Instrutech The Stinger CVM211GAA User Manual

Convection vacuum gauge module

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InstruTech CVM211GAA

Stinger Convection Vacuum Gauge

A l l t r a d e m a r k s , b r a n d n a m e s , a n d b r a n d s a p p e a r i n g h e r e i n a r e t h e p r o p e r t y o f t h e i r r e s p e c t i v e o w n e r s .

• C r i t i c a l a n d e x p e d i t e d s e r v i c e s

• I n s t o c k / R e a d y - t o - s h i p

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Page 1 InstruTech CVM211GAA Stinger Convection Vacuum Gauge Limited Availability Used and in Excellent Condition Buy Today! https://www.artisantg.com/59806-1 A l l t r a d e m a r k s , b r a n d n a m e s , a n d b r a n d s a p p e a r i n g h e r e i n a r e t h e p r o p e r t y o f t h e i r r e s p e c t i v e o w n e r s .
Page 2 InstruTech® CVM211 Convection Vacuum Gauge Module The Stinger™ User Manual (Unit of measure in Torr / mTorr) InstruTech 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 000219-110...
Page 3: Shock Hazard
In no event will InstruTech be responsible or liable for indirect or consequential damages that result from the use or application of this equipment.
Page 4 Copyright © 2012 by InstruTech 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.
Page 5: Table Of Contents
Mechanical Installation .........................9 Electrical Installation ........................10 3.2.1 Grounding ..........................10 3.2.2 Electrical Connections......................10 Setup and Operation ...........................11 Initial Setup ..........................11 User Interface Basics ........................11 Programming ..........................12 Return to Factory Default Settings .....................13 Using the gauge with different gases ....................15 InstruTech Page 1...
Page 6 CVM211 Stinger Display ..............................17 Analog Output .............................18 Non-Linear Analog Output ......................19 Log-Linear Analog Output ......................21 Service ..............................23 Calibration ...........................23 Maintenance ..........................23 Troubleshooting ..........................23 Contamination ..........................24 Module and sensor replacement ....................25 Factory Service and Support .......................26 10 Warranty .............................26 InstruTech Page 2...
Page 7: Introduction / General Information
1 Torr, convection-enhanced Pirani gauges increase the measuring range to just above atmosphere. The InstruTech® CVM211 Stinger™ module provides the basic signal conditioning required to turn a convection vacuum gauge into a complete measuring instrument. There are two different models of Stinger. One model provides a non-linear analog output, and one setpoint relay.
Page 8: Dimensions
Input: 100 - 240 Vac Output: 24 Vdc @ 750 mA (18 W) with Universal European AC Plug Various AC plugs, 6 ft. cable length PS401-EU with UK AC Plug PS401-UK with China AC Plug PS401-C with Australian AC Plug PS401-SP InstruTech Page 4...
Page 9 The conventional IEC60320 AC power entry receptacle allows use with any user supplied AC mains power cord set available worldwide. Input: 100 - 240 Vac Output: 24 Vdc @ 2.5 A (60 W) Cable Length: 6 ft. InstruTech Page 5...
Page 10: Important Safety Information
CVM211 Stinger 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 11: 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 12: Overpressure And Use With Hazardous Gases
WARNING! Do not attempt to use with gases other than nitrogen (N ) 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 to other gas is properly used.
Page 13: 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 Page 9...
Page 14: Electrical Installation
A good recommended practice is to remove power from any cable prior to connecting or disconnecting it. The InstruTech CVM211 will directly replace Granville-Phillips® Mini-Convectron® modules that have a 9-pin D-sub connector (DE-9P), and you can use your existing cables and electronics.
Page 15: Setup And Operation
<select> key. Pressing the switch upward is referred to as pressing the <up> key. Pressing the switch downward is referred to as pressing the <down> key. During setup, and operation, be sure to consider the Torr/mTorr LEDs. InstruTech Page 11...
Page 16: Programming
It is good practice to perform the sequence of checking and adjusting span (ATM) then zero (VAC) and then, finally re-checking the span setting to ensure that the circuitry is properly balanced for use in measuring pressure throughout the intended measurement range. InstruTech Page 12...
Page 17: Return To Factory Default Settings
5 seconds has passed, the display will return to normal pressure display without resetting to factory defaults. If you reset all values to original factory default settings, you would need to repeat the initial setup procedure as described in section 4.1 and reprogram other parameters as required. InstruTech Page 13...
Page 18: User Interface Map
To return all settings to original factory defaults, press <up> key and hold for 5 seconds. Display will read "dEF". After 5 seconds, factory default settings will replace all user-settings, and readout will return to normal pressure display. InstruTech Page 14...
Page 19: 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 20 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.
Page 21: Display
2) Gas used is argon (Ar). Display shows pressure measurement of 600 mTorr. True pressure of argon is 1 Torr. 3) Gas used is oxygen (O ). Display shows pressure measurement of 486 mTorr. True pressure of oxygen is 500 mTorr. InstruTech Page 17...
Page 22: Analog Output
Log-Linear Output Output - Volts Output - Volts Many InstruTech modules and controllers also provide a log-linear output signal, as an alternative to the non- linear signal described above. This output, shown at right, is a 1 Volt per decade signal that may be easier to use for data logging or control.
Page 23: Non-Linear Analog Output
= Pressure = 1.0E-03 Torr The equations listed above are used to calculate the non-linear voltage outputs for N /air shown in the table below. Non- linear voltage outputs for various other gases are also shown in the same table. InstruTech Page 19...
Page 24 An analog output of less than .01 volts to near 0 volt indicates a damaged or faulty sensor. Refer to the next page if you have a CVM211 Stinger with a log-linear analog output. InstruTech Page 20...
Page 25: Log-Linear Analog Output
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 Page 21...
Page 26 Instruction Manual CVM211 Stinger 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 Page 22...
Page 27: Service
Care should be exercised when using gases other than nitrogen (N ) / air. 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 28: 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 29: Module And Sensor Replacement
The CVM211 module is factory calibrated for the specific sensor (gauge tube) installed in it. If the device fails for any reason, return the CVM211 to the factory to determine if either the sensor or the electronics could be replaced or if the entire module should be replaced. InstruTech Page 25...
Page 30: 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 31 InstruTech® 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 000219-110...

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