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Kahn Easidew PRO XP User Manual

Moisture transmitter
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Easidew PRO XP
Moisture Transmitter
User's Manual
Kahn Instruments, Inc. 2016
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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  • Page 1 User’s Manual Kahn Instruments, Inc. 2016 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...
  • Page 2 © 2016 Kahn Instruments This document is the property of Kahn Instruments , Inc. and may not be copied or otherwise reproduced, communicated in any way to third parties, nor stored in any Data Processing System without the express written authorization of Kahn Instruments , Inc.

  • Page 3: Table Of Contents

    Easidew PRO XP EX2 (Display) ............... 9 2.4.3 Electrical Boundaries ................... 10 Preparation of the Sensor Cable ................ 11 2.5.1 Terminal Block Connection - Easidew PRO XP EX1 (Non-Display) ....11 2.5.2 Terminal Block Connection - Easidew PRO XP EX2 (Display) ......12 OPERATION ....................14 3.1 Measurement and Configuration ................
  • Page 4 Dimensions Easidew PRO XP EX2 (Display) - Wall Mounting ......4 Figure 4 Transmitter Mounting - Pipe or Duct.............5 Figure 5 Dimensions Easidew PRO XP EX1 (Non-Display) - Pipe or Duct .....5 Figure 6 Dimensions Easidew PRO XP EX2 (Display) - Pipe or Duct ......5 Figure 7 Transmitter Direct Mounting ................6...

  • Page 5: Safety

    Easidew PRO XP 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 6 Easidew PRO XP User’s Manual The input and output connector is a 2-part pcb mounted type, rated at 300 V, 10 A. The detachable, screw terminal half of each connector is designed to accept 0.02 - 0.09 in (0.5- 2.5mm ) [24 -12 AWG] stranded or solid conductors (non-display version only).

  • Page 7: Hazardous Area Safety

    Easidew PRO XP User’s Manual Hazardous Area Safety Appendix B of this manual refers to the Hazardous Area Certification of this product. This product is equipped with a marking label that contains Hazardous Area information pertinent to the suitable location and installation. During all installation and operation activities local regulations and permitted working routines must be observed.

  • Page 8: Pressure Safety

    Pressurized gas should only handled by suitably trained personnel. The Easidew PRO XP requires pressurized gas to be connected to it. Observe pressurized gas handling regulations and only suitable trained personnel should carry out tasks that include the use of pressurized gas.

  • Page 9: Abbreviations

    Easidew PRO XP User’s Manual Abbreviations The following abbreviations are used in this manual: ampere A/F across flats barg pressure unit (=100 kP or 0.987 atm) gauge °C degrees Celsius °F degrees Fahrenheit dew point direct current European Union feet per second...

  • Page 10: Introduction

    For questions about the instrument or how to install and operate it, contact Kahn Instruments (www.kahn.com). There are two variants of the Easidew PRO XP, each available with various options for display, housing, range, etc: Easidew PRO XP-TX...

  • Page 11: Installation

    Pipe mounting bracket (optional) • EN10204 3.1 material certificate (optional) The Easidew PRO XP is protected within the main packaging with a green cap protecting the sensor guard with a desiccant capsule inside (see Figure 1) , and a plastic cap inside the cable entry opening .

  • Page 12: Wall Mounting

    Easidew PRO XP User’s Manual INSTALLATION 2.1.1 Wall Mounting The instrument is housed in an aluminum or stainless steel Exd enclosure suitable for wall or panel mounting. Two mounting points are available with 0.3 in. (ø7mm) clearance holes on locating centers 5.0 in. (127mm) apart. Use quantity 2 max 0.25 in.

  • Page 13: Figure 3 Dimensions Easidew Pro Xp Ex2 (Display) - Wall Mounting

    Easidew PRO XP User’s Manual INSTALLATION Figure 3 Dimensions Easidew PRO XP EX2 (Display) - Wall Mounting 97442 Issue 2.5, January 2016...

  • Page 14: Pipe Mounting

    Easidew PRO XP User’s Manual INSTALLATION 2.1.2 Pipe Mounting The Easidew PRO XP can be supplied with a pipe mounting bracket as an optional accessory, which allows the transmitter to be installed onto pipe up to 2 inch (51mm) diameter. Figure 4...

  • Page 15: Gas Media Process Connection

    It can be operated up to 6500 psig (450 barg) when installed correctly. If the installation is NOT into a Kahn sample block please take note of the following to insure correct installation is undertaken. The following procedure must be carried out by a qualified engineer to insure the safe operation of the pressure system.

  • Page 16: Liquid Media Process Connection

    (see Appendix B.1). The recommended fluid flow rate, when mounted in the optional sample block, is 2.1 to 10.6 scfh (1 to 5 l/min). However, for direct insertion applications, the flow can be from static to 32.8 fps (10 m/sec). The Easidew PRO XP is fitted with a mechanical stop to prevent the accidental over-rotation of the enclosure assembly that would damage the internal sensor wiring. Liquid Media Process Connection When mounting the Easidew PRO XP into a liquid sample the flow rate must be between 0.2 and 0.6 scfh (0.1 and 0.3 l/min).

  • Page 17: Sample Block (Optional)

    Easidew PRO XP User’s Manual INSTALLATION 2.3.1 Sample Block (Optional) The following procedure must be carried out by a qualified engineer to insure the safe operation of the pressure system. Remove the green protective cap and desiccant capsule. Insure the O-ring (see Figure 8) is located correctly within the O-ring groove of the process connection and there is no contamination or debris on its exposed surfaces.

  • Page 18: Electrical Schematic

    (see Figure 15) before the power is applied. Without this connection, the transmitter may be damaged if allowed to operate for prolonged periods. Screen or Conduit SUPPLY LOAD Electrical Schematic - Easidew PRO XP EX1 (Non-Display) Figure 10 Kahn Instruments...

  • Page 19: Electrical Boundaries

    TRANSMITTER LOOP POWER Screen or Conduit LOAD SUPPLY Figure 11 Electrical Schematic - Easidew PRO XP EX2 (Display) 2.4.3 Electrical Boundaries Supply Voltage Figure 12 Maximum Load of Easidew PRO XP - Including Cable Resistance 97442 Issue 2.5, January 2016...

  • Page 20: Preparation Of The Sensor Cable

    Easidew PRO XP User’s Manual INSTALLATION Preparation of the Sensor Cable The sensor cable is not supplied with the Easidew PRO XP, but there are quantity 2 ferrules supplied. Maximum conductor size is 0.75mm². Correct preparation of the cable conductors is essential to insure a reliable connection to the sensor terminals.

  • Page 21: Terminal Block Connection - Easidew Pro Xp Ex2 (Display)

    Set Screw Figure 15 2.5.2 Terminal Block Connection - Easidew PRO XP EX2 (Display) Remove the enclosure lid by carefully unscrewing counter-clockwise. Lift off the display meter and integral mounting bracket from the 2 mounting posts and pull out the terminal block from the underside.
  • Page 22 Easidew PRO XP User’s Manual OPERATION Reattach the enclosure lid in a clockwise direction until it stops and secure in place by tightening the set screw with a 1.5mm A/F Allen key. Set screw Figure 17 Set Screw Kahn Instruments...

  • Page 23: Operation

    The transmitter requires a 6-point look-up table for saturation constants up to 1000 ppmW over the temperature range +32 to +122°F (0 to +50°C). Saturation constants for 8 common liquids can be programmed into the Easidew PRO XP via the Application Software. Alternatively, the user can program saturation constants manually. The Application Software Help file provides detailed instructions on how to perform this task.

  • Page 24: Sampling Hints

    Kahn Instruments offers a range of sampling systems (for more information contact www.kahn.com). Use High Quality Sample Tube and Fittings: Kahn Instruments recommends that, wherever possible, stainless steel tubing and fittings should be used. This is particularly important at low dew points since other...

  • Page 25: Maintenance

    Calibration services traceable to the US National Institute of Standards and Technology (NIST) are provided by Kahn Instruments. Kahn Instruments offers a re-calibration service to suit specific needs. A Kahn representative can provide detailed, custom advice (for Kahn Instruments’ contact information go to www.kahn.com).

  • Page 26: Display Replacement

    Easidew PRO XP User’s Manual MAINTENANCE Display Replacement Unscrew the locking screw on the enclosure cap with a 1.5mm Allen key. Unscrew the cap, lift the display and mounting ring clear from the 2 off mounting pillars, and unplug the connector.

  • Page 27: O-Ring Replacement

    Easidew PRO XP User’s Manual MAINTENANCE O-Ring Replacement Do not touch the filter with bare hands Identify the O-ring to be removed, as shown below. BS116 (3/4” x 3/32”) viton, 75 shore Carefully slide tweezers, thin bladed screwdriver or a blunt needle under the outer edge of the O-ring.
  • Page 28 Easidew PRO XP User’s Manual APPENDIX A Appendix A Technical Specifications Kahn Instruments...

  • Page 29: Appendix A Technical Specifications

    Easidew PRO XP User’s Manual APPENDIX A Appendix A Technical Specifications Easidew PRO XP Easidew PRO XP LQ Product for Gases for Liquids Performance Specifications -166 to +68°Fdp (-110 to 0 to 1000 ppm +20°Cdp) Measurement Range Non-standard available upon -148 to +68°Fdp (-100 to...
  • Page 30 Easidew PRO XP User’s Manual APPENDIX A Mechanical Specifications IP66 in accordance with standard BS EN 60529:1992 Ingress Protection NEMA 4 in accordance with standard NEMA 250-2003 C.R.N. - all Canadian provinces Canadian Pressure Vessel Cert Standard: Aluminum (copper free), epoxy and...
  • Page 31 Easidew PRO XP User’s Manual APPENDIX B Appendix B Hazardous Area Certification 97442 Issue 2.5, January 2016...

  • Page 32: Appendix B Hazardous Area Certification

    Easidew PRO XP User’s Manual APPENDIX B Appendix B Hazardous Area Certification The Easidew PRO XP is certified compliant to the ATEX Directive (2014/34/EU) and IECEx for use within Zone 1 & 2 and Zone 21 & 22 Hazardous Areas and has been assessed so by SIRA Certification (Notified Body 0518).

  • Page 33: Global Certificates/Approvals

    Easidew PRO XP User’s Manual APPENDIX B Global Certificates/Approvals ATEX SIRA14ATEX1007X IECEx IECEx SIR 14.0004X cCSAus 2679645 INMETRO NCC 14.03240 X TC TR Ex RU C-GB.ГБ05.В.00833 These certificates can be viewed or downloaded from our website at: http://www.kahn.com Special Conditions The equipment has been assessed with a U of 28V and shall be installed in accordance with the latest installation requirements of IEC/EN 60079- 14 for intrinsically safe equipment for EPL “Gb”.
  • Page 34 Easidew PRO XP User’s Manual APPENDIX C Appendix C EC Declaration of Conformity Kahn Instruments...

  • Page 35: Appendix Cec Declaration Of Conformity

    Easidew PRO XP User’s Manual APPENDIX C Appendix C EC Declaration of Conformity 97442 Issue 2.5, January 2016...
  • Page 36 Easidew PRO XP User’s Manual APPENDIX D Appendix D Fully Programmable Loop Powered 4-Digit LED Display Meter Kahn Instruments...

  • Page 37: Appendix D Fully Programmable Loop Powered 4-Digit Led Display Meter

    Easidew PRO XP User’s Manual APPENDIX D Appendix D Fully Programmable Loop Powered 4-Digit LED Display Meter In order to re-configure the display meter, the enclosure lid should be removed by unscrewing it in a counter-clockwise direction. Care should be taken when unscrewing and replacing the enclosure lid as the threads form an important part of the Ex compliance regulations and therefore must not be damaged.

  • Page 38: Re-Configuration Steps

    Easidew PRO XP User’s Manual APPENDIX D Re-Configuration Steps To enter menu press the button for 2 seconds. Displayed Text Description Setting decimal point DP Press button Press buttons to change decimal position 1.234 (value 3) 12.34 (value 2) 123.4 (value 1) Factory default...

  • Page 39: Moisture Scaling Label

    Exit from menu and save settings: Press buttons (possible from each page) Moisture Scaling Label The Easidew PRO XP has 3 standard ranges and scales which are as follows: EA-XP-TX -110 to +20°Cdp output range -100 to +20°Cdp output range...

  • Page 40: Technical Specifications - Ex2 Led Display

    Easidew PRO XP User’s Manual APPENDIX D Technical Specifications - EX2 LED Display The display meter is simple in design and is a slave display to the measurement and configuration of the main transmitter pcb. It can be scaled linearly equating to the circulating 4-20 mA signal output from the main transmitter pcb. Back of display module From main transmitter pcb ...
  • Page 41 http://www.kahn.com...

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