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Easidew
Dewpoint Transmitter
User's Manual
Kahn Instruments, Inc. 2015
This document is the property of Kahn Instruments and may not, either in part or whole, be copied or
otherwise reproduced, communicated in any way to third parties nor stored in any data processing
system, without the written authority of Kahn Instruments, Inc.
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Table of Contents
Related Manuals for Kahn Easidew
Summary of Contents for Kahn Easidew
- Page 1 User’s Manual Kahn Instruments, Inc. 2015 This document is the property of Kahn Instruments and may not, either in part or whole, be copied or otherwise reproduced, communicated in any way to third parties nor stored in any data processing...
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Page 2: Table Of Contents
Figure 4 Connector Installation .................4 Figure 5 2-Wire Connection Diagram .................4 Figure 6 Maximum Load of Easidew - Including Cable Resistance ........5 Figure 7 Transmitter Mounting - Sensor Block ............6 Figure 8 Transmitter Mounting - Pipe or Duct.............7 Figure 9 Installation Location ...................8... -
Page 3: Safety
Easidew Transmitter User’s Manual Safety The manufacturer has designed this equipment to be safe when operated using the procedures detailed in this manual. The user must not use this equipment for any other purpose than that stated. Do not apply values greater than the maximum value stated. -
Page 4: Abbreviations
Easidew Transmitter User’s Manual Abbreviations The following abbreviations are used in this manual: barg pressure unit (=100 kP or 0.987 atm) gauge ºC degrees Celsius ºF degrees Fahrenheit direct current ft-lbs foot-pound force grams inch(es) µm micrometer m/sec meters per second... -
Page 5: Introduction
If there are any questions about the instrument or how to install and operate it, please contact a Kahn representative (for Kahn Instruments’ contact information go to www.kahn.com). -
Page 6: Installation
Easidew Transmitter User’s Manual INSTALLATION INSTALLATION Unpacking the Instrument On delivery, please check that all the following standard components are in the packing box: • Easidew Transmitter • Bonded Seal • Certificate of Calibration • Connector (for sensor/cable) Unpack the dew-point transmitter box as follows:... -
Page 7: Preparation Of The Sensor Cable
The sensor cable is NOT supplied as standard. A cable can be obtained by contacting Kahn Instruments (see www.kahn.com for details). Cable connection to the Easidew transmitter is made via the removable connector. Removing the central screw enables the connector terminal block to be removed from the outer housing by using a small screwdriver to pry it clear. -
Page 8: Cable Connection
Easidew Transmitter User’s Manual INSTALLATION Cable Connection When installing the connector, and to insure that full ingress protection is achieved, the retaining screw (with the O-ring and washer) must be tightened to a minimum torque setting of 2.5 ft-lbs (3.4 Nm). The sensor cable used must be a minimum diameter of 0.2”... -
Page 9: Electrical Boundaries
(handle the transmitter by the main body only, avoiding contact with the sensor guard). The Easidew can be mounted into either a flow-through sensor sampling block (optional) or directly inserted into a pipe or duct and can be operated at pressures of up to 5000 psig when installed with the bonded seal provided. -
Page 10: Transmitter Mounting - Sample Block (Optional)
Easidew Transmitter User’s Manual INSTALLATION 2.5.1 Transmitter Mounting - Sample Block (Optional) The following procedure must be carried out by a qualified installation technician. To mount the transmitter into the sensor block (preferred method), proceed as follows, refer to Figure 7. -
Page 11: Transmitter Mounting - Direct Pipeline Connection
Easidew Transmitter User’s Manual INSTALLATION 2.5.2 Transmitter Mounting - Direct Pipeline Connection The transmitter may be directly mounted into a pipe or duct, as shown in Figure 8 CAUTION: Do not mount the transmitter too close to the bottom of a bend where any condensate in the pipeline might collect and saturate the probe. -
Page 12: Operation
For more demanding applications Kahn Instruments offers a range of sampling systems (for more information contact www.kahn.com). -
Page 13: Maintenance
Calibration Routine maintenance of the Easidew is confined to regular re-calibration by exposure of the Easidew to sample gases of known moisture content to ensure that the stated accuracy of the Easidew is maintained. Calibration services traceable to the National Institute of Standards and Technology (NIST) are provided by Kahn Instruments. - Page 14 Easidew Transmitter User’s Manual APPENDIX A Appendix A Technical Specifications Issue 9.1 December 2012...
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Page 15: Appendix A Technical Specifications
Easidew Transmitter User’s Manual APPENDIX A Appendix A Technical Specifications Performance Measurement Range (Dew Point) -148 to +68ºFdp (-100 to +20ºCdp) Accuracy (Dew Point) ±3.6ºFdp (±2ºCdp) Response Time 5 mins to T95 (dry to wet) Repeatability 0.9ºFdp (0.5ºCdp) Calibration 13 point calibration with traceable 7 point calibration certificate... -
Page 16: Figure 12 Dimensions - Easidew
Easidew Transmitter User’s Manual APPENDIX A Dimensions Sensor 5/8” Bonded Seal 132mm (5.19”) 46mm 45mm (1.81”) (1.77”) 27mm ø27mm 10mm ø25.4 x 2mm (1.06”) (0.39”) (1.06”) (ø1 x 0.07”) 5/8” 18 UNF 10mm (0.39”) -
Page 17: Appendix Bul Certification
Easidew Transmitter User’s Manual APPENDIX B Appendix B UL Certification Listing Number E331965 Standards: UL61010-1 2nd Edition CAN/CSA C22.2 No. UL61010-1 2nd Edition Kahn Instruments... - Page 18 Easidew Transmitter User’s Manual APPENDIX C Appendix C EC Declaraton of Conformity Issue 9.1 December 2012...
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Page 19: Appendix Cec Declaration Of Conformity
Easidew Transmitter User’s Manual APPENDIX C Appendix C EC Declaration of Conformity Kahn Instruments... - Page 20 http://www.kahn.com...