Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Related Manuals for Vaisala DPT145
Summary of Contents for Vaisala DPT145
- Page 1 USER'S GUIDE Vaisala Multiparameter Transmitter DPT145 for SF M211371EN-B...
- Page 2 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...
-
Page 3: Table Of Contents
MPS1 Multiparameter Sensor ..........18 DRYCAP® Technology ............18 Auto-Calibration ............. 19 Sensor Purge ..............19 BAROCAP® Technology ............ 19 DPT145 Startup Sequence ............ 20 CHAPTER 4 INSTALLATION.................... 21 Transmitter Configuration Before Installation ....21 Selecting the Location ............22 Warning –... - Page 4 USER'S GUIDE____________________________________________________________________ Standard Wiring..............28 Alternate Wiring for Power Supply ........29 Stabilization of Dewpoint Reading After Installation ..29 CHAPTER 5 OPERATION....................31 Transmitter Start-Up...............31 Serial Communication............32 Connecting to the Serial Interface ........32 Installing the Driver for the USB Service Cable .....32 Terminal Application Settings..........33 List of Serial Commands ............35 Device Information ..............36 Show Device Information ............36...
- Page 5 Solving Typical Problems ............. 53 Error Messages ..............54 Unknown Serial Settings ............54 Technical Support ..............55 Product Returns ..............55 CHAPTER 8 TECHNICAL DATA ..................57 Specifications ................. 57 Spare Parts and Accessories..........60 Dimensions in mm ..............61 VAISALA ________________________________________________________________________ 5...
- Page 6 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 DILO DN20 Adapter and Weather Shield...62 List of Tables Table 1 Manual Revisions ...............8 Table 2 Related Manuals.................8 Table 3 Output Parameters of DPT145 ..........13...
-
Page 7: Chapter 1 General Information
Chapter 1 ________________________________________________________ General Information CHAPTER 1 GENERAL INFORMATION This chapter provides general notes for the manual and the DPT145. About This Manual This manual provides information for installing, operating, and maintaining Vaisala Multiparameter Transmitter DPT145 for SF Gas. Contents of This Manual... -
Page 8: Version Information
Related Manuals Table 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 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. -
Page 9: Safety
Chapter 1 ________________________________________________________ General Information Safety The DPT145 transmitter delivered to you has been tested for safety and approved as shipped from the factory. Note the following precautions: WARNING Ground the product and verify outdoor installation grounding periodically to minimize shock hazard. -
Page 10: Esd Protection
USER'S GUIDE____________________________________________________________________ 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. It is possible to damage the product, however, by delivering electrostatic discharges when touching, removing, or inserting any objects inside the equipment housing. -
Page 11: Regulatory Compliances
United States and/or other countries. License Agreement All rights to any software are held by Vaisala or third parties. The customer is allowed to use the software only to the extent that is provided by the applicable supply contract or Software License Agreement. -
Page 12: Warranty
USER'S GUIDE____________________________________________________________________ Warranty Visit our Internet pages for 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, exceptional operating conditions, negligent handling or installation, or unauthorized modifications. -
Page 13: Chapter 2 Product Overview
RS-485 output. Its compact size makes it well suited for integration into OEM systems. DPT145 is always delivered with an integrated 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. -
Page 14: Basic Features And Options
USER'S GUIDE____________________________________________________________________ Basic Features and Options - Utilizes the Vaisala MPS1 multiparameter sensor with Vaisala’s BAROCAP® and DRYCAP® technologies. - Measurement ranges of measured parameters: - Dewpoint -50 ... +30 °C (-58 ... +86 °F) T - Pressure, absolute 1 ... 10 bar (14.5 ... 145 psi) - Temperature -40 ... -
Page 15: Transmitter Parts
Chapter 2 __________________________________________________________ Product Overview Transmitter Parts 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 transmitter body and adapter –... -
Page 16: Weather Shield
1108-022 Figure 2 Weather Shield DPT145 is assembled to the weather shield at the factory if the weather shield is ordered with the transmitter. Weather shields are also available separately. 16 __________________________________________________________________ M211371EN-B... -
Page 17: Functional Description
There is always some diffusion of water molecules from high ambient water vapor pressure to low vapor pressure inside the system. The more connection points the higher the diffusion rate. DPT145 is ideally suited to the online monitoring of dewpoint, pressure, and temperature in such a system. -
Page 18: Sensor Technology
USER'S GUIDE____________________________________________________________________ Sensor Technology MPS1 Multiparameter Sensor DPT145 combines Vaisala’s proven DRYCAP® sensor technology for industrial dewpoint measurement with BAROCAP® pressure sensor technology. Both technologies are integrated on the same MPS1 multiparameter sensor element, allowing for a highly compact and versatile transmitter. -
Page 19: Auto-Calibration
BAROCAP® Technology The BAROCAP® silicon capacitive absolute pressure sensor was developed by Vaisala for barometric pressure measurement applications. The BAROCAP® sensor has excellent hysteresis and repeatability characteristics, low temperature dependence, and a very good long-term stability. -
Page 20: Dpt145 Startup Sequence
USER'S GUIDE____________________________________________________________________ DPT145 Startup Sequence When the transmitter is powered up, it will perform the sequence shown in Figure 4 below. After a five-second startup, the transmitter will measure normally for five minutes, after which it will perform the sensor purge and auto-calibration functions. This can take up to six minutes, during which time the output is frozen: it will display the last measured values before the sensor purge began. -
Page 21: Chapter 4 Installation
, and the molar weight of the other gas. An easy way to configure the measured gas is to connect the DPT145 to the MI70 indicator using the MI70 connection cable (Vaisala order code 219980). You can change the settings in the Measurement Settings menu. -
Page 22: Selecting The Location
USER'S GUIDE____________________________________________________________________ For full configuration options, use the USB service cable and a terminal program on a PC. Instructions for using the serial line and the serial commands are provided in Chapter 5, Operation, on page Selecting the Location Online dewpoint measurement in still gas is much more demanding than pressure or temperature measurement. -
Page 23: Warning - Read Before Installation
Do not drop or hit the transmitter. The sensor is fragile and may break from a sudden shock. When transporting the transmitter, use the original shipping box from Vaisala. 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. -
Page 24: Installation Without Weather Shield
USER'S GUIDE____________________________________________________________________ Installation Without Weather Shield 1. Remove the yellow transport protection plug when you are ready to install the transmitter. 2. Install the transmitter 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... -
Page 25: Installation With Weather Shield
Chapter 4 _______________________________________________________________ Installation Installation With Weather Shield 1. When DPT145 is ordered with the weather shield, the transmitter is delivered already attached to the shield. If you have ordered the weather shield separately, attach the transmitter to the weather shield before continuing this procedure. - Page 26 USER'S GUIDE____________________________________________________________________ 4. Install the transmitter to the mechanical coupling and tighten by hand. Try to keep the weather shield level. 5. Use a wrench to tighten the connection. Turn from the adapter, not from the transmitter body! Use sufficient force to achieve a tight installation.
- Page 27 For cables with a straight connector: move the rubber plug to the bottom hole and route the cable from the back of the weather shield. 7. Replace the weather shield cover using an 8 mm box-end wrench. VAISALA _______________________________________________________________________ 27...
-
Page 28: Wiring
15 ... 28 VDC RS-485 + RS-485 - SHIELD 1108-015 Figure 7 Wiring Non-Isolated RS-485 Wire Colors for Vaisala Cables Connection on Port I Connection on Port II Wire Color VDC supply+ VDC supply+ Brown RS-485 D0-... -
Page 29: Alternate Wiring For Power Supply
In still, dry gas it takes a long time until vapor pressure inside the measurement cell reaches equilibrium with the main gas tank. It is not unusual for the stabilization of the dewpoint reading to take several days after installation. VAISALA _______________________________________________________________________ 29... - Page 30 USER'S GUIDE____________________________________________________________________ This page intentionally left blank. 30 __________________________________________________________________ M211371EN-B...
-
Page 31: Chapter 5 Operation
For a description of the modes, see section Set Serial Line Operating Mode on page 44. For a description of how the diagnostic functions of the sensor affect the availability of live measurement at start-up, see section DPT145 Startup Sequence on page 20. VAISALA _______________________________________________________________________ 31... -
Page 32: Serial Communication
Serial Communication Connecting to the Serial Interface DPT145 can be connected to a PC using the RS-485 line on Port II. It is recommended that you use the USB service cable (Vaisala order code 219690) for the connection, since the cable also provides the operating power from the USB port. -
Page 33: Terminal Application Settings
Stop bits Flow control None The steps below describe how to connect to the DPT145 using the PuTTY terminal application for Windows (available for download at www.vaisala.com) and a USB serial interface cable: Connect the USB serial interface cable between your PC and the RS-485 port of DPT145 (port II). -
Page 34: Figure 9 Putty Terminal Application
USER'S GUIDE____________________________________________________________________ 0807-004 Figure 9 PuTTY Terminal Application 34 __________________________________________________________________ M211371EN-B... -
Page 35: List Of Serial Commands
PNORMT [-100 ... 100] Show or set the temperature for pressure normalization MIXRATIO [0 ... 100] Show or set ratio (%) of SF in the measured environment N2MOLW [weight] Show or set molecular weight of other gas VAISALA _______________________________________________________________________ 35... -
Page 36: Device Information
?? command even while in POLL mode. Do not use the ?? command if you have more than one transmitter on an RS-485 line. Example: DPT145 1.0.23 Serial number : F4040007 Batch number : F3420050... -
Page 37: Show Currently Active Errors
T MEAS error Show Command List Use the HELP command to show a list serial commands: HELP<cr> Example: help ADDR CLOSE ERRS FORM FRESTORE INTV OPEN RESET SDELAY SEND SERI SMODE SNUM TIME UNIT VERS PNORMT MIXRATIO N2MOLW VAISALA _______________________________________________________________________ 37... -
Page 38: Show Firmware Version
USER'S GUIDE____________________________________________________________________ Show Firmware Version VERS<cr> Example: vers DPT145 1.0.23 Show Serial Number SNUM<cr> Example: snum Serial number : F4040007 Serial Line Output Commands Start Measurement Output Use the R command to start the continuous outputting of measurement values as an ASCII text string to the serial line. The format of the measurement message is set with the FORM command. -
Page 39: Stop Measurement Output
= "S", "MIN", or "H" The shortest output interval (with n = 0) outputs the measurement messages as quickly as the transmitter’s internal measurement cycle produces them, without additional delay. Example: intv 1 min Output interval: 1 MIN VAISALA _______________________________________________________________________ 39... -
Page 40: Output A Reading Once
USER'S GUIDE____________________________________________________________________ Output a Reading Once Use the SEND command to output a single measurement message. The output message is sent in the format that has been set using the FORM command. SEND [address]<cr> 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. -
Page 41: Set Molar Weight Of Other Gas
Use the PNORMT command to set the temperature that is used to calculate the normalized pressure parameter. PNORMT [t]<cr> where t = Temperature in Celsius, range -100 ... 100. The default is 20. Example: pnormt 20 P_NORM_T 20.00 'C VAISALA _______________________________________________________________________ 41... -
Page 42: Set Measurement Output Format
USER'S GUIDE____________________________________________________________________ Set Measurement Output Format Use the serial line command FORM to change the measurement message sent by the transmitter. You can freely define the output message to include the desired parameters, formatting options, text strings, and additional fields. FORM [modifier string]<cr>... -
Page 43: Table 6 Form Command Parameters
Modulus-256 checksum of message sent so far, ASCII encoded hexadecimal notation Modulus-65536 checksum of message sent so far, ASCII encoded hexadecimal notation NMEA xor-checksum of message sent so far, ASCII encoded hexadecimal notation VAISALA _______________________________________________________________________ 43... -
Page 44: Select Unit
USER'S GUIDE____________________________________________________________________ Select Unit Use the UNIT command to select metric or non-metric output units. UNIT [x]<cr> where Selects the unit type to output: m = metric units, for example, Celsius n = nonmetric units, for example, Fahrenheit Example: unit m Units : Metric Configuring Serial Line Operation... -
Page 45: Set Serial Line Settings
If multiple transmitters share the same serial line, each transmitter must have a different address. For a description of the serial interface modes, see section Set Serial Line Operating Mode on page 44. ADDR [address]<cr> where address Transmitter address, range 0 ... 255. Example: addr Address VAISALA _______________________________________________________________________ 45... -
Page 46: Set Serial Line Response Time
Use the OPEN command to connect to a transmitter that is in POLL mode. OPEN [address]<cr> where address = Transmitter address, range 0 ... 255. Example (target transmitter in POLL mode, with address 5): open 5 DPT145 5 line opened for operator commands 46 __________________________________________________________________ M211371EN-B... -
Page 47: Closing The Connection To A Transmitter In Poll Mode
SMODE command. Restore Factory Settings Use the FRESTORE command to restore the factory settings to the transmitter. All user settings will be lost. FRESTORE<cr> VAISALA _______________________________________________________________________ 47... - Page 48 USER'S GUIDE____________________________________________________________________ This page intentionally left blank. 48 __________________________________________________________________ M211371EN-B...
-
Page 49: Chapter 6 Maintenance
DM70 hand-held dewpoint meter, or an MI70 indicator with another DPT145. If the field check indicates that the DPT145 is not within its accuracy specifications, contact a Vaisala Service Center or your local Vaisala representative to have the DPT145 adjusted. -
Page 50: Field Check Using An Mi70 Indicator
In the procedure below, the readings of the transmitter and the reference NOTE probe are checked 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: Place the reference probe and the DPT145 in the reference environment. -
Page 51: Figure 10 Comparing Dewpoint Readings On Mi70
Vaisala representative to have the DPT145 adjusted. NOTE Some notes on using the MI70 indicator with the DPT145: - If you disconnect the DPT145 while the MI70 indicator is on, the quantities measured will remain on the screen, but no measurement will be shown. -
Page 52: Repair 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, contact a Vaisala Service Center to have the transmitter repaired. -
Page 53: Chapter 7 Troubleshooting
FRESTORE command. If you are unable to solve your problem with the transmitter, contact Vaisala technical support. See section Technical Support on page 55. Table 9... -
Page 54: Error Messages
Table 10 Error Messages Error Message Possible Cause and Solution T MEAS error MPS1 sensor damaged or missing. Contact a Vaisala service center. F meas error Voltage error Supply voltage out of range. Check and correct. Voltage too low error Program flash check sum error Internal transmitter error. -
Page 55: Technical Support
Chapter 7 ___________________________________________________________ Troubleshooting 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... - Page 56 USER'S GUIDE____________________________________________________________________ This page intentionally left blank. 56 __________________________________________________________________ M211371EN-B...
-
Page 57: Technical Data
Chapter 8 ____________________________________________________________ Technical Data CHAPTER 8 TECHNICAL DATA This chapter provides the technical data of the DPT145. Specifications Table 11 Measured Parameters Parameter Measured Range Dewpoint -50 ... +30 °C (-58 ... +86 °F) Pressure, absolute 1 ... 10 bar (14.5 ... 145 psi) Temperature -40 ... -
Page 58: Figure 11 Dpt145 Dewpoint Measurement Accuracy
Accuracy not specified Dewpoint measurement low limit -40 -30 -20 -10 Temperature of measured gas (°C) 1107-032 Figure 11 DPT145 Dewpoint Measurement Accuracy Table 14 Operating Environment Property Description / Value Operating temperature of electronics -40 … +60 °C (-40 ... +140 °F) Pressure 0 …... -
Page 59: Table 16 General
Chapter 8 ____________________________________________________________ Technical Data Table 16 General Property Description / Value Sensor Vaisala MPS1 multiparameter sensor Operating voltage 15 ... 28 VDC 20 ... 28 VDC in cold temperatures (-40 ... -20 °C (-40 ... -4 °F)) Supply current... -
Page 60: Spare Parts And Accessories
USER'S GUIDE____________________________________________________________________ Spare Parts and Accessories Table 17 DPT145 Spare Parts and Accessories Description Order Code Connection cable for MI70 Indicator 219980 / DM70 Dewpoint Meter USB connection cable 219690 Protection plug for connector 218675SP 1.5 m Shielded PUR cable with 90° connector 231519SP 3m Shielded PUR cable with 90°... -
Page 61: Dimensions In Mm
Chapter 8 ____________________________________________________________ Technical Data Dimensions in mm M45x2 M45x2 57.7 57.7 1108-017 Figure 12 DPT145 with DILO DN20 Adapter M30x2 M30x2 AW27 AW27 53.5 53.5 63.5 63.5 145.5 145.5 AW36 AW36 1108-018 Figure 13 DPT145 with ABB Malmkvist Adapter... -
Page 62: Figure 14 Dpt145 With Alstom G1/2" Adapter
USER'S GUIDE____________________________________________________________________ G1/2 ISO 228-1 AW27 AW27 1108-019 Figure 14 DPT145 with Alstom G1/2" Adapter 1108-020 Figure 15 DPT145 with DILO DN20 Adapter and Weather Shield 62 __________________________________________________________________ M211371EN-B... - Page 63 *M211371EN*...