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USER'S GUIDE

Vaisala Multiparameter Transmitter

DPT145 for SF

6

Gas

M211371EN-B

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Содержание DPT145

Страница 1: ...USER S GUIDE Vaisala Multiparameter Transmitter DPT145 for SF6 Gas M211371EN B...

Страница 2: ...anical 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 Ple...

Страница 3: ...rks 11 License Agreement 11 Warranty 12 CHAPTER 2 PRODUCT OVERVIEW 13 Introduction to DPT145 13 Basic Features and Options 14 Transmitter Parts 15 Weather Shield 16 CHAPTER 3 FUNCTIONAL DESCRIPTION 17...

Страница 4: ...ial Number 38 Serial Line Output Commands 38 Start Measurement Output 38 Stop Measurement Output 39 Set Output Interval 39 Output a Reading Once 40 Configuring Measurement Parameters 40 Set Mixing Rat...

Страница 5: ...____________________________________________________________ 5 CHAPTER 7 TROUBLESHOOTING 53 Solving Typical Problems 53 Error Messages 54 Unknown Serial Settings 54 Technical Support 55 Product Return...

Страница 6: ...DPT145 Dewpoint Measurement Accuracy 58 Figure 12 DPT145 with DILO DN20 Adapter 61 Figure 13 DPT145 with ABB Malmkvist Adapter 61 Figure 14 DPT145 with Alstom G1 2 Adapter 62 Figure 15 DPT145 with DIL...

Страница 7: ...s general notes for the manual and the DPT145 Chapter 2 Product Overview introduces the features advantages and the product nomenclature Chapter 3 Functional Description describes the primary applicat...

Страница 8: ...e 2 Related Manuals Manual Code Manual Name M211369EN DPT145 Quick Guide Documentation Conventions Throughout the manual important safety considerations are highlighted as follows WARNING Warning aler...

Страница 9: ...a CAUTION Do not open the connection between the adapter and the transmitter They are connected at the factory and the connection should remain unopened to guarantee tightness Use tools only on the nu...

Страница 10: ...ment 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 an ESD workbench is not available...

Страница 11: ...t Radio disturbance characteristics Limits and methods of measurement Patent Notice The Vaisala Multiparameter Transmitter DPT145 for SF6 Gas is protected by for example the following patents and thei...

Страница 12: ...r more information and our standard warranty terms and conditions www vaisala com warranty Please observe that any such warranty may not be valid in case of damage due to normal wear and tear exceptio...

Страница 13: ...mechanical adapter DILO DN20 ABB Malmkvist or Alstom G1 2 The connection between the adapter and the transmitter is helium leak tested at the factory DPT145 combines online measurement of dewpoint pr...

Страница 14: ...absolute 1 10 bar 14 5 145 psi Temperature 40 80 C 40 176 F Measurement is configurable for pure SF6 or mixed gas Non isolated RS 485 digital output Easy verification of dewpoint measurement with the...

Страница 15: ...3 4 1 2 1107 033 DPT145 Transmitter Parts and Adapters 1 Port I Supply voltage only optional does not have to be used 2 Port II RS 485 line and supply voltage 3 Type label 4 Connection between transmi...

Страница 16: ...otection is not recommended The installation should be such that the transmitter is not exposed to direct rain icing or solar radiation A suitable weather shield is available from Vaisala The weather...

Страница 17: ...secondary decomposition products the amount of water vapor in the gas insulated system GIS should be kept to a minimum Also the SF6 system needs to be pressure tight for best insulation performance a...

Страница 18: ...several important advantages in using a transmitter with an integrated sensor Reduces installation work and cost Improves the leak tightness of the system as connection points are minimized Enables on...

Страница 19: ...ulfilled the auto calibration function is postponed until satisfactory conditions are reached Sensor Purge Sensor purge is also an automatic procedure that minimizes the drift at the wet end readings...

Страница 20: ...will display the last measured values before the sensor purge began Normal operation and output is typically achieved no later than 11 minutes after startup The sensor purge will repeat every 12 hours...

Страница 21: ...Serial operation mode is STOP and address is 0 To configure transmitters for operation on a common line you must give each transmitter a unique address range 0 255 and set their serial operation mode...

Страница 22: ...serial commands are provided in Chapter 5 Operation on page 31 Selecting the Location Online dewpoint measurement in still gas is much more demanding than pressure or temperature measurement A very ti...

Страница 23: ...antee tightness Use tools only on the nut of the adapter where the transport protection cap is connected NOTE Keep the transmitter dry and clean Do not remove the yellow transport protection cap befor...

Страница 24: ...mitter to the mechanical coupling and tighten by hand 3 Use a wrench to tighten the connection Turn from the adapter not from the transmitter body Use sufficient force to achieve a tight installation...

Страница 25: ...ield separately attach the transmitter to the weather shield before continuing this procedure Fit the clamp of the weather shield over the adapter not the transmitter body For ABB Malmkvist and Alstom...

Страница 26: ...ody Use sufficient force to achieve a tight installation The system must be leak free for accurate measurement If the weather shield is tilted after the installation you can straighten it by loosening...

Страница 27: ...le to the cable clamp on the underside of the weather shield Attach the cable using a crosshead screwdriver Note Let some of the cable hang from the back of the transmitter so that condensation cannot...

Страница 28: ...HIELD 1 2 3 4 2 4 1 3 1108 015 Figure 7 Wiring Non Isolated RS 485 Wire Colors for Vaisala Cables Pin Connection on Port I Connection on Port II Wire Color 1 VDC supply VDC supply Brown 2 RS 485 D0 Wh...

Страница 29: ...II Do not supply power from both ports 1 VDC 3 GND 2 4 1 3 15 28 VDC 1108 016 Figure 8 Wiring Power Supply Using Port I Stabilization of Dewpoint Reading After Installation After installation the tra...

Страница 30: ...USER S GUIDE____________________________________________________________________ 30 __________________________________________________________________ M211371EN B This page intentionally left blank...

Страница 31: ...ansmitter starts up After the start up is complete the transmitter will behave according to the configured serial mode In STOP mode the transmitter outputs the transmitter model and software version I...

Страница 32: ...he USB service cable is not connected Disconnect the cable if 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 dr...

Страница 33: ...settings category and check that the correct COM port is selected in the Serial line to connect to field Note You can check which port the USB cable is using with the Vaisala USB Instrument Finder pro...

Страница 34: ...S GUIDE____________________________________________________________________ 34 __________________________________________________________________ M211371EN B 0807 004 Figure 9 PuTTY Terminal Applicat...

Страница 35: ...tive errors FORM modifier string Set output format FRESTORE Restore factory settings HELP Show list of currently available serial commands INTV 0 255 S MIN H Set the continuous output interval for RUN...

Страница 36: ...smitter is in POLL mode but its address is unknown The transmitter will respond to the command even while in POLL mode Do not use the command if you have more than one transmitter on an RS 485 line Ex...

Страница 37: ...e currently active transmitter error messages Possible errors and their causes are listed in Table 10 on page 54 ERRS cr Example errs No errors Example one active error caused by physical damage to th...

Страница 38: ...ine The format of the measurement message is set with the FORM command R cr Example measurement message in default format r Tdf 12 5 C Tdfatm 13 6 C H2O 15561 ppm P 0 947 bara Pnorm 0 943 bara Rhoo 1...

Страница 39: ...terval Use the INTV command to change the output interval of the automatically repeating measurement messages The measurement messages are repeated in the RUN mode or after the R command has been give...

Страница 40: ...r where address Address of the transmitter range 0 255 Specifying the address is only necessary if the target transmitter is in POLL mode and has not been accessed with the OPEN command Example send T...

Страница 41: ...6 in the measurement environment N2MOLW weight cr where weight Molar weight of the other gas in kg mol The default is 2 8013401e 02 which is the molar mass of N2 Example n2molw OTHER GAS MOLAR 2 80134...

Страница 42: ...u can return to the default format using the FORM command Example of default output continuous output from RUN mode Tdf 8 1 C Tdfatm 8 2 C H2O 10870 ppm P 1 002 bara Pnorm 0 992 bara Rhoo 6 0 kg m3 T...

Страница 43: ...n Line feed String constant length 1 15 characters xxx ASCII code value decimal of a special character for example 027 for ESC ADDR Transmitter address 0 255 ERR Currently active transmitter errors i...

Страница 44: ...Serial Line Operating Mode Use the SMODE command to set the start up operating mode of the serial line SMODE mode cr where mode STOP RUN or POLL Table 8 Selection of Output Modes Mode Measurement Out...

Страница 45: ...19200 N 8 1 you will have to power off the MI70 before it can find the transmitter you will not be able to connect it on the fly SERI b p d s cr where b baud rate 300 600 1200 2400 4800 9600 or 19200...

Страница 46: ...asing the value by one increases the delay by 4 milliseconds For example the default value is 10 which equals a 40 ms answer delay SDELAY delay cr where delay Serial line delay range 0 255 Example sde...

Страница 47: ...ow long the transmitter has been operating since it was last reset or powered up TIME cr Example time Time 00 51 41 Reset Transmitter Use the RESET command to reset the transmitter RESET cr When the R...

Страница 48: ...USER S GUIDE____________________________________________________________________ 48 __________________________________________________________________ M211371EN B This page intentionally left blank...

Страница 49: ...stened lint free cloth Do not immerse the transmitter in liquid and do not use cleaning agents or solvents Calibration and Adjustment DPT145 is fully calibrated as shipped from factory If there is a r...

Страница 50: ...ecked simultaneously You can also check the reference probe and the DPT145 separately if they cannot be connected at the same time Perform the check as follows 1 Place the reference probe and the DPT1...

Страница 51: ...mbined measurement uncertainty of the DPT145 and the reference probe 8 Write down the results and repeat the comparison for each parameter you want to check 9 If adjustment is required contact a Vaisa...

Страница 52: ...r Maintenance There are no user serviceable parts inside the transmitter If there is a problem with your transmitter that you are unable to solve yourself or with the help of the Vaisala Helpdesk cont...

Страница 53: ...on page 55 Table 9 Troubleshooting Table Problem Possible Causes and Solutions Dewpoint reading is not stable after installation reading indicates slow drying This is normal behavior after installatio...

Страница 54: ...ngs contact a Vaisala service center Unknown Serial Settings If you are not sure what the current serial settings of your transmitter are follow the steps below to connect to the transmitter This proc...

Страница 55: ...k 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 i...

Страница 56: ...USER S GUIDE____________________________________________________________________ 56 __________________________________________________________________ M211371EN B This page intentionally left blank...

Страница 57: ...100 kg m3 ppm moisture by volume 40 40 000 ppm Dewpoint converted to atmospheric pressure 65 30 C 85 86 F Table 13 Performance Property Description Value Dewpoint accuracy 3 C 5 4 F see Figure 11 on...

Страница 58: ...Not recommended for continuous measurement Dewpoint measurement low limit 70 Accuracy not specified Accuracy 3 C Td 1107 032 Figure 11 DPT145 Dewpoint Measurement Accuracy Table 14 Operating Environm...

Страница 59: ...176 F shipment package 20 80 C 4 176 F Mechanical connection DILO DN20 ABB Malmkvist or Alstom G1 2 compatible connector Weight with DILO adapter 765 g 27 0 oz Electromagnetic compatibility Complies...

Страница 60: ...scription Order Code Connection cable for MI70 Indicator DM70 Dewpoint Meter 219980 USB connection cable 219690 Protection plug for connector 218675SP 1 5 m Shielded PUR cable with 90 connector 231519...

Страница 61: ..._____________________________ 61 Dimensions in mm 7 160 83 20 30 6 AW 32 29 5 M45x2 AW 50 57 7 7 160 83 20 30 6 AW 32 29 5 M45x2 AW 50 57 7 1108 017 Figure 12 DPT145 with DILO DN20 Adapter 63 5 20 145...

Страница 62: ..._______________________________ M211371EN B 20 6 5 70 152 60 7 29 5 AW27 33 20 6 5 70 152 60 7 G1 2 ISO 228 1 29 5 AW27 33 1108 019 Figure 14 DPT145 with Alstom G1 2 Adapter 8 37 44 44 80 200 2 5 59 5...

Страница 63: ...www vaisala com M211371EN...

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