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DMT345 and DMT346 User's Guide - M210762EN-E

1. Het is niet toegestaan de stroomtoevoer module van de transmitter los te koppelen wanneer de stroom aan is Het is niet toegestaan de stroom aan de stroomtoevoer module aan te sluiten als deze niet in een DMT345 346 transmitter is gemonteerd Altijd beschermend aardcontact aansluiten Este producto cumple con la directiva de bajo voltaje 2006 95 EEC La conexi n de la alimentaci n principal al m dulo de alimentaci n s lo puede realizarla un electricista autorizado No desenchufe el m dulo de alimentaci n del transmisor cuando est encendido No conecte la alimentaci n principal al m dulo de alimentaci n cuando no est instalado en el transmisor DMT345 346 Conecte siempre el terminal de protecci n de conexi n a tierra See toode vastab madalpinge direktiivile 2006 95 EEC Voolukaabli v ib vooluallika mooduli k lge hendada ainult volitatud elektrik Arge hendage vooluallika moodulit saatja k ljest lahti kui vool on sisse l litatud Arge hendage voolukaablit vooluallika mooduli k lge kui seda pole DMT345 346 t pi saatjasse paigaldatud Uhendage alati kaitsev maandusklemm Ez a term k megfelel a Kisfesziilts gti villamos term kek ir nyelvnek 2006 95 EGK A h l zati fesz lts get csak feljogos tott elektrotechnikus csatlakoztathatja a t pegys gmodulra A bekapcsolt t vad r l ne csatolja le a t pegys gmodult Ne csatlakoztassa a h l zati fesz
2. Stub RS485 1 Address MM EE Switch Term off l l Term off Common i I l 2 4 wire off DO RS422 off D1 Termination Junction box 1102 027 Figure 35 2 Wire RS 485 Bus Table 8 2 Wire Switch 3 Off RS 485 master Data DMT345 346 _ DG EE TE D 8 When operating in communication mode RS 422 set both switches 3 and 4 to ON position 4 wire wiring is required for RS 422 mode 9 Connect the power and close the cover M210762EN E Chapter 3 CAUTION VAISALA Installation LAN Interface The optional LAN interface enables an Ethernet connection to the transmitter The user can establish a virtual terminal session using a Telnet client program such as PuTTY or by using MODBUS TCP protocol When the LAN Interface is in use serial communication using the RS 232 User Port is disabled The LAN interface module must be installed at the factory when ordering the transmitter or by a Vaisala Service Center Once installed the module is automatically used by the transmitter The physical connection to the network is made to the RJ45 connector on the LAN interface module using a standard twisted pair Ethernet cable 10 100Base T Transmitters with the optional LAN interface are delivered pre installed with a suitable cable and cable gland The LAN interface can use both static and dynamic network settings If the interface is configured to use dynamic settings the network where the LAN
3. n000000nn000n 144 Viewing Counters Using Service bot 144 Disabling MODBUS cccceeeeeeseeeeeeeeseeeenssneeeeeeeeeeeeseeeenes 145 6 M210762EN E VAISALA CHAPTER 6 MAINTENANCE eenegen aE i a aaa aaa a 147 Keriogie Nalptetappg eege deeg 147 NS ANG sake bad alee fests A 147 Changing the Cooling Set Elter 147 iydei ee EE 148 Technical SUPPONE EE 150 BEOgCtGE EHF eege eege 150 CHAPTER 7 CALIBRATION AND ADJUSTMENT cccccceeeeeeeessseeeceeessseeeeeeeeeeeeees 151 Calibr de DEE 151 User Calibration and Adjustment nnnnnn00nnnnnnnnneannnnnnnn 151 Opening and Closing Adjustment Mode aaaannnnaannnnaann 152 Adjustment Information ccccccsseeeeeeeseeeeeeeeeeeeseeeseaeeees 152 CTEXT and CDAVE est Seeerei 152 Two Point Relative Humidity Adjustment 0000 153 Using Display Keypad EE 153 Using senal MING EE 154 e EE 154 One Point Dewpoint Adjustment ccc eeeeeseeeeeeeeeeeeneeeeees 156 One Point Dewpoint Adjustment Using Display Keypad 156 One point Dewpoint Adjustment Using Serial Une 158 Adjusting Temperature cccscsecccsssssseeesseeaseeeseoeesseeesees 159 Adjusting Temperature Using Display Keypad 159 Adjusting Temperature Using Serial Line 000 nnn00000000 160 Ee 160 Adjusting Analog Outputs ccccccssssssssseeeeesecceesnneeeeees 161 Adjusting Analog Outputs Using Display Keypad 161 Adjusting A
4. 102 mm poles 2 Mounting nuts M8 4 pcs 0604 015 Figure 11 Horizontal Pole Installation The following numbers refer to Figure 11 above 1 Mounting nuts M8 4 pcs 31 USER S GUIDE 32 Mounting Rain Shield with Installation Kit Vaisala order code for the rain shield 215109 0604 016 Figure 12 Mounting the Rain Shield with Installation Kit The following numbers refer to Figure 12 above 1 Fasten the rain shield with installation kit to the metal mounting plate with 2 M6 mounting screws provided 2 Fasten the mounting plate with rain shield with installation kit to the wall or to the pole see pole installation 3 Fasten the transmitter to the mounting plate with 4 fixing screws provided Panel Mounting Frame To enable a neat and dirt free embedded installation of the transmitter a panel mounting frame is available as an option Vaisala order code 216038 The frame is a thin flexible plastic frame for the transmitter with adhesive tape on one side The frame is used to hide any rough edges of the installation hole and provide a more finished look Note that the panel mounting frame is not intended to bear the weight of the transmitter and does not include any mounting supports Use the panel mounting frame as follows 1 Use the frame as a template to mark the required size for the installation hole in the panel Cut the hole in the panel Mount the transmitter through the
5. 0605 028 Figure 26 Screw Terminal Block on the Motherboard The following numbers refer to Figure 26 above 1 Supply terminals POWER 10 35 VDC 24 V 2 User port RS 232 terminals 3 Analog signal terminals 43 USER S GUIDE WARNING Make sure that you connect only de energized wires 44 Open the transmitter cover by taking out the four cover screws Insert the power supply wires and signal wires through the cable bushing in the bottom of the transmitter see the grounding instructions in the previous sections Connect the analog output cables to terminals Ch1 Ch1 Ch2 Ch2 Connect the RS 232 user port cables to terminals RxD GND and TxD more about the RS 232 connection in Serial Line Communication on page 76 When wiring the optional modules see the corresponding section for instructions Installation and Wiring of RS 422 485 Interface on page 56 Installation and Wiring of Alarm Relays on page 53 Third Analog Output on page 51 LAN Interface on page 59 WLAN Interface on page 60 Connect the power supply wires to the connectors POWER 10 35 V 24 V and terminals If using AC voltage always connect phase to power supply and 0 to power supply When wiring the power supply module see section Power Supply Module on page 46 Turn on the power The indicator LED on the cover lit continuously during normal operation Close the cover and replace the cover
6. 56 A Wire SWIICh 32 ON beet 57 2 Wir eA SWIC E Olf WEE 58 Observation Periods and ReSOIUtiOn ccccceeeseeeeeeeeeeeeaes 62 Wiring of the Optional 8 Pin CGonnechor 64 Periods for Trend and Max Min Calculations 00000nnn000nnnnn 67 Graph Information Messages 68 Default Serial Communication Settings for User Port 77 Communication Settings for the Service Port cc00 79 IP Settings for the LAN and WLAN Interfaces 000nnn00nn0annn 80 Wireless LAN Gettmgs 83 Measurement Commande noaannnnnnonoeennnnnnnosennnnnensennnneneenene 90 Formatting COmmMands EE 90 Data Recording Commande aannnneeoseennnnnneossnnnnernnsnnnnnennee 91 Wilte Reine 91 Autocalibration Commande seo000annnnosneannnennnnnennnnnnnennennnnnne 91 Calibration and Adjustment Commande 91 Setting and Testing the Analog Outputs cccccsseseeeeeees 91 Setting and Testing the Relays ccccccccsssseeeeceesesseeseeeeeeees 91 OME COMM AN EE 92 FORM Command Modtters 99 Conversion Factors for Pressure Units ccccccssseeeeeeeees 103 Slide BEE 104 Selection Of Output Modes nnnno0001nnnnnnnnnnnnnnennsennnnnnnnnnene 112 Relay State EXAMples icusiric ini a a a 127 Supported MODBUS Varante 137 Error Messages AE 149 Indicator Led Functions ccccccececseeeeeeeecaeeeeeeeseeeeeeeeeaeaess 152 Dewpoint Specifications DMT345 cccccccsse
7. Table 15 IP Settings for the LAN and WLAN Interfaces Automatic configuration If enabled the transmitter will retrieve its network DHCP settings including the IP Address from a server in the network If disabled static network settings are used instead Web configuration If enabled the settings of the interface can be changed using a web browser The configuration page can be accessed by browsing to the IP address of the transmitter IP Address The four part network ID of the transmitter Must be set manually if automatic configuration is not used Example value 192 168 0 222 Netmask Used together with the IP address to determine which network the transmitter is a part of Must be set manually if automatic configuration is not used A common netmask is 255 255 255 0 Gateway IP address of the server that enables the transmitter to access other networks Must be set manually if automatic configuration is not used Example value 192 168 0 1 MAC The MAC address is the unique hardware address of the LAN or WLAN interface Cannot be changed M210762EN E Chapter 4 VAISALA Operation Using Display Keypad You can configure the IP settings of the LAN and WLAN interfaces using the display keypad as follows Press any of the arrow buttons to open the Main Menu Press the arrow button to select Interfaces 3 Press arrow button to select Network settings There will be a delay as the transmitter refreshes th
8. CO T OD gt GE oO ok OD TI or DMP246CS HM46780 U D D Q SS D gt 2 D C D nN O 3 3 r JJ gt lt ZU mr m JJ O C lt lt G gt m Gu GU O ad m Gu 214829 215108 215109 215094 216038 Installation Kit for Pole or Pipeline Rain Shield with Installation Kit DIN Rail Clips with Installation Plate Panel Mounting frame PROBE MOUNTING ACCESSORIES DMT345 Mounting Flange for D13 5mm Probe DMT346 Cooling Set with Installation Flange Plug D13 5mm with Wire Rope Installation Flange for Cooling Set Di lt O A 210696 DMP246CS 21 7 38 217490 O O Z Z m O O Zz O gt D TT m U 19446ZZ 219685 211339 erial Interface Cable USB RJ45 Serial Interface Cable MI70 Connection Cable with RJ45 Connector OUTPUT CABLES for 8 pin connector Connection Cable 5m 8 pin M12 Female Black Female Connector 8 pin M12 with Screw Terminals Male Connector 8 pin M12 with Cable and Adapter 212142 212416 214806SP O E D RS m D C 7 T Z Q gd 214728SP 214729 214780SP 214672SP 11 mm Cable 14mm Cable Conduit Fitting M20x1 5 for NPT1 2 Conduit Dummy Plug M20x1 5 olo o o o OO Oe HI D QIQ ziz NIN OIO x lt X lt wech wesch infin h O IO a ra O wesch SIE 210 5 Sie ein ol xe JJ m 215005 Calibration Adapter for HMK15 to fit the DMT345
9. PRODUCT et ATTEN 19 Introduction to DMT345 and DMT346 ssscessssssseeesees 19 Basic Features and COpions 20 Operating PHN EE 21 Structure of the Transmitter cccccccessseeceeeeseseeeeeeeeeees 22 Probes and Cooling Get 24 CHAPTER 3 INSTALLATION DEE 25 Selecting Lett eege eege eege 25 Mounting the HOUSING ccscsseessesseeeeeeseeeeeeneeseeeseeseenseeesoeas 26 Standard Mounting without Mounting Plate 00000naaaan 26 Wall Mounting with Wall Mounting hm 27 Mounting with DIN Rail Installation hi 30 Pole Installation with Installation Kit for Pole or Pipeline 31 Mounting Rain Shield with Installation kt 32 Panel Mounting Frame 32 DMT345 Probe Mounting cccccssseecssssssseeesceenseeesseeenseeeees 34 Installation With Hiange 34 DMT346 Probe and Cooling Set Mounting ssssss00 35 Description of the Cooling Get 36 Parts of the Cooling Get 37 General Probe and Cooling Set Mounting Instructions 38 Probe and Cooling Set Mounting with Process Shut DONN RE 40 VAISALA USER S GUIDE Probe and Cooling Set Mounting with Process RUDDING EE 40 Removing the Transmitter for Maintenance 40 MV te D 41 Gable Bushing EE 41 Cable Ground goession hentai et ho i taal 42 Transmitter HOUSING Grounding cccccsseeeeeeeeeeeeeeeeeeeeees 43 Signal and Power Supply Wiring cccceecceeeeeseseeseeeeees 43 Connections to a 24 VAC
10. The adjustment is now completed Several AutoCals can be necessary after this adjustment has been performed until the transmitter reaches full accuracy VAISALA 157 USER S GUIDE One point Dewpoint Adjustment Using Serial Line 1 Let the sensor stabilize for at least one 1 hour 2 Press the ADJ button on the motherboard to enable adjustments 3 Use the A 1 command to perform the adjustment A l lt cr gt Example gt a01 IE 3 34 25 C Ref 33 Wait for Purge data OK gt 4 Press the ADJ button on the motherboard inside the transmitter to disable adjustments Several AutoCals can be necessary after this adjustment has been performed until the transmitter reaches full accuracy 158 M210762EN E Chapter 7 Calibration and Adjustment Adjusting Temperature Temperature adjustment in process conditions is possible only with DMT345 Temperature adjustment of DMT346 cannot be performed in process conditions as the DMT346 measures a cooled temperature whereas the reference instrument measures the actual process temperature Adjusting Temperature Using Display Keypad Use preferably the display keypad to adjust the temperature 1 Press the ADJ button on the motherboard to open the ADJUSTMENT MENU 2 Press the arrow button to select Adjust T measurement 3 Select by pressing 1 point or 2 point adjustment Press START to start adjusting 4 Remove the filter from the probe and in
11. 0605 030 Power Supply Module The following numbers refer to Figure 28 above 1 Connect AC mains voltage wires to these terminals 2 Grounding terminal 3 In case the module is not installed in the factory Connect wires from these terminals to the POWER 10 35V 24V terminals of the motherboard 4 5 46 M210762EN E Chapter 3 Installation Installation Disconnect the power 2 Remove the protective plug from the cable gland and thread the wires In case the power supply module is installed in the factory continue with the step 5 3 To attach the module open the transmitter cover and fasten the power module to the bottom of the housing with four screws See the position from section Basic Features and Options on page 20 4 Connect the wires from the terminals of the power supply module marked with and to the terminals POWER 10 35V 24 V on the motherboard of the transmitter 5 Connect the AC mains voltage wires to the power supply module terminals marked with N and L 6 Attach the grounding wire to the grounding terminal on the right hand side of the transmitter 7 Connect the power The LED on the cover of the transmitter is lit continuously during normal operation WARNING Do not detach the power supply module from the transmitter when the power is on WARNING Do not connect the mains power to power supply module when it is not installed in the transmitter WARNING Always con
12. 1284 1 Start up purge on Sensor purge in progress 1285 1 Purge in progress write 1 for manual start AutoCal in progress 1286 1 AutoCal in progress write 1 for manual start Flags 1281 and 1282 are mutually exclusive Some of the configuration registers might not have an effect depending on the instrument model and configuration Other configuration settings are not usually needed and are not available using the MODBUS interface The service cable must be used to change other configuration settings if needed Exception Status Outputs Exception status outputs read with function code 07 tell the summary of the transmitter status as described in Table 50 below Table 50 Exception Status Outputs Output_ Name_ Description 0 0x01 Fault status 1 0x02 Online status 1 Online data available Status information is available also with register access see section Status Registers Read Only on page 183 184 M210762EN E Appendix C MODBUS Reference Diagnostic Sub Functions DMT345 346 support some of the MODBUS diagnostic functions described in the MODBUS Application Protocol Specification V1 1b These diagnostic functions are accessed with function code 08 See Table 51 below for details Table 51 MODBUS Diagnostics Code T ub Functon Name Notes 00 0x00 Return Query Data 01 0x01 Restart Communications Cancels the Listen Only mode Option Data field must be set to 00 00
13. 211302SP probe O cl L m J 170 M210762EN E Chapter 8 Technical Data Dimensions mm inch L A Si gl CG TN TRY Ve D WW Merl Mr KSE Gees w I 8 183 7 20 8 169 6 65 lt z a T 0605 044 Figure 80 DMT345 346 Transmitter Body Dimensions VAISALA 171 USER S GUIDE 183 7 20 116 4 57 106 4 17 0804 035 Figure 81 WLAN Antenna Dimensions 172 M210762EN E Appendix A Example Installation of DMT346 APPENDIX A EXAMPLE INSTALLATION OF DMT346 This Appendix illustrates an example installation of DMT346 transmitter into a process Mineral wool Cuthole and weld flange to process 0605 045 Figure 82 Cooling Set Installation 1 Make around 89 5 0 5 mm hole on the process wall 2 Weld the tube of the mounting flange tightly on the inner metal plate of the process wall If the process wall is more than 125 mm thick a lengthening piece max 50 mm can be welded on the mounting tube for walls thicker than 175 mm see Figure 23 on page 39 3 The cooling set is mounted in a vertical position Tighten the screws properly in order to ensure a thermal contact VAISALA 173 USER S GUIDE 4 Unfasten the locking screws on the cooling bar so that you can push the probe into the bar Push the probe deep enough make sure that the markin
14. 44 Supported Function Codes Function Code Name Notes WEE Diagnostics 43 14 0x2B 0x0E Dead Device Identification Class 0 function codes are enough to access all measurement data and configuration settings of the DMT345 346 transmitter In addition all class 1 and some class 2 commands are also supported giving better compatibility and allowing more efficient communication when needed MODBUS diagnostic and device identification data can be read out only with the function codes dedicated for those purposes 08 and 43 14 VAISALA 179 USER S GUIDE Register Map All data available via the MODBUS interface is grouped in six contiguous blocks of registers as described in Table 45 below Table 45 DMT345 346 MODBUS pi cha Blocks 0001 0068 32 bit IEEE float Measurement data read only 0257 0290 16 bit signed integer Status registers read only Configuration settings The addresses are 1 based decimal MODBUS data model addresses without the first digit e g Oxxxx 1Xxxx 3xxxx or 4xxxx Subtract 1 to get address field values used in MODBUS Protocol Data Unit PDU The register map is the same for all MODBUS function codes For example function codes 03 and 04 return exactly same result as do OI and 02 Function codes 01 and 02 return 0 if the corresponding register has value 0x0000 and 1 if the register is non zero Writing with function codes 05 or 15 effectively writes value 0x0000 or 0x0001 in th
15. A V arrow buttons Confirm your selection by pressing CHANGE 6 Select the quantity by using the arrow buttons Press SELECT to confirm your selection 7 Select Scale lower limit by pressing the A V arrow buttons Press SET to confirm your selection Press OK to confirm your setting 8 Select the upper limit by pressing the A V arrow buttons Use the arrow buttons to set the upper limit value Press SET to confirm your selection Press OK to confirm your setting 9 Press EXIT to return to the basic display AMODE ASEL Use the serial line to select and scale the analog output quantities Check the analog output modes with the AMODE command AMODE lt cr gt Example gt amode Chi OUEPUL rae 0 reread LN ChZ OUCPUL El gt Select and scale the quantities for the analog outputs with the command ASEL Note that the optional quantities can be selected only if they have been selected when ordering the device M210762EN E Chapter 4 VAISALA Operation ASEL xxx yyy zzz lt cr gt where XXX Quantity of channel 1 yyy Quantity of channel 2 ZZZ Quantity of the optional analog output channel 3 Always enter all the quantities for all outputs For quantities and their abbreviations see Table 5 on page 20 Use the ASEL xxx yyy command as shown in the example below when using a device with two analog outputs Example gt asel Cal Tar Low lt lt es EE NC Chl Tdf High lt T0000 Le 2 CHA
16. Alarm Active Multiple alarms can be active at the same time the alarm that was triggered first will be shown on the display The next active alarm is revealed when the currently shown alarm is acknowledged by pressing the OK button Activated alarms are only shown on the screen there are no alarm messages output to the serial line After an alarm has been acknowledged you must refer to the data graphs to see when the measured quantities have exceeded the limits You may use the optional relay outputs as alarm outputs by configuring them separately see section Setting Relay Outputs on page 127 Configuring a Display Alarm Enter the Main Menu by pressing an arrow key on the keypad 2 Use the arrow keys to select Display followed by Alarms to open the Display Alarms menu The Display Alarms menu shows the currently enabled and disabled alarms 73 USER S GUIDE DISPLAT ALARMS C 6 kAlarm 2 disable EXIT 0802 069 Figure 46 Display Alarms 3 Use the arrow keys to select an alarm to configure The alarm editing page opens Changes you do on the alarm editing page will take effect immediately and may cause an alarm to appear on the screen 4 To select a quantity for the alarm press the Change button and select the quantity from the list 5 To modify or remove the alarm limit values move the selection over the Act above or Act below field and press the Set button You will be prompted to Modify or Remov
17. Cooling Set Dimensions in mm The cooling set consists of a cooling element and removable cooling fins The cooling fins are meant to be installed in applications where the process temperature and dewpoint are continuously in the range indicated in Figure 19 on page 37 Measurement Ranges with and without the Cooling Fins However if there is a possibility that the dewpoint is above this range the measurements have to be taken without the cooling fins in order to avoid condensation The flow rate and ambient temperature have an effect on the cooling rate In Figure 19 on page 37 it is assumed that ambient temperature is 25 C When ambient temperature is raised by 10 C the measurement ranges with and without cooling fins rise approximately 6 C Correspondingly every 10 C change in ambient temperature changes the ranges by approximately 6 C It is recommended that after installing the transmitter without the cooling fins the transmitter is allowed to stabilize and then the SSR reading is checked either from the local display or with a terminal connected to an RS line If the SSR reading is below 20 it is recommended that the cooling fins are installed Make sure that the upper limit of the dewpoint measurement range is not exceeded in low temperatures as this would lead to condensation 36 M210762EN E Chapter 3 Installation When measuring temperature dependent quantities make sure that the temperature at
18. Metric Unit Non Metric Unit_ Dewpoint a Tar TDF F Mixing ratio x X mg ob Sensor saturation rate SCH b SE Basic Features and Options DMT345 346 has the following basic features and options Dewpoint measurement with AutoCal and sensor purge features Sensor warming in high humidities Two analog outputs and a serial interface optional third analog output Installation accessories DMT345 mounting flange DMT346 cooling set for high temperature applications User friendly multilingual display option Different sensor protection options and probe cable lengths 2 m 5 m or 10 m Support for MODBUS serial communications protocol USB connectivity for service connections via the optional USB RJ45 cable 20 M210762EN E Chapter 2 Product Overview Optional modules Galvanic isolation for outputs AC mains power supply RS 422 485 module LAN and WLAN interfaces Data logger module with real time clock Additional analog output module Alarm relay module Operating Principle The DMT345 346 transmitter incorporates the Vaisala DR YCAP sensor together with a combined temperature measurement with a PT100 resistive temperature sensor The operating principle of the DRYCAP sensor is based on the changes in capacitance as its thin polymer film absorbs water molecules The DMT345 346 transmitter measures water vapor directly and gives thus accurate results of moisture in the pro
19. Microsoft Corporation in the United States and or other countries License Agreement All rights to any software are held by Vaisala or third parties The customer 1s allowed to use the software only to the extent that is provided by the applicable supply contract or Software License Agreement VAISALA 17 USER S GUIDE Warranty Visit our Internet pages for more information and our standard warranty terms and conditions www vaisala com services warranty html Please observe that any such warranty may not be valid in case of damage due to normal wear and tear exceptional operating conditions negligent handling or installation or unauthorized modifications Please see the applicable supply contract or Conditions of Sale for details of the watranty for each product 18 M210762EN E Chapter 2 Product Overview CHAPTER 2 PRODUCT OVERVIEW This chapter introduces the features and advantages of the Vaisala DRYCAP Dewpoint Transmitters DMT345 and DMT346 Introduction to DMT345 and DMT346 The DMT345 and DMT346 transmitters incorporate the advanced Vaisala DRYCAP technology which enables reliable and accurate dewpoint measurement Both transmitters also feature the AutoCal function which provides excellent long term stability of the measurement The DMT345 is designed for measurement of relative humidity in temperatures up to 180 C The transmitter outputs dewpoint frostpoint Td f mixing ratio x volume concentration
20. Mixing ratio P x 621 99 2 p F VAISALA 175 USER S GUIDE 176 Absolute humidity a 216 68 T Enthalpy h T 273 15 1 01 0 00189 x 2 5 x Py 3 4 The water vapor saturation pressure Pws 1s calculated by using two equations 5 and 6 T where InP ET temperature in K coefficients 0 4931358 0 46094296 x 10 2 0 13746454 x 10 4 0 12743214 x 10 3 5 0 b np i 1 coefficients 0 58002206 x 104 0 13914993 x 101 0 48640239 x 10 1 0 41764768 x 10 4 0 14452093 x 10 6 5459673 S 6 M210762EN E Appendix B VAISALA Calculation Formulas The water vapor pressure is calculated using P Py RH oes d Parts per million by volume is calculated using P ppm oe 8 p aa a Symbols Ta dewpoint temperature C Py water vapour pressure hPa Pws water vapour saturation pressure Pa RH relative humidity x mixing ratio g kg D atmospheric pressure hPa a absolute humidity g m T temperature K h enthalpy kJ kg 177 USER S GUIDE This page intentionally left blank 178 M210762EN E Appendix C MODBUS Reference APPENDIX C MODBUS REFERENCE This appendix describes the MODBUS functions and data of the transmitter Function Codes DMT345 and DMT346 support all MODBUS conformance class 0 and class 1 function codes defined in Open MODBUS TCP Specification Release 1 0 Table
21. Relay test buttons 3 Flat cable pins 4 Indication led for relay 2 or 4 WARNING The relay module may contain dangerous voltages even if the transmitter power has been disconnected Before working on the relay module you must switch off both the transmitter and the voltage connected to the relay terminals WARNING Do not connect the mains power to relay unit without grounding the transmitter 54 M210762EN E Chapter 3 Installation RS 422 485 Interface The RS 422 485 Interface enables communication between an RS 485 network and the DMT345 346 transmitter The RS 485 interface 1s isolated and offers a maximum communications rate of 115 200 bits s For maximum bus length of 1 km use bit rate 19200 b s or less When selecting an RS 232 to RS 485 converter for the network avoid self powered converters as they do not necessarily support the needed power consumption RS 232 User Port on DMT345 346 main board cannot be used and connected when RS 485 module is connected Service port is operating normally ISOLATED RS 422 485 MODULE RS 485 1 1102 023 Figure 33 RS 485 Module The following numbers refer to Figure 33 above 1 Flat cable pins 2 Selection switches 3 Screw terminals for wiring The data lines on earlier versions of the RS 422 485 module are marked A and B instead of D1 and DO When the line is idle D1 has positive voltage compared to DO When connecting the module be pr
22. Service Port c c5 cccccccccsceeseeeeeeeeeseccceeeeeees 79 LAN Communication ssassssnsnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn nnmnnn nnn 79 IFC ONIGUA HON aeaoe a 80 Using Display Keypad c cccccccccsseeeeeeeaeeseeeseeaeeeeeess 81 Using Serial LING eswc aa 82 Os 210762 EN E Wireless LAN CGontouratpon 83 Using Display Keypad A 84 USING senal EE 85 COMMUNICATION Protocol EE 86 Web Configuration for LAN and WI AN 86 Terminal Program Settings ccccccccccessseeesseeeeeeeeseseeeees 87 Opening a Serial USB CGonnechon ees 87 Opening a Telnet Session ANIL AN 89 List of Serial elle e EE 90 Getting Measurement Message from Serial Line 93 Starting Continuous Outfpufting cece ceeeeeeeeeeeeeee eee 93 SE 93 Stopping Continuous Outputting eee eee eeeeeeeeeee eens 93 EE 93 Outputting Reading ONCe s aannnnnnnooneannnnnenennnnnnnnesennnnna 94 Assign an Alias for the SEND Commande 94 Communicating with a Transmitter in POLL Mode 95 OREN EG 95 Eege 95 Formatting Serial Line Message sssssseeneeeennnnnnnnneeeeees 96 PEIME and FDAT EE 96 FO Mittin ised ncadtag a e 97 General Seling S asseu cece tenaveaenewecstewsraiancs 98 Changing Quantities and Units cccecccccceeeeeeeeeeeeeeeeees 98 Using Display Key Pad EE 98 Biel 99 FORM EE 99 UNIR petaen O ra 100 Pressure Compensation Setting cccccccceseecceeeeeeseeeeees 101 Using Display Keypad E
23. Specifications DMT346 Measurement range typical 0 1000 g kg 0 7000 gr lbs 12 of reading Table 40 Operating Environment Specifications Both Models Mechanical durability probes Up to 180 C 356 F for DMT345 Up to 350 C 662 F for DMT346 for transmitter body 40 60 C 40 140 F with display 0 60 C 82 140 F Storage temperature range without display 55 80 C 67 176 F with display 40 80 C 40 176 F Pressure range for probes Slight pressure difference 200 mbar Measured gases Non corrosive gases Electromagnetic compatibility EN61326 1 Electrical equipment for measurement control and laboratory use EMC requirements for use in industrial locations 165 USER S GUIDE Table 41 Inputs and Outputs Specifications Both Models with optional power supply module 100 240 VAC 50 60 Hz Default start up time initial reading after power up full operation after sensor Purge and Approximately 6 min AutoCal Power consumption at 20 C Ui 24 VDC Uour2x0 1V 0 5V 0 10V Max 25 mA lout 2 x 0 20 MA Max 60 mA RS 232 Max 25 mA Display and backlight 20 mA During sensor purge and warming 110 mA max Analog outputs 2 standard 3rd optional Current output 0 20 mA 4 20 mA Voltage output A a V 0 5V 0 10 V 0 Accuracy of analog outputs at 20 C 0 05 full scale Temperature dependence of the analog a ou
24. Table 1 Manual Revisions Manual Code Description M210726EN E May 2011 This manual Applicable from transmitter software version 5 10 onward Added MODBUS protocol Updated serial line command descriptions Updated storage temperature range M210726EN D June 2009 Previous version Added PuTTY terminal application instructions revised description of the MI70 Link software Removed instructions for HyperTerminal Removed Humicap 180L2 sensor option Related Manuals Table 2 Related Manuals Manual Code M010091EN Vaisala DRYCAP Hand Held Dewpoint Meter DM70 User s Guide M210185EN Humidity Calibrator HMK15 User s Guide Documentation Conventions Throughout the manual important safety considerations are highlighted as follows WARNING Warning alerts you to a serious hazard If you do not read and follow instructions very carefully at this point there is a risk of injury or even death CAUTION Caution warns you of a potential hazard If you do not read and follow instructions carefully at this point the product could be damaged or important data could be lost NOTE Note highlights important information on using the product 14 M210762EN E Chapter 1 Safety WARNING CAUTION Recycling VAISALA General Information The DMT345 346 Dewpoint and Temperature Transmitter delivered to you has been tested for safety and approved as shipped from the factory Note the following precautions Ground the pr
25. X Low 2 OOU gkg 2 Ch2 x High 500 200 per gt Analog Output Tests Use the display keypad for testing to test the operation of the analog by forcing the outputs to known values Measure then the values with a current voltage meter Use the display keypad for testing 1 Open the Main Menu by pressing any of the A Tak arrow buttons Select System by pressing the arrow button Select Diagnostics by pressing the arrow button Select Analog output tests by pressing the arrow button Select one of the testing options Force 0 50 100 of scale Press TEST to confirm your selection All outputs are tested simultaneously The actual output value depends on the selected range Gey E 6 Press OK to stop testing Press EXIT to return to the basic display 121 USER S GUIDE 122 ITEST Use the serial line to test the operation of the analog outputs Use the ITEST aa aaa bb bbb command to force the analog outputs to entered values The set values remain valid until you issue the command ITEST without parameters or reset the transmitter ITEST aa aaa bb bbb cc ccc lt cr gt where aa aaa Current or voltage value to be set for channel 1 mA or V bb bbb Current or voltage value to be set for channel 2 mA or V cc ccc Current or voltage value to be set for channel 3 optional mA or V Example gt itest 20 CNL TAT 3 g 20 000 mA ENEE CH2 X 20 000 mA ACC EB gt itest 20 5 Chi Fak J S
26. address and echo settings as the serial port user port session would have These settings can be changed using the display keypad using the serial line user port or service port or on the fly during the Telnet session The display menu path to the Communication Protocol settings 1s Main Menu gt Interfaces Network Interface gt Communication Protocol The commands for changing the settings are SMODE INTV ADDR and ECHO Web Configuration for LAN and WLAN The LAN and WLAN interfaces both have a web configuration page that is accessible using a browser If you have not disabled the page from the network settings you can access it with a web browser at the IP address of the interface When accessing the web configuration page you must first log in Username user Password vaisala The web configuration page provides similar network configuration options as the serial line and the display keypad It also has additional options for advanced users For example there are more options for securing the wireless network If these additional options are used they will appear as custom configurations when viewed from the serial line or the display keypad M210762EN E Chapter 4 VAISALA Operation VAISALA LAN Interface Configuration and Management Home Configuration Network System Management Connections Administration Update Firmware System Information Network Configuration v Ethernet IP Settin
27. buttons to zoom in and out in the graph window Press the lt P arrow buttons move the cursor vertical bar along the time axis The cursor mode allows you to observe individual measuring points The numerical value at the cursor position is shown at the left upper corner The right upper corner shows the time from the present to the chosen moment without the logger module or the date and time at the cursor position when the logger module is installed 67 USER S GUIDE 68 Ifthe optional data logger module is installed you can scroll the cursor off the screen to move to a new point on the time axis The new date will be displayed and the cursor will be centered at the date where the cursor scrolled off the screen T 0 41 DC 2 21 2004 2 0706 030 Figure 42 Graphical Display with Data Logger If the data logger module is installed you can move quickly on the time axis Zoom out move the cursor and zoom back in The time that 1s shown below the graph is adjusted with the current time offset of the transmitter If you change the transmitter s date and time setting the displayed timestamps in the history graph change accordingly For an explanation of the effect of changing the date and time manually see section Data Logger Module on page 61 Table 12 Graph Information Messages T meas error Temperature measurement sensor failure RH meas error Humidity measurement sensor failure Adj mode active Adjustment m
28. d s User Port Settings Default 4800 E 7 1 ADDR 0 255 Set the transmitter address for POLL SC MODBUS modes TT Le and WLAN interfaces for WLAN interface Mode Device Close the Temporary Connection Back to POLL Mode Table 18 Formatting Commands FORM Set the output format of SEND and R commands FST Add the state of AutoCal purge and sensor warming in connection with SEND and R commands like the SEND command M210762EN E Chapter 4 VAISALA Operation Table 19 Data Recording Commands Lists trend log files PLAY 0 24 START END Output recorded data file Start and end times can only be specified if the data logger module is installed The times must be given in the following format yyyy mm dd hh mm ss DSEL Select logged and displayed quantities 1 4 DELETE Delete all data files including the memory of the optional data logger module UNDELETE Recover the deleted files that have not been overwritten Table 20 Purge Commands Purge settings PURGE Start manual purge Table 21 Autocalibration Commands AUTO AutoCal settings AUTOCAL Start manual AutoCal Table 22 Calibration and Adjustment Commands Table 23 Setting and Testing the Analog Outputs scales Table 24 Setting and Testing the Relays RSEL Configure relay settings RTEST Test relays 91 USER S GUIDE Table 25 Other Commands 2 Output thee information about the device gt aan PO
29. for Restart Communications Option Sub Function 01 with data field FF 00 is rejected 0x02 Return Diagnostic Register Non zero if there are active transmitter errors For same error information see status registers 0516 and 0517 The value of the Diagnostic Register is a logical OR of these two status registers Force Listen Only Mode Puts device off line 10 Ox0A Clear Counters and Diagnostic Register cannot be Diagnostic Register cleared r 2 0x02 0x04 0 1 0x0B Return Bus Message Count Total number of messages seen on the bus interface 2 el O LU A 12 Ox0C Return Bus Communication Number of messages with bad MODBUS TCP frame Count responses sent processed 15 OxOF Return Slave No Response Number of MODBUS messages Count received without sending a response This happens for received broadcast messages MODBUS RTU only or when DMT345 346 is in the Listen Only mode Although MODBUS Diagnostics are standardized only for serial line devices DMT345 346 supports the same diagnostic functions also on MODBUS TCP Resetting powering up the transmitter or reselecting the MODBUS mode by serial command or with the user interface resets all MODBUS diagnostic counters and cancels any Listen Only mode VAISALA 185 USER S GUIDE Device Identification Objects DMT345 346 MODBUS conforms to the extended identification level defined in the MODBUS Appl
30. goes out of range or the measurement fails If the measurement of the selected quantity fails or the transmitter loses its power the relay is released 124 M210762EN E Chapter 4 VAISALA Operation Hysteresis Hysteresis function is to prevent the relay switching back and forth when the measured value is near to the setpoint values Relay is activated when the measured value passes the exact value of the setpoint When returning and passing the setpoint again relay is not released before the value reaches the setpoint increased decreased by the hysteresis value Hysteresis should be smaller than difference of the setpoints Example When the active above value is 50 C and the hysteresis value is 2 C relay activates when the relative humidity reaches 50 C As the humidity then decreases relay releases at 48 C gt rsel tdf ts Reri Tart lege GrG Ue we 3 0 Reid Tar Delo w 0 00 TC 2 Redd Tak thyst O00 TE 2 Rede Tar tech OFF 2 son Rel2 Ts above 0 00 C 80 Rel2 Ts below O00 1C 2 60 Rel2 Ts hyse HE E 27 d Rel2 Ts enabl OFF on gt If both setpoints are specified and above setpoint is lower than below setpoint the hysteresis works in the opposite direction that 1s relay is released when the measured value passes the exact value of the setpoint Relay Indicating Transmitter Error Status You can set a relay to follow the operation status of the device By selecti
31. hexdecimals for 64 bit encryption or 26 hexadecimals for 128 bit encryption A WPA key must be 8 63 ASCII characters 8 After setting the wireless network parameters press the Exit button in the Wireless Network Settings menu You will be asked to confirm the new settings Note that when new settings are saved all currently active WLAN connections are disconnected Using Serial Line Use the serial line command WLAN to view or set the wireless network settings If you set an encrypted network type you will be asked to enter the security key With the WEP encryption you must enter the encryption key in hexadecimal 10 hexdecimals for 64 bit encryption or 26 hexadecimals for 128 bit encryption or with plain ASCII characters 5 characters for 64 bit encryption or 13 characters for 128 bit encryption A WPA key must be 8 63 ASCII characters WLAN SSID TYPE lt cr gt where SSID Network name in 1 32 characters TYPE Security type of the wireless network The options are OPEN OPEN WEP WPA PSK TKIP WPA PSK CCMP Examples gt wlan Network SSID WLAN AP Type OPEN gt gt wlan accesspoint wpa psk tkip Network SSID gt accesspoint Type WPA PSK TKIP WPA PSK phrase thegquickbrownfox Save changes Y N y OK gt 85 USER S GUIDE 86 Communication Protocol When a Telnet connection is established via the LAN or WLAN interface the session has the same communication mode run interval poll
32. interface is connected must have a DHCP server that provides the settings The network configuration can be done using the optional display and keypad or by using the service port For instructions see section LAN Communication on page 79 The LAN interface also provides a web configuration interface which you can access by entering the IP address of the LAN interface in the address field of a web browser For instructions on how to verify the current settings and status of the LAN interface see section Device Information on page 105 The LAN interface is designed to be used in trusted network environments trusted corporate LAN or VPN based connection over internet Avoid connecting the transmitter directly to a public network because the device can be attacked by a malicious user through the network 59 USER S GUIDE CAUTION 60 0709 003 Figure 36 LAN Interface Module The following numbers refer to Figure 36 above 1 Flat cable connector 2 RJ45 connector with indicator LEDs for link and activity WLAN Interface The optional WLAN interface enables a wireless Ethernet connection IEEE 802 11b to the transmitter The user can establish a virtual terminal session using a Telnet client program such as PuTTY or by using MODBUS TCP protocol When the WLAN Interface is in use serial communication using the RS 232 User Port is disabled The interface supports Wired Equivalent Privacy WEP and Wi Fi Protected
33. lts get a t pegys gmodulhoz ha az nincs be p tve a DMT345 346 t vad ba Felt tlen l csatlakoztasson f ldel v d kapcsot 49 USER S GUIDE 50 Sis produktas atitinka direktyv d l emos tampos prietais 2006 95 EB Elektros tinkl su energijos tiekimo moduliu sujungti gali tik galiotas elektrikas Niekada nei imkite energijos tiekimo modulio i si stuvo kai maitinimas yra ijungtas Jei energijos tiekimo modulis n ra montuotas DMT345 346 si stuve nejunkite jo elektros tinkl Visada prijunkite prie apsaugin s eminimo jungties Sis produkts atbilst Zemsprieguma direkt vai 2006 95 EEC Str vas piesl gumu var piesl gt pie baro anas avota modula tikai autoriz ts elektri is Neatvienot baro anas avota moduli no raid t ja kad piesl gta str va Nepievienot str vu baro anas avota modulim ja tas nav uzst d ts DMT345 346 raiditaja Vienm r pievienot aizsarg jo u iezem tu termin lu Ten produkt spemia wymogi Dyrektywy niskonapi ciowej 2006 95 EEC Napi cie zasilaj ce powinno zosta pod czone do modu u zasilacza tylko przez wykwalifikowanego elektryka Nie wolno od cza modu u zasilacza od nadajnika kiedy zasilanie jest w czone Nie wolno pod cza napi cia zasilaj cego do modu u zasilacza kiedy nie jest on zamontowany w nadajniku DMT345 346 Zawsze nale y pod cza zabezpieczaj cy zacisk uziemiajacy Tento v
34. of the A Tak arrow buttons 2 Select System press the arrow button 3 Select Menu PIN press the ON button d Enter a PIN code by using the A V arrow buttons Press OK to confirm the setting Now the PIN lock is on and a key symbol is shown in a display 5 Press EXIT to return to the basic display Returning to the menu is possible only by entering the correct PIN code When you want to turn off the PIN lock go to the menu by giving the PIN code and select System Menu PIN press OFF button In case you have forgotten the PIN code open the transmitter cover and press the ADJ button once Wait for a few seconds and the adjustment menu opens Select Clear menu PIN press CLEAR 71 USER S GUIDE You can also disable the keypad completely with serial command LOCK See section Locking Menu Keypad Using Serial Line on page 109 72 Factory Settings Use the display keypad to restore the factory settings This operation does not affect the adjustments Only settings available in the menus are restored 1 Open the Main Menu by pressing any of the A Tak arrow buttons Select System by pressing the arrow button 3 Select Factory settings and press the REVERT button to confirm your selection Press the YES button to reset all settings to the factory defaults See section General Settings on page 98 for a description of the other menu options Display Alarms The Display Alarm feature provide
35. of the service port are 19200 8 1 N 6 Use the SMODE command to enable the MODBUS mode gt smode modbus serial mode gt MODBUS gt T Configure the networking parameters of the interface you are using After transmitter startup it may take a few minutes for the network interface to become available for configuration 142 M210762EN E Chapter 5 VAISALA MODBUS Use the NET command to configure the networking parameters of both LAN and WLAN Interface You can for example enter the command without parameters and enter the settings as prompted gt net DHCP IP address ON O 0 Subnet mask Gr RI 0 O F O 143 154 142 102 O 255 255 0 0 Default gateway BE Web config F Save changes Y N OK gt If you are using the WLAN Interface use the WLAN command to configure the network name SSID and security settings For example N 0 Y gt wlan Network SSID gt NAME NETWORKID Type OPEN WPA PSK TKIP WPA PSK phrase thequickbrownfox Save changes Y N y OK gt For a description of the available settings see section Wireless LAN Configuration on page 83 The MODBUS configuration is now complete Reset or power cycle the transmitter to enable the MODBUS mode and proceed with the installation of the transmitter 143 USER S GUIDE Diagnostic MODBUS Counters DMT345 346 has diagnostic counters that can be used to pinpoint MODBUS problems The counters are alwa
36. one point dewpoint Tas adjustment Before proceeding with the Td f adjustment you must perform the RH adjustment For DMT345 346 the reference dewpoint must be below 25 C 13 F and temperature must be below 40 C 104 F This adjustment is valid only if the measurement or process is in the lower end of the measurement range in very dry See Specifications on page 163 When adjusting the dewpoint refer to the following instructions 1 Press the ADJ button on the motherboard to open the ADJUSTMENT MENU Press the arrow button to select Adjust Tg measurement 3 Select by pressing 1 point Tg adjustment Press START to start adjusting 4 Leave the sensor to stabilize for at least one 1 hour Follow the instructions on the display Tart oC iz Elapsed time 0 01 32 Let the readings stabilize at least 1 h Press READY when stabilized READY 112 GRAPH 0706 043 Figure 75 Following Stabilization 156 M210762EN E Chapter 7 Calibration and Adjustment POINT 1 OF 1 Taste measured 34 25 Tare actual 033 00 C Enter the actual goupoint temperature of the reference used wE EE 0706 044 Figure 76 Proceeding with T Ar Adjustment 5 Enter the actual reference frostpoint temperature The transmitter performs Tq adjustment This may take up to six 6 minutes POINT 1 OF 1 Z SS Purge in progress Z DE CANCEL 0706 045 Figure 77 Completing T a Adjustment 7
37. port settings set using the display keypad are effective immediately 110 M210762EN E Chapter 4 Operation Using Serial Line You can use the serial commands to change view the user port settings even if you are currently connected to the service port VAISALA SERI Use the SERI command to set the communication settings for the user port Changed settings will be activated at next reset or power up SERI b p d s lt cr gt where b Bitrate 110 150 300 600 1200 2400 4800 9600 19200 38400 57600 115200 p Parity n none e even o odd d Data bits 7 or 8 s Stop bits 1 or 2 The settings can be changed one parameter at a time or all parameters at once Example changing all parameters gt SERI 600 N 8 1 600 N 8 1 gt Example changing parity only gt SERI O AGO Or a 111 USER S GUIDE 112 SMODE Use the SMODE command to set the user port start up operating mode SMODE xxxx lt cr gt where xxx STOP RUN POLL or MODBUS Table 29 Selection of Output Modes Mode Measurement Output Available Commande Only with the SEND addr SEND addr and OPEN addr command Other commands available after opening a line to the transmitter using the OPEN command Use with RS 485 buses where multiple transmitters can share the same line MODBUS Must be read from the MODBUS protocol only see transmitter using MODBUS Chapter 5 MODBUS on pag
38. ppm relative humidity RH and temperature T The DMT346 is a high performance instrument for measurement of dewpoint and mixing ratio in temperatures up to 350 C DMT346 also outputs sensor saturation rate SSR and temperature Ts Tsensor Of the cooled Vaisala DRYCAP sensor Because the sensor 1s cooled these values do not represent true process conditions hence they cannot be used for process control Nevertheless they provide a valuable aid for calibration and for checking the cooling effect For quantities measured by DMT345 see Table 3 on page 20 For the optional calculated quantities measured by DMT345 see Table 4 on page 20 For quantities measured and calculated by DMT36 see Table 5 on page 20 VAISALA SEET USER S GUIDE Table 3 Output Quantities for DMT345 Quantity Abbreviation Metric Unit_ Non Metric Unit_ Dewpoint frost point temperature Tas TDF C ES Mixing ratio x xX Log ob Relative humidity RH Temperature T a ar a Table 4 Optional Output Quantities and for DMT345 Quantity CCC Abbreviation Metric Unit_ Non Metric Unit_ Parts per million Ber Dm POI Pma ppmy Absolute humidity a A om Ion Absolute humidity in anne pressure and Gu mt gr ft temperature NTP Wet bulb temperature T TW oo Water vapor pressure P Water vapor saturation E sel Enthalpy h H kJ kg e Difference of T and Tay AT OTC Table 5 Output Quantities for DMT346 Quantity Abbreviation
39. session H Terminal H Window El Connection Specify the destination you want to connect ta Host Name or IP address Port Connection type Raw Gei Telnet Boom Serial Serial amp USB Load save or delete a stored session Saved Sessions Default Settings Close window on exit Aways Never Only on clean exit 0810 071 Figure 57 Opening a Telnet Connection 4 Click the Open button to open the connection window and start using the Telnet session If PuTTY is unable to connect the IP address you entered it will show you an error message instead If this happens check the IP address and the connections restart PuTTY and try again VAISALA 89 USER S GUIDE 90 List of Serial Commands All commands can be issued either in uppercase or lowercase In the command examples the keyboard input by the user 1s in bold type The notation lt cr gt refers to pressing the carriage return Enter key on your computer keyboard Enter a lt cr gt to clear the command buffer before starting to enter commands In the tables below the bold text in the brackets is the default setting Table 17 Measurement Commands Command Description Ro Start the Continuous Outputting Stop the Continuous Outpuiting INTV 0 255 S MIN H Set the Continuous Output Interval for RUN mode SEND 0 255 Output the Reading once SMODE Set the Serial Interface mode STOP RUN POLL MODBUS SERI baud p
40. text in to the adjustment information field First press the adjustment button on the motherboard inside the transmitter M210762EN E Chapter 7 Calibration and Adjustment Example gt ctext AGUS Deo gt not set 602C gt Use the CDATE command to input date to the adjustment information field Set the adjustment date in format YY YY MM DD Example gt cdate Adjust date gt not set 2004 05 21 gt Press the adjustment button on the motherboard inside the transmitter to disable the adjustment function Two Point Relative Humidity Adjustment VAISALA Using Display Keypad Reference humidities must be 0 RH and 30 75 RH A suitable product for the two point RH calibration is for example the Vaisala Humidity Calibrator HMK15 1 Press the ADJ button see Figure 2 on page 23 to open the ADJUSTMENT MENU 2A Select Adjust Ta measurement press button 3 Select 2 point RH adjustment press START At this point the device carries out the chemical purge 4 Remove the filter from the probe and insert the probe in the dry end reference condition 0 RH Press OK POINT 1 OF 2 Put the sensor in the reference humidity 1 Reference humidities must be 0 SRH an 10 20 RH CANCEL 0706 018A Figure 73 Inserting the Sensor in Reference Humidity 1 153 USER S GUIDE 5 Wait at least 30 minutes for the sensor to stabilize Follow the stabilization from the GRAPH displ
41. 0503 045 Figure 60 Current Voltage Switches of Output Modules The following numbers refer to Figure 60 above 1 Current voltage selection output switches from 1 to 2 2 Current voltage range selection switches from 3 to 7 in analog output 1 and 2 3 Switches for service use only Keep in OFF position always 118 M210762EN E Chapter 4 Operation NOTE Only set one mode and one range switch to ON for one output channel The rest of the switches must remain OFF Example 0 5 V voltage output selected for channel 1 and 4 20 mA selected for channel 2 If you have customized the error output setting AERR check that the set error values are still valid after changing the output mode range See section Analog Output Fault Indication Setting on page 122 VAISALA 119 USER S GUIDE Analog Output Quantities The relative humidity and temperature readings are not those of the process itself but the ones measured after the cooling process Therefore they should not be selected as output quantities They are 120 meant to be used in calibration or during installation Use the display keypad to change and scale the analog output quantities 1 Open the Main Menu by pressing any of the A Tak arrow buttons Select Interfaces by pressing the arrow button Select Analog outputs by pressing the arrow button Select Output 1 2 3 by pressing the arrow button ge ee Select Quantity by pressing the
42. 10 gt Resetting the Device Use the serial line to reset the device Use the RESET command to reset the device The user port switches to start up output mode selected with command SMODE M210762EN E Chapter 4 VAISALA Operation Locking Menu Keypad Using Serial Line LOCK Use the LOCK command to prevent the user from entering the menu using the keypad or to lock the keypad completely You can optionally set a 4 digit PIN code for example 4444 If a PIN code has been set the user will be prompted to enter the code when trying to access the menu Entering the code correctly will disable the lock until the user returns back to the basic view LOCK x Lyyyy lt cr gt where X Keypad locking level range 0 2 The options are 0 No lock enables full access 1 Menu locked but graphs are accessible 2 Keypad completely disabled yyyy 4 digit PIN code The code can only be set when keypad locking level is 1 Examples gt lock 1 4444 Keyboard lock gt 1 4444 gt gt lock 1 Keyboard lock 1 gt 109 USER S GUIDE Serial Output Settings The communication settings for the user port can be changed via the serial line or by using the optional display keypad The communication settings for the service port are fixed and not changeable If a communication module LAN WLAN or RS 422 RS 485 Interface has been installed the user port is not accessible Any changes to the settings are appl
43. 43 Figure 78 Dewpoint Measurement Accuracy Graph DMT345 VAISALA 163 USER S GUIDE 164 Table 35 Temperature Specifications DMT345 Measurement range 0 180 C 32 356 F with sensor warming upper range limited by humidity at 80 RH warming is switched on and T reading not actual process 0 4 C at 100 C Pt 100 IEC 751 1 3 class B Table 36 Relative Humidity Specifications DMT345 Measurement range 0 100 RH with sensor warming 0 80 RH Accuracy below 10 RH 10 of reading above 10 RH 1 5 RH 1 5 of reading Table 37 Mixing Ratio Specifications DMT345 Measurement range typical O 1000 g kg 0 7000 gr lbs Table 38 Dewpoint Specifications DMT346 25 100 13 212 F Ty Accuracy 2 C 3 6 F Ty See the accuracy graph in Figure 79 on page 165 Response time 63 90 flow rate 1I min and 1 bar pressure from dry to wet 5s 10 s from wet to dry including auto calibration 45s 5 min M210762EN E Chapter 8 Dewpoint temperature C VAISALA Technical Data 110 100 measurement range without the cooling fins EE a measurement range with the cooling fins 150 200 250 300 350 Temperature of measured gas C 0604 022 Figure 79 Dewpoint Measurement Accuracy Graph DMT346 Table 39 Mixing Ratio
44. A Example Installation of DMT346 on page 173 provides photographs of installating DMT346 transmitter through a process wall The probe should be installed horizontally whenever possible in order to ensure the best possible performance of the cooling set Install the probe according to the following instructions see also Figure 22 on page 39 Make a round 89 5 0 5 mm hole on the process wall 2 Weld the tube of the mounting flange tightly on the inner metal plate of the process wall If the process wall is more than 125 mm thick a lengthening piece max 50 mm can be welded on the mounting tube for walls thicker than 175 mm see Figure 23 on page 39 3 The cooling set is mounted in a vertical position Tighten the screws properly in order to ensure a thermal contact 4 Untasten the locking screws on the cooling bar so that you can push the probe into the bar Push the probe deep enough make sure that the marking hole meets the end of the bar 38 M210762EN E Chapter 3 Installation 5 Lock the probe in place by tightening the locking screws on the pt ZEE EERE EEE as Ee I E E NI LI LI LI LI LI LI LL LL Ir BREE EERE bar sealing material for example mineral wool PROCESS La tnax 350 C tobe EC cooling welded HH sleeve AEE ae ETH DRYCAP sensor 89 5 0 5 O ring FPM protective tube AN e 7 CITT Ny Ah ee N i7 e 2 III VIVA my S ey E
45. AN Settings screen set the network name SSID and security options and exit to save the changes WIRELESS LAN SETTINGS Hame NETHORKID Type WPA PSK TKIP Key passphrase EXIT 1101 036 Figure 69 Wireless LAN Settings 6 Navigate back to the Network Settings menu Select Communication Protocol 7 On the Communication Protocol screen enable the MODBUS protocol Press the EXIT button to save the changes Note that the device address setting is not relevant for MODBUS TCP In the MODBUS mode the transmitter will respond to all valid MODBUS messages with any unit identifier value VAISALA 141 USER S GUIDE COMMUNICATION PROTOCOL Protocol HODBUS TCP RUN interval 2 Device address 52 Echo CHANGE EXIT 1101 034 Figure 70 Communication Protocol 8 The MODBUS configuration is now complete as configuration changes made with the display and keypad are effective immediately Using Serial Line Open the transmitter cover 2 Connect power supply wiring if not using the power supply module and power up the transmitter 3 Connect the USB service cable between a computer and the service port of the transmitter 4 Start the Vaisala USB Instrument Finder program which has been installed on the computer along with the USB service cable driver and check the COM port that the cable is using 5 Open a terminal program and connect to the service port The fixed settings serial line settings
46. Access WPA WPA2 For WEP 64 and 128 bit encryption is supported with open system or shared key authentication WPA is used in the Pre Shared Key PSK mode with either TKIP or CCMP also known as AES encryption Similarly to the LAN Interface the WLAN interface can use both static and dynamic network settings If the interface is configured to use dynamic settings the network where the WLAN interface is connected must have a DHCP server that provides the settings The WLAN interface also provides a web configuration interface which you can access by entering the IP address of the WLAN interface in the address field of a web browser The WLAN interface is designed to be used in trusted network environments trusted corporate LAN or VPN based connection over internet Avoid connecting the transmitter directly to a public network because the device can be attacked by a malicious user through the network M210762EN E Chapter 3 Installation 0802 103 Figure 37 WLAN Interface Module The following numbers refer to Figure 37 above 1 Flat cable connector 2 Connector for antenna cable connected to transmitter cover Attaching the WLAN Antenna The LAN interface module must be installed at the factory when ordering the transmitter or by a Vaisala Service Center Before taking the transmitter into use you must attach the antenna of the WLAN interface into the RP SMA connector on the transmitter cover The locati
47. E 101 Using Buttons on Motherboard ccccccceeseeeeeneeeees 102 Using Senal Line es siesinnee dc cntaslescanscrcandatuaatadiobadacauanans 102 XPRES andi P E 102 Dale and TING syra 103 Using Display Keypad A 103 Using Serial LInG cc cccssceseccesecccseeeseeeseccteeseeeeeees 104 Be Le EE 104 Fr WET EE 105 Device Information EE 105 eene eege 106 LNG EE 107 WER EE 107 Ee ee ee et 108 EE 108 Resetting the Device nenennnnonnnennnnnnsnnnernnensnnrrrsnneesennee 108 Locking Menu Keypad Using Serial Line 0006 109 Beie EE 109 Serial Output ul E 110 Using Display Keypad nn0annnnnoannnonennnnnnennnnnonennnnesennenne 110 Using Serial Une 111 SERU dtnaetset saueduasdnsssmesoateasdcanerpasacasessees 111 SMODE ssrA O ele 112 ADDR A heat eine cies ds sankide ao neateme cnet acudengezectoneeddiese 112 EE 113 Eeer e E 113 e EE 113 Data e e Ti e DE 114 VAISALA USER S GUIDE selecting Data Recording Quantities eee 114 DS EE 114 View Recorded Data ccccccssssccccceeseeeeeeseseeeeeseeseeeeeseas 115 DIR GE 115 PEAY EE 116 Deleting Recorded Files nnnnn00nnnnnnennnnenannnnosnnnnneneenenee 117 UNDELETE E 117 ne tee telen de E 118 Changing Output Mode and Hange 118 Analog Output e Et 120 AMODEIASEE ee 120 Analog Output KEE 121 WR GC EE 122 Analog Output Fault Indication Geitmg 122 PE EE 123 Operation Of Relay Ssss 123 Quantity for Relay OUIDUL isieas
48. E DECK mA A GCps CH2 X x 5 000 mA H 34BD gt Analog Output Fault Indication Setting Factory default state for analog outputs during error condition is 0 V 0 mA Please be careful when selecting the new error value The error state of the transmitter should not cause unexpected problems in process monitoring Use the display keypad to set the analog output fault indication 1 Open the Main Menu by pressing any of the A Tak arrow buttons Select Interfaces by pressing the arrow button Select Analog Outputs by pressing the arrow button Select Output 1 2 3 by pressing the arrow button ak ae ao ke Select Fault indication Press SET to confirm your selection Enter the fault indication value by using the arrow buttons Press OK to confirm your setting This value is outputted if a transmitter error occurs 6 Press EXIT to return to the basic display M210762EN E Chapter 4 Operation AERR Use the serial line AERR command to change the error output AERR Example gt aerr CHT error OUL lt Qua 000V 7 570 Cha Gi ror Out s 0400 07 2 5 0 gt NOTE The error output value must be within a valid range for the output type The error output value is displayed only when there are minor electrical faults such as a humidity sensor damage When there is a severe device malfunction the error output value is not necessarily outputted Operation of Relays Quantity for Relay Output A rela
49. E E EK 4222 Lind mt e max 175 mm mounting flange cooling fe locking screws of the probe M4x6 DIN 916 AISI 316 DT marking hole 40 6 cooling bar channel with mineral wool Figure 22 452 cooling profile to be welded NM 89 5 0 5 0604 024 Installing the Probe through Process Wall NOTE Make sure that the cooling profile does not cover the locking screws lengthening the flange is fixed piece with screws or by spot welding inner plate of the plate ring process wall Sa lt 160 wall thickness Figure 23 VAISALA plate pipe 0604 025 Installing Probe through Thick Walls 39 USER S GUIDE Probe and Cooling Set Mounting with Process Shut Down Complete the entire mounting process as instructed on page 38 Probe and Cooling Set Mounting with Process Running Follow this procedure to reduce the amount of condensation that builds up in the installation hole 1 First mount the cooling element and fins to warm it up tightly plug the hole for the probe in the cooling element for the duration of the warmup period 2 After a few hours complete the installation by installing the probe Removing
50. FTIME FDATE and FST commands described in this section you can use the FORM command with modifiers TIME DATE and STAT See section FORM on page 99 FTIME and FDATE FTIME and FDATE commands will enable disable output of time and date to the serial line To add time to R and SEND outputs press FTIME x FTIME lt cr gt To add date to R and SEND outputs press FDATE x FDATE lt cr gt where X ON or OFF Example gt send RH 16 2 RH T 22 0 TC gt ftime on Form time gt ON gt send 00203356 RH 16 2 SRA T 22 0 E gt fdate on Form date 2 ON gt send 2000 01 01 00 04 08 RH 16 2 RH T 22 0 Q gt 96 M210762EN E Chapter 4 VAISALA Operation FST Use the FST command to include the status of purge sensor warming and AutoCal in output from the SEND and R commands FST x lt cr gt where X ON or OFF default Example gt fst on Form Stacus gt ON gt send d 0 Tdf 0 6 C x 4 0 g kg SSR 22 5 Ts 23 2 iC gt N xxx Normal operation where xxx Probe heat power H Xxx Purge where xxx Sensor temperature C S Xxx Sensor cooling where xxx Sensor temperature C after purge A Xxx AutoCal where xxx Sensor temperature C W XXX Sensor warming where xxx Sensor heat power 97 USER S GUIDE General Settings Changing Quantities and Units To change quantities and units use serial commands or the optional display keypad See
51. Following Stabilization cccccscesseeeescesseeeessceseeeeessceess 156 Proceeding with T ar Adjustment ce eeececeeeeeeeeeeeeeeeeeeeeees 157 Completing T a Adiusiment cece eeccceeeccseesseeeeeeeeseeseeeeeeees 157 Dewpoint Measurement Accuracy Graph DMT345 163 Dewpoint Measurement Accuracy Graph DMT346 165 DM1345 346 Transmitter Body Dimensions saaesssnaaanna 171 WLAN Antenna Dimensions onnaaannnannnannnnnnnnennonnnnnnnonnnnnne 172 Cooling Set Installation ccccccceesseccceeeesseeseeeeeeeesaeeseeeeeeees 173 Insulation with Mineral Woo 174 M210762EN E List of Tables VAISALA Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 Table 10 Table 11 Table 12 Table 13 Table 14 Table 15 Table 16 Table 17 Table 18 Table 19 Table 20 Table 21 Table 22 Table 23 Table 24 Table 25 Table 26 Table 27 Table 28 Table 29 Table 30 Table 31 Table 32 Table 33 Table 34 Table 35 Table 36 Table 37 Table 38 Table 39 Table 40 Table 41 Table 42 Table 43 Table 44 Table 45 Table 46 Table 47 Table 48 Table 49 Table 50 Table 51 Table 52 Table 53 Manual EE 14 eren Eet 14 Output Quantities for DMT345 ccccceccssssessseseeeeeeeeeees 20 Optional Output Quantities and for DMT2Ap eee 20 Output Quantities for DMT346 cc ccccescsssssssseeeeeeeeeeeeeees 20 Connecting Twisted Pair Wires to Screw Terminals
52. IDE 128 ER INFO JE GRAPH 0706 029 Figure 63 Relay Availability Arrow in Figure 63 above shows where enabled relays are listed on the display Activation state shown in black Disabled relays are not shown Use the display keypad to set the relay outputs l AE ee Open the Main Menu by pressing any of the A V lt P arrow buttons Select Interfaces confirm by pressing the arrow button Select Relay outputs confirm by pressing the arrow button Select Relay 1 2 3 4 confirm by pressing the arrow button Select the Quantity confirm by pressing Change Select the Quantity by using the arrow buttons Confirm your selection by pressing Select Press Fault Status when the relay follows the transmitter error Press Change to set the value Select Act above Act below Press SET to confirm your selection If asked select MODIFY if you want to set the setpoint by using the arrow buttons Select REMOVE if you want to remove the setpoint Select Hysteresis Press SET Set the hysteresis by using the arrow buttons Press OK Select Relay enable press ON OFF to enable disable the relay RSEL Use the serial line to select the quantity setpoints and hysteresis or enable disable the relay outputs Issue the RSEL command RSEL g q2 q3 q4 lt cr gt where ql Quantity for the relay 1 or Fault Online q2 Quantity for the relay 2 or Fault Online q3 Quantity for the relay 3 or Fault Online q4
53. Its value is not retained at reset and when set to 0 last value set with PRES is used instead Use the serial line and do the following PRES aaaa a lt cr gt XPRES aaaa a lt cr gt where aaaa a Absolute process pressure hPa M210762EN E Chapter 4 VAISALA Operation Examples gt pres Pressure 1013 00 hPa gt pres 1010 Pressure 1010 00 hPa gt Table 27 Conversion Factors for Pressure Units From e Toha 1 psi psi absolute Example 29 9213 inHg 29 9213 x 33 86388 hPa 1013 25 hPa Date and Time Using Display Keypad If the optional Data Logger Module is installed you can change the time and date using the display keypad Press any of the arrow buttons to open the Main Menu 2 Select System and press the arrow button to confirm your selection 3 Select Date and time and press the arrow button Press the SET button to enter the adjustment mode and use the arrow buttons to select and change the values 5 You can also change the date and time formats that are shown in the graphs The selected formats are only used in graphical display they do not change the formats that are used in the serial communication 6 Press EXIT to return to the basic display 103 USER S GUIDE Using Serial Line To set time enter the TIME command To set date enter the DATE command TIME lt cr gt DATE lt cr gt These time and date settings are shown on the timestamps of PLAY comman
54. LL state adjustment enabled transmitter information text when adjustment enabled addresses HELP List the currently available commands LIGHT Set the display backlight mode LOCK Lock the menu or disable the keypad Reset the device Set time Set time 92 M210762EN E Chapter 4 VAISALA Operation Getting Measurement Message from Serial Line Starting Continuous Outputting R Enter the R command to start the continuous output of measurements Example gt r Tdf 20 6 TC H20 958 ppmV x 0 6 g kg gt r Tdf 20 7 C H20 958 ppmV T 23 8 C RH 3 3 RH gt If a value is too long to fit to the allocated space in the output or 1f there is an error in outputting the quantity the value is displayed with stars You can change the format of the output with the following commands Outputting interval can be changed with the INTV command Output message format can be changed with the FORM command Stopping Continuous Outputting S Use the S command to end the RUN mode After this command all other commands can be used You can also press the Esc button or reset the transmitter to stop the outputting See command SMODE to change the default power up operation mode 93 USER S GUIDE 94 Outputting Reading Once Use the SEND command to output the reading once in STOP mode The output format depends on which parameters the transmitter can output SEND lt cr gt Examples g
55. Measurement Ranges with and without the Cooling Fins 37 Parts of the Cooling Set Dimensions in mm 37 Mounting Flange Dimensions iN mm 38 Installing the Probe through Process Wall 39 Installing Probe through Thick Wale 39 Cable BUSING S EE 41 Grounding the Screen of Electrical CGable 42 Screw Terminal Block on the Motherboard ccc cseeeeeeeees 43 Connections to 24 VAC Power Gupphy 45 Power Supply Mod le ainina aa 46 Galvanic Output Isolation Module 51 Thira Analog QUO U EE 51 Third Analog Output Selection cccccceeeeeeeeeeeeeeseeeeeeeeeeeeaas 52 Relay Module ccccccssssceccceesseceecceeeececseeeeseeesseaseseessaaaeeeess 54 RS 485 Module ccccccsseccecesseeeceeeceeceeceeseeseeesaeseeeseeeeeeeas 55 4 Wire RS 485 Bus Connections Part A 57 2 Wire RS 485 BUS ccccssssececccesseeeccceeseeeecseaeeeeeseaseeeesseaaaes 58 LAN Interface Module 60 WLAN Interface Module A 61 Data eieiei MOO EE 63 Pinout of the Optional 8 Pin CGonnechor 64 BASIC WISP EE 66 Graphical DISDIAY sitecticie t lt Saseenancheteh oe ead tiosets E 67 Graphical Display with Data Logger 68 Main VIEWS sayra I as chia oe ge 69 Alarm Limit Shown on Graph Screen sss sssssseesennrrreeessrerreees 73 Display ALARM ACUIV E 73 IS DIA ALANIS EE 74 Modifying an Alarm En UU 74 Service Port Connector and User Port Terminal on the MOIR GTO O ANG EE 76 Connection Example between PC Serial Port and
56. O 5 Vand0 10 V Storage temperature range 3 pole screw terminal Max wire size R lt 500 ohms 540 ohms Rz 2000 ohms Rz 10 000 ohms 55 80 C 67 176 F 1 5 mm AWG16 167 USER S GUIDE 168 Relay Module Operating temperature range Operating pressure range Power consumption at 24 V Contacts SPDT change over for example Contact arrangement Form C Imax Imax Safety standard for the relay component Storage temperature range 3 pole screw terminal relay Max wire size RS 485 Module Operating temperature range Operating modes Operating speed max Bus isolation Power consumption at 24V External loads standard loads Storage temperature range Max wire size LAN Interface Module Operating temperature range Storage temperature range Operating humidity range Power consumption at 24V Ethernet type Connector Pv4 address assignment Protocols Max number of Telnet MODBUS clients WLAN Interface Module Operating temperature range Storage temperature range Operating humidity range Power consumption at 24V Supported standards Connector IPv4 address assignment Protocols Max number of Telnet MODBUS clients Security 40 60 C 40 140 F 500 1300 mmHg max 30 mA 0 5 A 250 VAC 0 5 A 30 VDC IEC60950 UL1950 55 80 C 67 176 F 2 5 mm2 AWG14 40 60 C 40 140 F 2 wire 1 pair half duplex 4 wire 2 pair full d
57. ONLINE STATUS Relay Output Modes FAULT ONLINE STATUS relays are usually used in conjunction with an analog output to obtain validity information for the output value If transmitter loses its power all status based relays are released similarly to the case of an instrument failure 126 M210762EN E Chapter 4 VAISALA ss Operation Table 30 Relay State Examples Criterion for Transmitter NC C NO C Relay Activation Operation Status Connected Connected E men Measured Tar above 10 C Measured IA below 10 C Tas below 10 C Measured Tar above 10 C Measured Tar below 10 C Measurement OK Ta above 10 C Fault status Error active Measurement live Online status Purge AutoCal or sensor warming active Hysteresis has an effect when relay switching is based on live measurement See section Hysteresis on page 125 Enabling Disabling Relays You can deactivate the relay outputs for example for service purposes of your system Indication Led Operation Relay is activated LED is lit Relay is not activated LED is not lit Setting Relay Outputs When you have only one relay module installed its relays are called relay 1 and relay 2 When you have two relay modules the relays of the module connected to slot MODULE 1 are called relay 1 and relay 2 and relays connected to slot MODULE 2 are called relay 3 and relay 4 127 USER S GU
58. P address ets KEE ME Subnet mask SOO LOO a Oo ew Default gateway 192 168 0 1 Web config gt OFF MAC address 002420 2902Z2ecdZ2 Us Status gt Connected OK gt Wireless LAN Configuration The settings of the WLAN interface are described in Table 16 The current settings can be viewed on the serial line or using the device information display see section Device Information on page 105 CCMP encryption is called AES in some networking products The WLAN interface supports both WPA and WPA2 also known as 802 111 security when either WPA PSK mode is selected If your WLAN network is using some other security method than listed below you must set up a temporary WLAN network with any of these settings and then use the web configuration to set WLAN security settings for the actual network See section Web Configuration for LAN and WLAN on page 86 Table 16 Wireless LAN Settings The service set identifier that is network name of the wireless network to connect to 1 32 characters Security type The security type of the wireless network The options are OPEN OPEN WEP WPA PSK TKIP WPA PSK CCMP All other choices except OPEN require a security key see below Security key The encryption key or passphrase that is used with an encrypted network VAISALA 83 USER S GUIDE 84 Using Display Keypad You can configure the Wireless LAN settings using the display keypad as follows Press any of th
59. Power Gupphy 45 Optional Mpelul es degen Eege 46 Power Supply Module cccccccsssseeseeeeeeeseeseeeeeeeeeseaeeeees 46 JEE odo kc a 47 MM ANU il 48 Galvanic Isolation for Output 51 tArd Analog Tue EE 51 Installation and Wiring s ssseoennenennnennnnonnnensnnnnnsnneesennne 52 Ad BE EN 53 Installation and Wiring s ssseeennenennnesnnnonnnnesnnnnnsnnenennnne 53 Selecting Relay Activation State ccccccccessseeeeeeeeees 53 RS 422 485 Interface 2 5 c cceie cece N 55 Installation and Wiring s snsneennenennnennnnonnnnnsnnnnnsnnensnnnne 56 LAN MEAC EE 59 Ve D neger EE 60 Attaching the WLAN Antenna ss snnnennnnnennennnnnsnneennnnnnne 61 Data Logger Oil TEE 61 BP in GOMNMC eege Green onsets 64 CHAPTER 4 OPERATION HE 65 GETING Stare E 65 DIS DIAY KEY DAG EE 66 Basie Re EE 66 Graphic Histo oesie a 67 Menus and Navigation 69 Changing elanguage 70 ROUWNGING SEWING E 70 Display Backlight Gettng 70 Display Contrast Gettng 71 Keypad Lock kevguard 71 MERLE PIN ele 71 Factory SCMING EE 72 Display Alamms 72 Configuring a Display Alamm 73 MI70 Link Program for Data Handling csscseeseeseeeeeees 75 Serial Line Communication cccceceeseeeeeeeeeeeeeeeeeeeneeeeees 76 User Port COnne ction seerrereis naeta e 77 User Port Operating Mocdes 77 Service Port Connector isiiaea a 78 CONNECTION Cables erriei a 78 Installing the Driver for the UGbBCable 78 Using the
60. Quantity for the relay 4 or Fault Online M210762EN E Chapter 4 VAISALA CO lerrtion Factory setting All relays disabled Use the quantity abbreviations presented above See Table 5 on page 20 Example of window limit switch Selecting relay 1 to follow dewpoint measurement and relay 2 to follow sensor temperature measurement Two relay setpoints are set for both relays gt rsel tdf ts Rell Tdf above 70 00 IC 50 Rell Tdt below 30 Ee Ek TaT BYS 2e00 Ee e Rell Tdf enabl ON on Rel2 Ts above 140 00 C 140 Rel2 Ts below 80 Rel2 Ts hyst ZOO ME 22 Rel2 Ts enabl ON on gt Example of normal limit switch Selecting relay to follow sensor saturation rate and relay 2 to follow sensor temperature One setpoint is chosen for all the outputs gt rsel ssr ts Rell SSR above 50 000 2 2 70 Rell SSR below 7 Rell SSR hyst 2400 7 2 Rell SSR enabl ON on Rel2 Ts above 80 00 C 140 Rel2 Ts below 60 00 C Rel2 Ts hyst KEE EGE Se SZ Rel Ts enabl ON on gt Example of using relay as fault alarm Selecting relay 1 to follow the fault status and relay 2 to follow the temperature measurement gt rsel fault ts Rell FAUL above Rell FAUL below Rell FAUL hyst Rell FAUL enabl ON on Rel2 Ts above 140 00 C 140 Rel2 Ts below 8000 C 2 80 Rel2 Ts hyst ZOO CN Zz Rel2 Ts enabl ON on gt 129 USER S GUIDE 130 Testing Operation of Re
61. SCF EE 77 Network Interface Men 81 Ier ei left el RO DEET 81 Wireless LAN SetlingS eege 84 USER S GUIDE Figure 53 Figure 54 Figure 55 Figure 56 Figure 57 Figure 58 Figure 59 Figure 60 Figure 61 Figure 62 Figure 63 Figure 64 Figure 65 Figure 66 Figure 67 Figure 68 Figure 69 Figure 70 Figure 71 Figure 72 Figure 73 Figure 74 Figure 75 Figure 76 Figure 77 Figure 78 Figure 79 Figure 80 Figure 81 Figure 82 Figure 83 Entering Network GG eeEERERNEESKREEEEERRRESEEEREEEEEREEREEEER KEEN 84 Selecting the Wireless Network Tvpe 84 Web Configuration Interface for WLAN nnnnnnnnn0annnnnonneaanennnne 87 Opening a Serial Connection criin aa E 88 Opening a Telnet CGonpechon 89 Pressure Set Buttons on Motherboard cccccceseeeeeeeeeeees 102 Device Information on Display 105 Current Voltage Switches of Output Modules c6 118 Measurement Based Relay Output Modes 124 FAULT ONLINE STATUS Relay Output Modes 126 Relay Av alll ability vrana ied ele naverea erator 128 Following AutoCal on the Deplay 132 SEhSOF PUGS SENI EE 133 Performing Sensor PUG auian a 134 Serial Interface SettingS ceden e a 139 HEEM eebe aa a a 141 Wireless LAN Settings EE 141 Communication Protocol WEE 142 MODBUS GOUIE EE 144 Error Indicator and Error Message ccseeeeeeeeeeeeeeeeeeeeees 148 Inserting the Sensor in Reference Humidity 7 153 Waiting for Readings to Giabilze cc ceeeececeeeeseseeeeeeeeeees 154
62. T Use the UNIT command to select metric or non metric output units and change the unit for the H2O quantity UNIT x lt cr gt where x Unit system to be used Options are M metric units N non metric units UNIT H20 y lt cr gt where y Unitto be used for H20 Options are PPMV parts per million by volume PPMW parts per million by weight This command changes both the serial output and display units to either metric or non metric units When you want to output both metric and non metric units simultaneously on the display select the display units 100 by using the display keypad Examples gt unit m Output units metric gt gt unit h2o ppmv H2O UNICS 2 EENEG gt M210762EN E Chapter 4 Operation Use the MOL MOLI command to view set mole weight parameter that will be used in calculating H20 ppmw Pressure Compensation Setting The pressure has an effect on humidity calculations and accuracy Therefore accurate calculations can be achieved only when the process pressure is taken into consideration If you are using mixing ratio as an output quantity it is recommended that you make the pressure compensation setting Note that conversions from mmHg and inHg are defined at 0 C and for mmH 0O and inH2O at 4 C Pressure compensation is intended to be used in normal air only When measuring in other gases please contact Vaisala for further information Fixed pressure compensati
63. TE User port cannot be used when the RS 485 module is connected User Port Operating Modes When the transmitter is powered up it will behave according to its configured operating mode In STOP mode the transmitter outputs the software version and the command prompt if echo is on In RUN mode a measurement output starts immediately In POLL or MODBUS mode the transmitter does not output anything after power up For a description of the modes see section SMODE on page 112 RS 232 User Port cannot be used when a communication module LAN WLAN or RS 422 485 Interface has been installed VAISALA 7 USER S GUIDE 78 Service Port Connection Connection Cables To connect to the service port you need a suitable cable with an RJ45 connector Depending on the connections of your PC you can either use the Serial Connection Cable optional accessory 19446ZZ or the USB RJ45 Serial Connection Cable optional accessory 219685 The USB cable enables you to connect the transmitter to a PC via a standard type A USB port Note that the USB cable does not enable high speed data transfer since the bit rate is limited by the serial interface of the service port Installing the Driver for the USB Cable Before taking the USB cable into use you must install the provided USB driver on your PC The driver is compatible with Windows 2000 Windows XP Windows Server 2003 and Windows Vista l Check that the USB cable is n
64. TU Serial MODBUS interface of the transmitter does not work with baud rates 115 150 and 300 b s 8 Use the ADDR command to set the MODBUS address of the transmitter For example to set the MODBUS address to 52 issue the following command gt addr 52 You must set a non zero address or MODBUS RTU will not work 9 The MODBUS configuration is now complete Reset or power cycle the transmitter to enable the MODBUS mode and proceed with the installation of the transmitter and the wiring of the serial interface 140 M210762EN E Chapter 5 MODBUS Enabling Ethernet MODBUS In addition to enabling the MODBUS protocol in the device MODBUS TCP needs the following software settings IP address subnet mask and default gateway address Also network name SSID and security settings must be configured if wireless network is used Using Display Keypad Optional 1 Open the Main Menu by pressing any of the V A lt P arrow buttons Navigate to Interfaces gt Network Settings IP Configuration On the IP Configuration screen set the network configuration settings and exit to save the changes IP CONFIGURATION C Automatic conf DHCP IP addr 143 154 142 102 Hetmsk 295 205 0 0 Gatew 0 0 0 0 Hac 00 40 90 2c 31f 5e CHANGE EXIT 1101 034 Figure 68 IP Configuration 4 Navigate back to the Network Settings menu If you are using the WLAN interface select Wireless LAN Settings 5 On the Wireless L
65. Table 5 on page 20 for available quantities Only the quantities selected when ordering the device can be selected as an output quantity Using Display Keypad Use display keypad to select the display output quantities 1 Open the Main Menu by pressing any of the A Tak arrow buttons Press the arrow button to select Display Press arrow button to select Quantities Select the quantity by using the A V arrow buttons Confirm the selection by pressing SELECT You can select 1 4 display quantities at a time 5 Press EXIT to return to the basic display To select display units 1 Open the Main Menu by pressing any of the A Tak arrow buttons Press the arrow button to select Display 3 Use the A Warrow buttons to select Units Confirm the selection by pressing the right hand arrow button 4 Use the AT arrow buttons to select display units Confirm the selection by pressing CHANGE The unit changes from metric to non metric or the other way round 5 Press EXIT to return to the basic display Changing the units by using the display keypad has no effect on the serial output units 98 M210762EN E Chapter 4 Operation Using Serial Line Use the serial line command FORM to change the format and the command UNIT to select metric or non metric output units FORM Use the serial line command FORM to change the format or select a certain quantities for the output commands SEND and R FORM x lt
66. VAISALA USER S GUIDE Vaisala DRYCAP Dewpoint Transmitters DMT345 and DMT346 M210762EN E PUBLISHED BY Vaisala Oy Phone int 358 9 8949 1 P O Box 26 Fax 358 9 8949 2227 FI 00421 Helsinki Finland Visit our Internet pages at http www vaisala com Vaisala 201 1 No part of this manual may be reproduced in any form or by any means electronic or mechanical 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 Please observe that this manual does not create any legally binding obligations for Vaisala towards the customer or end user All legally binding commitments and agreements are included exclusively in the applicable supply contract or Conditions of Sale Table of Contents CHAPTER 1 GENERAL INFORMATION cient i Rhee a nennen 13 About This Manual ssena 13 Contents of This Manual 13 Version Information BE 14 Related Manual anran a 14 Documentation CONVENTIONS ccccccsseeeeecseseeeeeeeaeeseeees 14 DAL OLY E 15 ESD Proteo EE 15 FROG Y CINING EE 15 Regulatory Compliancess cccccssssseseeeeeeesssseeeeeeeeeeeeeeeees 16 EU Declaration of CGonformmy 16 Transmitters with LAN or WLAN Interface 16 Transmitters with WLAN Interface oaannnannnannnnannannnnannnanne 17 EENEG 17 EEGEN geeb 17 LICENSE Agreement E 17 Warranty EE 18 CHAPTER 2
67. allation NOTE When the temperature difference between the process or duct and the surroundings is large the probe must be installed as deep in the process or duct as possible This prevents errors caused by heat conduction in the probe cable When the DMT345 346 is installed in a process with a pressure differing from the selected operating pressure at the time of ordering please enter the pressure value of the process into the transmitter memory You can enter the value in the following ways using the display keypad option using the buttons on the motherboard using the serial line using the MODBUS protocol See section Pressure Compensation Setting on page 101 If you are using MODBUS see section Configuration Registers on page 183 DMT346 Probe and Cooling Set Mounting 0604 020 Figure 17 DMT346 Probe Dimensions in mm The following numbers refer to Figure 17 above 1 2 Stainless steel grid Cable length 2 m 5 m or 10 m VAISALA 35 USER S GUIDE 27 9 Description of the Cooling Set 304 164 112 5 sintered filter fixed on top of the cooling set cooling element LO OO CO iZ A ell S ei e E Ke RE EE IN 1 SENG d 125 mounting cooling fins flange Figure 18
68. ample to return the transmitter to the RUN mode where the measurements are output at regular intervals issue the following command through the service port gt smode run Alternatively you can enter the Main Menu using the display keypad option and change the mode from the Interfaces submenu The other communication settings of the output interface User Port LAN interface or WLAN interface will remain as configured but the MODBUS protocol will be disabled 145 USER S GUIDE This page intentionally left blank 146 M210762EN E Chapter 6 Maintenance CHAPTER 6 MAINTENANCE This chapter provides information that is needed in basic maintenance of the product Possible error states and situations their probable causes and remedies are described in this chapter This chapter also contains contact information for Vaisala Technical Support Periodic Maintenance Cleaning Clean the transmitter enclosure with a soft lint free cloth moistened with mild detergent Changing the Cooling Set Filter 1 Turn the filter counter clockwise to remove it 2 Install a new filter on the cooling set and tighten it New filters can be ordered from Vaisala see Available Options and Accessories Table 43 on page 170 VAISALA 147 USER S GUIDE 148 Error States In error state the affected quantities are not measured and the output is shown as follows Analog channel outputs 0 mA or 0 V you can use the serial line comm
69. analog outputs Clear graph memories i gt bAdjustment info Factory settings 0706 011 Figure 43 Main Views Some menu items such as Relay outputs in the Interfaces menu are only shown if supported by the transmitter and the installed options 69 USER S GUIDE Changing the Language l Go back to the basic display by keeping the right hand LZ button pressed for four seconds Open the Main Menu by pressing any of the V A ak buttons Scroll to the System menu option and press the button The menu option is indicated with the wrench A symbol Scroll to the Language menu option and the left hand LZ button The menu option is indicated with the flag H symbol Select the language with the V A buttons and confirm the selection by pressing the left hand LZ button Press the right hand LZ button to exit to the basic display Rounding Setting Round off one decimal by using the Rounding function The default setting 1s rounding on Rounding has no effect on quantities without decimals l Open the Main Menu by pressing any of the A V lt P arrow buttons Select Display and confirm by pressing the arrow button Select Rounding and press ON OFF button Press EXIT to return to the basic display Display Backlight Setting As a default the display backlight is always on In the automatic mode the backlight stays on for 30 seconds from the last press of the button When pressing any button the light t
70. and AERR or display keypad to change this fault indication value see section Analog Output Fault Indication Setting on page 122 Serial port outputs stars instead of measurement data Display shows instead of measurement data Cover LED is blinking Error indicator is shown on the display mE E GH Sa La C A ERROR E2 H20 past unacknowledged me Ca ES ES DDR Humidity sensor open circuit H INFO j GRAPH Figure 72 Error Indicator and Error Message 0706 017 1103 069 Number refers to Figure 72 above 1 Error indicator The error indicator disappears when the error state 1s over and you have checked the error message Press the INFO button to display the error message You can also check the error message via the serial interface by using the command ERRS In case of constant error please contact Vaisala Technical Support M210762EN E Chapter 6 Maintenance Table 32 Error Messages Error Code Error Message Action O ee Check the integrity of the humidity probe malfunction and the probe cable Clean the probe contaminants and the probe cable Check the integrity of the humidity probe E5 Temperature measurement and the probe cable Clean the probe contaminants Internal transmitter failure Remove the E9 Checksum error in the internal transmitter and return the faulty unit to configuration memory Vaisala Service EI Internal EEPROM read error E11 In
71. ay Press EXIT to return to the previous display 6 Press READY when stabilized Enter the reference value by using the arrow keys pu 4 E T 25 69 C 0 07 48 Let the readings stabilize Press READY when stabilized READY GRAPH 0706 019B Figure 74 Waiting for Readings to Stabilize Now proceed to the adjustment at the wet end reference condition 30 75 RH and carry out the procedure as described in the previous items 7 Press YES to confirm the adjustment Press OK to return to the adjustment menu 8 Before closing the adjustment mode feed the adjustment information into the device see section Adjustment Information on page 152 Press EXIT to close the adjustment mode and return to the basic display Using Serial Line Reference humidities must be 0 RH and 30 75 RH A suitable product for the two point RH calibration is for example the Vaisala Humidity Calibrator HMK15 1 Connect the DMT345 346 to a PC See section Serial Line Communication on page 76 Open a terminal program Carry out the chemical purge 3 Press the ADJ button Remove the filter from the probe and insert the probe in the dry end reference conditions O RH 5 Issue the FCRH command and press Enter FCRH 6 Wait at least 30 minutes for the sensor to stabilize 7 Press Enter a few times to check if the reading is stabilized 154 M210762EN E Chapter 7 Calibration and Adjustment 8 When the read
72. ce On the Serial Interface settings screen Enable the MODBUS protocol Change the baud rate and parity if necessary Set the MODBUS device address SERIAL INTERFACE Bit rate 19700 b s Serial format 8 H 1 Device address 5 Echo CHANGE EXIT 1101 033 Figure 67 Serial Interface Settings After changing the settings press the EXIT button The MODBUS configuration is now complete as configuration changes made with the display and keypad are effective immediately Using Serial Line Open the transmitter cover Connect power supply wiring if not using the power supply module and power up the transmitter Connect the USB service cable between a computer and the service port of the transmitter Start the Vaisala USB Instrument Finder program which has been installed on the computer along with the USB service cable driver and check the COM port that the cable is using 139 USER S GUIDE 5 Open a terminal program and connect to the service port The fixed settings serial line settings of the service port are 19200 8 1 N 6 Use the SMODE command to enable the MODBUS mode gt smode modbus Serial mode MODBUS gt 7 Ifnecessary use the SERI command to check and or change the serial interface settings for the User Port For example to set the User Port serial settings to 19200 N 8 1 issue the following command gt seri 19200 N 8 1 The number of data bits must always be 8 for MODBUS R
73. cess In DMT346 the sensor is cooled down with a cooling set which makes it possible to use a polymer sensor in very high temperatures for example 100 350 C With this technique no complicated sampling systems are needed The cooling set is thermally isolated from the process itself The temperature of the sensor is cooled down which increases the sensor saturation rate Sensor saturation rate and temperature are then measured and the transmitter calculates the dewpoint and the mixing ratio on the basis of those readings Note that for DMT346 SSR and temperature values do not represent the process itself as they are measured after cooling Dewpoint and mixing ratio however are independent of temperature and remain unchanged The dewpoint measurement range is 25 100 C VAISALA 21 USER S GUIDE 22 Structure of the Transmitter 1104 001 Figure 1 Transmitter Body The following numbers refer to Figure above Signal powering cable gland Cable gland for optional module or WLAN antenna connector Cable gland for optional module Cover screw 4 pcs Display with keypad optional Cover LED Nm BWN rt lI M210762EN E Chapter 2 Product Overview Figure 2 0604 006 Inside the Transmitter The following numbers refer to Figure 2 above 1 AUN O D I zl ANA VAISALA Service port RS 232 Dip switches for analog output settings Power supply and signal wirin
74. cr gt where x Formatter string Formatter string consists of quantities and modifiers If no formatter string is entered the command will display the currently active formatter string Note that the hash symbol is shown as a backslash when viewing the current formatter string When selecting the quantity use the abbreviations of the quantities presented in Table 5 on page 20 when issuing the command The modifiers are presented in Table 26 on page 99 Table 26 FORM Command Modifiers Modifier Description x y ft r n Special character code xxx decimal for example 027 for ESC Transmitter status in 7 character field for example N 0 no heating h 115 probe heating active power 115 255 H 159 0 purge heating active temperature 159 C S 115 0 purge cooling active temperature 115 C X 95 0 sensor heating active temperature 95 C SN TIME DATE OK encoded hexadecimal notation C Modulus 65536 checksum of message sent so far ascii encoded hexadecimal notation 4 X NMEA xor checksum of message sent so far ascii encoded hexadecimal notation S CS VAISALA 99 USER S GUIDE Example gt form SSR 4 2 ssr U5 t Ts ts U3 r n OK gt send SSR 22 51 Tem 2301476 gt Command FORM will return the default output format The default output format depends on the device configuration gt form OK gt send Tdf 0 5 C x 4 0 g kg SSR 22 4 Ts 23 1 C gt UNI
75. ct information of Vaisala Service Centers see www vaisala com services servicecenters html M210762EN E Chapter 7 Calibration and Adjustment CHAPTER 7 CALIBRATION AND ADJUSTMENT This chapter provides you with instructions on how to calibrate and adjust Vaisala DRYCAP Dewpoint Transmitters DMT345 and DMT346 Calibration DMT345 and DMT346 are fully calibrated and adjusted as shipped from the factory The typical calibration interval is one year Calibration must always be done when there is reason to believe that the device is not within the accuracy specifications It is recommended that the device should be sent to a Vaisala Service Center for calibration and adjustment For contact information of Vaisala Service Centers see www vaisala com services servicecenters html If the process is not shut down for removing the transmitter for calibration the hole for the probe in the cooling set must be plugged otherwise there 1s a risk of water condensing inside the cooling pipe in overpressurized processes User Calibration and Adjustment When adjusting DMT345 or DMT346 the reading of the transmitter 1s changed to correspond to the reference value After the adjustment the original calibration certificate shipped with the product is no longer valid The following adjustments are possible Two point relative humidity adjustment QOne point dewpoint adjustment QOne point temperature adjustment Two point
76. ctory continue with the step 5 2 To attach the module open the transmitter cover and fasten the relay module to the bottom of the housing with four screws See the position in Figure 2 on page 23 3 When the mains power is in use attach the grounding wire to the grounding terminal 4 Connect the flat cable between the relay module and the motherboard s pins MODULE 2 or MODULE 1 5 Take out the protective plug from the cable gland and thread the relay wires 6 Connect the wires to the screw terminals NO C and NC For installations in the USA If your transmitter has both the relay module and a LAN or WLAN module the maximum voltage you are allowed to connect to the relay module is 50 V VAISALA Selecting Relay Activation State The middlemost C terminal and either one of the terminals NO NC shall be connected The polarity can be freely selected Normally open Common relay Normally closed Relay NOT activated C and NC outputs are closed NO is open Relay IS activated C and NO outputs are closed NC is open Connect the power and close the cover For instructions on how to operate the relay for example selecting quantity for the relay output and setting the relay setpoints see section Operation of Relays on page 123 53 USER S GUIDE G8 8 fo 0605 032 Figure 32 Relay Module The following numbers refer to Figure 32 above 1 Indication led for the relay 1 or 3 2 _
77. d When you want to include time and date in the R and SEND commands use the FTIME and FDATE commands Example gt time Time ee Ns eee a4 eo gt date Date ZOO 7 S0525 5 22 If the optional Data Logger Module is not installed time and date available on the serial ports only are cleared to 2000 01 01 00 00 00 at reset or at power failure 104 Data Filtering The averaging data filter calculates a average over a certain period of time The lowest measurement noise is achieved with the extended filtering There are three filtering levels available Table 28 Filtering Levels Setting Eleng Level No filtering ooo O No filtering ON default Standard short filtering about 15 s moving average EXTENDED Extended filtering default 1 min average Use display keypad to set the filtering level 1 Open the Main Menu by pressing any of the A V lt P arrow buttons Select Measuring by pressing the arrow button 3 Select Filtering and press CHANGE to confirm your selection Select Off Standard Extended and press SELECT to confirm your Selection 5 Press EXIT to return to the basic display M210762EN E Chapter 4 VAISALA Operation FILT Set the filtering level FILT xxx lt cr gt where Xxx OFF ON or EXT default ON Device Information Use the display keypad or the serial line to display the device information Press the INFO button in the basic display to see the follo
78. deletion of the recorded files is not necessary in normal use To delete the data files using the keypad display 1 Open the Main Menu by pressing any of the A V lt P arrow buttons 2 Select System by pressing the arrow button 3 Select Clear graph memories by pressing the CLEAR button Press the YES button to confirm the selection This function clears the entire data history of the transmitter including VAISALA all graphs and the content of the optional data logger module UNDELETE Similarly to the DELETE command the UNDELETE command is used without any arguments It will recover all deleted data that has not been overwritten yet 117 USER S GUIDE Analog Output Settings The analog outputs are set in the factory according to the order form In case you want to change the settings follow these instructions Changing Output Mode and Range Both output channels have their own dip switch module with 8 switches see the position in Figure 2 on page 23 dip switches for analog output settings 1 Select the current voltage output switch ON either of the switches 1 or 2 2 Select the range switch ON one of the switches from 3 to 7 Current mA ite a Voltage Vv aT 0 20 MA P L 4 20mA E O OIV P 0 5 V 0 10 V OFF fete a ch Current mA VW T Voltage V E l D A0 mA E E i 4 20 mA BE K be i 0 1 V 0 5 V oiov BR S S ANALOG OUTPUT 2
79. e protocol 137 Selected output mode will be activated at next reset or power up ADDR Use the ADDR command to set the device address of the transmitter Addresses are required for POLL mode and MODBUS mode serial MODBUS ADDR aa lt cr gt where aa Device address of the transmitter range 0 255 default 0 Example changing the transmitter address from 0 to 52 gt addr Address lt 0r 2 52 gt M210762EN E Chapter 4 VAISALA Operation INTV Use the INTV command to set the RUN mode output interval The time interval is used only when the RUN mode is active INTV xxx yyy lt cr gt where Xxx Delay range 1 255 yyy Unit S MIN or H Example setting the output interval to 10 minutes gt intv 10 min Output interval 10 min gt Setting RUN output interval to zero enables the fastest possible output rate SDELAY With the SDELAY command you can set delay response time for user port or view currently set delay value Adjusting the delay may be needed when half duplex communication typically two wire RS 485 is used The delay value corresponds to tens of milliseconds for example 5 0 050s minimum answer delay The value can be set between 0 254 Example gt sdelay Serial delay z 0 2 LO gt sdelay Serial delay O ECHO Use the ECHO command to set the user port echo The command either enables or disables echo of characters received ECHO x lt cr g
80. e transmitter is turned on the first time the language selection window opens Select the language with A V arrow buttons and press the SELECT button the left hand LZ button The pressure has an effect on humidity calculations and accuracy Therefore accurate calculations can be achieved only when the ambient pressure is taken into consideration See section Pressure Compensation Setting on page 101 for instructions on how to set the pressure Start up time for DMT345 346 transmitter is in total about 6 minutes The outputs serial and analog are activated 3 seconds after powering up the transmitter If the data logger module is installed the it may take up to 18 seconds for the outputs to be activated In addition 10 seconds after the measurement the outputs will freeze for about 6 minutes due to the sensor self diagnostics procedure Sensor Purge and AutoCal The frozen output value will be the value the transmitter reached during the 10 seconds of measurement After the self diagnostics procedure the outputs are operational again VAISALA 65 USER S GUIDE Display Keypad Basic Display Display shows you the measurement values of the selected quantities in the selected units You can select 1 4 quantities for the numerical basic display see section Changing Quantities and Units on page 98 INFO 4 Gi l GRAPH 0605 036 Figure 40 Basic Display The numbers refer to Figure 40 above l INFO shortcut butt
81. e Ze Ohare ae e HORE 3 SE SRE F Example with data logger module installed gt pur Interval Purge Interval Next Purge date Next Purge time ON 2 Power up Purge Duration Settling Temperature Temp diff Trigger Purge RH trigger gt ON 1440 min ZO ebe 2 2200200 2 60 s 240 s 1 0 C Ze Gog ER HORT g ZA oR To activate the new interval settings immediately reset the transmitter When sensor purge in power up is enabled wait about 6 min after power up before taking measurements The output channels are locked for the first operation minutes to the initial measured values 135 USER S GUIDE Sensor Warming DMT345 and DMT346 contain a sensor warming function that is when humidity reaches a set limit default 830 RH sensor warming operation is activated automatically Sensor warming continues as long as the humidity is above that limit When the warming starts the sensor operation indicator is displayed on the optional display and relays configured as online status Gf any will be released Warming does not affect Ta Tay atm Ta Ta atm X H20 and Pw quantities all others will be frozen 136 M210762EN E Chapter 5 MODBUS CHAPTER 5 MODBUS This chapter contains information that is needed when operating the transmitter using the MODBUS protocol Overview of MODBUS Protocol Support The DMT345 346 transmitters can be accessed using the MODBUS seria
82. e adjustment and to return to the basic display 161 USER S GUIDE 162 Adjusting Analog Outputs Using Serial Line ACAL Use the serial line to perform the analog output adjustment Use the ACAL command and enter the multimeter reading Example current outputs gt acal CHL ial Chi I2 CHA el E e gt JD al zl 2 046 18 087 2 036 18 071 Press the adjustment button on the motherboard inside the transmitter again to disable the adjustment function M210762EN E Chapter 8 Technical Data CHAPTER 8 TECHNICAL DATA This chapter provides the technical data of the product Specifications Performance Table 34 Dewpoint Specifications DMT345 Property Vaisala DRYCAP 180S 40 100 C 40 212 F Ty 2 3 6 F Ty See accuracy graph in Figure 78 on page 163 Response time 63 90 flow rate 1I min and 1 bar pressure from dry to wet 5s 10 s from wet to dry including auto calibration 45s 5 min 110 100 90 Accuracy ta C 1d 2 A eo or better SN Accuracy 2 C Td ar yr 40 or better 20 AN EI DAC sped urac 0 Ace ge lower G i an ent CM meas Dewpoint temperature C 4 D ewpoint 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 Temperature of measured gas C 0605 0
83. e arrow buttons to open the Main Menu Press the arrow button to select Interfaces 3 Press the arrow button to select Network settings There will be a delay as the transmitter refreshes the network information 4 Press the arrow button to select Wireless LAN settings WIRELESS LAN SETTINGS Type Open unencrypte Key passphrase EXIT 0802 111 Figure 52 Wireless LAN Settings 5 The Name entry on the page shows the SSID of the currently selected wireless network To change the SSID press the SET button Use the A V arrow buttons to change the character under the cursor and ak arrow buttons to more the cursor Press the OK button when done Enter network name SSID CANCEL 0802 110 Figure 53 Entering Network SSID 6 To change the currently selected Network type select the Type entry and press the Change button Select the new type from the list and press the Select button WIRELESS NETWORK TYPE Mf Open unencrypted Jiu Open HEP 7 WPA PSK TEIP 7 WPA PSK CCMP SELECT CANCEL 0802 112 Figure 54 Selecting the Wireless Network Type M210762EN E Chapter 4 VAISALA Operation 7 Ifyou have selected an encrypted network type WEP or WPA you must enter the security key to be used Select the Key passphrase entry and press the Set button Enter the key in the same way as the SSID and press the OK button With the WEP encryption you must enter the encryption key in hexadecimal 10
84. e cece dey Bea eye EE RE Ee LOD ER SC 0 00 ppmv 5000 00 ppmvV not installed not installed M210762EN E Chapter 4 Operation LIGHT Use the LIGHT command to view or set the backlight mode of the display optional Issuing the command without specifying a mode shows the current backlight mode LIGHT mode lt cr gt where mode The operating mode of the display backlight The options are ON backlight always on OFF backlight always off AUTO backlight automatically turns on and off when keypad is used Example gt light Backlight e OFF gt light auto Backlight AUTO gt HELP Use the HELP command to list the currently available commands The available commands are determined by the device configuration and installed options VAISALA Example gt help ACAL ADDR AERR ALSEL ASEL CDATE CLOSE CON CRH CT CTEXT DATE DELETE DIR DSEL DSEND ECHO ERRS FCRH FILT FORM HELP INTV ITEST LIGHT LOCK MODBUS MODS PLAY PRES PUR PURGE R RESET SCOM SDELAY SEND SERI SMODE SWARM SYSTEM TEST TIME UNDELETE UNIT VERS XHEAT XPRES gt E e a EE E USER S GUIDE 108 ERRS Use the ERRS command to display transmitter error messages see Table 32 on page 149 Example no active errors gt errs No errors gt Example showing active error gt errs Error E2 Humidity sensor open circuit gt VERS Use the VERS command to display software version information Example gt vers DMT340 5
85. e network information 4 You are now in the Network Interface menu Selecting the IP configuration option opens the IP configuration menu NETWORK INTERFACE ak Mireless LAN settings E HP contiguration e Communication protocol z Web config enable Status Hot connected EXIT 1102 015 Figure 50 Network Interface Menu The Network Interface menu also allows you to configure the Communication Protocol enable or disable the Web configuration option or Disconnect all users that are currently accessing the LAN or WLAN interface 5 Inthe IP configuration menu select Automatic configuration DHCP or enter the IP address Netmask and Gateway manually If automatic configuration is enabled manual configuration cannot be done IP CONFIGURATION a Automatic conf DHCP IP addr 172 25 100 17 Netmsk 255 255 0 0 Gatew 1727 25 01 HAC 00 40 9d 2a T a 60 OFF EXIT 0709 004 Figure 51 IP Configuration Menu To enter a value manually use the A V arrow buttons to select the parameter to change and press Change A cursor will appear in the first digit Move the cursor using the lt P arrow buttons and change the value under the cursor using the A V arrow buttons Confirm the selection by pressing OK D After configuring the desired parameters press EXIT to apply the changes and return to the basic display 81 USER S GUIDE 82 Using Serial Line Use the serial line command NET to view or set the netw
86. e register s Data Encoding All numeric values are available both in 32 bit IEEE floating point and 16 bit signed integer formats 32 Bit Floating Point Format Floating point values are represented in standard IEEE 32 bit floating point format Least significant 16 bits of floating point numbers are placed at the smaller MODBUS address as specified in Open MODBUS TCP Specification Release 1 0 This is also known as little endian or Modicon word order Despite the specification some MODBUS masters may expect big endian word order most significant word first In such case you must select word swapped floating point format in your MODBUS master for DMT345 346 MODBUS registers 180 M210762EN E Appendix C VAISALA MODBUS Reference A quiet NaN value is returned for unavailable values Writing any NaN or infinite value is silently ignored A Quiet NaN is for example 0x7FC00000 however the master should understand any NaN value A complete 32 bit floating point value should be read and written in a single MODBUS transaction e g function codes 05 06 and 22 do not have an effect on floating point values 16 Bit Integer Format 16 bit integer values are scaled to include the necessary decimals see corresponding register table for the scaling factor Negative values when applicable are represented in 2 s complement 65535 1 65534 2 etc Measurement parameters wit
87. e the value ALARH 1 Quantity T Act above 0 5 00 C Act below 0 00 C Hysteresis 1 00 C Alarm enable HE CANCEL 0802 070 Figure 47 Modifying an Alarm Limit When modifying the value use the arrow up and down buttons to change the value under the cursor Left and right arrow buttons move the cursor Select the OK button to accept the modified value or Cancel to undo the modification 6 Seta suitable Hysteresis value to prevent the alarm from being triggered unnecessarily by small measurement changes that pass the alarm limit repeatedly 7 Set or clear the Alarm enable checkbox to enable or disable the alarm 8 Press the Exit button to leave the alarm configuration screen and return to the basic view 74 M210762EN E Chapter 4 Operation MI70 Link Program for Data Handling VAISALA The real time window function of the MI70 Link program allows you to monitor transmitter readings directly with a PC when transmitter is temporarily connected with a serial or USB cable You can also transfer recorded data from the main transmitter memory in numeric or graphical format for further use in a spreadsheet program such as Microsoft Excel or virtually any other application Follow the steps below to connect your transmitter to the MI70 Link program using the serial interface 1 Connect your PC to the transmitter Refer to section Serial Line Communication on page 76 Check that the transmitter is
88. eeeeeeeeeeaeeeeees 163 Temperature Specifications DMT2AR 164 Relative Humidity Specifications DMT345 cc eeeeceeeeeeeees 164 Mixing Ratio Specifications DMT345 cc eeeceeeeceeeeeeeeeees 164 Dewpoint Specifications DMT346 senseeenneseneeseeneneeener ennn 164 Mixing Ratio Specifications DMT346 cceeeeeeeeeeeeeeeeeees 165 Operating Environment Specifications Both Models 165 Inputs and Outputs Specifications Both Models 166 Mechanics Specifications Both Modelle 167 Options and Acceseories aaa a A 170 Supported FUNCION COdES ccceeeecccceeeeeeeseeeeeeseeaeeeseeeeeees 179 DMT345 346 MODBUS Register Dlocke 180 Measurement Data Registers ccccseeeeeseeeeeeseeeeeeseeeeeeees 182 otas EISE ee 183 Configuration Parameter Registers snneeenneenneeenr reenen 183 Configuration Flag Hegsiers 184 Exception Status Outputs iisen een diccicidieies 184 MODBUS Mr HESE 185 MODBUS Device Identification cc cecccceccssseeeeeeeeeeeeeeeees 186 MODBUS Exception Hesponses 186 USER S GUIDE This page intentionally left blank 12 M210762EN E Chapter 1 CHAPTER 1 General Information GENERAL INFORMATION This chapter provides general notes for the manual and the product About This Manual This manual provides information for installing operating and maintaining Vaisala DRYCAP Dewpoint Transmitters DMT345 and DMT346 Contents of This Ma
89. eees 186 Exception RESPONSES ccccsssesseecenssesseeeeneanseeeeneeaseesennneass 186 8 M210762EN E List of Figures VAISALA Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Figure 20 Figure 21 Figure 22 Figure 23 Figure 24 Figure 25 Figure 26 Figure 27 Figure 28 Figure 29 Figure 30 Figure 31 Figure 32 Figure 33 Figure 34 Figure 35 Figure 36 Figure 37 Figure 38 Figure 39 Figure 40 Figure 41 Figure 42 Figure 43 Figure 44 Figure 45 Figure 46 Figure 47 Figure 48 Figure 49 Figure 50 Figure 51 Figure 52 Transmitter BOY girs ise tense aon ee ee cee Gs eg eens 22 Inside the Transmitter geseet a 23 Probes elle Le 24 Standard Moning EE 26 Mounting with Wall Mounting hi 27 Dimensions of the Plastic Mounting Plate mm inch 27 Mounting with Metal Wall Mounting Plate cceeeeeeeeeeee 28 Dimensions of the Metal Mounting Plate in mm 29 Mounting with DIN Rail Installation km 30 Vertical Pole ut EI e EE EN Horizontal Pole Installaton 31 Mounting the Rain Shield with Installation kt 32 Panel MOUNUNG LEE 33 Panel Mounting Dimensions MM INCH cccesseeeeeeeeeeeees 33 DMT345 Probe Dimensions mmdmch 34 Hange INSTANATION LEE 34 DMT346 Probe Dimensions iN mm 35 Cooling Set DIMENSIONS IN mm 36
90. epared to swap the D1 and DO wires if you have a communication problem VAISALA 55 USER S GUIDE Installation and Wiring 1 Disconnect the power In case the RS 422 485 module is installed in the factory continue with the item 4 2 To attach the module open the transmitter cover and fasten the RS 422 485 module to the bottom of the housing with four screws 3 Connect the flat cable between the RS 422 485 module and the motherboard s pins MODULE1 Communications Pull the network wirings through the cable gland 5 Connect the twisted pair wires 1 or 2 pairs to the screw terminals as presented in Table 6 Table 6 Connecting Twisted Pair Wires to Screw Terminals 2 wire RS 485 4 wire RS 485 422 4 DOSS To avoid problems in the RS 422 485 network the Common terminal should be wired to the corresponding terminals of the other devices 6 If you use RS 422 or RS 485 to connect just one transmitter to a master computer enable the internal termination of DMT345 346 by switching switches 1 and 2 ON Make sure that the master s end of the line is also terminated by using master s internal termination or with a separate terminator If you are connecting many transmitters to the same RS 485 bus make sure that switches and 2 are OFF and terminate the bus with separate terminators at both ends This allows removing any transmitter without blocking the bus operation If you use the internal termination of t
91. er 2 Connect the desired cable serial interface cable or USB cable to your PC and the service port connector on the transmitter For location of the service port refer to Figure 49 on page 76 3 Open a terminal program and set the communication settings as follows Table 14 Communication Settings for the Service Port 19200 BO Data bits Stop bits Flow control For a detailed explanation of using a terminal program see section Terminal Program Settings on page 87 d Power up the transmitter LAN Communication To enable LAN communication a LAN or WLAN interface must be physically connected to the network and the networking settings must be suitable for your network For a description of interfaces see sections LAN Interface on page 59 and WLAN Interface on page 60 The LAN and WLAN interfaces both operate by accessing the serial interface User Port of the transmitter All commands and protocols that are available using the serial interface are available through the LAN and WLAN interfaces refer to section List of Serial Commands on page 90 For instructions on how to connect using a terminal program see section Terminal Program Settings on page 87 VAISALA 79 USER S GUIDE 80 IP Configuration The IP settings of the LAN and WLAN interfaces are described in Table 15 The current settings can be viewed on the serial line or using the device information display see section Device Information on page 105
92. foil to dimension X 3 Push the domed cap nut item 1 and the seal insert with contact socket of the gland items 2 amp 3 onto the cable as shown in the diagram 4 Bend over the screen braiding or screen foil by about 90 item 4 42 M210762EN E Chapter 3 VAISALA Installation 5 Push the seal insert with the contact socket of the gland items 2 amp 3 up to the screen braiding or screen foil Mount lower part item 5 on the housing Push the seal with the contact socket of the gland item 2 amp 3 and flush into the lower part item 5 8 Install the domed cap nut item 1 onto the lower part item 5 Transmitter Housing Grounding In case you need to ground the transmitter housing the grounding connector is found inside the housing see Figure 1 on page 22 Note anyhow that the probe is connected to the same potential as the housing Make sure that different groundings are made to the same potential Otherwise harmful ground currents may be generated If it is needed to have galvanic isolation of the power supply line from the output signals DMT345 346 can be ordered with optional output isolation module This module prevents harmful grounding loops Signal and Power Supply Wiring When connecting transmitter with 8 pin connector see section 8 Pin Connector on page 64 H z Ke St 1 ee H S SER PORT RS 232 Sg Ge S S S Txt qD S S S S ANALOG OUTPUTS
93. g hole meets the end of the bar 5 Lock the probe in place by tightening the locking screws on the bar Probe and Cooling Set Mounting with Process Shut Down Complete the entire mounting process as instructed on page 38 Probe and Cooling Set Mounting with Process Running First mount the cooling element and fins to warm it up tightly plug the hole for the probe in the cooling element for the duration of the warmup period After a few hours complete the installation by installing the probe This procedure should lessen the amount of condensation that builds up in the hole _ Mineralwool H s Figure 83 Insulation with Mineral Wool 174 M210762EN E Appendix B Calculation Formulas APPENDIX B CALCULATION FORMULAS This Appendix contains the formulas used for the calculated output quantities The DMT346 series transmitters measure relative humidity and temperature From these values dewpoint mixing ratio absolute humidity and enthalpy in normal pressure are calculated using the following equations Dewpoint T RI a m 1 1 Pw l log P is the water vapor pressure The parameters A m and T depend on temperature according to the following table tA 6 1134 273 47 0 50 6 1078 7 5000 237 3 50 100 C 5 9987 7 33138 229 1 100 150 C 5 8493 1 2156 229 0 150 180 C 6 2301 7 3033 230 0 1 Used for frostpoint calculation if the dewpoint is negative
94. g screw terminals Relay data logger RS 422 485 LAN or WLAN module optional Grounding connector Power supply module optional Relay data logger or analog output module optional Dewpoint probe Output isolation module optional Adjustment button and Manual AutoCal buttons with indicator LED and pressure set buttons 23 USER S GUIDE 24 Probes and Cooling Set 0604 007 Figure 3 Probes Cooling Set Figure 3 above shows from left to right DMT345 probe DMT346 probe and the cooling set The probes are available with the following cable lengths 2 m 5 m and 10 m Optional mounting flange for DMT345 probe M210762EN E Chapter 3 Installation CHAPTER 3 INSTALLATION This chapter provides you with information that is intended to help you install this product Selecting Location Finding a suitable site for the dewpoint measurement probe is important for getting representative process or environmental measurements The location of the probe should provide a good representation of the area of interest Also select a location that is as clean as possible Air should circulate freely around the sensor VAISALA pes ess 8 ees 28 a USER S GUIDE Mounting the Housing The housing can be mounted either without the mounting plate or with optional mounting plates Standard Mounting
95. gs Obtain an IP address automatically using DHCP Use the following IP address IP Address 132 15 43 52 Subnet Mask 255 255 0 0 Reboot Default Gateway 172 25 0 1 Logout C Enable AutoIP address assignment Changes to DHCP IP address and Subnet Mask may effect your browser connection Apply gt Advanced Network Settings 1102 017 Figure 55 Web Configuration Interface for WLAN Terminal Program Settings The instructions below describe how to connect to the transmitter using the PuTTY terminal application for Windows Perform the necessary cabling and configuration of the transmitter before following the instructions PuTTY is available for download at www vaisala com PuTTY cannot be used to access the transmitter through the User Port if the transmitter 1s configured to use the MODBUS protocol However you can always use PuTTY to access the transmitter through the Service Port Opening a Serial USB Connection Power up the transmitter and start the PuTTY application 2 Select the Serial amp USB settings category and check that the correct COM port is selected in the Serial or USB line to connect to field Change the port if necessary If you are using a Vaisala USB cable you can check the port that it uses by clicking the USB Finder button This opens the Vaisala USB Instrument Finder program that has been installed along with the USB drivers 87 USER S GUIDE 88 3 Chec
96. h normally positive values for example 0 100 RH may occasionally return small negative values because of measurement inaccuracy These negative values are returned as large 16 bit integer values 2 s complement If the scaled value does not fit in the range 0 65535 16 bit range the value is wrapped to the range by adding or subtracting 65536 as many times as needed For example mixing ratio x value 658 92 g kg is returned in 16 bit integer format as 356 Ox0164 You will need to add suitable offset to the 16 bit data in the MODBUS master to get valid value out 356 16 bit register value 65536 offset 65892 gt 658 92 g kg scaled by x0 01 However most of the measurement data values do not need any offset A zero 16 bit value is returned for unavailable values There is no way to distinguish missing values from actual zero values if the zero value is included in the valid measurement range of the parameter 181 USER S GUIDE If your MODBUS master supports 32 bit floating point values always use them instead of 16 bit integer registers The use of 16 bit integer values is not recommended in critical applications because you cannot distinguish true zero values from zero values generated by measurement failures In addition to this 2 s complement makes negative values look like large positive values which must be taken into account when utilizing the 16 bit register values When w
97. he transmitter at the end of the RS 485 bus instead of using separate terminators removing that transmitter will block the bus operation 7 Use the bus type 4 wire 2 wire to select the selection switch 3 In 4 wire mode RS 485 master sends data to the DMT345 346 through terminals Rx D1 and Rx DO and receives data from DMT345 364 through terminals Tx D1 and Tx DO 56 M210762EN E Chapter 3 VAISALA RS485 bus master Address NN Switch Tx DO Term off Tx D1 Term off Common 2 4 wire on Rx DO RS422 off Rx Di RS485 1 Address MM Switch Tx DO wv al Term off Tx D1 lt Term off Common 2 4 wire on Rx DO RS422 off RxDi le Stub RS485 1 Baud gt 19 2K Stub lt 10ft 3m Baud gt 112K Stub lt 1ft 0 3m Figure 34 Installation Termination Termination Ep mm Ep EP Eee Ee ee ee ee Lee ee mm Co Fy 120R rh it 1 Tal Lend s OR 1 R 0 Stub l wem H Junction box Twisted pair Junction box SS 120R 1 FP irn YO Junction box Termination Termination 1102 028 4 Wire RS 485 Bus Connections Part A Table 7 4 Wire Switch 3 On RS 485 master Data DMT345 346 TxD Lt Ps b rn SEET si USER S GUIDE 58 Termination DO l D1 5 l Common m l g l l l RS485 bus master mp zm rm zm Ce zm Cem l Address NN Switch o gt Term off o Term off Common 2 4 wire off DO gt lt RS422 off Di
98. ication Protocol Specification V1 1b Both stream access and individual access to the objects is supported Table 52 MODBUS Device Identification ObjectiId _ ObjectName __ _ Description ProductName 0x81 CalibrationDate Date of the last calibration e g 2011 03 01 empty if not available 0x82 CalibrationText Information text of the last calibration empty if not available Exception Responses 186 Exception responses from the transmitter are according to the MODBUS Application Protocol Specification V1 1b Table 53 MODBUS Exception Responses Code Name _ Reason _ S 01 ILLEGAL FUNCTION Unsupported function code 01 ILLEGAL DATA ADDRESS Address out of valid ranges ILLEGAL DATA VALUE Otherwise invalid request Accessing unavailable unsupported or temporarily missing registers inside ranges specified in Table 46 does not generate an exception Unavailable value a quiet NaN for floating point data or zero for integer data is returned instead An exception is generated only for any access outside the register blocks defined in section Register Map on page 180 M210762EN E www vaisala com M2107 62 EN
99. ied to the interface provided by the module if applicable Using Display Keypad Press any of the arrow buttons to open the Main Menu 2 Select Interfaces and press the arrow button to confirm your selection 3 Select Serial interface and press the arrow button to confirm your Selection 4 Select Bit rate and Serial format by pressing the CHANGE button Use the A V arrow buttons to select and press SELECT to confirm your selection 5 Select the Protocol to be used by the serial output by pressing the CHANGE button Select the option using the A V arrow buttons and press SELECT This is the same serial mode setting that is changed by the SMODE serial command RUN mode continuously outputs the measurement message at the set interval If you select the RUN mode set the desired RUN interval also POLL mode enables multiple transmitters to share the same RS 485 line If you select the POLL mode select the Device address also as each transmitter on the line must have an unique address In STOP mode transmitter remains silent after reset or power up waiting for commands In MODBUS mode only MODBUS protocol communication is available See Chapter 5 MODBUS on page 137 Select the RUN interval and the unit Press OK to confirm Select the Device address and press SET to confirm Select ECHO and press ON to turn to it on OFF to turn it off Press EXIT to return to the basic display EH Ee Se The new user
100. iguration are provided in the following sections Enabling Serial MODBUS on page 139 Enabling Ethernet MODBUS on page 141 After configuring the transmitter perform the transmitter installation and wiring according to the instructions in Chapter 3 Installation on page 25 The configuration instructions assume you are familiar with the use of the transmitter Additional details on the display keypad service port use and serial commands are available in other sections of this manual The use of the display keypad option is described in section Display Keypad on page 66 If this is the first time you are using the USB service cable you can find detailed instructions in section Service Port Connection on page 78 You must install the required driver before using the service cable Configuration of the LAN and WLAN Interfaces is decribed in section LAN Communication on page 79 The serial commands available through the service port are described beginning from section List of Serial Commands on page 90 M210762EN E Chapter 5 MODBUS Enabling Serial MODBUS In addition to enabling the MODBUS protocol in the device MODBUS over RS 232 or RS 485 needs the following software settings serial bit rate parity number of stop bits and MODBUS device address VAISALA Using Display Keypad Optional l Open the Main Menu by pressing any of the V A lt P arrow buttons Navigate to Interfaces Serial Interfa
101. ill blink green during normal operation If the LED is lit in red color there is a problem with the module The transmitter will also indicate the problem by activating the Internal error on add on module error If the module is not operating correctly the transmitter must be sent to Vaisala for maintenance The data logger module must be installed at the factory when ordering the transmitter or by a Vaisala Service Center Once installed the module is automatically used by the transmitter When the module requires a new battery the transmitter must be sent to Vaisala for maintenance 63 USER S GUIDE 64 8 Pin Connector 5 H WS 3 2 1104 126 Figure 39 Pinout of the Optional 8 Pin Connector Table 10 Wiring of the Optional 8 Pin Connector We Wire Serial Signal Analog Signal RS 232 EIA 232 RS 485 EIA 485 Data out TX Di Die Brown Serial GND Serial GND Signal GND for both deel 3 Green II jCh r Yelow J S e y Oh 5 Grey ____ Supply Supply Supply 6 Pink Supply Supply Supply 7 Blue DatainRX DOF 8__ Shield Red_ Cable shield Copie shield__ Cable shield M210762EN E Chapter 4 Operation CHAPTER 4 OPERATION This chapter contains information that is needed to operate this product Getting Started Within a few seconds after power up the led on the cover of the transmitter is lit continuously indicating normal operation When th
102. ing is stabilized give the reference humidity after the question mark and press Enter gt fcrh RH LE br Ret lt 2 RH Liszo Refr RH i 11 25 Refl RE kk RefL lt 2 RH 3 Haya AEE 2 ER a3 Press any key when ready 9 Now the device is waiting for the wet end reference Insert the probe in the wet end reference condition 30 75 RH Press any key when ready 10 Let the probe stabilize for about 30 minutes You can follow the stabilization by pressing Enter 11 When stabilized type the high end reference value after the question mark and press Enter gt fcrh RH 11 25 Refl 2 e RH 11 24 Refl 2 e RH 11 24 Refl 11 3 Press any key when ready RH z T343 Ref2 7 e PHS i Tool Bet vye RH Zeeche est e e RH lt 2 PI ee T 795 OK gt 12 The OK indicates that the adjustment has succeeded and the new calibration coefficients are calculated and stored Enter the adjustment information date and text to the memory of the transmitter see section Adjustment Information on page 152 13 Press the ADJ button on the motherboard to close the adjustment mode 14 Take the probe out of the reference conditions and replace the filter VAISALA 155 USER S GUIDE One Point Dewpoint Adjustment One Point Dewpoint Adjustment Using Display Keypad This is a highly critical adjustment to be performed only in laboratory conditions Preferably use the display keypad interface to perform
103. k that the other serial USB line settings are correct for your connection and change if necessary The default settings shown in Figure 1 are used by the Service Port of the transmitter i PuTTY Configuration H Session Options controlling local serial and USE lines H Terminal E Window S Connection Serial or USB line to connectto COMI Select a serial USE line Configure the seral USB line Serial amp USB speed baud Data bits Stop bits Parity How contral 0810 070 Figure 56 Opening a Serial Connection 4 Click the Open button to open the connection window and start using the serial line If PuTTY is unable to open the serial port you selected it will show you an error message instead If this happens restart PuTTY and check the settings M210762EN E Chapter A Operation Opening a Telnet Session LAN WLAN The instructions below assume that the LAN WLAN interface on the transmitter is correctly configured and the network connection is already done 1 Power up the instrument and start the PuTTY application If your transmitter acquires a network address using DHCP wait for a minute for this to complete then verify the address from the transmitter In the Session window select the Telnet connection type 3 Enter the IP address of your transmitter in the Host Name or IP address field Use the default Telnet port 23 i PuTTY Configuration Session Basic options for your PuT TY
104. l communication protocol Support for MODBUS protocol is available on all DMT345 346 transmitters as a standard feature from software version 5 10 onward The supported MODBUS variants and the connections they use are listed in Table 31 below Table 31 Supported MODBUS Variants Supported MODBUS Variant MODBUS RTU Serial MODBUS RS 232 standard User Port RS 422 428 Interface optional module MODBUS TCP Ethernet MODBUS LAN Interface optional module WLAN Interface optional module The supported MODBUS functions registers configuration options and diagnostics are described in Appendix C MODBUS Reference on page 179 Note the following limitations of the MODBUS implementation MODBUS TCP mode accepts only one TCP connection at a time Design the system so that only one MODBUS TCP client accesses the transmitter MODBUS TCP can process reliably only one MODBUS transaction at a time Reduce the polling rate of the client to avoid nested transactions VAISALA 137 USER S GUIDE 138 Taking MODBUS into Use To take the MODBUS protocol into use on the transmitter you must perform some configuration tasks using the built in display and keypad optional or a PC connected to the serial line For example you can connect to the service port using the USB service cable Vaisala order code 219685 The transmitter must be powered from a suitable power supply during configuration Instructions for performing the conf
105. lays Testing activates relays even if they are disabled Use the module push buttons to activate the relays Press the REL 1 or REL 2 button to activate the corresponding relay Use the display keydpad to test the operation of relays 1 Open the Main Menu by pressing any of the A Tak arrow buttons Select System press the arrow button Select Diagnostics press the arrow button Select Relay tests press the arrow button a ae io a Select Invert relay 1 press TEST Now the selected relay output is forced to opposite state Press OK to return to normal operation 6 Press EXIT to return to the basic display RTEST Use the serial line command RTEST ON OFF ON OFF to test the operation of the relays Example Testing all four relays gt rtest on on on on ON ON ON ON gt gt rtest off off off off OFF OFF OFF OFF Issue the command RTEST to stop testing M210762EN E Chapter 4 Operation Sensor Functions AutoCal To obtain the best possible accuracy in measurements taken in dry environments DMT345 and DMT346 have a built in AutoCal feature During the AutoCal the transmitter adjusts the dry end reading to correspond to the calibrated values This is a unique and patented method to avoid errors in accuracy when monitoring low dewpoints The AutoCal is carried out if the following criteria for the measurement environment are fulfilled Relative humidity must be lt 10 Tempera
106. le with the Read Exception Status function code 07 For details see section Exception Status Outputs on page 184 VAISALA Configuration Registers Configuration parameter registers are used to configure the measurement Writing out of range values is silently ignored Table 48 Configuration Parameter Registers Valid Range Name oe _ Pressure setting default 0769 0770 1025 x1 0 9999 hPa value Pressure setting 0771 0772 1026 x1 0 9999 hPa temporary value Sensor purge interval 0773 0774 1027 x1 10 2880 min Molecular weight for 0775 0776 1028 x0 001 0 999 999 ppmy calculation g mol If you modify the pressure setting repeatedly modify the temporary value at register 0771 0772 1026 instead of the permanent setting at register 0769 0770 1025 Set the temporary value to zero to return to the default pressure setting Non metric units are not available on MODBUS If they are needed calculate the conversion outside the transmitter 183 USER S GUIDE Configuration flags are used to select some basic options of the instrument and to manually start the sensor operations Table 49 Configuration Flag Registers Name TL ddress Description Standard filtering on off 1281 1 Filtering on Extended filtering on off 1282 1 Extended filtering on Automatic sensor purge on off 1283 1 Automatic purge on See configuration register 0773 0774 1027 Start up sensor purge on off
107. libration see the calibration instructions or when there is a reason to believe that a sensor has become exposed to an interfering chemical Starting and Configuring Sensor Purge Using Display Keypad Optional 1 Open the Main Menu by pressing any of the V A lt P arrow buttons Select Measuring press P button 3 Select Purge press gt button PURGE Z Start Purge now Interval 12 Next date 3 31 2011 Time 12 00 OFF EXIT 1103 067 Figure 65 Sensor Purge Settings Start the sensor purge manually by selecting Start purge now and pressing START Select Purge on power up by using the arrow buttons Press On Off to turn the start up purge on off 133 USER S GUIDE 134 Set the automatic purge interval by selecting Interval press SET Set the purge interval and the unit minutes hours by using the arrow buttons The interval must be 10 min 48 h Press OK If you have the data logger module installed you can also specify the Date and Time when the purge is performed next 4 Press EXIT to return to the basic display Purge in progress CANCEL 1103 066 Figure 66 Performing Sensor Purge Using Serial Line PURGE Use the PURGE command to start the sensor purge immediately PURGE lt cr gt Example gt purge Purge started press any key to abort gt The prompt gt appears when the heating period is over However the transmitter outputs are l
108. llowing numbers refer to Figure 7 above 1 Mount the plate to wall with 4 screws MS not provided 2 Fasten the transmitter to the mounting plate with 4 fixing screws M6 provided 3 Note the position of the arrow when mounting This side must be up when mounting 28 M210762EN E Chapter 3 Installation 0604 012 Figure 8 Dimensions of the Metal Mounting Plate in mm VAISALA ee eee USER S GUIDE 30 Mounting with DIN Rail Installation Kit DIN rail installation kit includes a wall mounting kit 2 clip fasteners and 2 screws M4 x 10 DIN 7985 Vaisala order code 215094 1 Attach two spring holders to the plastic mounting plate by using the screws provided in the installation kit 2 Fasten the transmitter to the plastic mounting plate with 4 screws provided 3 Press the transmitter onto the DIN rail so that the clip fasteners snap into the rail 0604 013 Figure 9 Mounting with DIN Rail Installation Kit M210762EN E Chapter 3 VAISALA Installation Pole Installation with Installation Kit for Pole or Pipeline Installation kit for pole or pipeline Vaisala order code 215108 includes the metal mounting plate and 4 mounting nuts for pole mounting When mounting the arrow in the metal mounting plate must point upward see Figure 7 on page 28 0604 014 Figure 10 Vertical Pole Installation The following numbers refer to Figure 10 above l U bolts 2 pcs M8 provided for 30
109. motherboard s connector for MODULE 2 Take out the protective plug from the cable gland and thread the wires Connect the wires to the screw terminals marked with Ch and Ch Select the current voltage output by setting ON either of the switches 1 or 2 Select the range by setting ON one of the switches 3 7 Only one of the switches 1 2 can be ON at a time Only one of the switches 3 7 can be ON at a time Channel 3 Figure 31 Third Analog Output Selection Connect the power pl 4 20 mA selection ON 4 20 mA selected al o oOo 0 1 V selection ON 0 1 V selected el 0 5 V selection ON 0 5 V selected iw 0 10 V selection ON 0 10 V selected el For service use only keep always in OFF position 0508 029 Select the quantity and scale the channel via the serial line or display keypad see section Analog Output Quantities on page 120 For testing the analog output see Section Analog Output Tests on page 121 For fault indication setting see section Analog Output Fault Indication Setting on page 122 M210762EN E Chapter 3 CAUTION Installation Alarm Relays DMT345 346 can be equipped with one or two configurable relay modules Each module contains two configurable relays See the contact ratings in section Technical Specifications of Optional Modules on page 167 Installation and Wiring 1 Disconnect the power In case the relay module is installed in the fa
110. mple 1 point adjustment gt ct T 16 06 Refl T 16 06 ert di 16 06 Refl L 16 06 Refl T T P VeV Vv QaA00Q0 0 16 06 Refi 7 16 06 Refl 16 0 ress any key when ready ER MOe 00 Ref2 7 OK gt OK indicates that the calibration has succeeded 5 Press the ADJ button on the motherboard to close the adjustment mode 6 Take the probe out of the reference conditions and replace the filter 160 M210762EN E Chapter 7 Calibration and Adjustment Adjusting Analog Outputs VAISALA In the analog output calibration the analog output is forced to the following values Current output 2 mA and 18 mA Voltage output 10 and 90 of the range Connect the transmitter to a calibrated current voltage meter in order to measure either current or voltage depending on the selected output type Use the display keypad or the serial line to do this Adjusting Analog Outputs Using Display Keypad 1 Press the ADJ button on the motherboard to open the ADJUSTMENT MENU 2 Press the arrow button to select Adjust analog outputs 3 Select the output to be adjusted Adjust analog output 1 2 press START 4 Measure the first analog output value with a multimeter Enter the measured value by using the arrow buttons Press OK 5 Measure the second analog output value with a multimeter Enter the measured value by using the arrow buttons Press OK Press OK to return to the adjustment menu Press EXIT to close th
111. n to the basic display You can also activate Manual AutoCal by pressing both AUTOCAL buttons on the transmitter motherboard These are the same buttons as the pressure set buttons but when pressed simultaneously they will start the AutoCal procedure See Figure 58 on page 102 for location of the AUTOCAL pressure set buttons If the AutoCal conditions are not fulfilled a note appears on the display informing that the calibration cannot be made M210762EN E Chapter 4 VAISALA Operation Sensor Purge Sensor Purge is available for DMT345 and DMT346 The Purge should be carried out to achieve the shortest response times and the best long term stability Sensor Purge is an automatic procedure in which the sensor is dried Thus the sensor will respond very fast when installing the probe from an ambient to a dry gas Sensor Purge also corrects the possible gain drift caused by some chemicals thus ensuring together with AutoCal the best measurement accuracy and long term stability As a default the interval Purge and power up Purge are turned on automatically in DMT345 and DMT346 It is recommended not to turn them off The automatic sensor Purge can also be started manually If enabled power up Purge will start always about 10 seconds after reset If the power is continuously turned on in the transmitter the automatic sensor Purge will be performed at an interval of 24 hours A sensor purge should be performed always before ca
112. nalog Outputs Using Serial me 162 Eege 162 CHAPTER 8 TECHNICAL EE TEE e 163 laien ln CN 163 PCIMORMANGC ESS EE 163 Technical Specifications of Optional Modules 167 Power Supply Module nnn00annnnnnnnoennnnnnnnnnnnnnnnnnnnennnnn 167 Analog Output Module cc ccccccceeessesseseeeeeeeeeaeeeeees 167 Relay lee EE 168 Krees Tel 168 LAN Interface Module onannnnnnnnnnnnnnnennnnnsnnnnnesnnnnennenne 168 WLAN Interface Module nnnnonnnnnnnennnnnnennnnnnnnnnennnnne 168 Data Logger Module snnannnnnnonnnnnsnnnnnensnnnnnnssnnennenenne 169 Options and Accessories scceseeeeesecsssseneeeeeeeeeeeeenneeees 170 Dimensions mmINE E 171 APPENDIX A EXAMPLE INSTALLATION OF DMT346 cccceeeeeeeeeeeeeeeeeeeeeeeneeees 173 APPENDIX B CALCULATION FORMULAS 0csceeeeeeeeeceeeeeesscsnnnnnnseeeeeeseeeeeees 175 USER S GUIDE APPENDIX C MODBUS REFERENCE EE 179 FUNCION COGS geet 179 Register MaD E 180 Dale EMCOGIAG RE 180 32 Bit Floating Point Fommat assino 180 16 Bit Integer Format REENEN 181 Measurement Data Head On 182 Status Registers eege EWEN eut eege ege 183 Configuration Registers nnnnneneeeeosseserennnnneneeneeeeeneea 183 Exception Status Output cccccccceeessssssssssessesseeeeeeeeeeeeees 184 Diagnostic SUD FUNCTIONS s sssssssuussssnnnnnnnnnnnnnnnnnnnnnnn nnmnnn 185 Device Identification Objects sscccccsssssseeeeesseeeee
113. nect protective ground terminal VAISALA pes Se ss 8 ees 28 2 Se USER S GUIDE Warnings Dieses Produkt entspricht der Niederspannungsrichtlinie 2006 95 EWG Das Netzmodul darf nur von einem dazu befugten Elektriker angeschlossen werden Trennen Sie das Netzmodul nicht vom Messwertgeber wenn der Strom eingeschaltet ist Verbinden Sie das Netzmodul nur mit der Spannungsquelle wenn es im Messwertgeber DMT345 346 montiert ist Das Erdungskabel muss zum Schutz immer angeschlossen sein Ce produit est conforme a la Directive relative a la Basse Tension 2006 95 EEC Seul un lectricien comp tent est habilit raccorder le module d alimentation au secteur Ne pas d tacher le module d alimentation du transmetteur lorsqu 1l est en service Ne pas raccorder le secteur au module d alimentation lorsque celui ci n est pas install dans le transmetteur DMT345 346 Toujours raccorder un bornier de protection a la terre Tama tuote on pienjannitedirektiivin 2006 95 EEC mukainen Vaihtovirtaliit nnan saa kytke tehonsy6tt6moduuliin ainoastaan valtuutettu s hk asentaja Ala irrota tehonsy6tt6moduulia l hettimest kun virta on kytkettyn l kytke verkkovirtaa tehonsy6tt6moduuliin jos kyseist moduulia ei ole asennettu DMT345 346 l hettimeen Kytke aina maadoitusliittimet Denna produkt uppfyller kraven i direktivet om lagspanning 2006 95 EEC N tanslutningen v xelstr m
114. ng FAULT ONLINE STATUS for output quantity a relay changes state on the basis of the operation status as follows FAULT STATUS Normal operation relay active C and NO outputs are closed Not measuring state error state or power off relay released C and NC outputs are closed 125 USER S GUIDE ONLINE STATUS Live measurement data available relay active C and NO outputs are closed No live data for example error state chemical purge or adjustment mode relay released C and NC outputs are closed See Figure 62 on page 126 for illustrative examples of the FAULT ONLINE STATUS relay output modes Analog output vs FAULT STATUS relay analog JO output A value KN Analog output fault indication value set by user time Outputs frozen because of e g Purge Relay is released in case of a measurement failure only Measurement failure because of e g damaged sensor True value of the measurement parameter during the exceptional situation Analog output vs ONLINE STATUS relay Relay active NO C connected analog N l L CULES N Relay is activated value tz Oe KN Relay is released AA 4 bw NN SW N d A NW wl NN A d N N N k SN D he eS ro AERR XN WW Bi Ww N d 8 E Pa time Relay is released when the output values are frozen the adjustment mode is activated or an instrument failure is detected 1102 040 Figure 62 FAULT
115. nual This manual consists of the following chapters VAISALA Chapter 1 General Information provides general notes for the manual and the product Chapter 2 Product Overview introduces the features and advantages of the Vaisala DRYCAP Dewpoint Transmitters DMT345 and DMT346 Chapter 3 Installation provides you with information that is intended to help you install this product Chapter 4 Operation contains information that is needed to operate this product Chapter 5 MODBUS contains information that is needed when operating the transmitter using the MODBUS protocol Chapter 6 Maintenance provides information that is needed in basic maintenance of the product Possible error states and situations their probable causes and remedies are described in this chapter This chapter also contains contact information for Vaisala Technical Support Chapter 7 Calibration and Adjustment provides you with instructions on how to calibrate and adjust Vaisala DRYCAP Dewpoint Transmitters DMT345 and DMT346 Chapter 8 Technical Data provides the technical data of the product USER S GUIDE Appendix A Example Installation of DMT346 illustrates an example installation of DMT346 transmitter into a process Appendix B Calculation Formulas contains the formulas used for the calculated output quantities Appendix C MODBUS Reference describes the MODBUS functions and data of the transmitter Version Information
116. ocked to the values measured before performing sensor purge until the settling time is over PUR With PUR command you can enable or disable automatic and power up sensor purge and set the interval for automatic purge The default purge interval is 24 hours If the sensor is exposed to chemicals it is recommended to have the sensor purge done at least once in 720 min 12 hours In applications where the chemical exposure 1s not likely the interval can be longer PUR lt cr gt If the transmitter has a data logger module installed you can also set the starting date and time for the interval purge After the set time has been reached the interval purge will be performed at the set interval This M210762EN E Chapter 4 VAISALA Operation functionality can be used to make sure the sensor purge starts at a specific time of the day Do not change the settings for duration settling temperature temperature difference or purge triggering unless instructed by Vaisala personnel Type PUR and press ENTER to proceed Skip unchanged values by pressing ENTER Input changed values in the format shown by the current value for example date and time The maximum interval is 14400 minutes 10 days Example no data logger module installed gt pur Interval Purge Interval Power up Purge Duret ron Settling Temperature Temp diff Trigger Purge RH trigger gt ON 1440 min ON 60 s 240 s SO Se
117. ode active data recorded in the adjustment mode is not displayed AutoCal performed only shown in 3 h graphs A question mark after time tells you that at least one power failure dashed vertical line has occurred after the chosen moment In this case the actual time difference between the present and the cursor position is not exactly known If the data logger module is installed the time is known and the question marks are not present M210762EN E Chapter 4 VAISALA Operation Menus and Navigation You can change settings and select functions in the menus l Ge Open the Main Menu by pressing any of the A V lt P arrow buttons in the basic numeric display mode Move in the menus by using the A V arrow buttons Open a submenu with the button Press lt 4 to return to the previous level Function button EXIT returns you back to the basic display Adjustment menu is displayed only when ADJ button on the motherboard inside the transmitter is pressed MAIN MENU ZC DISPLAY e 7 Measuring Units 2 binterfaces Rounding X System Backlight Always on Oh Contrast EXIT MEASURING im Pressure compensation gt Purge A Manual AutoCal Molec wt 28 960 g mol Filtering Standard INTERFACES OLAINE O r Analog outputs gt Relay outputs SYSTEM ADJUSTMENT MENU AC wE Adjust Ta measurement 7 Menu P bAdjust T measurement M Language English gt Adjust
118. oduct and verify outdoor installation grounding periodically to minimize shock hazard Do not modify the unit Improper modification can damage the product lead to malfunction or make the product noncompliant with applicable legislation ESD Protection Electrostatic Discharge ESD can cause immediate or latent damage to electronic circuits Vaisala products are adequately protected against ESD for their intended use However it is possible to damage the product by delivering electrostatic discharges when touching removing or inserting any objects inside the equipment housing To make sure you are not delivering high static voltages yourself Handle ESD sensitive components on a properly grounded and protected ESD workbench When this is not possible ground yourself to the equipment chassis before touching the boards Ground yourself with a wrist strap and a resistive connection cord When neither of the above is possible touch a conductive part of the equipment chassis with your other hand before touching the boards Always hold the boards by the edges and avoid touching the component contacts Recycle all applicable material Dispose of batteries and the unit according to statutory regulations Do not dispose of with regular household refuse USER S GUIDE Regulatory Compliances EU Declaration of Conformity The Vaisala Vaisala HUMICAP Humidity and Temperature Transmitters DMT345 and DMT346 are in conformi
119. of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help M210762EN E Chapter 1 General Information Transmitters with WLAN Interface This device has been designed to operate with a 2 dBi half wave antenna Antennas with a gain greater than 2 dB are strictly prohibited for use with this device The required antenna impedance is 50 ohms To reduce potential radio interference to other users the antenna type and its gain should be so chosen that the equivalent isotropically radiated power e 1 r p is not more than that permitted for successful communication This Class B digital apparatus complies with Canadian ICES 003 Cet appareil num rique de la classe B est conforme a la norme NMB 003 du Canada Patent Notice Vaisala DRYCAP Dewpoint Transmitters DMT345 and DMT346 are protected by for example the following patents and their corresponding national rights Finnish patents 98861 and 99164 French patents 6650303 and 9504397 German patents 69418174 and 19513274 Japanese patents 3585973 and 2801156 UK patents 0665303 and 2288465 and U S patent 5607564 Trademarks DRYCAP is a registered trademark of Vaisala Oyj Windows is a registered trademark of
120. on 2 GRAPH shortcut button changes the display into a curve mode 3 Selected quantities Press the INFO button in the basic display to see the device information views see section Device Information on page 105 From any view even in the absence of an EXIT button a four second press on the right hand function button takes you directly to the basic display 66 M210762EN E Chapter 4 VAISALA Operation Graphic History The graphical display shows the data trend or min max graph of the selected quantities one at a time The graph is updated automatically while measuring Figure 41 Graphical Display Trend graph Shows you a curve of average values Each value is a calculated average over a period See Table 11 on page 67 Max min graph Shows you the minimum and maximum values in a form of curve Each point shows the absolute minimum and maximum observed during the time period represented by the data point See Table 11 below Table 11 Periods for Trend and Max Min Calculations Observation Period Period for Trend Max Min Calculations Resolution Shows the maximum logging period of the data logger module available when data logger module is installed Use the following functions in the graphical display Press the NEXT button to change between the trend graph and max min graph for the quantities selected for display Press the EXIT button to return to the basic display Press the V A arrow
121. on of the antenna is shown in Figure 81 on page 172 Data Logger Module The optional data logger module extends the data storage for the measurement data When the data logger is present this storage is automatically used by the transmitter The stored data can be browsed using the optional display module and accessed through the serial connections See sections Graphic Historyon page 67 and Data Recording on page 114 The data logger module contains non volatile flash memory providing 4 years and 5 months of storage for 4 parameters at a 10 second sampling interval When the memory is full the data recording will not stop Instead the oldest data is overwritten For each parameter and observation period the module stores the minimum and maximum values during the interval as well a data trend value that is averaged from samples taken during the interval see Table 9 on page 62 VAISALA ee USER S GUIDE 62 Table 9 Observation Periods and Resolution Observation Period Period for Trend Max Min Calculations Resolution 12 minutes S The quantities that are logged are the same that have been selected for measurement using the display keypad or the serial line When taking the transmitter into use verify that the desired quantities are selected If you change the quantities later the transmitter will start logging the new quantities and stop logging the quantities that are no longer selected Changing the quantities doe
122. on value of 1013 25 hPa is used when in adjustment mode Using Display Keypad Use display keypad to set the pressure compensation To select the pressure unit using display keypad see section Changing Quantities and Units on page 98 1 Open the Main Menu by pressing any of the A V lt P arrow buttons 2 Select Measuring and press the arrow button to confirm your selection 3 Select Pressure compensation and press the arrow button to confirm you selection Press SET and enter the pressure value by using the arrow buttons 5 Press OK and EXIT to return to the basic display VAISALA 101 USER S GUIDE 102 Using Buttons on Motherboard Pressure set buttons Penk and Pset can be used to set the process pressure Gg J irs noe flashing an e OO Se 0504 052 Figure 58 Pressure Set Buttons on Motherboard The following numbers refer to Figure 58 above 1 Pressure set button 2 Pressure check button Press check button Ban and a red led will flash the current pressure setting in bar Press the set button Pset to set the pressure value The number of presses equals the number of bar to be set for example three presses three bara After a few seconds the red led will confirm the setting by flashing the new pressure value Using Serial Line XPRES and PRES Command XPRES must be used 1f the value is changed frequently for example by an automatic system that updates the value
123. ork settings for the LAN and WLAN interfaces You can also refresh the network information or disconnect all active connections NET REFRESH DISCONNECT DHCP WEB DHCP IP SUBNET GATEWAY WEB lt cr gt where REFRESH Updates the network information and displays it DISCONNECT Disconnects all current sessions DHCP ON or OFF Enables or disables the automatic IP configuration WEB ON or OFF Enables or disables the Web Configuration page IP The four part network ID of the transmitter Must be set manually if automatic configuration is not used SUBNET Used together with the IP address to determine which network the transmitter is a part of Must be set manually if automatic configuration is not used GATEWAY IP address of the server that enables the transmitter to access other networks Must be set manually if automatic configuration is not used Examples gt net refresh OK DHCP IP address Subnet mask Default gateway OFF Web config MAC address Status gt gt net on off DHCP IP address Subnet mask Default gateway SG KR Web config MAC address Status OK gt S OFF OD sO EA ZoOs ZOD 4 2004 0 LOZ 2 Oo lt x O04 Oe EE gt Not connected gt ON LOZ lt 1 66 O12 LOA E ZOO yZOD 4 Zoos LOZ Eh OO ee 90 7Ze72 O72 05 gt Connected M210762EN E Chapter 4 Operation gt net off 192 168 0 101 255 255 255 0 192 168 0 1 off DHCP gt OFF I
124. ot connected Disconnect the cable 1f you have already connected it 2 Insert the media that came with the cable or download the driver from www vaisala com 3 Execute the USB driver installation program setup exe and accept the installation defaults The installation of the driver may take several minutes 4 After the driver has been installed connect the USB cable to a USB port on your PC Windows will detect the new device and use the driver automatically 5 The installation has reserved a COM port for the cable Verify the port number and the status of the cable using the Vaisala USB Instrument Finder program that has been installed in the Windows Start menu Windows will recognize each individual cable as a different device and reserve a new COM port Remember to use the correct port in the settings of your terminal program If you are using the Vaisala MI70 Link application you do not need to check the COM port as the MI70 Link detects the USB connection automatically There is no reason to uninstall the driver for normal use However if you wish to remove the driver files and all Vaisala USB cable devices you can do so by uninstalling the entry for Vaisala USB Instrument Driver from the Add or Remove Programs Programs and Features in Windows Vista in the Windows Control Panel M210762EN E Chapter 4 Operation Using the Service Port 1 Unfasten the screws on the transmitter cover and open the transmitt
125. panel with suitable supports Remove the paper protecting the adhesive tape on the frame and attach the frame around the transmitter Refer to Figure 13 on page 33 M210762EN E Chapter 3 Installation 0704 002 Figure 13 Panel Mounting Frame The following numbers refer to Figure 13 above 1 Panel not included 2 Panel mounting frame 200 7 87 Lem 119 4 69 155 6 10 154 6 06 0804 083 Figure 14 Panel Mounting Dimensions mm inch VAISALA 33 USER S GUIDE DM1T345 Probe Mounting 34 on KC on S ST E 2 m m ae H S 8 Q H 8 T A DI S i HH N H GE l IH 41 1 61 N a ih 1 27 1 06 2 0 08 192 7 56 242 9 53 0604 018 Figure 15 DMT345 Probe Dimensions mm inch Installation with Flange The DMT345 is a small size d 12 mm general purpose probe suitable for installation through process or duct walls with the flange installation kit available from Vaisala The duct installation kit includes a flange a sealing ring and screws for attaching the flange to the process or duct wall Vaisala order code 210696 75mm 50 mm S drilling 16 22 mm B 4 2 x 16 DIN 7981 105 200 mm 0604 019 Figure 16 Flange Installation Kit The following numbers refer to Figure 16 above l Process or duct wall 2 Flange 3 _ Sealing ring 4 Probe M210762EN E Chapter 3 Inst
126. powered 3 Start the MI70 Link program Start using the program There is usually no need to select a COM port manually the MI70 Link software can detect it automatically The MI70 Link program and the optional connection cables are available from Vaisala See list of accessories in section Options and Accessories on page 170 19 USER S GUIDE Serial Line Communication 76 Connect the serial interface by using either the user port or the service port For permanent interfacing to host system use the user port You can change the serial settings and operate in RUN STOP POLL and MODBUS modes For temporary connections use the service port Service port 1s always available with fixed serial settings 0605 039 Figure 48 Service Port Connector and User Port Terminal on the Motherboard The following numbers refer to Figure 48 above 1 2 Service port connector User Port Terminals M210762EN E Chapter 4 Operation User Port Connection Use suitable serial cable between the user port RxD GND and TxD screw terminals and the PC serial port Table 13 Default Serial Communication Settings for User Port 4800 Even POWER 10 36 V 24 V USER PORT RS 232 Q z Oo S ANALOG OUTPUTS CH l 0506 033 Figure 49 Connection Example between PC Serial Port and User Port Connections to pins 4 6 7 and 8 are required only if your software requires hardware handshaking NO
127. putted Must be given in the following format yyyy mm dd start_time Starting time of the interval to be outputted Must be given in the format hh mm ss or h mm end date Ending date of the interval to be outputted Must be given in the following format yyyy mm dd end_time Ending time of the interval to be outputted Must be given in the format hh mm ss or h mm Example gt play 7 2007 05 05 00 00 00 2007 05 06 00 00 00 TOL 12 min intervals 2ZO007 05 05 EES 0000 LAL Date Time trend min max KEE Ee e Hhimm ss KE ne S SS ER 00 200200 e aer Ee SE SE Eh OORE S00 EECH ER SE SE Eet EE rett eet SS E 22 45 ZOO VS OS JOD S600 3275 43 22 45 22 41 20070509 U0S46 00 227 55 22 41 ee AY ge A SE T O05 05 OU 0 0200 224 3 1 AL OO te OY ALS Output of large amounts of recorded data can result in huge data files and take a long time up to several days for the entire memory of the data logger To make it easier to process the data it is recommended to select the largest suitable data interval and to specify the start and end times carefully M210762EN E Chapter 4 CAUTION Operation Deleting Recorded Files You can delete the recorded data files using the keypad display or the DELETE command on the serial line The deletion is always done for all data you cannot delete individual files Note that the transmitter automatically overwrites the old data when the memory 1s full so manual
128. r to display the current recording parameters Example gt dsel tdf x TAE X gt dsel TAL e gt 114 M210762EN E Chapter 4 gt dir View Recorded Data Operation If the device is provided with the optional display the graphical display shows the data of the selected quantities one at a time See section Graphic History on page 67 for details about graphical display DIR Use the serial line and issue the DIR command to check the available files Without the data logger module the transmitter records five files five observation periods for each selected quantity The data logger raises the number of recorded files to six for each quantity Thus the total amount of the files varies between 5 and 24 See Table 11 on page 67 Select for example two quantities T and Tdf The last column illustrates the number of data points that has been stored in the file Example data logger module installed File description OO Ny On OP WN FE a E et Elo a gt dir 90 s intervals 12 min intervals 2 h intervals 12 h intervals 3 d intervals 12 d intervals 90 s intervals 12 min intervals 2 h intervals 12 h intervals 3 d intervals 12 d intervals Oldest data available Zo AS 00 00 00 00 EE 48 00 00 00 00 Z00F 05 3 0 ZOU e209 Z29 2090 705519 ZOO TOU S 25 2006 04 20 Ae a 26 ENEE SE E EE EE CAR SE BE O52 02 Los 00 EES Ber DK OZ E 00 UU E
129. riting 16 bit values in configuration registers they are always processed as signed integers in the range of 32768 32767 You shall use the floating point registers to write values outside this 16 bit signed integer range Maximum writable value is 32767 also for configuration registers that do not accept negative values Measurement Data Read Only Table 46 Measurement Data Registers Name __Float___iinteger__ Uait______ i ee oo Io o o oep e a osoo eene lan 3 0017 0018 0265 x0 01 g kg bo TEE pe SE En a Available measurements depend on the instrument configuration Values may be unavailable also in case of device failure Read status registers or exception status outputs to check for failures a Ca Va Ta Ca Va Ca Ca Va Ca Ca Va Ta Ca Va Ca Only real time data can be read from the instrument Data that is recorded in the transmitter s memory internal memory or data logger 182 module cannot be read through MODBUS M210762EN E Appendix C NOTE MODBUS Reference Status Registers Read Only Table 47 Status Registers Name Adress Description Bit field that represents the Error code bits 31 16 error codes listed in Table 32 on page 149 Active errors are set to 1 For example if bit 14 is set to 1 error code E14 is active Error information can retrieved also with function code 08 sub function 02 Basic status information of the DMT345 346 transmitter is also availab
130. robek vyhovuje Sm rnici pro n zk nap t 2006 95 EEC P ipojen s ov ho nap jen k nap jec mu modulu sm prov d t pouze opr vn n elektrik Neodpojujte nap jec modul od sn ma e p i zapnut m nap jen Nepfipojujte s ov nap jen k nap jec mu modulu pokud nen instalov n ve sn ma i DMT345 346 VZdy zapojte ochrannou zemnici svorku M210762EN E Chapter 3 Installation Galvanic Isolation for Output If galvanic isolation of the power supply line from the output signals is needed DMT345 346 can be ordered with optional output isolation module This module prevents harmful grounding loops NOTE Output isolation module is not needed when using the power supply module 0605 031 Figure 29 Galvanic Output Isolation Module Third Analog Output 2 ai KR mE ma ms mar mr 0503 030 Figure 30 Third Analog Output The following numbers refer to Figure 30 above 1 Flat cable pins 2 Screw terminals for signal line 3 DIP switches to select the output mode and range VAISALA 51 USER S GUIDE 32 Installation and Wiring l Disconnect the power In case the analog output module is installed in the factory continue with the step 4 Open the transmitter cover and and fasten the analog output module to the position for MODULE 2 with four screws Refer to Figure 2 on page 23 Connect the flat cable between the analog output module and the
131. s not delete any measurement data that is already in memory However the data of any removed quantity cannot be accessed unless the quantity is re activated first The data logger module has a real time clock with a battery back up The clock has been set to the Coordinated Universal Time UTC at the factory and its time cannot be set by the user The data that is stored in the logger s memory is timestamped using the logger s clock When date and time are set on the transmitter they are stored to the transmitter s memory as an offset from the time on the logger s clock When browsing the stored data the time offset is applied to the timestamps shown in the graphical history and data outputted from the serial port The timestamps in the data logger s memory remain as they were originally stored You can compensate for the clock drift less than 2 min year by setting the time on the transmitter This updates the time offset used on the display and the serial port You can set the time by using the keypad display or the serial commands M210762EN E Chapter 3 VAISALA Installation 0706 068 Figure 38 Data Logger Module The following numbers refer to Figure 38 above l Flat cable pins 2 Battery After a reset or a power up it will usually take at least 10 seconds before the data logger module is initialized The instrument will not start up before the data logger module is ready The indicator LED on the module w
132. s two independently configurable alarms for transmitters with the display keypad option Each alarm tracks a selected quantity with a freely configurable limit values Each alarm also has a configurable hysteresis value to prevent unnecessary triggering when the measurement fluctuates around an alarm limit The alarms can be configured for any quantity supported by the transmitter The configuration of the Display Alarms can only be done using the display keypad option You can have the alarm activate inside or outside the specified range by setting the limits correctly To have the alarm activate when the measured quantity is outside the specified range set the Act above limit higher than the Act below limit To have the alarm activate when the measured quantity is inside the range set the Act above limit lower than the Act below limit The alarm limits are shown on the graph display as thicker dotted lines When a display alarm is activated the automatic scaling of the graph display always keeps the limits in view M210762EN E Chapter 4 VAISALA Operation 20min iSmin Lonmin Smin NEXT EXIT 1103 062 Figure 44 Alarm Limit Shown on Graph Screen When an alarm is activated an alarm note is displayed on the display and the lights of the display will blink If the data logger module 1s installed the alarm note includes the time and date of the alarm ALARH Tar gt 5 00 C 1103 063 Figure 45 Display
133. sanslutningen f r bara anslutas till str mf rs rjningsmodulen av en beh rig elektriker Ta inte loss str mf rs rjningsmodulen fr n m taren n r str mmen r p Anslut inte str mf rs rjningsmodulen till n tet n r den inte r installerad 1 DMT345 346 m taren Anslut alltid en skyddande jordningsplint Questo prodotto conforme alla Direttiva sul basso voltaggio 2006 95 CEE La conduttura elettrica pu essere collegata al modulo di alimentazione elettrica soltanto da un elettricista autorizzato Non staccare l alimentazione elettrica dal trasmettitore quando acceso Non collegare la corrente elettrica al modulo di alimentazione elettrica se non installato nel trasmettitore DMT345 346 Collegare sempre il morsetto protettivo a terra 48 M210762EN E Chapter 3 VAISALA Installation Dette produkt er i overensstemmelse med direktivet om lavspzending 2006 95 EQS Netstr mskoblingen til ma kun tilsluttes str mforsyningsmodulet af en autoriseret elinstallat r Strgmforsyningsmodulet ma ikke Igsggres fra senderen mens sp ndingen er sluttet til Slut ikke netspendingen til str mforsyningsmodulet nar det ikke er installeret i DMT345 346 senderen Forbind altid den beskyttende jordklemme Dit product voldoet aan de eisen van de richtlijn 2006 95 EEG Laagspanningsrichtlijn De stroom kan aan de stroomtoevoer module aangesloten worden alleen door een bevoegde monteur
134. screws The transmitter 1s ready for use M210762EN E Chapter 3 CAUTION VAISALA Installation Connections to a 24 VAC Power Supply Separate floating supply for each transmitter is recommended see the upper part of Figure 27 on page 45 If you have to connect several transmitters or other instruments to one AC supply the phase must always be connected to the connector of each transmitter see the lower part of Figure 27 24 VAC POWER SUPPLY USE To prevent fire and or damage if either 24 VAC wire is grounded or connected to a 0 or GND terminal of any other device you must connect the same wire on the terminal also on this instrument No common loop RECOMMENDED transmitter 24vac Supply voltage S 24VAC supply voltage transmitter Common loop formed NOT recommended transmitter s e L CH CG supply voltage gt 24VAC PN g g disd A i commor line e CH supply voltage Oo la ON transmitter 0703 041 Figure 27 Connections to 24 VAC Power Supply 45 USER S GUIDE Optional Modules Power Supply Module The mains power connection may be connected to the power supply module only by an authorized electrician A readily accessible disconnect device shall be incorporated in the fixed wiring DW 4 Aa Figure 28 s ai lt i t AN e SCT d H H gt w KK D SS we
135. sert the probe into a reference temperature 5 Wait at least 30 minutes for the sensor to stabilize Follow the stabilization from the GRAPH display 6 Press READY when stabilized Enter the reference temperature using the arrow buttons When carrying out the two point adjustment proceed to the next adjustment point and carry out the procedure as described in the previous steps Note that the difference between the two temperature references must be at least 30 C Press OK Press YES to confirm the adjustment Press OK to return to the adjustment menu 9 Press EXIT to return to the basic display VAISALA 159 USER S GUIDE Adjusting Temperature Using Serial Line CT Use the serial line command CT to adjust the temperature 1 Press the ADJ button on the motherboard to open the adjustment mode 2 Remove the probe filter and insert the probe into the reference temperature 3 Type CT and press Enter Type C and press Enter to check if the reading is stabilized 4 Let the reading stabilize enter the reference temperature after the question mark and press Enter three times When having another reference temperature two point adjustment press Enter twice and insert the probe to the second reference When the reading is stabilized enter the second reference temperature after the question mark and press Enter Please note that the difference between the two temperature references must be at least 30 C Exa
136. t where x ON enabled default or OFF disabled 113 USER S GUIDE When using the RS 485 Interface with a 2 wire connection always disable echo When using a RS 232 RS 422 485 4 wire connection LAN or WLAN you can enable or disable it as you wish Data Recording Data recording function is always on and collects data automatically into the memory of the device If the optional data logger module is installed the transmitter uses it automatically Recorded data does not disappear from the memory when the power is switched off Collected data can be observed in a form of a graph in the graphical view of the display or it can be listed out by using the serial line or MI70 Link program Selecting Data Recording Quantities If the device is provided with the optional display the recorded quantities are always those selected for the display Up to three quantities can be recorded at a time See section Changing Quantities and Units on page 98 for instructions on how to select the display quantities with the keypad DSEL Use the serial line command DSEL xxx to select the quantities to be recorded if the transmitter is not equipped with display keypad You may also dump the logged data to the serial line in numeric form with the following commands Syntax DSEL xxx where Xxx Data recording quantity See Table 5 on page 20 for output available quantities Issue the command without parameters and press Ente
137. t send Tdf 5 8 IC H20 3715 ppm x 263 G KG gt send Tais e tE d gt 6 6 CC Tdta 5 9 C Tde 6 6 E Re 3696 ppmV x 2 3 g kg RH 13 9 RH a 2 7 g m3 aNTP 3 0 EE T 22 2 C df 28 1 C Assign an Alias for the SEND Command Use the SCOM command to assign a new command that works like the SEND command The standard SEND command of the transmitter will always function normally whatever the SCOM definition may be Command names are case insensitive SCOM lt cr gt Example assigning the command MEASURE as an alias for the SEND command gt scom Send command gt measure gt measure Tdf 5 8 C H20 3715 ppmvV x Zao GIG gt You can remove the SCOM definition by pressing Ese when entering the command name gt scom Send command gt measure lt esc gt gt M210762EN E Chapter 4 Operation Communicating with a Transmitter in POLL Mode OPEN When all transmitters on the RS 485 bus are in POLL mode the OPEN command sets one transmitter temporarily to STOP mode so that other commands can be entered OPEN aa lt cr gt where aa Address of the transmitter 0 255 CLOSE The CLOSE command switches the transmitter back to the POLL mode Example gt OPEN 2 opens the line to transmitter 2 other transmitters stay in POLL mode gt CRH for example calibration performed gt CLOSE line closed VAISALA 95 USER S GUIDE Formatting Serial Line Message Instead of using the
138. temperature adjustment Analog output adjustment VAISALA 151 USER S GUIDE Opening and Closing Adjustment Mode Open the transmitter cover The buttons needed in the adjustment are on the left hand side of the motherboard see Figure 2 on page 23 Press the ADJ button to enable the adjustment mode The indicator LED indicates the adjustment availability Table 33 Indicator Led Functions Indicator Led Function Description LED off adjustment locked LED on adjustment available LED blinking evenly measurement not stabilized LED blinking with short pulses performing Purge AutoCal Press the ADJ button again to disable the adjustment mode Fixed pressure compensation of 1013 25 hPa is used when in adjustment mode Adjustments should be performed at ambient pressures 152 Adjustment Information These data are shown on the device information see section Device Information on page 105 Use the display keypad to feed the adjustment information 1 Ifyou are not in the adjustment menu press the ADJ button on the motherboard to open the ADJUSTMENT MENU Press the arrow button to select Adjustment info 3 Select Date press SET Enter the date by using the arrow buttons Press OK 4 Select 1 press SET Enter information text including 17 characters at maximum by using the arrow buttons Press OK 5 Press EXIT to return to the basic display CTEXT and CDATE Use the serial line command CTEXT to enter
139. ternal EEPROM write error E12 E13 Add on module 1 or 2 connection Turn off the power and check the failure module connection Turn on the power range within the valid range Internal transmitter failure Remove the checksum error transmitter and return the faulty unit to of range voltage out of range 2 ine eee output 1 2 38 set incorrectly page 58 eegend C error in add on module 1 or C a a connection kaiaa padan module installed in Disconnect the power and change the incorrect add on module slot communication module to another module slot E29 Unknown incompatible module Ensure that the module is compatible Leg Sie 1 or2 E30 Internal analog voltage out of range _ Internal transmitter failure Remove the transmitter and return the faulty unit to Vaisala Service and the power supply can provide enough power for the instrument VAISALA 149 USER S GUIDE Technical Support For technical questions contact the Vaisala technical support by e mail at helpdesk vaisala com Provide at least the following supporting information Name and model of the product in question Serial number of the product Name and location of the installation site Name and contact information of a technically competent person who can provide further information on the problem Product Returns 150 If the product must be returned for service see www vaisala com services return html For conta
140. the Transmitter for Maintenance If you remove the transmitter from the process to send it to service etc leaving the cooling set in its place make sure you plug tightly the hole for the probe in the cooling element This will lessen the amount of condensation that builds up in the hole 40 M210762EN E Chapter 3 Wiring Installation Cable Bushings A single electrical cable with a screen and three to ten wires is recommended for power and analog serial connections The cable diameter should be 8 11 mm The number of cable bushings depends on the transmitter options See the following recommendations for the cable bushings 0605 026 Figure 24 Cable Bushings The following numbers refer to Figure 24 above 1 Cable for signal powering 8 11 mm 2 Cable for optional module 8 11 mm 3 Cable for optional power module 8 11 mm When there is high electric noise level for example near powerful electric motor in the operating environment it is recommended to use shielded cable or take care that the signal cables are separated from other cables VAISALA 41 USER S GUIDE Cable Grounding Ground the screen of the electrical cable properly to achieve the best possible EMC performance 0605 027 Figure 25 Grounding the Screen of Electrical Cable Refer to Figure 25 on page 42 when performing the procedure below Cut back outer sheath to desired length Cut back screen braiding or screen
141. the measurement point is equal to that of the process otherwise the moisture reading may be incorrect 110 100 measurement range 90 without the cooling fins 80 70 60 50 40 30 20 10 10 measurement range with the cooling fins Dewpoint temperature C 100 150 200 250 300 350 Temperature of measured gas C 0604 022 Figure 19 Measurement Ranges with and without the Cooling Fins Parts of the Cooling Set cooling 15 22 172 104 5 profile E screen tube cooling cooling bush yee flange e SECTION A M6x60 DIN912 A A AISI 316 0604 023 Figure 20 Parts of the Cooling Set Dimensions in mm VAISALA 37 USER S GUIDE lengthening max 50 125 D D 1 ZZ LSA 118 welding mounting AAs pipe M6x16 DIN912 AISI 316 0605 023 Figure 21 Mounting Flange Dimensions in mm General Probe and Cooling Set Mounting Instructions Follow these general mounting instructions to make the installation Note the additional instructions in the following sections regarding specific situations mounting with process shut down mounting with process running removing the transmitter for maintenance Appendix
142. tputs 0 005 C full scale External loads Current outputs 0 1V output 0 5V and 0 10V outputs recommended Digital outputs RS 232 RS 422 485 optional LAN optional WLAN optional Protocols ASCII commands MODBUS RTU MODBUS TCP Relay outputs optional 0 5 A 250 VAC SPDT EE optional LCD with backlight graphic trend eer ee Menu languages Chinese English Finnish French German Japanese Russian Spanish Swedish 166 M210762EN E Chapter 8 VAISALA Technical Data Table 42 Mechanics Specifications Both Models Property Cable bushing M20x1 5 for cable diameter 8 11mm 0 31 0 43 Conduit fitting User cable connector optional Option 1 M12 series 8 pin male Option 2 With plug female with 5 m 16 4 ft black cable Technical Specifications of Optional Modules Power Supply Module Operating voltage 100 240 VAC 50 60 Hz Connections screw terminals for 0 5 2 5 mm wire AWG 20 14 Bushing for 8 11 mm diameter cable Operating temperature 40 60 C 40 140 F Storage temperature 40 70 C 40 158 F UL file number E249387 Analog Output Module Outputs 0 20 mA 4 20 mA O 1V 0 5 V 0 10V Operating temperature range 40 60 C 40 140 F Power consumption Utt y max 30 mA Usur 0 5V 0 10V max 30 mA LU 20 mA max 60 mA External loads current outputs Max load cable loop resistance 0 IV
143. tsictevahectmtsaaiialeacntesencant 123 Measurement Based Relay Output Modes 008 123 Relay SE IDOINS ona eaten aieneteoneeaaes 123 EIERE Ee 125 Relay Indicating Transmitter Error Status cceee 125 Enabling Disabling Helayvs 127 Indication Led COpoeraton an 127 Setting Relay Outputs teeeeseeg ees eege Seege 127 Ee 128 Testing Operation of Helzays 130 PTE RE 130 Sensor len CT nana baipaud naniii na ranba iaiia 131 AUC EE 131 Atomatic tele EE 131 Manual AUtOG EE 132 SENSOR F UNG Cress ssasite decesesacastencses Mileadasoteie e 133 Starting and Configuring Sensor Purge ssson000nnnne00ea 133 Using Display Keypad Optional cccccccssseeeeeeees 133 Usno Seral EE 134 PURGE rtea a cet See tea daa eintda cass 134 PUR curom a 134 Sensor Wa MING einan aaa a aa 136 CHAPTER 5 MODBUS E 137 Overview of MODBUS Protocol Suppoft c esses 137 Taking MODBUS into Uee 138 Enabling Serial MODBUG ccccccsssssssseesseseseeeeeeeeeeeeees 139 Using Display Keypad Optional snssssnnnneennnnnnneennnnnne 139 using senal Line sieis SE 139 Enabling Ethernet MODBUG ccccesssssseeeeeeeneeeeeeeeees 141 Using Display Keypad Optional ccssesseeeeeeeeeeeeeees 141 Using o enal MGS curoes cat cede trehadest inte siaseehactncenadaseeledvcteatade 142 Diagnostic MODBUS Counters ccccceeeeeseeeeeeeeeeeeeeeeeneees 144 Viewing Counters Using Display Keypad
144. ture must be 0 lt T lt 140 C Humidity environment must be stable The maximum change in the dewpoint can be 2 C in 15 seconds NOTE AutoCal cannot operate if the above conditions are not fulfilled If the adjustment in the AutoCal reaches a preset maximum value or if the AutoCal correction fails for example because of unstable conditions anew AutoCal will take place later if the automatic AutoCal is turned on Automatic AutoCal As a default the automatic AutoCal in DMT345 and DMT346 is turned on In this mode the calibration takes place automatically if the dewpoint or temperature changes significantly typically more than 10 C However if there are no changes in the conditions the AutoCal will take place repeatedly after one hour from the last AutoCal VAISALA 131 USER S GUIDE 132 Manual AutoCal To ensure that AutoCal has taken place for obtaining the most accurate measurement in a very dry environment you can perform Autocal manually before measuring as follows 1 Open the Main Menu by pressing any of the A Tak arrow buttons 2 Select Measuring press the arrow button 3 Select Manual Auto al press the arrow button Press START to start AutoCal If the AutoCal conditions are not fulfilled a note appears on the display informing that the calibration cannot be made MEASURING 2 L AutoCal in progress 0706 014 Figure 64 Following AutoCal on the Display 5 Press EXIT to retur
145. ty with the provisions of the following EU directives Low Voltage Directive EMC Directive Conformity is shown by compliance with the following standards EN 60950 1 EN 61326 1 Electrical equipment for measurement control and laboratory use EMC requirements for use in industrial locations EN 550022 Information technology equipment Radio disturbance characteristics Limits and methods of measurement LE Transmitters with LAN or WLAN Interface This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation Operation is subject to the following two conditions 1 this device may not cause interference and 2 this device must accept any interference including interference that may cause undesired operation of the device This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more
146. uplex 115 2 kbaud 300VDC max 50 mA 32 RL gt 10kohm 55 80 C 67 176 F 1 5 mm2 AWGI16 40 60 C 40 140 F 40 85 C 40 185 F 5 95 RH max 60 mA 1OBASE T 1OOBASE TX 8P8C RJ45 DHCP automatic static Telnet MODBUS TCP 1 20 60 C 4 140 F 40 85 C 40 185 F 5 95 RH max 80 mA 802 11b RP SMA DHCP automatic static Telnet MODBUS TCP 1 WEP 64 128 WPA2 802 11i M210762EN E Chapter 8 VAISALA Data Logger Module Operating temperature range Storage temperature range Power consumption at 24V Logged parameters Logging interval Maximum logging period Logged points Accuracy of the clock Battery lifetime at 40 30 C 40 86 F at 30 60 C 86 140 F Technical Data 40 60 C 40 140 F 55 80 C 67 176 F max 10 mA up to four with trend min max values for each 10 s fixed 4 years 5 months 13 7 million points parameter better than 2 min year 7 years 5 years 169 USER S GUIDE Options and Accessories Table 43 Options and Accessories Order Code RELAY 1 O UO C E m O Relay module RS485 1 POWER 1 DCDC 1 Isolated RS485 Module Power Supply Module JAE 2 9 5 i oO gt Q O O D S O re Si S O S SES o D OD gt O C wech FILTERS or DMT345 HM47280SP Hi gt D OD
147. urns on again l SE GE 70 Open the Main Menu by pressing any of the A V lt P arrow buttons Select Display press the arrow button Select Backlight press the CHANGE button Select On Off Automatic press the SELECT button Press EXIT to return to the basic display M210762EN E Chapter 4 VAISALA Operation Display Contrast Setting Display contrast is automatically adjusted based on the ambient temperature However depending on the installation location and viewing direction it may be necessary to fine tune the contrast manually 1 Open the Main Menu by pressing any of the A V lt P arrow buttons Select Display press the arrow button Select Contrast press the ADJUST button Adjust the contrast by pressing the dk arrow buttons Press OK and EXIT to return to the basic display of ae ae a Keypad Lock Keyguard This function locks the keypad and prevents unintentional key presses 1 Keep pressing the left hand LZ button for 4 seconds to lock the keypad at any display 2 To unlock the keypad press the OPEN button for 4 seconds Menu PIN Lock You can prevent unauthorized changes of the device settings by activating the menu PIN lock When this function is activated the basic display graphical view and device information displays are available but access to the menus is locked The key symbol indicates the activation of this feature 1 Open the Main Menu by pressing any
148. wing information Current sensor operation for example AutoCal or Purge in progress Present or past unacknowledged errors Device information Current date and time only shown if data logger module installed Adjustment information fed by the user Measuring settings Information on Purge settings Display Alarm settings Serial interface information Network settings and status of the LAN and WLAN interfaces Analog output information Relay output information SERIAL INTERFACE Port type RS 232 19200 b s 8 H 1 Protocol STOP Echo is on 1103 064 Figure 59 Device Information on Display Proceed in the information views by pressing the MORE button as many times as you get the desired information You can browse through the information displays also with arrow buttons Press OK to return to the basic display 105 USER S GUIDE 106 D Use the serial line command to check the current transmitter configuration Command is similar but can also be used 1f the transmitter is in POLL mode Example gt DMT SLO of 3104 0 Serial number Batch number Adjust date ECHT EE Date Time Serial mode Baud PDS Output interval Address Echo Pressure Beer Chi LEE Eet enk be CRE EE low Cha eur high CH2 AZo low Ch AZO high Module 1 Module 2 gt D1120014 DO750009 2008 08 16 Helsinki FIN 20o0 0 e02 Oar 727 STOP t9200 N38 LOs 0 ON MOMS Ze Tee OFF Ol
149. without Mounting Plate Mount the housing without the mounting plate by fastening the transmitter to the wall with 4 screws for example M6 not provided 169 6 65 96 3 78 0804 066 Figure 4 Standard Mounting 26 M210762EN E Chapter 3 VAISALA Installation Wall Mounting with Wall Mounting Kit When mounting with wall mounting kit the mounting plate Vaisala order code 214829 can be installed directly on wall or onto a standard wall box also US junction box When wiring through back wall remove the plastic plug from the wiring hole in the transmitter before mounting d w 0604 009 Figure 5 Mounting with Wall Mounting Kit The following numbers refer to Figure 5 above 1 Plastic mounting plate 2 Mount the plate to wall with 4 screws M6 not provided 3 Arched side up 4 Fasten the transmitter to the mounting plate with 4 fixing screws M3 provided 5 Holes for wall junction box mounting 183 7 20 133 5 24 6 2 0 24 s 9 5 0 37 116 4 57 Q 59 2 32 0804 065 Figure 6 Dimensions of the Plastic Mounting Plate mm inch E USER S GUIDE Metal mounting plate is included in rain shield with installation kit and installation kit for pole or pipeline 0604 011 Figure 7 Mounting with Metal Wall Mounting Plate The fo
150. xample without data logger module File description VW FA OO OD d On OF GO ba Ei el Q kh VAISALA 90 s intervals 12 min intervals 2 h intervals 12 h intervals 3 d intervals 90 s intervals 12 min intervals 2 h intervals 12 h intervals 3 d intervals Oldest data available PAE Zs Io SC Ek SES Zs to EA 010 2009704 1L1 Z008 04 10 ZOUC O 5 3 1 ZO08 02 04 20070304 2003 0 4 11 EELER EE elt EE EE dl BKS 03 OS 033 dl 03 034 Oa 033 30 00 00 00 00 00 30 00 00 00 00 00 H 41 41 41 41 1 41 41 41 41 No of points 1555200 194400 19440 3240 540 135 Loo 00 194400 19440 3240 540 35 No of points 135 135 135 d 35 135 130 SRG ES LoS 135 115 USER S GUIDE 116 PLAY Use the PLAY command to output the selected file to the serial line If the data logger module is installed you can specify an interval to be outputted Data in the output is lt TAB gt delimited This is compatible with most spreadsheet programs Before giving the command set the local date and time with TIME and DATE commands if needed PLAY x start_date start_time end_date end_time lt cr gt where X Number of the data file that will be outputted range Q 18 The numbers correspond to the output of the DIR command refer to the example on page 115 Selecting number O will output all data files start date Starting date of the interval to be out
151. y monitors the quantity chosen for the relay output Any of the quantities available can be chosen Measurement Based Relay Output Modes Relay Setpoints When the measured value is in between the above and below values the relay is passive When choosing lower value as above value and higher value as below value the relay is passive when the measured value is not between the setpoints You can also set only one setpoint See Figure 61 on page 124 for illustrative examples of the different measurement based relay output modes VAISALA 123 USER S GUIDE Mode 1 Only above Mode 2 Only below setpoint set setpoint set measured value measured value time time Relay is active when value is Relay is active when value is above the setpoint below the setpoint Mode 3 Both setpoints Mode 4 Both setpoints set above gt below set above lt below measured value measured value time time Relay is active when value is Relay is released when value is outside the setpoints outside the setpoints A Active above setpoint value SX Relay is active NO C connected B Active below setpoint value e Relay is activated h Hysteresis value o Relay is released 1102 007 Figure 61 Measurement Based Relay Output Modes Mode 4 is usually used if an alarm needs to be triggered when the measured value exceeds a safe range The relay is active when measurement is in range and is released if the value
152. ys active when the MODBUS protocol is enabled Viewing Counters Using Display Keypad You can use the display keypad option to view and clear the counters Enter the Main Menu and navigate to System gt Diagnostics gt MODBUS Counters DIAGNOSTICS HODBUS COUNTERS All messages 0 Corrupted 0 Exceptions 0 Processed 0 Not responded to D CLEAR 1101 037 Figure 71 MODBUS Counters Viewing Counters Using Service Port Use the MODBUS command to view the counters MODBUS lt cr gt Example gt modbus Bus Messages Bus COMM error Bus exceptions slave messages Slave no resp Last message gt OOOO CH In addition to the diagnostic counters the last message received or transmitted is shown in hexadecimal format If the last message was a broadcast message the suppressed response message is shown The last message displayed may be incomplete if there is active MODBUS traffic while using the MODBUS command 144 M210762EN E Chapter 5 MODBUS MODBUS RTU only If the last received message was rejected because of bad CRC checksum the MODBUS command displays the message with corrected CRC last two bytes updated To clear the counters select again the MODBUS mode with the SMODE command gt smode modbus Disabling MODBUS VAISALA If you stop using MODBUS with the transmitter set the transmitter to some other operating mode using the display keypad option or the SMODE command For ex

DMT345 and DMT346 User's Guide - M210762EN-E

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