels. Do not use this equipment in any manner not specified in this manual. Improper use may impair the safety features employed and will void your warranty. Operators and service personnel must be familiar with the location and function of all controls and the inherent dangers of the equipment before operating or maintaining it. Only qualified service personnel should ever be permitted to perform any service-related procedure on this equipment! Do not place the unit near combustible materials or hazardous fumes or vapors. Do not install unit in a corrosive environment. A corrosive environment may lead to poor performance and deterioration of unit. Make sure the chamber and any remote equipment provided are leveled when installed. The chamber

door may swing shut on personnel if unit is tilted.

2.

3.

4.

5.

6. 7.

8. 9.

A main power disconnect may not be provided with your unit. If not provided, we recommend that a fused disconnect switch on a separate branch circuit be installed as the power source in accordance with all National and Local Electrical Codes. If your unit is equipped with a power cord and plug, you must utilize a receptacle with the appropriate rating, which is on a branch circuit of its own. Do not position the chamber in a manner that would make it difficult to operate your main power disconnect switch. Your power supply line voltage may be too low or too high to properly and safely operate your equipment. Before making the power supply connection to your equipment, you must follow the specific directions stated under "Power Connection" in the Installation Instructions section. Failing to perform the directions stated may damage your equipment and void your warranty! Control panels, gauge boxes, the conditioning compartment, etc., contain exposed electrical connections. Keep panels in place properly when the unit is in operation. Disconnect and Lock-Out / Tag-Out all electrical power from the unit at its source before servicing or cleaning. Do not adjust any mechanical components or any electrical components except as directed in this manual. Do not adjust any pressure or vacuum relief valves. Any adjustment of these valves may cause extreme hazards!

10.

11.

12.

13.

14.

Vacuum Chamber - Models 8S thru 64S

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15.

When an oil-filled vacuum pump is employed, Material Safety Data Sheets (MSDS) for the vacuum pump oil will be supplied in the Supplemental Instructions Section. You must follow the specific directions on the 'MSDS' sheets should you come in contact with the oil. Do not modify any component on this unit. Use only original equipment manufactured (OEM) parts as replacement parts. Modifications to any component, or the use of a non-OEM replacement part could cause damage to your equipment, personal injury, or death.

Do not overload the floor of the chamber workspace or load the unit unevenly.

16.

17. 18.

Do not stand on the roof of the chamber. The roof is not designed to withstand additional weight.

INTERNATIONAL WARNING / SAFETY SYMBOL DEFINITIONS

Obey all "DANGER", "WARNING", and "CAUTION" labels shown in the manual and mounted on the equipment. Do not remove any labels mounted on the equipment.

"WARNING OF HAZARDOUS AREA"

"WARNING OF DANGEROUS ELECTRIC VOLTAGE"

"WARNING OF HOT SURFACE"

"EARTH (GROUND) PROTECTIVE CONDUCTOR TERMINAL"

Vacuum Chamber - Models 8S thru 64S

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TENNEY ENVIRONMENTAL

3.0

PRODUCT SPECIFICATIONS & OVERVIEW

Application: This manual applies to the following Tenney Vacuum Chambers, which are designed to provide a wide range of vacuum conditioning. Models 8S, 12S, 18S, 27S, and 64S The prefix number indicates chamber workspace capacity in cubic feet.

Vacuum System Specifications: Standard pressure conditions: Site level to 20.88 mm Hg (80,000 feet altitude) Optional pressure conditions: Site level to 8.28 mm Hg (100,000 feet), 1.10 mm Hg (150,000 feet), and 0.169 mm Hg (200,000 feet), with optional vacuum pumping equipment. Optional vacuum pumping equipment may also be used for faster pressure pulldown rates at intermediate pressure levels. Pressure may be controlled or uncontrolled.

For Model xS, Order No. (O/N) 4xxxx, the following custom specifications apply: Pressure Range: Site level to xxx mm Hg (xxx Torr)

Vacuum System Description: Standard S Series chambers employ a vacuum system that uses an oil-filled rotary vane type vacuum pump with an atmospheric vent system. Oil-less pumps may also be used in the rotary vane design, along with in a scroll type design. For the control of vacuum conditions, either a non-profiling controller or a profiling controller can be used. Non-profiling controllers with ramping capabilities include the Watlow Models 93, 96, 988, and 998. A Watlow 945 may be used as a single setpoint, non-profiling / non-ramping controller. Time / pressure profiling controllers with ramping capabilities include the Watlow Models 920, 922, 942, and F4, and the TPS VersaTenn V Touch Interface Control System (with HMI). An absolute pressure transducer is used by the controller to measure chamber pressure.

Vacuum Chamber - Models 8S thru 64S

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TENNEY ENVIRONMENTAL

VersaTenn V Controller: Pressure / vacuum conditions are controlled by the VersaTenn V Touch Interface Control System. The VersaTenn V (Micro Version) is a powerful 3 channel controller that employs a Pentium class processor, 8 MB Flash Disk On Chip storage, a USB Flash Disk port (replaces 3½" floppy), and RS-232 communications. The VT V incorporates a user-friendly color touchscreen interface with real-time graphic displays, Microsoft's Windows CE Operating System, and the latest software developments in environmental test chamber control to make programming and diagnostics simple. A near infinite number of programs and steps are possible. This new controller has taken environmental testing into the 21st century, incorporating communication capabilities for the modern "Connected Factory". The "Connected Factory" is the global enterprise where data is gathered from around the world via the Internet through the World-Wide-Web, from around the factory floor via Ethernet, and from around the test lab via the IEEE 488, RS-485, and RS-232 interfaces. With the optional VersaTenn V Webtouch RemoteTM Web Server software, true "Global Control" can be realized. Channel 3 controls pressure levels using a capacitance type absolute pressure transducer for pressure measurement. Pressure levels are controlled in absolute pressure units, i.e., Torr (mm Hg).

Pressurization System: (Optional) A Pressurization System may be provided as an option to simulate pressure / altitude conditions below the customer's site level. The typical range extends from site to minus 1500 feet below sea level (800 Torr). There are several methods of pressurizing a chamber. These methods are listed below with the typical pressure range for each. Customer's Compressed Air Supply: Typical range to minus 1500 feet. Compressor Motor: Range may extend below minus 1500 feet. Chamber Vacuum Pump: Range may extend below minus 1500 feet.

Options: Other options available with Tenney S series chambers include a GN2 purge system, a molecular sieve trap to prevent oil from backstreaming from an oil-filled type vacuum pump into the chamber, a mechanically refrigerated cold vapor trap to prevent condensable gases such as water vapor from entering an oil-filled type vacuum pump, a chart recorder, and data communications with the chamber controller.

As you can see, Tenney Vacuum Chambers are diversified tools designed to encompass a wide range of operating conditions and functions. If you come upon any questions as you continue on through the manual, please contact our Service Department.

Vacuum Chamber - Models 8S thru 64S

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TENNEY ENVIRONMENTAL

Operating Parameters and Requirements: This equipment is designed to operate safely when the following environmental conditions are met: Indoor use only. Within a temperature range of 5° C to 30° C (max). Maximum relative humidity 90%. The listed chamber specifications are based on operation at 24° C ambient temperature, altitude at sea level, and a 60 Hz power supply. Chamber operation utilizing a 50 Hz power supply may derate the listed performance specifications. Equipment damage, personal injury, or death may result if this equipment is operated or maintained by untrained personnel. Operators and service personnel must be familiar with the location and function of all controls and the inherent dangers of the equipment before operating or maintaining it. TPS shall not be liable for any damages, including incidental and/or consequential damages, regardless of the legal theory asserted, including negligence and/or strict liability. Observe all safety warnings and operating parameters listed in this manual, as well as all Caution, Danger, and Warning signs or labels mounted on the equipment to reduce the risk of equipment damage and personal injury.

Vacuum Chamber - Models 8S thru 64S

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TENNEY ENVIRONMENTAL

4.0

DRAWINGS, INFORMATION, and VENDOR INSTRUCTION LISTINGS

The following drawings are provided:

Electrical Schematic Vacuum Schematic General Layout

D800 D661 D001

The following vendor manuals and information are provided: Watlow 93, 96, 920, 922, 942, 945, 988, 998, or F4 Controller Manual, or VersaTenn V Controller Manual (Includes Data Communication Instructions) Vacuum Pump Manual Material Safety Data Sheet - - Vacuum Pump Oil (as provided) Absolute Pressure Transducer / Transmitter: MKS Test Report Altitude / Pressure Table

Optional Equipment ­ Vendor manuals will be supplied when the option is included. Watlow Data Communications Manual (with option - depending on controller used) Molecular Sieve Trap (with option) Cold Vapor Trap Manual Chart Recorder Manual Note: Various other vendor product information sheets are also provided, which contain important operation and maintenance instructions. Their inclusion is subject to vendor availability. (with option)

Vacuum Chamber - Models 8S thru 64S

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TENNEY ENVIRONMENTAL

5.0

INSTALLATION INSTRUCTIONS

Read this section completely before attempting to install, or operate the equipment.

5.1

Delivery and Uncrating of Unit

Inspect equipment and shipping crate immediately upon receipt. If any damage is apparent, you should discuss it with the trucking delivery person and contact the transportation company immediately. Make notes of any damage on the Bill Of Lading. Retain all shipping materials for inspection. Any claims for damage must start at the receiving point. Check packing slip carefully and make sure all materials have been received as indicated on the packing ticket. Unless otherwise noted, YOUR ORDER HAS BEEN SHIPPED COMPLETE. Warning! Chambers, remote control cabinets, and remote machinery skids should be handled and transported in an upright position, or as indicated on the shipping pallet. Damage to the equipment may be incurred if it is not handled properly.

5.2

Location and Installation of Unit

Your equipment has been fully operated, tested, and balanced in our plant prior to shipment, unless notified otherwise. Follow the installation requirements below. Do not place the unit near combustible materials or hazardous fumes or vapors. Ventilation: The unit should be installed in an area where there is good air ventilation, especially if an air-cooled condenser is used. Allow a minimum of 18 inches between any wall and chamber side, or to any equipment mounted to the chamber side. Do not locate unit in areas of wide ambient temperature variation such as near vents or outdoor entrances. Do not install unit in a corrosive environment. A corrosive environment may lead to poor performance and deterioration of unit. Do not position the unit in a manner that would make it difficult to operate your main power disconnect switch. Make sure the unit is leveled when set up. Sometimes control panels are removed to facilitate shipment. Replacement may involve repositioning panels on the equipment mechanically, and reconnection of numbered electrical wires to matching numbered terminal blocks.

Important! Do to the vibration incurred during shipping and handling, it is possible that mechanical connections could become loose. Check all connections to make sure they are secure.

Very Important! Upon completion of the initial installation of the chamber and upon completion of any maintenance procedure, make sure that all access panels that have been removed are reinstalled securely before operating the unit.

Vacuum Chamber - Models 8S thru 64S

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TENNEY ENVIRONMENTAL

5.3

Equipment Access & Features

Strato-flo Vent Valve

Control Cabinet

Vacuum Machinery Base

FRONT VIEW - - MODEL 27S ­ O/N 57680

Vacuum Chamber - Models 8S thru 64S

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TENNEY ENVIRONMENTAL

RS-232 Port Ethernet Port

Control Cabinet Manual Vent Valve

GN2 Purge System Inlet

Vacuum Pump

Vacuum Machinery Base

REAR VIEW - - MODEL 27S ­ O/N 57680

Vacuum Chamber - Models 8S thru 64S

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TENNEY ENVIRONMENTAL

5.4

GN2 Supply Connection (For Optional Equipment)

Your chamber will require a supply of gaseous nitrogen for the GN2 Purge System option. The supply may range up to 2 PSIG maximum. Make sure the connection is secure. The connection is type ¼" FPT. Make sure the connection is secure. A flowmeter with metering valve is provided. Reference the corresponding "Options" section in this manual, or your chamber specifications for more details.

Warning! Gaseous nitrogen displaces oxygen. Make sure the area surrounding the chamber is well ventilated to dilute the gas vented from the chamber vent port checkvalve.

Warning! Burn Hazard. Avoid contact with cryogenic materials. Serious burns from immediate frostbite will result. Insulated gloves, eye goggles, and protective clothing MUST be worn when working with or around these materials. Gloves should be loose fitting so they can be quickly discarded in case liquefied gas spills or sprays into them.

Manual Vent Valve

Note: GN2 flow will not be indicated unless there is a high backpressure. Do Not Adjust Metering Valve.

GN2 Supply Connection

GN2 PURGE SYSTEM

5.5

Compressed Air Supply Connection (For Pressurization Systems)

Note: This supply is only used for the optional Pressurization System using compressed air. The compressed air supply should be clean and dry, 80 PSI min., 100 PSI max.

Vacuum Chamber - Models 8S thru 64S

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TENNEY ENVIRONMENTAL

5.6

Electrical Specifications ­ Chamber O/N 57680 (Std. Chambers ­ See Electrical Dwg.) Your main power fused disconnect switch should be rated 20 Amps.

230 VAC, 10 A, 1 PH, 60 HZ

5.7

Power Connection

Warning! Before making the power supply connection to your unit, you must perform the following procedure: 1. Verify the power supply voltage rating established for your chamber (listed above). The voltage rating is also found on the serial tag on the side of the oven. Note the rated value here: Measure and record the intended voltage source. Note the measured value here: Reference the "Line Voltage Min/Max Tables" below. Verify that the power supply voltage source you measured and recorded is within the minimum and maximum allowable operating voltages for your chamber voltage rating. If it is not within this operating range, do not make the power connection! Otherwise, erratic operation and damage may occur to your equipment, which may void your warranty. If you have any questions, please call the TPS Service Department.

2. 3.

Important! One of the most common causes of equipment malfunction is low line voltage as the power source to the unit. Ordinarily in this condition, the heat output would be reduced and the system's motors would operate erratically, eventually overheat, and shut down. You must be certain that your equipment is connected to a circuit with an adequate voltage and current source. An oversupply voltage would also cause erratic operation and eventual shutdown, or damage to your equipment.

- 60 HERTZ SUPPLIES LINE VOLTAGE MIN. / MAX. TABLE Chamber Voltage Rating 208 230 460 480 Minimum Voltage 188 207 414 432 Maximum Voltage 228 253 506 528

- 50 HERTZ SUPPLIES LINE VOLTAGE MIN. / MAX. TABLE Chamber Voltage Rating 200 220 380 400 415 Minimum Voltage 180 198 342 360 374 Maximum Voltage 220 242 418 440 456

60 Hz Supply

Operation outside these limits can result in damage to chamber equipment.

50 Hz Supply

Operation outside these limits can result in damage to chamber equipment.

Making the Power Supply Connection to the Chamber: A main power disconnect switch is normally not provided with your chamber. We recommend that a fused disconnect switch on a separate branch circuit be installed as the power source to your chamber, in accordance with all National and Local Electrical Codes. Reference your Electrical, or Power Schematic for all electrical requirements.

Vacuum Chamber - Models 8S thru 64S

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TENNEY ENVIRONMENTAL

A power supply cable entry hole may need to be punched into the main control cabinet. Connect the incoming power supply to the main terminal blocks in the cabinet. The block connection is labeled for the correct service.

Warning! Make sure that all electrical wiring is properly installed in accordance with all National and Local Electric Codes. Make sure all connections are secure.

Warning! High Accessible Current ­ An Earth connection is essential before connecting the power supply. Make sure equipment is properly grounded in accordance with all codes.

Power Connection

1SM & 3SM Boards Pressure Transmitter

CONTROL CABINET ­ O/N 57680

5.8

Application of Power Before energizing any equipment, make a visual inspection for loose components, electrical connections, fittings, etc. Shut all operating switches to the "OFF" position before energizing. Have trained personnel start and check out the equipment before its first cycle. Motor Rotation Check: Units with three phase motors must be checked to insure proper motor rotation. A red arrow is located on the motor housing to show proper rotation. If it is opposite, shut down the oven and disconnect the main power supply source. Perform Lock-Out / Tag-Out Procedures established by your company. Reverse two of the line feeds to obtain proper operation. Failure to check motor rotation may result in DAMAGE TO THE EQUIPMENT due to opposite airflow, or no airflow.

Vacuum Chamber - Models 8S thru 64S

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TENNEY ENVIRONMENTAL

6.0

VACUUM SYSTEM

Warning! Do not adjust any pressure or vacuum relief valves. Any adjustment of these valves may cause extreme hazards!

System Description: Tenney S series vacuum chambers employ a simple and efficient vacuum system. Standard operating pressure conditions for all chambers ranges from site level to 20.88 mm Hg (80,000 feet). For high vacuum conditions, optional vacuum pumping equipment would permit pressure levels of 8.28 mm Hg (100,000 feet), 1.10 mm Hg (150,000 feet), and 0.169 mm Hg (200,000 feet) to be reached. Optional equipment can also be utilized for faster pressure pulldown rates at intermediate pressure levels.

Vacuum Pump Description: At the heart of the system is either a single stage, or two-stage oil-sealed rotary vane vacuum pump. Multiple vanes on the eccentrically mounted rotor divide the pump chamber into several compartments. As the rotor rotates, gas is sucked in from the intake port, enters the pump chamber, and becomes trapped between the rotor vanes and the body of the pump. As the rotor rotates further, the gas is compressed with the reduction in volume of the rotating compartment. Once the compartment reaches the discharge port and the compressed gas pressure slightly exceeds atmospheric, the exhaust valve opens and the gas is expelled. Oil-sealed pumps utilize oil for sealing, lubrication, and cooling purposes. Various oil filters are used within the exhaust and intake ports. Oil-less vacuum pumps may also be used. For complete operating instructions on the vacuum pump, refer to the vacuum pump user's manual in the Supplemental Instructions Section. Material Safety Data Sheets MSDS may be provided for the oil used in an oil-sealed type pump.

Vacuum Line to Chamber

To Handvalve Vacuum Valve 1VSOL Chamber Vent Valve 2VSOL

Vacuum Pump

Pump Vent Valve 9VSOL

Vacuum Pump Exhaust Line

VACUUM SYSTEM ­ MODEL 27S, O/N 57680 Vacuum Chamber - Models 8S thru 64S

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TENNEY ENVIRONMENTAL

Strato-flo Vent Valve

Chamber Light

Vacuum Port

Pressure Transmitter Sense Port

Customer Port

GN2 Inlet Port

CHAMBER WORKSPACE ­ O/N 57680

VENT HAND VALVE

VACUUM PUMP ­ O/N 57680 (Leybold Sogevac SV10) Vacuum Chamber - Models 8S thru 64S

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TENNEY ENVIRONMENTAL

Pressure Transducer: Chamber pressure is measured with a variable capacitance type absolute pressure transducer, which is normally mounted in the main control cabinet. A 1/4" diameter pressure-sense line runs from the chamber to the transducer's pressure inlet port. A sensor with a metal diaphragm, and all signal conditioning electronics are contained within the transducer body. The transducer is powered by an external power supply. Changing chamber pressure causes a deflection of the diaphragm and an imbalance of the sensor's electrode capacitance. This imbalance is converted to a DC voltage. The resultant signal is made linear and amplified by the signal conditioner to produce a precise output signal scaled to the range of the transducer. The 0-5 volt DC output signal is sent to the Vacuum / Altitude Controller and the chart recorder (when provided). Transducers are designed with a defined full scale range. Standard chambers employ a transducer with Range #1 specified below. When operating with controlled pressures at the extreme lower end of the scale, a second transducer with Range #2 will also be provided. Note: Range #2 is an optional feature.

Range #1: 0 - 1000 Torr: Transducer TMR1: For controlled pressures from 760 Torr (sea level) to 8.28 Torr (100,000 feet).

TMR1 & TMR2 TRANSDUCERS

Range #2: 0 - 10 Torr (Optional):

Transducer TMR2: For controlled pressures below 8.28 Torr (above 100,000 feet). When two transducers are employed, each of the transducer's output signal lines must be switched at the appropriate pressure / altitude level. Either a manual switch, or an event output from the controller will be provided. The logic circuitry of the VersaTenn V Controller automatically switches the internal input sense lines between the Range 1 and Range 2 transducers at the appropriate pressure level.

Vacuum Chamber - Models 8S thru 64S

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TENNEY ENVIRONMENTAL

Cold Vapor Trap (Optional): A mechanically-refrigerated cold vapor trap is installed in the vacuum system suction line. This device protects the vacuum pump by preventing condensable gases such as water vapor from entering the vacuum pump oil. If water vapor entered into the pump oil it would cause the oil to break down. This would cause decreased lubrication and can eventually cause failure of the pump. The vapor trap may be energized by either a dedicated switch on the main control panel, or whenever the vacuum system / oven is turned on. The vapor trap stainless steel chamber is cooled by direct expansion of refrigerant in refrigeration lines that are bonded directly to the outside of the chamber walls. Vapors enter the chamber through a port in the vacuum top plate. While the vapors circulate in the chamber, they strike the sides and are frozen-out on the low temperature of the chamber wall. The system will trap all condensable vapors that have freezing points higher than the operating temperature of the vapor trap (-50° C or -90° C). Non-condensable vapors and gases are evacuated through a second port in the lid by the vacuum pump.

Cold Vapor Trap

COLD VAPOR TRAP

Molecular Sieve Trap (Optional): A molecular sieve trap may be included in the suction line if an oil lubricated vacuum pump is employed. This is used to prevent oil from backstreaming from the vacuum pump into the vacuum chamber. The trap consists of a vacuum tight stainless steel housing containing a charge (alumina or synthetic zeolite), which has a high affinity for hydrocarbons and water vapor. A trap heater is incorporated into the assembly, which may be energized by either a dedicated switch, or whenever the vacuum system / oven is turned on. The trap sieve will need to be regenerated periodically, depending on system use. Please refer to the vendor maintenance instructions, which is located in the Supplemental Instructions Section.

Vacuum Chamber - Models 8S thru 64S

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TENNEY ENVIRONMENTAL

7.0

7.1

VACUUM CONTROL ­ WATLOW CONTROLLERS

Controller Types

Either a non-profiling type or a profiling type controller may be used for the control of pressure. These controllers are described below. Data communication is available as an option with all controllers except for the Watlow 93. Refer to the Data Communications section for more information. Non-profiling vacuum controllers include the Watlow Models 93, 96, 988, and 998. These controllers feature ramping control, auto / manual control, and time proportioned output(s). The Watlow 945 is a non-profiling and non-ramping controller, featuring single setpoint control, auto / manual control, and time proportioned output(s). Time / pressure profiling vacuum controllers provide enhanced pressure control of your vacuum chamber. These types include Watlow Models 920, 922, 942, and the F4. The Watlow 920 and 922 incorporate up to 99 programmable steps in ten files. The Watlow 942 incorporates up to 24 programmable steps in one file. The F4 has a four line high definition LCD interface display, and can accommodate up to 256 steps in 40 profiles. Ramping control, auto / manual control, and time proportioned output(s) are features also provided with these controllers.

Controller Configuration / Equipment Information: The pre-programmed Vacuum / Altitude Controller configuration is provided in the Test Report, which is located in the Supplemental Instructions Section. This is mainly provided for your reference. Not all of the parameters shown apply to your chamber. Changes to some of the set-up parameters may drastically affect your chamber performance and void your warranty. Contact Tenney Service before attempting any changes. For complete operating instructions on the Vacuum / Altitude Controller employed with your chamber, please refer to the controller's user manual. An Altitude / Pressure Table is also provided for your reference. These items are located in the Supplemental Instructions Section.

7.2

Vacuum Operation

The vacuum system is energized by turning the Vacuum switch ON. This action will immediately start the vacuum pump, enable the controller Vacuum output, and energize and close the N.O. Pump Vent solenoid valve 9VSOL (when provided). Important! During vacuum conditioning, the Vent switch should normally be turned OFF. Otherwise, if turned ON and an overshoot in vacuum level occurs, the controller Vent output would close. This may cause a substantial undershoot and prolong the time to setpoint. The desired pressure level setpoint is entered into the controller in Torr units (mm Hg). When the controller detects that a lower pressure level is required, output 1C-01 will close to energize and open the Vacuum solenoid valve 1VSOL. Depressurization of the chamber occurs as the pump suctions air from the chamber through 1VSOL. The Vacuum ON light will illuminate. Ultimate / Uncontrolled Operation (Optional): To achieve ultimate uncontrolled vacuum / altitude conditions which the vacuum system is capable of delivering, an event output from the controller will be provided. This event must be turned ON to lock-on the Vacuum solenoid valve 1VSOL. Please reference your controller's configuration sheet for the event output number.

Vacuum Chamber - Models 8S thru 64S

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TENNEY ENVIRONMENTAL

7.3

Vent Operation

Standard S series chambers utilize an atmospheric air vent system. To vent the chamber, leave the Vacuum switch turned ON and raise the controller setpoint to the desired level. The vacuum pump will continue to run, however, the Vacuum output will close to stop chamber suction. This will help prevent any oil (with an oil-filled pump) from backstreaming into the suction line from the pump. Important! When switching to the vent operation, the Vacuum switch should remain ON.

Turn the Vent switch ON to enable the Vent output 1C-02. This output will close to energize and open the Vent solenoid valve 2VSOL to pressurize the chamber with atmospheric air. The Vent ON light will illuminate. A hand valve is normally provided in the vent line to set maximum airflow. Chamber pressure will now rise as indicated on the controller display. As an option, a HEPA filter may be provided in the chamber vent line filter assembly.

Vacuum Chamber - Models 8S thru 64S

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TENNEY ENVIRONMENTAL

8.0

8.1

VACUUM CONTROL ­ VERSATENN V CONTROLLER

Controller Features

The VersaTenn V Touch Interface Control System (Micro Version) is a 3 channel proprietary instrument, developed specifically for environmental test chambers. This latest design in the VersaTenn Controller series employs features that will maximize the capabilities of your test chamber. It is precisely designed to take complete command of the chamber's conditioning systems with total programming of pressure versus time. The main features of the VersaTenn V are listed below. Note: Not all features are used. For O/N xxxxx an RTD is located in the control cabinet and connected to Channel 1. You will see the resultant temperature displayed. This is only supplied to satisfy the control logic. 3 Channel - - Channel 1 = Temp. (N/A), Channel 2 = Humidity (N/A), Channel 3 = Pressure Near infinite number of programs and steps Auto / Manual Control 3 Process Inputs: Chan. 1 ­ N/A, Chan. 2 ­ N/A, Chan. 3 Capacitance Type Absolute Pressure Transducer 10 Temperature Control Outputs - PID / On-Off 5 Humidity Control Outputs - PID / On-Off 2 Vacuum / Vent Outputs 6 Event Outputs - Optional Guaranteed Soak Alarm Output for Each Channel 2 Analog Retransmit Outputs: Actual, Setpoint, Heat PID, or Cool PID for each channel 320 x 240 color LCD with touch screen Windows graphical user interface Utilizes Microsoft's Advanced Windows CE Operating System Pentium Class Processor 8MB Flash Disk On Chip Storage Optional Webtouch RemoteTM Web Server software for Internet monitoring / controlling Built-in Help System, Set-up Wizards, and International Language Support Real-time color graph displays Networking with 10/100 Base T Ethernet Built-in TCP/IP networking Built-in peripheral support expansion using the Universal Serial Bus (USB), providing a powerful and flexible interface. Utilizing a USB Flash Disk, you can download files or data log through the USB port. RS - 232 Communications is standard RS - 485, and IEEE - 488 Communications are optional Multi-channel 16 bit A/D converter for process data indicating temp., hum., voltage, power, and pressure 8 bit machine diagnostics interface Separate I/O controller board (Olympic) for machine interface, machine diagnostics, and IEEE-488 USB Port (Replaces 3½" Floppy Drive) Program and test data storage and retrieval with floppy drive, local flash disk, and with using the VT V's built-in communication capabilities. UUT (Unit Under Test) temperature data logging & display with 8 Inputs (std.), expandable to 64 Inputs

Vacuum Chamber - Models 8S thru 64S

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TENNEY ENVIRONMENTAL

Data Communications: Standard data communications with the VT V is Type RS232. A VTV Communication Command Set chart along with various other related communication information are provided in the VTV manual. As a reference, different data communication types are briefly described below. RS232C / RS423A: Both interfaces are compatible and use 3 wires: a single transmit wire; a single receive wire; and a common line. The maximum wire length is 50 feet. Only a single chamber may be connected to your computer. Data signals are measured as plus and minus 12 Volts to common with RS232C, and plus and minus 5 Volts to common with RS423A. RS422A: This interface uses 5 wires: a transmit pair; a receive pair; and a common line. Up to ten chambers may be connected to your computer on a multi-drop network up to 4,000 feet long. Data signals in each pair are measured as a plus or minus 5 Volt differential. EIA-485: This interface uses only 2 wires. Both wires are used for transmitting and receiving data, and therefore, only one device may talk at a time. Up to 10 chambers may be connected to your computer on a multi-drop network up to 4,000 feet long. Data signals are measured as a plus or minus 5 Volt differential. An EIA-485 card must be installed for signal conversion. IEEE-488: This is a parallel multi-drop interface with several control and data lines. Each device connected must be set to a unique address. Data from other test devices may also be collected. An IEEE-488 to serial converter card must be installed. Maximum cable length is approx. 33 ft.

Controller Configuration: The pre-programmed controller configuration for your chamber is documented in the Test Report, which is located in the Supplemental Instructions Section. Refer to the controller manual for programming details. Important! The configuration set-up is mainly provided for your reference. Not all of the parameters shown apply to your chamber. Changes to some of the set-up parameters may drastically affect your chamber performance and void your warranty. Contact the TPS Service Dept. before attempting any changes.

Vacuum Chamber - Models 8S thru 64S

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TENNEY ENVIRONMENTAL

8.2

`Micro' Version - VersaTenn V Layout

The standard version of the VersaTenn V Micro Controller has an Olympic Processor Board mounted on the back side of the OIT, and can be mounted in most any control cabinet or panel. A USB Flash Disk Port (replaces 3½" floppy drive), a controller Reset button, and several LED function indicators are located on the OIT faceplate. The Micro replaces the full size original version of the VersaTenn V, which has an interface panel mounted on the side of the chamber door or control panel, and the Compact version that has a 3.5" floppy drive.

Comm LED: Flashes during activity with RS232 and GPIB Communications Link LED: Illuminates when connected to Ethernet Hub TX / TR LED: Flashes during activity with Ethernet Communications

Power On LED

Reset Button USB Port for Memory Stick

VERSATENN V MICRO CONTROLLER

Ethernet Port

Olympic Processor Board

VT5 MICRO CONTROLLER - REAR VIEW

Vacuum Chamber - Models 8S thru 64S

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TENNEY ENVIRONMENTAL

8.3

VersaTenn V Control Functions

Pressure control functions with Channel 3 are relayed from the Olympic Machine Interface Board to solid state outputs on remote switching module 1SM. These are designated 1SM-01, 1SM-11, and 1SM-12. Event outputs (user entered) that can alter the standard VersaTenn logic for special or optional applications, are relayed from the Olympic Machine Interface Board to solid state outputs on remote switching module 3SM. These are designated 3SM-01 thru 3SM-06. Event outputs that operate an optional feature are normally described in the Options section. Pressure levels are programmed into the VersaTenn Controller in absolute pressure units, 0 - 1000 millimeters of Mercury, mm Hg (Torr).

VERSATENN V MAIN SCREEN ­ 3 CHANNEL

The following are the functions of the various outputs used. Note: All control outputs are OFF if the VersaTenn is OFF. Not all outputs are used.

- VACUUM SYSTEM 1SM-01 - - This output closes immediately when the System ON button is pressed to turn on the vacuum system. The vacuum pump motor will start through contactor 2M. Auxiliary 2M contacts will close to energize and close the N.O. Pump Vent solenoid valve 9VSOL. 2M contacts will also enable the vacuum / vent control outputs.

Important Note: If the optional Pressurization System is employed, the operation of Output 1SM-11 will be different from what is described below. Refer to the implied section for details.

1SM-11 - - This is a time proportioned output, which energizes and opens the Chamber Vent solenoid valve 2VSOL. 2VSOL permits ambient airflow into the chamber for a controlled descent. 1SM-12 - - This is a time proportioned output, which energizes and opens the Pump Suction solenoid valve 1VSOL. 1VSOL permits chamber air to be suctioned by the Vacuum Pump to attain a set pressure.

Vacuum Chamber - Models 8S thru 64S

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TENNEY ENVIRONMENTAL

- EVENT OUTPUTS - For Special Applications - O/N 57680 ONLY

3SM-01 - - Event Output No. 1: This event must be turned ON to activate the GN2 Purge System. This system can only be activated at site level or above, as determined by the Low Pressure Alarm Output of the VT5. 3SM-02 - - Event Output No. 2: This event must be turned ON to ................... 3SM-03 - - Event Output No. 3: This output must be turned ON to .................. 3SM-04 - - Event Output No. 4: This output must be turned ON to .................. 3SM-05 - - Event Output No. 5: This output must be turned ON to .................. 3SM-06 - - Event Output No. 6: This output must be turned ON to ..................

- ALARM OUTPUT - For Special Application - O/N 57680 ONLY The Low Alarm output of the VT5 is used to enable Event Output 1, which energizes the GN2 Purge System. This output will only energize and close when the chamber is at site level (750 Torr) or above. The output will deenergize and open when the vacuum system starts (pressure drops) to prevent the GN2 Purge System from being activated.

Vacuum Chamber - Models 8S thru 64S

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TENNEY ENVIRONMENTAL

9.0

PRESSURIZATION SYSTEM (Optional)

A pressurization system is used to simulate altitude conditions below site level. Depending on the type of system used, the range may extend from site level to approximately minus 1500 feet below sea level (800 Torr). The pressurization systems available are described below. Important: Before pressurizing the chamber, pull a vacuum on the chamber to +40,000 feet (140 Torr) altitude, and then tighten all door handwheels. This will prevent door gasket leakage during pressurization. Note: If the chamber is designed for a lesser altitude, pull a vacuum to the designed pressure limit. Do not adjust any pressure or vacuum relief valves. Any adjustment of these valves may cause extreme hazards!

Pressurization with Vacuum Pump: The vacuum pump can also be used to pressurize a chamber with atmospheric air using a special valve configuration and reverse control logic setup. This is achieved by suctioning atmospheric air in through the pump's vent port and by pumping it into the chamber through the pump's discharge port. Pressure Relief Valves PRV1 and PRV2 are installed in the chamber and in the pressure line. The Pressure Switch must be closed to enable the system. In the Vacuum control mode, the vacuum pump operates in the normal manner as it draws chamber air out through the Vacuum Control solenoid valve 1VSOL. In the Pressure control mode, 1VSOL closes and the pump draws in atmospheric air through the Vacuum Relief Valve VRV. The air is pumped through the Pressure Control solenoid valve 2PSOL and into the chamber. The Chamber Vent switch must be closed to vent the chamber.

Pressurization with Customer's Compressed Air Supply: A compressed air supply can be used to pressurize the chamber and simulate altitude conditions from site level to minus 1500 feet below sea level (800 Torr). The supply should be clean and dry, and rated 80 PSI min., 100 PSI max. The supply is initially regulated down to 10 PSI by Pressure Valve PV2, and then to 3 PSI by Pressure Valve PV1 before it enters the chamber. Pressure Relief Valves PRV1 and PRV2 are also provided. The Pressure Switch must be closed to enable the system.

Pressurization with Compressor Motor: A compressor motor can be used to pressurize the chamber and simulate altitude conditions from site level to minus 1500 feet below sea level (800 Torr). The motor is installed in the machinery section. Pressure relief valves set at 5 PSIG are installed in both the pressure line and in the chamber. PRV2 is in the pressure line before the pressure level regulating solenoid valve 1PSOL. PRV1 is installed in the chamber. In order to activate the system, either a Pressure Switch must be closed, or an Event Output from the vacuum controller must be turned ON. This action will turn off the vacuum pump. (Note: If a separate Vacuum Switch is supplied, turn it Off. The pressurization system and vacuum system circuits are electrically interlocked so that only one can be energized at a time.) A minus pressure / altitude level is controlled with the time proportioned Vent Output 1C-02 of the main controller. 1C-02 will energize and open the Pressure solenoid valve 1PSOL to permit the compressor to pressurize the chamber. When a lower pressure setpoint is entered while still in the pressure mode, the VAC Output 1C-01 of the main controller will energize and open the Pressure-Vent solenoid valve 3VSOL and the Vacuum-Vent Valve 2VSOL. (Note: In the pressurization mode, the controller outputs work in reverse-logic.)

Vacuum Chamber - Models 8S thru 64S

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TENNEY ENVIRONMENTAL

10.0

GN2 PURGE AIR SYSTEM (Optional)

Overview: S series vacuum chambers may employ a GN2 Purge System to purge chamber air before beginning chamber operation. This feature can only be activated when the chamber is at site level or above. The GN2 supply should rated 2 PSIG maximum. A Strato-flo vent valve is installed at the top of the chamber to prevent an overpressure condition. The valve spring has been removed so that very little pressure is necessary to open the valve.

Operation with Watlow Controllers: Important: When switching to the GN2 purge operation, the Vacuum switch should remain ON. First raise the controller setpoint to site level. The vacuum pump will continue to run, however, the Vacuum output will close to stop chamber suction. This will prevent any oil (with an oil-filled pump) from backstreaming into the suction line from the pump. This system is activated when the GN2 Purge switch is closed. The GN2 Purge solenoid valve GNSOL will energize and open to permit the flow of nitrogen into the chamber. The Purge ON light will illuminate. Warning! Gaseous nitrogen displaces oxygen. Make sure the area surrounding the chamber is well ventilated to dilute the gas vented from the chamber vent port checkvalve!

Operation with VersaTenn V Controller: The GN2 Purge System can only be activated when chamber pressure is at site condition (750 Torr) or above. This is determined by the Low Alarm Output of the VT5, which will energize and close at 750 Torr and above to enable the system. To energize the system, you must turn Event Output No. 1 of the VT5 Controller ON. Event No. 1 will energize and open the GN2 Purge solenoid valve to permit the flow of nitrogen into the chamber. The Low Alarm output will prevent the GN2 Purge System from being activated once the Vacuum System is turned on and pressure falls below 750 Torr. This output will deenergize and open to disable the Event output.

GN2 PURGE SYSTEM

Vacuum Chamber - Models 8S thru 64S

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TENNEY ENVIRONMENTAL

11.0

DATA COMMUNICATIONS ­ WATLOW CONTROLLERS (Optional)

Data Communications: As an option, your chamber may include data communications with the main controller's serial port. When employed, either a Data Communications manual or a Computer Interface manual will be included in the Supplemental Instructions Section. As a reference, the available data types are listed and briefly described below. Please contact a Tenney Sales Engineer for more information. RS232C / RS423A: Both interfaces are compatible and use 3 wires: a single transmit wire; a single receive wire; and a common line. The maximum wire length is 50 feet. Only a single chamber may be connected to your computer. Data signals are measured as plus and minus 12 volts to common with RS232C, and plus and minus 5 volts to common with RS423A. RS422A: This interface uses 5 wires: a transmit pair; a receive pair; and a common line. Up to ten chambers may be connected to your computer on a multi-drop network up to 4,000 feet long. Data signals in each pair are measured as a plus or minus 5 volt differential. EIA-485: This interface uses only 2 wires. Both wires are used for transmitting and receiving data, and therefore, only one device may talk at a time. Up to 10 chambers may be connected to your computer on a multi-drop network up to 4,000 feet long. Data signals are measured as a plus or minus 5 volt differential. An EIA-485 card must be installed for signal conversion. IEEE-488: This is a parallel multi-drop interface with several control and data lines. Each device connected must be set to a unique address. Data from other test devices may also be collected. An IEEE-488 to serial converter card is installed. Max. cable length is approx. 33 ft.

Vacuum Chamber - Models 8S thru 64S

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TENNEY ENVIRONMENTAL

12.0

LinkTenn32 SOFTWARE ­ with VersaTenn V Controller (Optional)

LinkTenn32 is a Microsoft Visual Basic Software application designed for the Microsoft WindowsTM family of PC Operating Systems. LinkTenn32 utilizes a Multi-Document Interface (MDI) familiar to WindowsTM software applications so more than one Environmental Chamber Window can be used at a time. LinkTenn32 provides centralized remote monitoring and control of multiple process controllers simultaneously. LinkTenn32 supports the following controllers: TPS - VersaTenn III, IV, and V, Blue M Pro550 / 750, Watlow 942 & F4, and Partlow MIC 1462 Controllers . The major features provided include: Interactive remote control and monitoring. Go to website: www.tidaleng.com for Alarm reporting and notification via Email or Fax. more information on LinkTenn32 Software. User-friendly profile program editor. Logging, printing and graphing of process data. Exporting of logging history data via an ASCII comma separated values (CSV) file for easy import into Microsoft Excel or any analysis package that accepts comma separated values (CSV) file format.

The minimum hardware requirements for LinkTenn32 are as follows: One of these Microsoft WindowsTM PC Operating Systems: Windows 95, 98, 98 Special Edition, NT 4.0 Service Pack 6a, 2000 Service Pack 2 A Pentium Processor 233 MHz or better 128 MB Ram plus 32 MB for each simultaneous chamber session 40 MB hard disk space One serial port One National Instruments GPIB IEEE Interface (Optional) One 10/100 Ethernet card using TCP/IP (Optional) Printer (Optional) Fax Modem (Optional)

Example Screens:

LinkTenn32 Sample Graph Screen - 2 Channel

LinkTenn32 - 2 Channel VersaTenn III Screen

Vacuum Chamber - Models 8S thru 64S

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TENNEY ENVIRONMENTAL

13.0

CHART RECORDER

(Optional)

As an option, your chamber may be provided with either a circular, or strip type chart recorder to record pressure versus time. The measured values may also be digitally displayed on the recorder. Channel 1 (or Pen 1) records pressure utilizing the 0-5 volt DC output signal from the pressure transducer. The recorder configuration is documented in the Test Report, which is located in the Supplemental Instructions Section. Reference the recorder's user manual for a detailed operation of the unit.

Note: Other models may be provided.

HONEYWELL DR4500 TRULINE RECORDER

Note: The DR4500 Truline recorder shown above draws its own chart (in real time) as it plots temperature / humidity / pressure (as applicable) for each channel. Up to four channels may be employed.

Vacuum Chamber - Models 8S thru 64S

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TENNEY ENVIRONMENTAL

14.0

SEQUENCE of OPERATION ­ with WATLOW CONTROLLER

Make sure the Installation Instructions have been properly followed before operating the chamber. All switches should be in the OFF position before starting the sequence below. Make sure you have read (and understand) this entire manual before beginning operation.

Important!

Important!

Note: Pressure levels are programmed into the controller in absolute pressure units, 0 - 1000 millimeters of Mercury, mm Hg (Torr).

1. 2. 3.

Turn on the power source to the chamber. Plug in the chamber power supply cord, when provided. Load product and close the chamber door securely. Close the Vacuum switch to enable the Vacuum System. The vacuum pump will immediately start and the control circuitry of the Vacuum / Altitude Controller 1C will be enabled. Make sure the Vent switch is turned OFF.

4.

Enter the desired pressure setpoint into the controller. This should be entered as absolute pressure in Torr (millimeters of mercury, mm Hg). Reference the Altitude / Pressure Table for altitude and pressure conversions. When the Vacuum output is active, the Vacuum ON light will illuminate. Optional: When operating with controlled pressures below 8.28 Torr (above 100,000 feet), and a second transducer TMR2 is provided (full scale range = 0 to 10 Torr), turn Event No. 1 ON in the Vacuum / Altitude Controller. A manual switch may be used in place of the event output. Optional: To achieve ultimate, uncontrolled vacuum / altitude conditions that the vacuum system is capable of delivering, an event output from the controller may be provided. This event must be turned ON to lock-on the Vacuum solenoid valve 1VSOL. Please reference your controller's configuration sheet for the event output number. Remember to turn this event OFF when done.

5.

To vent the chamber, leave the Vacuum switch turned ON and raise the controller setpoint to the desired level. Close the Vent switch to enable the Vent control circuitry. When the Vent output is active, the Vent ON light will illuminate. For chambers that include the Pressurization System option, or any other option, please refer to the appropriate "Optional" manual section for a detailed operational description.

6.

Important Note! For complete programming and/or operating instructions on any of the controllers, electrical / mechanical components, or optional equipment, you must refer to their operating manuals included with your Tenney Environmental manual.

Vacuum Chamber - Models 8S thru 64S

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TENNEY ENVIRONMENTAL

15.0

SEQUENCE OF OPERATION ­ with VERSATENN V CONTROLLER

Make sure the Installation Instructions have been properly followed before operating the chamber. All switches should be in the OFF position before starting the sequence below. Make sure you have read (and understand) this entire manual before beginning operation.

Important!

Important!

Note: Pressure levels are programmed into the Channel 3 of the VersaTenn Controller in absolute pressure units, 0 - 1000 millimeters of Mercury, mm Hg (Torr).

1.

Turn on the power source to the chamber. Plug in the chamber power supply cord, when provided. The VersaTenn V will go through a boot-up diagnostics routine lasting about one minute. The Main screen will appear with a successful boot-up. Any errors encountered will be displayed. An alarm definitions table is located in Section 7 of the VersaTenn V Controller Manual.

2. 3.

Load product and close the chamber door securely. For Manual Operation, press the MAIN screen navigation key and enter your manual pressure setpoint. This should be entered as absolute pressure in Torr (millimeters of mercury, mm Hg). Reference the Altitude / Pressure Table for altitude and pressure conversions. Make sure any chamber function enabled / energized by an Event Output has the Event turned ON.

4.

To enter a program, press the PROGRAM screen navigation key. Press the Add Step button on the Program screen and follow the directions of the Add Step Wizard to complete your program entry. When completed, save the new file. Make sure Event Outputs supplied are appropriately turned ON. Make sure any chamber function enabled / energized by an Event Output has the Event turned ON.

5.

To open an existing file from the Storage Card (Disk-on-Chip), or from a USB Flash Disk, press the Program Screen Navigation key. Press the Open File button on the Program screen and select the file you wish to run. For chambers that include other options, please refer to the appropriate "Optional" manual sections for a detailed operation description. To start the chamber in the Manual Mode, go to the Main screen and press the On/Off button at the top of the screen. The LED above this button should turn green, and "Steady State" will appear at the bottom of the screen. You can also press the ON key to the right of the screen. To start the chamber in the Program Mode, press the RUN screen navigation key. If you just finished creating a new program, the program may automatically appear in the Run screen. Otherwise, press the Open File button and select the file you wish to run. Press the Run, or Run From button as desired.

6.

7.

8.

Important Note!

All VersaTenn Control Outputs are OFF if the VersaTenn is OFF.

Important Note! For complete programming and/or operating instructions on any of the controllers, electrical / mechanical components, or optional equipment, you must refer to their operating manuals included with your manual.

Vacuum Chamber - Models 8S thru 64S

Page 34

TENNEY ENVIRONMENTAL

CONTROL PANEL ­ O/N 57680

Vacuum Chamber - Models 8S thru 64S

Page 35

TENNEY ENVIRONMENTAL

16.0

PREVENTATIVE MAINTENANCE

Only qualified service personnel should ever be permitted to perform any service related procedure on this chamber!

Frequency of preventive maintenance procedures depends upon how the unit is used and upon other circumstances. Because of this, a hard and fast schedule of maintenance operations is difficult to present. Indeed, an inflexible schedule might be suitable for one user, but completely inadequate for another. Therefore, we have provided periodic figures when to perform maintenance procedures, based on the average chamber use. We suggest that you maintain a preventive maintenance log. In this log you will record operating notes, pressures, temperatures, and electric readings. The log is valuable because it will help maintenance and service people by documenting long term trends and by showing parameter levels when the chamber is operating properly. A sample Preventative Maintenance Schedule / Log is provided at the end of this section. Since the refrigeration system is sealed and the instruments are solid state, little maintenance is required on the temperature chamber. However, the following preventive maintenance steps are suggested.

16.1

Maintenance Checks / Procedures

All interlocks and safety features should be tested periodically for proper operation.

Door Gasket: Inspect the door gasket for wear (cracks, tears, etc.). Replace gasket if significant wear is evident. Inspection Period: 30 Days

Door Sealing Quality: Check that the door seals evenly around its perimeter to any leak to atmosphere. Adjust door latch if necessary. Inspection Period: 30 Days

General Electrical Connections: Remove All Power From Chamber! Inspect inside the control panel and the machinery compartment for loose electrical connections, frayed wires, loose components, or other potential problems. Inspection Period: 6 Months

Vacuum Chamber - Models 8S thru 64S

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TENNEY ENVIRONMENTAL

Electrical Supply Voltage: Measure the power supply voltage to your oven and verify that it is within the ±10% tolerance established for the nameplate rating of your oven. Inspection Period: 6 Months

Controller Calibration: The main temperature and high limit controllers should be checked for temperature indicating accuracy, and for the proper activation of limit or alarm outputs. Please reference the controller user manual for more information. Inspection Period: 1 Year

Vacuum System: Remove All Power From Chamber! Inspect all connections in the vacuum system. If your vacuum system employs an oil lubricated vacuum pump, you must periodically change the oil as directed in the vendor's pump manual. Inspection Period: Refer to vendor's manual.

Vacuum Chamber - Models 8S thru 64S

Page 37

TENNEY ENVIRONMENTAL

16.2

Preventative Maintenance Schedule / Log

Important: For each of the items to be inspected, refer to item description sections for details on maintenance and service.

PREVENTATIVE MAINTENANCE SCHEDULE / LOG

ITEM TO BE INSPECTED

Door Gasket Door Sealing Quality General Electrical Connections Electrical Supply Voltage Main Temperature Controller Calibration Vacuum Pump / System

Inspection Period

Actual Date Inspected / Serviced

Actual Date Inspected / Serviced

Actual Date Inspected / Serviced

Actual Date Inspected / Serviced

30 Days 30 Days 6 Months 6 Months 1 Year See Vendor's Manual

Vacuum Chamber - Models 8S thru 64S

Page 38

TENNEY ENVIRONMENTAL

SUPPLEMENTAL INSTRUCTIONS

Vacuum Chamber - Models 8S thru 64S

Page 39

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