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Related Manuals for Michell Instruments Easidew
Summary of Contents for Michell Instruments Easidew
- Page 1 Easidew Dew-Point Transmitter User’s Manual...
- Page 2 Please fi ll out the form(s) below for each instrument that has been purchased. Use this information when contacting Michell Instruments for service purposes. Transmitter Code Serial Number Invoice Date Location of Instrument Tag No Transmitter Code Serial Number Invoice Date...
- Page 3 © 2014 Michell Instruments This document is the property of Michell Instruments Ltd. 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 Michell Instruments Ltd.
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Page 4: Table Of Contents
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 Transmitter Mounting with Adapter .............. -
Page 5: Safety
The instrument should be returned to the manufacturer, Michell Instruments Ltd., or one of their accredited service agents for re-calibration. Safety Conformity This product meets the essential protection requirements of the relevant EU and US standards and directives. -
Page 6: 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 7: Introduction
Michell representative (for Michell Instruments’ contact information go to www.michell.com). Features The Easidew dew-point transmitter is a continuous on line 4-20mA transmitter for the measurement of moisture content in air and other non-corrosive gases. The key features are: •... -
Page 8: 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 tube: • Easidew Transmitter • Bonded Seal • Certifi cate of Calibration • Connector (for sensor/cable) Unpack the dew-point transmitter tube as follows:... -
Page 9: Preparation Of The Sensor Cable
The sensor cable is NOT supplied as standard. A cable can be obtained by contacting your local distributor or Michell Instruments (see www.michell.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 prise it clear. -
Page 10: Cable Connection
Easidew Transmitter User’s Manual INSTALLATION Cable Connection When installing the connector, and to ensure that full ingress protection is achieved, the securing screw (with the O-ring and washer) must be tightened to a minimum torque setting of 3.4 Nm (2.5 ft-lbs). The sensor cable used must be a minimum diameter of 4.6mm (0.2”). -
Page 11: Electrical Boundaries
(handle the transmitter by the main body only, avoiding contact with the sensor guard). The Easidew can be mounted into either a fl ow-through sensor sampling block (optional) or directly inserted into a pipe or duct and can be operated at pressures of up to 45 MPa (450 barg / 6500 psig) when fi... -
Page 12: 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 qualifi ed installation engineer. To mount the transmitter into the sensor block (preferred method), proceed as follows, refer to Figure 7. -
Page 13: 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 14: Transmitter Mounting - With An Additional Process Connection Adapter
Easidew Transmitter User’s Manual INSTALLATION 2.5.3 Transmitter Mounting - With Additional Process Connection Adapter The following procedure must be carried out by a qualifi ed installation engineer. To mount the adapter into the transmitter, proceed as follows (see Figure 9) : 1. -
Page 15: Operation
fi lter, as a minimum level of protection. For more demanding applications Michell Instruments offers a range of sampling systems (for more information contact www.michell.com). -
Page 16: Maintenance
Routine maintenance of the Easidew is confi ned 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 UK National Physical Laboratory (NPL) and the US National Institute of Standards and Technology (NIST) are provided by Michell Instruments. - Page 17 Easidew Transmitter User’s Manual APPENDIX A Appendix A Technical Specifi cations Michell Instruments...
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Page 18: Appendix A Technical Specifi Cations
Easidew Transmitter User’s Manual APPENDIX A Appendix A Technical Specifi cations Performance Measurement Range (Dew Point) -100 to +20ºCdp (-148 to +68ºFdp) Accuracy (Dew Point) ±2ºCdp (±3.6ºFdp) Response Time 5 mins to T95 (dry to wet) Repeatability 0.5ºCdp (0.9ºFdp) Calibration 13 point calibration with traceable 7 point calibration certifi... -
Page 19: Figure 13 Dimensions - Easidew
Easidew Transmitter User’s Manual APPENDIX A Dimensions Sensor 5/8” Bonded Seal 132mm ø25.4 x 2mm (5.19”) 46mm (ø1 x 0.07”) (1.81”) ø27mm 10mm (0.39”) (1.06”) 5/8” 18 UNF 10mm (0.39”) 45mm (1.77”) 27mm (1.06”) Figure 13 Dimensions - Easidew Michell Instruments... - Page 20 Easidew Transmitter User’s Manual APPENDIX B Appendix B EC Declaration of Conformity 97098 Issue 9.3, September 2014...
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Page 21: Appendix Bec Declaration Of Conformity
Easidew Transmitter User’s Manual APPENDIX B Appendix B EC Declaration of Conformity Michell Instruments... - Page 22 Easidew Transmitter User’s Manual APPENDIX C Appendix C Quality, Recycling & Warranty Information 97098 Issue 9.3, September 2014...
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Page 23: Appendix C Quality, Recycling & Warranty Information
The directives’ aim is to reduce the impact that electronic devices have on the environment. Michell Instruments is in full compliance with the WEEE Directive and is registered with an approved recycler (Registration No. WEE/JB0235YW) and treats the requirement of the directive and the protection of the environment with the utmost importance. -
Page 24: Rohs2 Compliance
Equipment product sold into the EU market place as 22nd July 2017. However, the careful design policy of all Michell Instruments’ products continues to attain compliance in the shortest practical timescales and strives to ensure that less than 0.1% of total mass per product, of all non-compliant materials, appear within them. -
Page 25: Reach Compliance
Our continued review of the SVHC Candidate List and latest additions is to ensure we remain compliant. Michell Instruments maintains a hazardous material register in which MSDS data sheets are collated, and we will check that our suppliers will comply to REACH requirements for all materials and substances we use in the processes of our manufacturing. -
Page 26: Return Policy
Easidew Transmitter User’s Manual APPENDIX C Return Policy If a Michell Instruments’ product malfunctions within the warranty period, the following procedure must be completed: Notify a Michell Instruments’ distributor, giving full details of the problem, the model variant and the serial number of the product. - Page 27 Easidew Transmitter User’s Manual APPENDIX D Appendix D Return Document & Decontamination Declaration Michell Instruments...
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Page 28: Appendix D Return Document & Decontamination Declaration
Has the equipment been cleaned and decontaminated? NOT NECESSARY Michell Instruments will not accept instruments that have been exposed to toxins, radio-activity or bio-hazardous Work will not be carried out on any unit that does not have a completed decontamination declaration. - Page 29 Easidew Transmitter User’s Manual NOTES: Michell Instruments...
- Page 30 Easidew Transmitter User’s Manual NOTES: 97098 Issue 9.3, September 2014...
- Page 31 Easidew Transmitter User’s Manual NOTES: Michell Instruments...
- Page 32 http://www.michell.com...
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