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SF82 

Dew-Point Transmitter 

User’s Manual 

97576 Issue 1

 

June 2019 

nbn Austria GmbH

Содержание SF82 Series

Страница 1: ...SF82 Dew Point Transmitter User s Manual 97576 Issue 1 June 2019 nbn Austria GmbH...

Страница 2: ...his information when contacting Michell Instruments for service purposes Analyzer Code Serial Number Invoice Date Location of Analyzer Tag No Analyzer Code Serial Number Invoice Date Location of Analy...

Страница 3: ...2019 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 Processi...

Страница 4: ...ity iv Abbreviations iv Warnings iv 1 INTRODUCTION 1 2 INSTALLATION 2 2 1 Unpacking the Instrument 2 2 2 Preparation of the Sensor Cable 3 2 3 Cable Connection 5 2 4 Electrical Schematic 5 2 4 1 Elect...

Страница 5: ...e 1 Connector Terminal Block Removal 3 Figure 2 Wiring Connections 3 Figure 3 Sensor Connector Installation 4 Figure 4 Cable Connections 4 Figure 5 Connector Installation 5 Figure 6 2 Wire Connection...

Страница 6: ...emperature range of 40 C to 60 C and dependant on version as being IP66 65 See Specification section for full details Pressure Safety DO NOT permit pressures greater than the safe working pressure to...

Страница 7: ...ons are used in this manual barg pressure unit 100 kP or 0 987 atm bar gauge C degrees Celsius F degrees Fahrenheit DC direct current g grams in inch es m micrometer m sec meters per second mA milliam...

Страница 8: ...s a loop powered dew point transmitter designed to make dew point measurements in a flowing sample The SF82 transmitter is available with 3 different process connections 5 8 18 UNF 3 4 16 UNF G1 2 BSP...

Страница 9: ...ing materials ensure they are recycled in accordance with local legislation The transmitter will also be supplied with a process seal which will be fitted to the unit Depending on the version this wil...

Страница 10: ...3650 Version Cable connections to the SF82 transmitter are made via the removable connector Removing the central screw enables the connector terminal block to be removed from the outer housing by usin...

Страница 11: ...h moulded M12 connectors are available from Michell Instruments in the following lengths 0 8 m 2 m 5 m 10 m 4 20 mA 2 wire PIN 1 Modbus A PIN 2 Modbus B PIN 3 4 20 mA PIN 4 Power Supply PIN 5 0 V The...

Страница 12: ...installing the connector the securing screw with the O ring and washer must be tightened to a minimum torque of 3 4 Nm 2 5 ft lbs The sensor cable used must be a minimum diameter of 4 6 mm 0 2 M12 5...

Страница 13: ...sample with the SF82 Transmitter In situ measurements are made by placing the transmitter inside the environment to be measured Extractive measurements are made by installing the sensor into a block...

Страница 14: ...x itself or any moisture released from the work piece Position B is on the gas outlet In this position the sensor will be exposed to the gas leaving the glove box and will therefore be detecting any m...

Страница 15: ...rm of a sintered guard either HMWPE 10 m pore size or Stainless Steel 80 m pore size If the sample stream contains smaller particulates than this or generally large amounts of dust extractive measurem...

Страница 16: ...ure of solids even including the crystalline structure of metals The graph above demonstrates this effect by showing the increase in dew point temperature seen when passing very dry gas through tubing...

Страница 17: ...materials appropriate to the results you need The effects of diffusion or moisture trapped in materials are more significant when measuring very dry gases than when measuring a sample with a high lev...

Страница 18: ...complex sampling system which will then gradually be released into the sample flow Increase the chance of contamination from back diffusion Ambient air that is wetter than the sample can flow from th...

Страница 19: ...nature sensitive devices Many processes contain dust dirt or liquid droplets Particulate filters are used for removing dirt rust scale and any other solids that may be in a sample stream For protecti...

Страница 20: ...ation by handling the transmitter by the main body only avoiding contact with the sensor guard 3 Ensure that the O ring is seated in the recess at the top of the transmitter body 4 Screw the transmitt...

Страница 21: ...ody only avoiding contact with the sensor guard 3 Pass the bonded seal over the 5 8 18 UNF mounting thread 4 Screw the transmitter into the adaptor and tighten to 30 5 Nm 22 5 ft lbs 5 NOTE Use the fl...

Страница 22: ...ite HMWPE guard standard or a stainless steel guard if specified at time or order The sensor guard should be replaced if the surface shows any damage or signs of discolouration When replacing a guard...

Страница 23: ...SF82 Transmitter User s Manual 97576 Issue 1 June 2019 16 APPENDIX A Technical Specifications...

Страница 24: ...rrent source Modbus RTU over RS485 digital communications Moisture Output Dew point or moisture content Temperature Output Not available Data via Modbus RTU Analog output scaled range 4 20 mA Dew poin...

Страница 25: ...ess protection in accordance with NEMA 250 current version IP65 Housing material 316 stainless steel Dimensions L 133 mm x 45 mm with connector cable L 156 mm x 45 mm with connector cable Filter senso...

Страница 26: ...SF82 Transmitter User s Manual 19 Michell Instruments Product Dimensions M12 5 8 UNF M12 G1 2 M12 3 4 UNF...

Страница 27: ...SF82 Transmitter User s Manual 97576 Issue 1 June 2019 20 MiniDIN 5 8 UNF MiniDIN G1 2 MiniDIN 3 4 UNF...

Страница 28: ...SF82 Transmitter User s Manual 21 Michell Instruments 5 8 UNF 3 4 UNF G1 2 Quick Connect...

Страница 29: ...SF82 Transmitter User s Manual 97576 Issue 1 June 2019 22 APPENDIX B Quality Recycling Warranty Information...

Страница 30: ...slation and directives Full information can be found on our website at www michell com compliance This page contains information on the following directives ATEX Directive Calibration Facilities Confl...

Страница 31: ...SF82 Transmitter User s Manual 97576 Issue 1 June 2019 24 APPENDIX C Return Document Contamination Declaration...

Страница 32: ...SF82 Transmitter User s Manual 25 Michell Instruments Return Document Decontamination Declaration...

Страница 33: ...SF82 Transmitter User s Manual 97576 Issue 1 June 2019 26 APPENDIX D Modbus Register Map...

Страница 34: ...s Data Type Description uint16 16 bit unsigned integer can contain options list e g 0 Dew Point 1 Temperature int16 16 bit signed integer int32 32 bit signed integer stored across 2 16 bit registers f...

Страница 35: ...03 V12 003 5 05 R uint16 Register Map Version Divide by 1000 ie 12003 V12 003 6 06 R uint16 Year of Calibration 7 07 R uint16 Month of Calibration 8 08 R uint16 Day of Calibration 14 0E R special Stat...

Страница 36: ...ter is changed See parameter ranges below 112 70 Analogue Output Range Low Low Word 113 71 R W float Analogue Output Range High High Word This value is clipped when parameter is changed See parameter...

Страница 37: ...SF82 Transmitter User s Manual 97576 Issue 1 June 2019 30 Parameter Ranges Min Max Dew Point 150 250 Temperature 150 250 ppmV 0 30000...

Страница 38: ...n at www nbn at Tel 43 316 402805 Fax 43 316 402506 Riesstra e 146 8010 Graz nbn Austria GmbH Aufgrund laufenderWeiterentwicklungen sind nderungen der Spezifikationen vorbehalten Alle Angaben vorbehal...

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