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Summary of Contents for Instrutech Super Bee CVM201
- Page 1 InstruTech®, Inc. CVM201 Convection Vacuum Gauge Module The Super Bee™ User Manual InstruTech, Inc. 1475 S. Fordham St. Longmont, CO 80503 Phone: +1-303-651-0551 Fax: +1-303-678-1754 E-mail info@instrutechinc.com www.instrutechinc.com p/n 000312-120...
- Page 2 Copyright © 2012 by InstruTech, Inc. All rights reserved. No part of this work may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or by any information storage or retrieval system, except as may be expressly permitted in writing by InstruTech, Inc.
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Page 3: Table Of Contents
Electrical Connections......................10 Setup and Operation ...........................11 User Interface Basics ........................11 Programming ..........................11 Return to Factory Default Settings .....................13 Using the gauge with different gases ....................14 Display ..............................16 Display - Torr / mTorr ........................16 Display - mbar ..........................17 InstruTech, Inc. Page 1... - Page 4 RS485 / RS232 serial communications ....................25 Device Specific Serial Communication Info .................25 RS485 / RS232 Command Protocol Summary ................26 Service ..............................27 Calibration ...........................27 Maintenance ..........................27 Troubleshooting ..........................27 Contamination ..........................28 Module and sensor replacement ....................29 Factory Service and Support ......................30 Warranty ............................30 InstruTech, Inc. Page 2...
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Page 5: Introduction / General Information
1 Torr, convection-enhanced Pirani gauges increase the measuring range to just above atmosphere. The InstruTech® CVM201 Super Bee™ module provides the basic signal conditioning required to turn a convection vacuum gauge into a complete measuring instrument. The module provides linear, non-linear or log- linear analog outputs, two setpoint relays and RS232/485 serial communications. -
Page 6: Dimensions
(use 1/8 in. NPT male or 1/2 in. O.D. O-ring compression) CVM201GBA NW16KF CVM201GCA NW25KF CVM201GDA NW40KF CVM201GEA 1 1/3 in. Mini-CF / NW16CF Mini-Conflat® CVM201GFA 2 3/4 in. CF / NW35CF Conflat® CVM201GGA 1/4 in. Cajon® 4VCR® female CVM201GHA 1/2 in. Cajon® 8VCR® female InstruTech, Inc. Page 4... - Page 7 This variation of the PS401 power supply PS401-UX may be used when an AC plug that is not listed above is required. The conventional IEC60320 AC power entry receptacle allows use with any user supplied AC mains power cord set available worldwide. InstruTech, Inc. Page 5...
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Page 8: Important Safety Information
CVM201 Super Bee Important Safety Information InstruTech has designed and tested this product to provide safe and reliable service, provided it is installed and operated within the strict safety guidelines provided in this manual. Please read and follow all warnings and instructions. -
Page 9: Safety Precautions - Service And Operation
Do not use if the equipment grounding or electrical insulation has been compromised. Do not use if the unit has been dropped or the enclosure has been damaged. Contact InstruTech for return authorization and instructions for returning the product to InstruTech for evaluation. -
Page 10: Overpressure And Use With Hazardous Gases
) or air without referring to correction factor data tables. InstruTech gauges and modules are calibrated for direct readout of nitrogen or air. Do not attempt to use with other gases such as argon (Ar) or carbon dioxide (CO ) unless accurate conversion data for N to other gas is properly used. -
Page 11: Installation
PTFE (Teflon®) tape and hand tighten the gauge into the gauge port. Do not use a wrench or other tool which may damage the gauge. InstruTech, Inc. Page 9... -
Page 12: Electrical Installation
A good recommended practice is to remove power from any cable prior to connecting or disconnecting it. The InstruTech CVM201 will directly replace Granville-Phillips® Mini-Convectron® modules that have a 9-pin D-sub connector (DE-9P) or 15-pin D-sub connector (DE-15P), and you can use your existing cables and electronics. -
Page 13: Setup And Operation
TORR. In this case, you must reprogram the relay setpoints and linear analog output pressure settings in the newly programmed units-of- measure. InstruTech, Inc. Page 11... - Page 14 ┌Upper nibble┐ ┌Lower nibble┐ 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 1 0 0 0 0 1 1 1 1 0 0 0 1 0 0 0 0 InstruTech, Inc. Page 12...
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Page 15: Return To Factory Default Settings
Return to Factory Default Settings You can reset all values to the original factory default settings by simultaneously pressing the upper left and upper right soft-keys. The user will then be prompted “Set Factory Defaults?” Choose Yes or No. InstruTech, Inc. Page 13... -
Page 16: Using The Gauge With Different Gases
Under normal conditions the voltages and currents in InstruTech convection gauges are too low to cause ignition of flammable gases. However, under certain failure conditions, sufficient energy could be generated to cause flammable vapors or gases to ignite or explode. - Page 17 The X-axis is the pressure reading indicated by the convection gauge under test. This chart shows readings for an InstruTech convection gauge (CVG) and Granville-Phillips® Convectron® gauge to illustrate that the difference in the response for both of these types of gauges is virtually indistinguishable.
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Page 18: Display
Gas used is argon (Ar). Display shows pressure measurement of 600 mTorr. True pressure of argon is 1 Torr. Gas used is oxygen (O ). Display shows pressure measurement of 486 mTorr. True pressure of oxygen is 500 mTorr. InstruTech, Inc. Page 16... -
Page 19: Display - Mbar
Gas used is argon. Display shows pressure measurement of 11.7 mbar. True pressure of argon is 133 mbar. Gas used is CO . Display shows pressure measurement of .0731 mbar. True pressure of CO is .0666 mbar. InstruTech, Inc. Page 17... -
Page 20: Analog Output
Log-Linear Output Log-Linear Analog Output Log-Linear Analog Output Many InstruTech modules and controllers also provide a log-linear output signal, as an alternative to the non- Output - Volts Output - Volts linear signal described above. -
Page 21: Non-Linear Analog Output - Torr / Mtorr
Convectron® gauges, Mini-Convectron® modules and controllers so that equivalent units can be interchanged without affecting your process system or software. An analog output of less than 0.01 volts to near 0 volt indicates a damaged or faulty sensor. InstruTech, Inc. Page 19... -
Page 22: Non-Linear Analog Output - Mbar
Convectron® gauges, Mini-Convectron® modules and controllers so that equivalent units can be interchanged without affecting your process system or software. An analog output of less than 0.01 volts to near 0 volt indicates a damaged or faulty sensor. InstruTech, Inc. Page 20... -
Page 23: Log-Linear Analog Output - Torr
The chart on the following page shows the graphical results of the table and formulas given above for nitrogen. True pressure (N ) is plotted on the X-axis with a log scale. The output signal is plotted on the Y-axis on a linear scale. InstruTech, Inc. Page 21... - Page 24 CVM201 Super Bee Log-Linear Analog Output Voltage vs. Pressure 0.0001 0.001 0.01 1000 Pressure (Torr) Chart of the calculated pressures using the formulas and data for the log-linear output signal for nitrogen from the previous page. InstruTech, Inc. Page 22...
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Page 25: Log-Linear Analog Output - Mbar
The chart on the following page shows the graphical results of the table and formulas given above for nitrogen. True pressure (N ) is plotted on the X-axis with a log scale. The output signal is plotted on the Y-axis on a linear scale. InstruTech, Inc. Page 23... - Page 26 Instruction Manual CVM201 Super Bee Chart of the calculated pressures using the formulas and data for the log-linear output signal for nitrogen from the previous page. InstruTech, Inc. Page 24...
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Page 27: Rs485 / Rs232 Serial Communications
10. All commands sent to the module start with a ‘#’ character, and all responses from the module start with a ‘*’ character. 11. This protocol was designed to be 100% compatible with the Granville-Phillips® Mini-Convectron®. 12. A valid address must be used even in RS232 commands [Factory default = 1]. InstruTech, Inc. Page 25... -
Page 28: Rs485 / Rs232 Command Protocol Summary
(1) Commands marked with a under the “BRIEF DESCRIPTION” column will not take effect until after RESET command is sent or power is cycled. This protocol was designed to be 100% compatible with the Granville- Phillips® Mini-Convectron®. InstruTech, Inc. Page 26... -
Page 29: Service
1 x 10 Torr. Care should be exercised when using gases other than nitrogen (N Maintenance In general, maintenance is not required for your InstruTech module. Periodic performance checks may be done by comparing the gauge to a known reference standard. Troubleshooting... -
Page 30: Contamination
Thermal vacuum gauges may be available with different sensor materials that are not as reactive with your particular process gases. The standard gold plated tungsten sensor used in the InstruTech convection gauge is offered for use with air and inert gases such as N , argon, etc. -
Page 31: Module And Sensor Replacement
CVM201 module should be replaced or returned to the factory for replacement of the sensor and recalibration of the complete CVM201 module. If you prefer to have your sensor replaced and the module recalibrated, contact the factory for return authorization, as described below. InstruTech, Inc. Page 29... -
Page 32: Factory Service And Support
(examination of which shall disclose to SELLER's satisfaction that it is defective) returned, to SELLER's plant, properly identified within twenty four (24) months (unless otherwise noted) after the date of shipment from InstruTech Plant. BUYER must obtain the approval of SELLER and a return authorization number prior to shipment. - Page 33 Instruction Manual CVM201 Super Bee InstruTech, Inc. Page 31...
- Page 34 InstruTech®, Inc. 1475 S. Fordham St. Longmont, CO 80503 Phone +1-303-651-0551 Fax +1-303-678-1754 E-mail info@instrutechinc.com www.instrutechinc.com p/n 000312-120...
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