SF52
Dew-Point Transmitter
User’s Manual
97224 Issue 5
June 2017
Page 1: ...SF52 Dew Point Transmitter User s Manual 97224 Issue 5 June 2017...
Page 2: ...formation when contacting Michell Instruments for service purposes Transmitter Code Serial Number Invoice Date Location of Instrument Tag No Transmitter Code Serial Number Invoice Date Location of Ins...
Page 3: ...d 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 SF52...
Page 4: ...ations vi Warnings vi Appendices Appendix A Technical Specifications 10 A 1 Dimensions 11 Appendix B Quality Recycling Warranty Information 13 Appendix C Recommended Practices in Humidity Measurements...
Page 5: ...an the safe working pressure to be applied to the instrument The specified safe working pressure is up to 2 MPa 20 barg 290 psig maximum Toxic Materials The use of hazardous materials in the construct...
Page 6: ...r ft3 grains per cubic foot m meter s mA milliampere mm millimetres psi pounds per square inch percentage oz ounces RH relative humidity V Volts inches feet Warnings The following general warning list...
Page 7: ...e calibration system providing OEM quantities of units on short deliveries each with a 3 point calibration certificate 1 1 Features Ideal for OEM dryer use Dew point measurement range 40 to 60 C 40 to...
Page 8: ...ndard components are in the packing box SF52 transmitter G BSP Bonded seal fitted over threaded part of transmitter body NOTE Not applicable to the NPT Certificate of calibration Quick Start Guide NOT...
Page 9: ...0 V for 0 to 1 V output Figure 2 Voltage 3 Wire Connections Supply 8 to 30 V for 4 20 mA output White Green Max load 20 mA Yellow do not use Brown Figure 3 mA 3 Wire Connections 2 2 1 Electrical Bound...
Page 10: ...d at pressures of up to 2 MPa 20 barg 290 psig when fitted with the bonded seal provided The recommended gas flow rate when mounted in the optional sampling block is 1 to 5 Nl min 2 1 to 10 6 scfh How...
Page 11: ...eaded part of the transmitter body NOTE The bonded seal has a flat side and a rounded side It is important that the flat side is next to the sensor steel body in order to give it the correct seal Unde...
Page 12: ...circular pipework to ensure the integrity of a gas tight seal a mounting flange will be required on the pipework in order to provide a flat surface to seal against The following procedure must be carr...
Page 13: ...iculate matter may blind the sensing element and reduce its response speed If particulate such as degraded desiccant pipe scale or rust is present in the sample gas use an in line filter as a minimum...
Page 14: ...tory NPL and the US National Institute of Standards and Technology NIST are provided by Michell Instruments Michell Instruments offers a variety of re calibration schemes to suit specific needs A Mich...
Page 15: ...SF52 User s Manual Michell Instruments 9 APPENDIX A Appendix A Technical Specifications...
Page 16: ...o 30 V DC for 0 to 10 V output 8 to 30 V DC for 0 to 1 0 to 5 V 4 20 mA output Current Consumption V output 9 mA mA output 29 mA CE Marked Certified Operating Specifications Operating Humidity 0 100 R...
Page 17: ...0 2 2 19 5 19 0 O 28 3 M24 x 1 5 7H LOOSE FIT 2 OFF TAP M6 x 5 FTD 1 x 45v BOTH ENDS TAP 1 8 BSP TAP 1 4 BSP 3 2 3 2 3 2 3 2 A A TAP 1 2 BSP x 18 0 DEEP MINIMAL CHAMFER LEAD IN TO REMOVE SHARP EDGES...
Page 18: ...SF52 User s Manual 12 97224 Issue 5 June 2017 APPENDIX B Appendix B Quality Recycling Warranty Information...
Page 19: ...ves 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 Conflict Minerals FCC St...
Page 20: ...SF52 User s Manual 14 97224 Issue 5 June 2017 APPENDIX C Appendix C Recommended Practices in Humidity Measurement...
Page 21: ...strument for the job Allow hygrometers to equilibrate in any new environment This is particularly necessary after changes in temperature due to transportation or storage Depending on the instrument an...
Page 22: ...re changes can increase the tendency of these materials to affect the humidity of the surrounding air Condensation in a sampling process can invalidate humidity measurements by reducing the water cont...
Page 23: ...ents Ambient humidity Avoid using hygrometers near the body which is a source of heat and moisture Do not breathe close to the measurement High humidity above the ambient range Ample lines should be m...
Page 24: ...es of hygrometer Relative humidity capacitive sensor Care should be taken to avoid mechanical shock impact or thermal shock sudden temperature changes Sensors should be protected from steam or water s...
Page 25: ...SF52 User s Manual Michell Instruments 19 APPENDIX D Appendix D Return Document Decontamination Declaration...
Page 26: ...cals YES NO Radioactive substances YES NO Other hazards YES NO Please provide details of any hazardous materials used with this equipment as indicated above use continuation sheet if necessary Your me...
Page 27: ...3 Electrical equipment for measurement control and laboratory use EMC requirements Group 1 Class B emissions and immunity and has been designed to be in conformance with the relevant sections of the f...
Page 28: ...http www michell com...
