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USER'S GUIDE

Vaisala HUMICAP® Humidity and

Temperature Transmitter

HMT310

M210619EN-C

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Содержание HUMICAP HMT310

Страница 1: ...USER S GUIDE Vaisala HUMICAP Humidity and Temperature Transmitter HMT310 M210619EN C...

Страница 2: ...echanical including photocopying nor may its contents be communicated to a third party without prior written permission of the copyright holder The contents are subject to change without prior notice...

Страница 3: ...lity 10 Emissions 11 Immunity 11 Trademarks 11 Warranty 12 CHAPTER 2 PRODUCT OVERVIEW 13 Introduction to HMT310 13 Components 14 Probe Options 15 Output Quantities 16 CHAPTER 3 INSTALLATION 17 Selecti...

Страница 4: ...metric Output Units 42 FST Output State of Chemical Purge or Sensor Heating with SEND and R Commands 43 Other Commands 44 Check Transmitter Settings 44 ECHO Serial Bus Echo 44 FIND All Devices in POLL...

Страница 5: ...7 CALIBRATION AND ADJUSTMENT 64 Calibration and Adjustment Commands 64 LI Revert Factory Calibration 64 FCRH Relative Humidity Calibration after Sensor Change 65 CTEXT Set Calibration Information Text...

Страница 6: ...___________________________________ M210619EN C Duct Installation Kits for HMT313 317 315 80 Pressure Tight Swagelok Installation Kits for HMT317 81 RH Probe Installation 81 Examples of Vapor Tight In...

Страница 7: ...e Nut 23 Figure 10 HMT318 Probe Dimensions in mm 25 Figure 11 Sealing of Fitting Body into Process 26 Figure 12 Tightening the Clasp Nut 27 Figure 13 8 Pole Connector 28 Figure 14 Screw Terminal Conne...

Страница 8: ...2000 and Windows NT 32 Table 5 Quantity Abbreviations for FORM Command 40 Table 6 Modifiers 40 Table 7 Output Quantities and their Metric and Nonmetric Units 42 Table 8 Pressure Conversion Chart 46 T...

Страница 9: ...otes for the manual and the product Chapter 2 Product Overview introduces the features advantages and the product nomenclature Chapter 3 Installation provides you with information that is intended to...

Страница 10: ...September 2005 M210619EN C September 2007 Added HUMICAP 180R and HUMICAP 180RC as sensor options General Safety Considerations Throughout the manual important safety considerations are highlighted as...

Страница 11: ...fication can damage the product or lead to malfunction ESD Protection Electrostatic Discharge ESD can cause immediate or latent damage to electronic circuits Vaisala products are adequately protected...

Страница 12: ...d refuse Regulatory Compliances The Humidity and Temperature Transmitter HMT310 complies with the following performance and environmental test standards Electromagnetic Compatibility EN 61326 1 1997 A...

Страница 13: ...plies with Standard Electrostatic discharge ESD EN IEC 61000 4 2 criteria B Radiated immunity EN IEC 61000 4 3 criteria A EFT burst Electric fast transients EN IEC 61000 4 4 criteria B Surge EN IEC 61...

Страница 14: ...shall should Vaisala so require be sent to the works of Vaisala or to such other place as Vaisala may indicate in writing freight and insurance prepaid and properly packed and labelled unless Vaisala...

Страница 15: ...smitter HMT310 is a small size humidity and temperature transmitter that powers up with 12 35 VDC Output alternatives are analog outputs 0 4 20 mA and an RS 232 serial line The following optional func...

Страница 16: ...___________________ M210619EN C Components 0507 032 Figure 1 HMT310 Components The following numbers refer to Figure 1 above 1 Transmitter unit 2 Mounting plate smaller mounting plate also available 3...

Страница 17: ...es The following numbers refer to Figure 2 above 1 HMT311 for wall mounting 2 HMT313 for general use 3 HMT314 for pressurized spaces up to 100 bar 4 HMT315 for high temperatures up to 180 C 242 mm lon...

Страница 18: ...onmetric Unit RH Relative humidity RH RH T Temperature C F TDF Dewpoint Frostpoint C F TD Dewpoint C F A Absolute humidity g m3 gr ft3 X Mixing ratio g kg gr lb TW Wet bulb temperature C F PPM Humid a...

Страница 19: ...representative ambient measurements The site should represent the general area of interest Mounting Mounting the Transmitter Removing the Transmitter Unit Select a place with stable conditions for mou...

Страница 20: ...crews on the left side 0507 034 Figure 3 Mounting with Mounting Plates The following letters and numbers refer to Figure 3 above A Mounting with larger mounting plate B Mounting with smaller mounting...

Страница 21: ...resolder the probe cable from the mother board during installation this may alter the humidity calibration of the transmitter Beware of Temperature Differences In humidity measurement and especially i...

Страница 22: ...emperature is 1 C General Instructions for Probes with Cable It is recommended that the probes with a cable are mounted with the probe horizontal this way any water condensing on the tube cannot flow...

Страница 23: ...led 2 Insulate the cable 3 To be insulated 4 Let the cable hang loosely This prevents condensed water running to the sensor along the cable NOTE Please do not attach a heated probe HMT317 to metal str...

Страница 24: ...amples Duct mounting kit Cable gland HMT314 for Pressurized Spaces HMT314 probe is for humidity measurements in pressurized rooms and industrial processes The probe is provided with a nut a fitting sc...

Страница 25: ...5 or NPT 1 2 5 Tighten the nut a further 30 1 12 turn or if you have a torque spanner tighten it with a torque of 80 10 Nm 60 7 ft lbs 0505 273 Figure 9 Marking the Nut NOTE After detachment the nut m...

Страница 26: ...RES Set Ambient Pressure for Calculations on page 45 HMT315 for High Temperatures HMT315 is installed similarly than the HMT313 probe but without the supporting bar Refer to Appendix A on page 80 for...

Страница 27: ...pelines Oils Due to the sliding fit the HMT338 is easy to install into and remove from the pressurized process The probe is especially suitable for the measurements in pipelines See section Ball Valve...

Страница 28: ...________________ M210619EN C The following two fitting body options are available Fitting Body ISO1 2 solid structure Fitting Body NPT1 2 solid structure Table 3 HMT318 Probe Dimensions Probe Type Pro...

Страница 29: ...g screw and the clasp nut 4 Tighten the nut a further 50 60 ca 1 6 turn with a wrench If you have suitable torque spanner tighten the nut to max 45 5 Nm 33 4 ft lbs 0505 276 Figure 12 Tightening the C...

Страница 30: ...the process in hPa or mbar into the transmitter memory via the serial line see section PRES Set Ambient Pressure for Calculations on page 45 Connections When HMT310 leaves the factory its measurement...

Страница 31: ...TX 2 Brown BRN RS 232 GND 3 Green GRN CH2 4 Yellow YEL CH1 5 Grey GREY Supply CH1 CH2 6 Pink PINK Supply 7 Blue BLU RS 232 RX 8 Red RED Not connected Screw Terminal Connector 0507 045 Figure 14 Screw...

Страница 32: ...USER S GUIDE____________________________________________________________________ 30 _______________________________________________________________ M210619EN C This page intentionally left blank...

Страница 33: ...wakes up Entering Serial Communication Parameters The transmitter communicates via an RS 232 serial interface The transmitter can be polled or set on RUN mode with specific commands The data format w...

Страница 34: ...rTerminal move the cursor to move the cursor to Hypertrm double click Hyperterminal click Connection Description type the name of the connection in the appropriate field and select an icon if availabl...

Страница 35: ...or pressing Enter on your computer keyboard This section presents the command list the commands are described in detail later in this chapter Measurement output R Start continuous outputting S Stop co...

Страница 36: ...urge with SEND and R commands Other commands Check transmitter settings Check transmitter settings in POLL mode ECHO ON OFF Serial bus echo FIND All devices in POLL mode send their addresses HELP List...

Страница 37: ...ormation text CDATE Set calibration date ACAL Analog output calibration Chemical purge PUR ON OFF Enable or disable automatic chemical purge PURGE Activate chemical purge PURR ON OFF Enable or disable...

Страница 38: ...ter keyboard can be used to stop outputting INTV Set Continuous Output Interval for RUN Mode Syntax INTV xxx yyy cr where xxx Output interval 0 255 yyy Unit s min or h Example intv 1 cr Output interva...

Страница 39: ...smitter outputs data continuously POLL mode Transmitter only responds to addressed command Example smode run cr Output mode RUN smode stop cr Output mode STOP SERI Serial Line Settings Syntax SERI b p...

Страница 40: ...Use in POLL Mode Syntax ADDR aa cr where aa Address 0 99 Example addr cr Address 0 addr 1 cr Address 1 OPEN Temporarily Open Transmitter from POLL Mode to Receive Serial Commands Syntax OPEN nn cr whe...

Страница 41: ...arily in POLL mode In POLL mode command OPEN sets the transmitter temporarily in STOP mode command CLOSE returns the instrument to POLL mode Example Relative humidity calibration is performed at trans...

Страница 42: ...point TD Dewpoint A Absolute humidity X Mixing ratio TW Wet bulb temperature PPM Humid air volume dry air volume PW Water vapor pressure PWS Saturation water vapor pressure H Enthalpy NOTE Only quanti...

Страница 43: ...itter Example time cr Current time is 04 12 39 Enter new time hh mm ss 12 24 00 cr date cr Current date is 2000 01 01 Enter new date yyyy mm dd 2004 06 30 cr NOTE Time and date are cleared to 2000 01...

Страница 44: ...t Quantities and their Metric and Nonmetric Units Quantity Metric Unit Nonmetric Unit RH Relative Humidity RH RH T Temperature C F TDF Dewpoint frostpoint C F TD Dewpoint C F A Absolute humidity g m3...

Страница 45: ...0 pw 12 00 hPa pws 29 91 hPa h 43 2 kJ kg purge cr Purge started press any key to abort send cr 1 S 134 RH 40 2 RH T 24 1 C Td 9 8 C Tdf 9 8 C a 8 8 g m3 x 7 5 g kg Tw 15 7 C ppm 12084 pw 12 10 hPa pw...

Страница 46: ...ample factory default settings cr HMT310 1 07 PRB serial nr A0000000 Calibration 2004 05 07 Cal info Vaisala HEL Output units metric Pressure 1013 25 hPa RS232 settings Address 0 Output interval 0 S B...

Страница 47: ...yntax FIND cr HELP List Commands Syntax HELP cr PRES Set Ambient Pressure for Calculations Syntax PRES aaaa a cr Syntax XPRES aaaa a cr where aaaa a Absolute pressure hPa Command XPRES should be used...

Страница 48: ...750 0617 51 71493 inHg 0 02952999 0 03937008 1 29 921 29 52999 2 036021 atm 0 00098692 0 00131597 0 033422 1 0 98692 0 068046 bar 0 001 0 001333224 0 03386388 1 01325 1 0 06894757 psi 0 01450377 0 019...

Страница 49: ...x ON OFF or EXT ON Short filter of about 15 s results the average value of the last 15 s measurement data OFF No filtering default EXT Extended filter of about 1 min results the average value of the l...

Страница 50: ...ing Scaling and Testing Analog Outputs AMODE Set Analog Outputs 0 4 20 mA Syntax AMODE ch1 ch2 cr where ch1 and ch2 I0 0 20 mA I1 4 20 mA Example amode i1 i1 cr Ch1 output mode 4 20mA Ch2 output mode...

Страница 51: ...TD Dewpoint C F A Absolute humidity g m3 gr ft3 X Mixing ratio g kg gr lb TW Wet bulb temperature C F PPM Humid air volume dry air volume ppm ppm PW Water vapor pressure hPa lb in2 PWS Saturation wate...

Страница 52: ...00 00 g kg ITEST Test Analog Outputs Syntax ITEST aa aaa bb bbb cr The operation of the analog outputs are tested by forcing the outputs to given values The values in the analog outputs can then be me...

Страница 53: ...Serial Output Format on page 39 yyy yyy Value Example aqtest td 30 cr CH1 Td 30 0000 C 12 00000mA CH2 x 2 5304 g kg 4 08097mA The set values remain valid until you give the command AQTEST without a va...

Страница 54: ...sensor gain may decrease gradually due to an interference caused by some particular chemical present in the ambient see Figure 16 on page 53 The sensor polymer absorbs the interfering chemical this r...

Страница 55: ...ocess Automatic Manual Chemical Purge When HMT310 leaves the factory the automatic chemical purge if selected takes place repeatedly with the time intervals set in the factory You can change the inter...

Страница 56: ...l exposure is not likely the interval may be longer It is not recommended to change the other parameters than interval Syntax PUR cr Issue command PUR and type the new interval in minutes and press En...

Страница 57: ...to an interfering chemical Make sure that the temperature of the sensor has come down to normal before starting calibration Before starting chemical purge please note the following The sensor is prot...

Страница 58: ...ve humidity of the measuring environment reaches the RH value set by a user RH limit The user can define the RH sensor heating temperature as well as the duration of the heating After the heating cycl...

Страница 59: ...the predefined temperature The duration of the heating can also be defined After the heating cycle the humidity conditions are checked and a new sensor heating is activated if the predefined conditio...

Страница 60: ...d sealing washer HMT318 0 40 bar 4 MPa for pressurized pipelines ball valve set available The actual pressure in the sampling cell needs to be set to the transmitter by using the serial line command P...

Страница 61: ...Chapter 5 __________________________________________________ Measuring at Overpressure VAISALA____________________________________________________________________ 59 This page intentionally left blank...

Страница 62: ...justed as shipped from factory Typical calibration interval is one year In certain applications it may be advisable to do more frequent checks Calibration needs to be done always when there is reason...

Страница 63: ...instructions see FCRH Relative Humidity Calibration after Sensor Change on page 65 4 Install a new filter on the probe When using the stainless steel filter take care to tighten the filter properly re...

Страница 64: ...information and instructions are available from www vaisala com Addresses of the Service Centers are provided in section Vaisala Service Centers on page 63 Please have the following information on ha...

Страница 65: ...____________ 63 Vaisala Service Centers Vaisala Service Centers perform calibrations and adjustments as well as repair and spare part services See contact information below Vaisala Service Centers als...

Страница 66: ...t is not valid anymore Calibration and Adjustment Commands LI Revert Factory Calibration Syntax LI cr This command reverts only the CRH calibration see calibration instructions starting on page 67 1 R...

Страница 67: ...erformed after a sensor change Follow the more detailed calibration instructions on page 67 but instead of the CRH command use the FRCH command Example frch cr RH 1 82 1 ref 0 cr Press any key when re...

Страница 68: ...ess the adjustment button once see Figure 17 on page 67 2 Issue command LI and enter value 0 for an offset value and value 1 for a gain value 3 Issue command CDATE and set the calibration date Example...

Страница 69: ...e of at least 50 RH Before calibration HMT310 needs to be set to adjustment mode by pressing the adjustment button once see Figure 17 below To return to normal operation mode use command RESET see RES...

Страница 70: ...to stabilize 4 Issue command CRH and press Enter Type C and press Enter a few times to check if the reading is stabilized 5 When the reading is stabilized type the reference humidity after the questi...

Страница 71: ...operly recommended force is 130 Ncm 10 If needed record the calibration information text and date to the memory of the transmitter see CTEXT Set Calibration Information Text on page 65 and CDATE Set C...

Страница 72: ...Ref1 16 0 Press any key when ready T 16 06 Ref2 OK OK indicates that the calibration has succeeded 7 Take the probe out of the reference conditions and replace the filter When using the stainless stee...

Страница 73: ...hapter 7 ___________________________________________________Calibration and Adjustment VAISALA____________________________________________________________________ 71 This page intentionally left blank...

Страница 74: ...UMICAP 180C for applications with chemical purge and or warmed probe Vaisala HUMICAP 180RC for applications with chemical purge and or warmed probe at 15 25 C 1 RH 0 90 RH 1 7 RH 90 100 RH at 20 40 C...

Страница 75: ...g Pressure Ranges Property Description Value HMT311 40 60 C 40 140 F HMT313 80 C 40 80 C 40 176 F HMT313 120 C 40 120 C 40 248 F HMT314 70 180 C 94 356 F 0 10 MPa 0 100 bar HMT315 vapor tight 70 180 C...

Страница 76: ...nector screw joint for cable diameter 4 8 mm Operating voltage 12 35 VDC the maximum operating voltage for device with sensor heating is 24 VDC Power consumption 30 mA with RS 232 Startup time after p...

Страница 77: ...ith Membrane 214848SP Sensors Vaisala HUMICAP 180 general purpose 19279HM Vaisala HUMICAP 180R general purpose HUMICAP180R Vaisala HUMICAP 180L2 for high chemical concentrations 210314HM PT100 sensor...

Страница 78: ...__________________________________________ M210619EN C Dimensions in mm inches Transmitter Enclosure and Mounting Plates 1 2 0507 049 The following numbers refer to the figure above Mounting plate alt...

Страница 79: ...____________________________________________________________ Technical Data VAISALA____________________________________________________________________ 77 Probes HMT311 120 4 72 12 0 47 0507 050 HMT31...

Страница 80: ...__________________________ 78 _______________________________________________________________ M210619EN C HMT314 0507 052 HMT315 12 0 47 13 5 0 53 41 1 61 242 9 53 192 7 56 75 2 95 28 1 10 27 1 06 2 0...

Страница 81: ...Chapter 8 ____________________________________________________________ Technical Data VAISALA____________________________________________________________________ 79 HMT317 0508 009 HMT318 0507 055...

Страница 82: ...t includes a flange a sealing ring a supporting bar and probe attaching part for the probe and screws for attaching the flange to the duct wall Vaisala order codes 210697 for HMT313 and 210696 for HMT...

Страница 83: ...gnificant the supporting bar must be installed as deep in the duct as possible This helps to prevent errors caused by heat conduction in the bar and cable Pressure Tight Swagelok Installation Kits for...

Страница 84: ...Examples of Vapor Tight Installations with Cable Gland RH Probe Installations for HMT313 317 1 3 2 0508 026 Figure 21 Cable Installation with Cable Gland AGRO The following numbers refer to Figure 21...

Страница 85: ...in Figure 22 above is not available from Vaisala and is presented here only as an example of how to achieve a vapor tight installation with HMT313 317 probes Ball Valve Installation kit for HMP318 Th...

Страница 86: ...icates the upper adjustment limit 6 Filter 7 Ball of the ball valve 8 Clasp nut NOTE The probe can be installed in the process through the ball valve assembly provided that the process pressure is les...

Страница 87: ...6 Insert the probe to the fitting body and manually tighten the clasp nut to the fitting body 7 Open the ball valve 8 Push the probe through the ball valve assembly into the process If the pressure i...

Страница 88: ...USER S GUIDE____________________________________________________________________ 86 _______________________________________________________________ M210619EN C...

Страница 89: ...www vaisala com M210619EN...

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