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Michell Instruments SF52 Скачать руководство пользователя страница 6

SF52 User’s Manual

vi

97224 Issue 5, June 2017

Abbreviations

The following abbreviations are used in this manual:

bar

pressure unit (=100 kP or 0.987 atm)

°C degrees

Celsius

°F degrees

Fahrenheit

DC

direct

current

Dp

Dew

point

g grams
g/m

3

grams per cubic meter

gr/ft

3

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 listed below is applicable to this instrument. It is repeated

in the text in the appropriate locations.

Where this hazard warning symbol appears in the following

sections it is used to indicate areas where potentially hazardous

operations need to be carried out.

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Содержание SF52

Страница 1: ...SF52 Dew Point Transmitter User s Manual 97224 Issue 5 June 2017...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 15: ...SF52 User s Manual Michell Instruments 9 APPENDIX A Appendix A Technical Specifications...

Страница 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...

Страница 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...

Страница 18: ...SF52 User s Manual 12 97224 Issue 5 June 2017 APPENDIX B Appendix B Quality Recycling Warranty Information...

Страница 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...

Страница 20: ...SF52 User s Manual 14 97224 Issue 5 June 2017 APPENDIX C Appendix C Recommended Practices in Humidity Measurement...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 25: ...SF52 User s Manual Michell Instruments 19 APPENDIX D Appendix D Return Document Decontamination Declaration...

Страница 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...

Страница 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...

Страница 28: ...http www michell com...

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