USER'S GUIDE Vaisala CARBOCAP® Carbon Dioxide, Temperature, and Humidity Transmitters GMW90 Series M211659EN-B
PUBLISHED BY Street address: Mailing address: Phone: Fax: Vanha Nurmijärventie 21, FI-01670 Vantaa, Finland P.O. Box 26, FI-00421 Helsinki, Finland +358 9 8949 1 +358 9 8949 2227 Visit our Internet pages at www.vaisala.com.
_________________________________________________________________________________ Table of Contents CHAPTER 1 GENERAL INFORMATION ............................................................................ 7 About This Manual ................................................................... 7 Contents of This Manual ....................................................... 7 Version Information ............................................................... 8 Related Manuals .............................
User's Guide _______________________________________________________________________ Connecting a Common AC Power Supply to Several Transmitters ......................................................................... 30 CHAPTER 4 OPERATION ................................................................................................. 31 Display ..................................................................................... 31 Startup Screens .......................................................
_________________________________________________________________________________ Clear User Adjustment of T Measurement .................... 58 Enter Calibration and Adjustment Information .................... 58 Testing Commands ................................................................ 59 Test Analog Outputs ........................................................... 59 Other Commands ................................................................... 60 Enable Advanced Serial Commands ............
User's Guide _______________________________________________________________________ BACnet Protocol Implementation Conformance Statement ................................................................................ 83 Transmitter Models and Objects ........................................... 85 Device Object .......................................................................... 86 Carbon Dioxide Object ........................................................... 88 Temperature Object ................
_________________________________________________________________________________ List of Figures 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 GMW90 with Visible Display and Indicator LEDs ....................
User's Guide _______________________________________________________________________ List of Tables 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
Chapter 1 _________________________________________________________ General Information CHAPTER 1 GENERAL INFORMATION This chapter provides general notes for the manual and the products that are covered. About This Manual This manual provides information for installing, operating, and maintaining GMW90 series transmitters. All transmitter models in the series are covered, which means that some information in the manual is model-specific.
User's Guide _______________________________________________________________________ Version Information Table 1 Manual Code M211659EN-B M211659EN-A Manual Revisions Description April 2014. This manual. Added transmitter models with analog outputs. Updated BACnet reference appendix. November 2013. First version.
Chapter 1 _________________________________________________________ General Information Safety The transmitter delivered to you has been tested and approved as shipped from the factory. Note the following precautions: WARNING Connect only de-energized wires. CAUTION If you connect more than one transmitter to a single 24 VAC transformer, always connect the phase (~) to the +Vs connector in each transmitter. CAUTION The trimmers only turn 135 degrees each way, less than half a rotation.
User's Guide _______________________________________________________________________ Recycling Recycle all applicable material. Dispose of the unit according to statutory regulations. Do not dispose of with regular household refuse.
Chapter 1 _________________________________________________________ General Information Trademarks CARBOCAP® is a registered trademark of Vaisala Oyj. All other trademarks are the property of their respective owners. Software License This product contains software developed by Vaisala. Use of the software is governed by license terms and conditions included in the applicable supply contract or, in the absence of separate license terms and conditions, by the General License Conditions of Vaisala Group.
User's Guide _______________________________________________________________________ CHAPTER 2 PRODUCT OVERVIEW This chapter introduces the GMW90 series transmitters. Introduction to GMW90 Series GMW90 series transmitters are wall-mount transmitters for building automation applications. All GMW90 series transmitters measure carbon dioxide (CO2) and temperature (T), and some models also include humidity measurement.
Chapter 2 ___________________________________________________________ Product Overview GMW90 Series Transmitters Table 4 below lists the most important differences between the GMW90 series transmitter models. For technical specifications, see Chapter 7, Technical Data, on page 79.
User's Guide _______________________________________________________________________ Output Parameters Explained Table 5 Parameters Supported by GMW90 Series Parameter Symbol Carbon CO2 dioxide Temperature T NOTE Unit(s) ppm °C °F % Relative humidity RH Dewpoint Td °C °F Dewpoint Tdf °C °F Dewpoint depression Wet bulb temperature dTd °C °F °C °F Absolute humidity Mixing ratio a Enthalpy h Tw x g/m3 gr/ft3 g/kg gr/lb kJ/kg btu/lb Description Concentration of carbon dioxide gas (CO2).
Chapter 2 ___________________________________________________________ Product Overview Transmitter parts 1 2 7 3 8 9 4 10 5 11 6 1310-038 Figure 2 Transmitter Parts - Outside 1 = Locking screw for mounting base. Not included, M3×6 recommended. 2 = Inlet for CO2 calibration gas. Use a 3 mm inner diameter silicone tube and 0.4 l/min flow. 3 = Adjustment trimmers. 4 = Service port. 5 = Window for display (only in models where the display is visible) 6 = Locking screw for slide.
User's Guide _______________________________________________________________________ 1 1201-005 Figure 3 Opening the Transmitter 1 = Push tab down with a screwdriver to open the transmitter. To open, use a screwdriver to push down the tab that holds the transmitter cover and mounting base together. Pull the mounting base away from the cover, starting from the top. To close, connect the bottom of the transmitter first, and tilt the top forward to close the tab. Do not push on the display.
Chapter 2 ___________________________________________________________ Product Overview 1 9 2 10 6 11 3 7 8 4 12 13 5 14 15 1310-039 Figure 4 1 2 3 4 5 = = = = = 6 = 7 8 9 10 = = = = 11 = 12 = 13 = 14 = 15 = Transmitter Parts – Inside Mounting base. Opening for cable (wiring from top). Terminal label. Opening for cable (wiring from behind, recommended). Label for RS-485 baud rate DIP switch settings. Included only on digital models.
User's Guide _______________________________________________________________________ Decorative Cover Option The decorative cover is an installation accessory for HMW90 and GMW90 series transmitters that can be used to hide the transmitter from view. The cover material is transparent polycarbonate, but the idea is to customize it to match the wall the transmitter is on. There are two easy ways to change the cover’s appearance: - Paint the cover to the same color as the wall.
Chapter 3 ________________________________________________________________ Installation CHAPTER 3 INSTALLATION This chapter provides you with information that is intended to help you install the GMW90 series transmitters. Configuration Before Installation If you need to change the settings of the transmitter, it is best to do this before it has been installed. Available configuration options are different for analog output models (such as GMW93) and digital output models (for example, GMW95).
User's Guide _______________________________________________________________________ DIP Switches of Analog Output Models ric et V -M ..5 on N Td 0. C u ric et A 0m -M 2 n . . o N Td 0. om st 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 ric RH 0V et ..1 0. D M IP GMW93 C m to us ric RH mA et 0 .2 4. D M IP GMW94 1402-027 Figure 6 DIP 1 2 DIP Switch Settings of Analog Output Models Position Non-metric Metric Td RH 3 4 5 6 7 8 NOTE 0...5V or 0...20 mA 0...10V or 4...
Chapter 3 ________________________________________________________________ Installation Changing Between DIP and Custom Configuration If you change the position of DIP switch 8, note the following: When changing from DIP to Custom: The DIP settings that were used when the power was last on are carried over to the custom settings at next power up. When changing from Custom to DIP: Current custom settings are overwritten by the settings from the DIP switches at next power up.
User's Guide _______________________________________________________________________ DIP Switches of Digital Output Models Modbus A B Parity Even Non-Metric C 128 64 32 16 8 4 2 1 ON ON 1 2 3 4 5 6 7 8 Baud Rate Metric Parity None BACnet 1 2 3 4 5 6 7 8 Address (Binary Weighting) 1209-016 Figure 7 DIP 1 2 ...
Chapter 3 ________________________________________________________________ Installation Dip switches marked Address (Binary Weighting) set the MAC address of the GMW90 series digital transmitter. The address is encoded in eight bit binary form, with each numbered switch representing a single bit.
User's Guide _______________________________________________________________________ Selecting Location The conditions at the location should represent well the area of interest. Do not install the transmitter on the ceiling. Avoid placing the transmitter near heat and moisture sources, close to the discharge of the supply air ducts, and in direct sunlight. 1111-070 Figure 9 Selecting Transmitter Location Use the mounting holes to attach the mounting base securely.
Chapter 3 ________________________________________________________________ Installation Installing the Mounting Base Use the mounting holes to attach the mounting base securely. Use at least two screws (not included). The arrow on the mounting base must point straight up after installation. Proper orientation is important: air must flow through the vents on the bottom and top. 1310-043 Figure 10 Installing the Mounting Base Wiring Connect the wiring to the screw terminals on the mounting base.
User's Guide _______________________________________________________________________ 1310-044 Figure 11 Wiring from Behind (Recommended) 1310-045 Figure 12 Wiring from Above 26 ___________________________________________________________________ M211659EN-B
Chapter 3 ________________________________________________________________ Installation Wiring GMW93R/RA Recommended wiring for long cables: GND RH+ T+ CO2+ -Vs +Vs Power supply 18 ... 35 VDC or 24 VAC ±20% V V V RL = 10 kΩ min. 1402-032 Figure 13 Wiring GMW93R/RA -Vs terminal is internally connected to GND terminal, so you can also use the -Vs terminal as common ground. Maximum cable resistance is 2.5 Ω (24V supply, 0 ... 10 V output): GND RH+ T+ CO2+ -Vs +Vs V V Power supply 18 ...
User's Guide _______________________________________________________________________ Wiring GMW94R -Vs terminal is internally connected to GND terminal. GND RH+ T+ CO2+ -Vs +Vs Power supply 18 ... 35 VDC or 24 VAC ±20% mA mA mA RL = 0 ... 600 Ω 1402-034 Figure 16 Wiring GMW94R Wiring GMW94 GMW94 is wired in the same way as GMW94R, except for the humidity output that is not present: GND T+ CO2+ -Vs +Vs Power supply 18 ... 35 VDC or 24 VAC ±20% mA mA RL = 0 ...
Chapter 3 ________________________________________________________________ Installation Wiring GMW95 The RS-485 line of the transmitter is isolated from the power supply. A separate ground reference terminal (GND) is provided for the RS-485 connection. If you are using a shielded cable, you can use the Shld terminal to hold the exposed part of the shield. Note that the Shld terminal is floating (not electrically connected). Shld GND D- D+ -Vs +Vs Power supply + 18 ...
User's Guide _______________________________________________________________________ Connecting a Common AC Power Supply to Several Transmitters If you are connecting a common 24 VAC power supply to several transmitters, make sure to connect the same terminal to +Vs and –Vs on all transmitters. This will avoid a short-circuit through the shared common line at the controller; see Figure 20 below.
Chapter 4 _________________________________________________________________ Operation CHAPTER 4 OPERATION This chapter contains information that is needed to operate the GMW90 series transmitters. Display Startup Screens When the transmitter is powered on, it displays a sequence of information screens. The screens are shown for a few seconds each.
User's Guide _______________________________________________________________________ Measurement Screen Measurement screen shows the measured parameters and currently active indicators. 1310-040 Figure 22 Measurement Screen – Normal Operation If there is a problem with measurement, affected readings are replaced with stars. The alarm indicator and an error message will also appear on the screen.
Chapter 4 _________________________________________________________________ Operation Indicators on the Display Indicator Position on Screen Top right Top left Bottom left Meaning Communication arrows. Shown only on models with digital output. Down arrow is shown when transmitter detects valid traffic on the RS-458 line. Up arrow is shown when transmitter is transmitting to the RS-485 line. MI70 connection indicator. Is shown when an MI70 Indicator is connected to the service port.
User's Guide _______________________________________________________________________ Connecting With a Computer Connecting with a computer allows you to configure and troubleshoot your transmitter using serial line commands. For a list of commands, see section List of Serial Commands on page 37.
Chapter 4 _________________________________________________________________ Operation Terminal Application Settings The serial interface settings of the service port are presented in Table 6 below. The settings are fixed, and cannot be changed by the user.
User's Guide _______________________________________________________________________ 0807-004 Figure 24 PuTTY Terminal Application 36 ___________________________________________________________________ M211659EN-B
Chapter 4 _________________________________________________________________ Operation List of Serial Commands All commands can be issued either in uppercase or lowercase. In the command examples, the keyboard input by the user is in bold type. The notation refers to pressing the carriage return (Enter) key on your computer keyboard. Enter a to clear the command buffer before starting to enter commands.
User's Guide _______________________________________________________________________ Transmitter Information Show Transmitter Information The ? command outputs a listing of device information. ? Example: >? Device SW version SNUM : GMW95R : 1.1.28.5849 : H2930002 HTM10 module information Software version : 0.11.1 SNUM : H2950107 GM10 module information Software version : 1.1.0 SNUM : J04C030105 Show Transmitter Firmware Version Use the VERS command to show the transmitter model and firmware version.
Chapter 4 _________________________________________________________________ Operation Show Transmitter Status Use the STATUS command to view detailed information on transmitter model and configuration. STATUS [function] where Function = Optional switch to display a more detailed status for BACnet or Modbus protocol (available on transmitter models with digital output). Available switches are -bacnet and –modbus.
User's Guide _______________________________________________________________________ Example (display full status): >status Device Name Copyright SW Name SW Model SW version Serial number Address : : : : : : : GMW95R Copyright Vaisala Oyj 2013 XM90 XM9x 1.1.28.
Chapter 4 _________________________________________________________________ Operation Show Measured Parameters Use the CALCS command to list the measurement parameters that are supported by the GMW90 series transmitters. CO2, RH and T are measured directly by the transmitter, the rest are calculated based on the measured values.
User's Guide _______________________________________________________________________ Show Command List Use the HELP command to list the currently available serial commands. If the PASS command has not been used, only the basic serial commands are available.
Chapter 4 _________________________________________________________________ Operation Select Units Use the UNIT command to select metric or non-metric output units. Only affects data shown on the display and service port, has no effect on the analog and digital outputs. This command is not available on the digital output models (for example, GMW95).
User's Guide _______________________________________________________________________ Example (show current configuration): >pass 9000 >amode Aout 1 range (mA) Aout 2 range (mA) Aout 3 range (mA) : 4.00 ... 20.00 (error: 3.60) : 4.00 ... 20.00 (error: 3.60) : 4.00 ... 20.00 (error: 3.60) Example (set channel 1 to 0 ... 20 mA output, with error level at 21 mA): >amode 1 0 20 21 Aout 1 range (mA) > : 0.00 ... 20.00 (error: 21.
Chapter 4 _________________________________________________________________ Operation Set Output Clipping and Error Limit Use the AOVER command to define the behavior of the analog outputs when the measured value is outside the scaled output range. AOVER [channel clip% valid%] where channel = Analog output channel, 1 ... 3. clip% = Output margin (%) at which the output is clipped. Range 0 ... 20, default is 0. valid% = Output margin (%) at which the output of the channel goes into the error state.
User's Guide _______________________________________________________________________ Now give the following AOVER command: >aover 3 5 10 Aout 3 clipping Aout 3 error limit : 5.00 % : 10.00 % Channel 3 now behaves like this: - Clipping is now set to 5%, meaning the output is allowed to vary between 0 ... 5.25 V. The channel will output the measurement for 0 ... 2100 ppm, but range 0 ... 5 V remains scaled to 0 ... 2000 ppm. - Error limit is 10%, which means channel 3 will show the error state (5.
Chapter 4 _________________________________________________________________ Operation Display Settings Select Parameters to Display Use the DSEL command to select the parameters that are displayed on the transmitter screen. You can select parameters by abbreviation. If only one parameter is selected, it is shown vertically centered on the transmitter screen. DSEL [Q1 Q2 Q3] where Q1 Q2 Q3 = First parameter to show on the screen.
User's Guide _______________________________________________________________________ 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. R Example (measurement message in default format): >r RH = RH = RH = RH = ... 26.44 26.45 26.43 26.43 %RH %RH %RH %RH T T T T = = = = 24.27 24.27 24.27 24.
Chapter 4 _________________________________________________________________ Operation Set Output Interval 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 given. INTV [n xxx] where n xxx = time interval, range 0 ... 9999.
User's Guide _______________________________________________________________________ Set Output Format Use the serial line command FORM to change the measurement message sent by the transmitter on the service port. You can freely define the output message to include the desired parameters, formatting options, text strings, and additional fields. FORM [modifier string] where modifier string = String of parameters and modifiers that defines the output format, length 1 ... 150 characters.
Chapter 4 _________________________________________________________________ Operation Table 9 FORM Command Parameters Measured Parameter Carbon dioxide Relative humidity Temperature Dew/frostpoint temperature Dewpoint temperature Wetbulb temperature Enthalpy Mixing ratio Absolute humidity Dew/frostpoint depression Table 10 Modifier x.
User's Guide _______________________________________________________________________ Serial Line Settings Set Remote Echo Use the ECHO command to enable or disable remote echo by the transmitter. ECHO [on/off] Example: >echo on Echo : ON Set Serial Line Turnaround Delay With the SDELAY command you can set the turnaround delay of the transmitter (time waited before replying to an incoming message) or view the currently set delay value.
Chapter 4 _________________________________________________________________ Operation Calibration and Adjustment Commands The following sections describe the calibration and adjustment commands of the GMW90 series. For general information on performing calibration and adjustment on the serial line, see section Adjustment Using a Computer on page 68. NOTE You must enable advanced serial commands using the PASS 9000 command before using the calibration and adjustment commands.
User's Guide _______________________________________________________________________ 1-point Adjustment of CO2 Measurement The 1-point adjustment adjusts either offset or gain, depending on the CO2 concentration. CCO2 [ONE] [x] where x = The reference CO2 concentration (ppm) that the transmitter should be showing. Example: >pass 9000 >cco2 one 440 OK 2-point Adjustment of CO2 Measurement The 2-point adjustment adjusts both offset and gain.
Chapter 4 _________________________________________________________________ Operation Clear User Adjustment of CO2 Measurement CCO2 [RESET] Example: >pass 9000 >cco2 reset OK Adjust Humidity Measurement Use the CRH command to perform a humidity adjustment of the relative humidity (RH) measurement. You can do a 1-point or a 2-point adjustment, or clear the adjustment information from the HTM10 module. Note that the factory adjustment will remain intact when user adjustment is cleared.
User's Guide _______________________________________________________________________ 1-point Adjustment of RH Measurement The 1-point adjustment adjusts both offset and gain depending on the adjustment condition. The same type of adjustment is done when turning the RH trimmer. Place the transmitter in the reference condition and allow it to stabilize before entering the adjustment. CRH [ONE] [x] where x = The reference humidity condition (%RH) that the transmitter should be showing.
Chapter 4 _________________________________________________________________ Operation Clear User Adjustment of RH Measurement CRH [RESET] Example: >pass 9000 >crh reset OK Adjust Temperature Measurement Use the CT command to perform an adjustment of the temperature measurement. You can do a 1-point adjustment or clear the adjustment information from the HTM10 module. Note that the factory adjustment will remain intact when user adjustment is cleared.
User's Guide _______________________________________________________________________ Clear User Adjustment of T Measurement CT [RESET] Example: >pass 9000 >ct reset OK Enter Calibration and Adjustment Information Use the CTEXT command to store a text string that describes the calibration and/or adjustment. To enter a text string with spaces, enclose the string in quotation marks. Use the CDATE to store the date.
Chapter 4 _________________________________________________________________ Operation Testing Commands Test Analog Outputs Use the ATEST command to force the analog outputs to the given value. Before using the ATEST command it is useful to give the AMODE command to verify the output mode of the channels. ATEST [channel value] where channel = value = Number of analog output channel to be tested (1 ... 3). Voltage or current value to set the channel to.
User's Guide _______________________________________________________________________ Other Commands Enable Advanced Serial Commands Use the PASS command to enable the advanced serial commands. PASS [passcode] where passcode = Passcode to enable advanced commands is 9000. Example: >pass 9000 Reset Transmitter Use the RESET command to reset the transmitter. RESET Example: >reset Resetting GMW95R / 1.1.28.
Chapter 4 _________________________________________________________________ Operation Set BACnet Parameters Use the BACNET command to show or set some of the transmitter’s BACnet parameters. You can also use the BACNET command to reinitialize the BACnet stack of the transmitter without having to reset or power cycle the transmitter. BACNET [parameter_name [parameter_value]] [reinit] where parameter_name = Name of the BACnet parameter to change.
User's Guide _______________________________________________________________________ Example (change Description to main_hall, and reinitialize the BACnet stack): >pass 9000 >bacnet description main_hall Description : main_hall >bacnet reinit Reinitialize signaled to BACnet stack. Set CO2 Indicator LED Parameters On transmitter models with indicator LEDs, you can use the TRAF command to show or set CO2 indicator LED limits. You can also turn the LEDs off.
Chapter 5 _______________________________________________________________ Maintenance CHAPTER 5 MAINTENANCE This chapter provides information that is needed in basic maintenance of the GMW90 series. Cleaning The body of the transmitter can be cleaned by wiping with a moistened lint-free cloth. Do not use cleaning agents or solvents, or blow pressurized air into the transmitter housing. Do not attempt to clean contaminated measurement modules.
User's Guide _______________________________________________________________________ Notes for CO2 Adjustment 1-point CO2 adjustment affects either offset or gain, depending on the gas concentration. 1-point adjustment below 700 ppm affects the measurement offset, above 700 ppm it affects the gain. 2-point adjustment will adjust both offset and gain. Choose the adjustment points as follows: - For first point, use as low concentration as possible. Preferably 0 ppm, must be below 700 ppm.
Chapter 5 _______________________________________________________________ Maintenance Effect of Pressure on CO2 Measurement Ambient pressure affects the CO2 reading of GMW90. If the ambient pressure differs from the normal pressure 1013 hPa, the transmitter can correct the reading if you enter the correct pressure value to the transmitter using an MI70 indicator or a computer (ENV command).
User's Guide _______________________________________________________________________ Adjustment Using Display and Trimmers CAUTION The trimmers only turn 135 degrees each way, less than half a rotation. Do not force the trimmer past the stopping point. If you wish to apply a greater correction than allowed by the trimmer in a single adjustment, simply adjust the transmitter again. Corrections applied using the trimmers are cumulative.
Chapter 5 _______________________________________________________________ Maintenance Adjustment Using a Hand-Held Meter GMW90 transmitters can be adjusted using Vaisala hand-held meters HM70 (for humidity and temperature) and GM70 (for carbon dioxide and temperature). 1. 2. 3. 4. 5. 6. 7. 8. Connect the GMW90 series transmitter to the MI70 indicator using the connection cable (Vaisala order code 219980). MI70 indicator is the hand-held display device that is included with HM70 and GM70.
User's Guide _______________________________________________________________________ Adjustment Using a Computer For more detailed instructions on using the Vaisala USB cable and a terminal application, see section Connecting With a on page 34. For a description of the serial commands, see section Calibration and Adjustment Commands on page 53. 1. 2. 3. Connect the GMW90 series transmitter to your computer using the Vaisala USB cable (order code 219690).
Chapter 5 _______________________________________________________________ Maintenance Repair Maintenance If you cannot restore the measurement accuracy of the transmitter by calibration and adjustment, you can replace the measurement modules inside the transmitter. Measurement modules are the small component boards that are connected to the main transmitter component board. See Figure 4 on page 17. NOTE User calibration settings (adjustment by trimmers or service port) are stored in the module.
User's Guide _______________________________________________________________________ Replacing the GM10 Module To replace the module: 1. 2. 3. Disconnect the transmitter body from the mounting base. Locate the GM10 module on the transmitter. The module is a separate component board with a golden cuvette that contains the CARBOCAP® sensor. The module is connected to the main transmitter board with a connector, and held in place by a plastic clip on the other side. See Figure 4 on page 17.
Chapter 5 _______________________________________________________________ Maintenance Replacing the HTM10 Module CAUTION Handle the HTM10 module carefully. When reinstalling the transmitter body to the mounting base, avoid touching the module or the HUMICAP® sensor. To replace the module: 1. 2. Disconnect the transmitter body from the mounting base. With your fingers, push apart the two plastic holders that hold the module. Pull out the module.
User's Guide _______________________________________________________________________ CHAPTER 6 TROUBLESHOOTING This chapter describes possible problems, their probable causes and remedies, and provides contact information for technical support. Problem Situations Table 11 Troubleshooting Table Problem Transmitter reports an error on the display or serial line. Temperature reading shown by the transmitter is too high. Possible Cause Multiple causes. Remedy Refer to Table 12 on page 73.
Chapter 6 ____________________________________________________________ Troubleshooting Error Messages Table 12 Error Messages Error Text on Display HTM10 01 Error ID on Serial Line 23 HTM10 04 21 HTM10 03 4 HTM10 05 22 HTM10 06 42 GM10 01 79 GM10 03 GM10 04 GM10 10 GM10 11 GM10 12 81 82 28 88 89 Internal 1 1 Internal 2 Internal 3 Internal 4 2 3 43 Possible Cause Remedy Communication problem with HTM10 module. Problem with humidity measurement.
User's Guide _______________________________________________________________________ Viewing Error Messages on Serial Line View Currently Active Errors Use the ERRS command to view currently active errors on the serial line: ERRS Example: >errs NO ERRORS View Error Table Use the ERRT command to view the table of possible transmitter errors. The table includes error ID, error count since last reset, level, current state, and error text. Critical errors require a transmitter reset to recover.
Chapter 6 ____________________________________________________________ Troubleshooting Error State If there are any active “critical” or “error” level errors active in the transmitter, both analog outputs are set into a defined error level instead of the measured result. The error level depends on the output type: - For 0 ... 5 V output, the default error level is 5.5 V For 0 ... 10 V output, the default error level is 11 V For 4 ... 20 mA output, the default error level is 3.6 mA For 0 ...
User's Guide _______________________________________________________________________ Reverting to Factory Settings GMW90 series transmitters, including factory-customized transmitters, can be reverted to their original shipping configuration using the DIP switches or the service port. Reverting the transmitter to factory settings clears all user configuration that has been done using the service port. User-made adjustments are also cleared from the GM10 and HTM10 measurement modules.
Chapter 6 ____________________________________________________________ Troubleshooting 4. 5. 6. 7. Reconnect the transmitter cover to the mounting base so the transmitter powers up. Check the screen after power-up: when the DIP switches are in factory reset position, you will see a notification text. Disconnect the transmitter cover again. Set the DIP switches to the positions they were before.
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.
Chapter 7 _____________________________________________________________ Technical Data CHAPTER 7 TECHNICAL DATA This chapter provides the technical data of the GMW90 series transmitters. Specifications Table 13 Performance Property Carbon dioxide Measurement range Accuracy +20 … +30 °C (+ 68 … + 86 °F) +10 ... +20 °C, +30 ... +40 °C (+50 ... +68 °F, +86 ... +104 °F) -5 ... +10 °C, +40 ... +55°C (+23 ... +50 °F, +104 ...
User's Guide _______________________________________________________________________ Table 14 Operating Environment Property Operating temperature range Operating humidity range Storage temperature range Electromagnetic compliance Table 15 Inputs and Outputs Property Current output models Outputs Loop resistance Supply voltage Max. power consumption Typical power consumption Voltage output models Outputs Load resistance Supply voltage Power consumption Digital output models Supply voltage Max.
Chapter 7 _____________________________________________________________ Technical Data Spare Parts and Accessories Information on spare parts, accessories, and calibration products is available online at www.vaisala.com and store.vaisala.com. Table 17 GMW90 Series Spare Parts and Accessories Description Carbon dioxide measurement module (for all models) Temperature measurement module (for CO2+T models) Humidity and temperature measurement module (CO2+T+RH models) Decorative cover set (10 pcs.
User's Guide _______________________________________________________________________ Dimensions in mm 132.7 30 81 1111-061 Figure 32 GMW90 Series Dimensions 59.5 4.4 29.8 34 33.5 27 50 Ø 30.
Appendix A _________________________________________________________ BACnet Reference APPENDIX A BACNET REFERENCE This appendix describes the BACnet protocol implementation of the GMW90 series digital transmitters. NOTE For more information on BACnet, refer to addendum D of the ANSI/ASHRAE standard 135-2001: BACnet®—A Data Communication Protocol for Building Automation and Control Networks. NOTE Serial line settings such as baud rate are configured using DIP switches.
User's Guide _______________________________________________________________________ Segmentation Capability Segmentation Requests Supported Segmentation Responses Supported Standard Object Types Supported Analog Input Analog Output Analog Value Averaging Binary Input Binary Output Binary Value Calendar Command Device Event Enrollment File Group Life Safety Point Life Safety Zone Loop Multistate Input Multistate Output Multistate Value Notification Class Prog
Appendix A _________________________________________________________ BACnet Reference Device Address Binding Is static device binding supported? (required for two-way communication between MS/TP slaves and other devices) Networking Options Yes No Router, Clause 6: Annex H, BACnet Tunneling Router over IP BACnet/IP Broadcast Management Device (BBMD) Does the BBMD support registrations by Foreign Devices? Yes Character Sets Supported UTF-8 / ANSI X3.
User's Guide _______________________________________________________________________ Device Object Note the following: - Writable means writable via BACnet - Max_Master and Max_Info_Frames are required in a Master device. - UV = Configured at Vaisala factory to a unique value. See additional information after the table.
Appendix A _________________________________________________________ BACnet Reference Property Data type (Application Type) Max_APDU_Length_Ac cepted Max_Master Max_Info_Frames Segmentation_Supporte d APDU_Timeout APDU_Retries Device_Address_Bindin g Database_Revision Unsigned16 Unsigned16 (1..
User's Guide _______________________________________________________________________ Carbon Dioxide Object Table 19 Carbon Dioxide Object Properties Property Data type (Application Type) BACnetObjectIdentifier Object_Identifier Object_Name Object_Type CharacterString BACnetObjectType (ENUMERATED) Real Present_Value Writable Value or Initial Value (Conformance Code) No (R) 00 00 00 01 (hex) Object Type = 0, Instance = 1 No (R) "CO2" No (R) 0 (Analog Input) Out_of_Service COV_Increment Yes (When Oos
Appendix A _________________________________________________________ BACnet Reference Temperature Object Table 23 Temperature Object Properties Property Data type (Application Type) Object_Identifier BACnetObjectIdentifier Object_Name Object_Type CharacterString BACnetObjectType (ENUMERATED) Real Present_Value Writable (Conformance Code) No (R) No (R) No (R) Yes (When Oos) (R) No (O) Yes (R) Description Units CharacterString BACnetEngineeringUnits (ENUMERATED) Status_Flags Yes (when OoS) (R) Y
User's Guide _______________________________________________________________________ Relative Humidity Object Table 27 Relative Humidity Object Properties Property Data type (Application Type) Object_Identifier BACnetObjectIdentifier Object_Name Object_Type CharacterString BACnetObjectType (ENUMERATED) Real Present_Value Description Units Writable (Conformance Code) No (R) No (R) No (R) Yes (When Oos) (R) No (O) No (R) Out_of_Service COV_Increment CharacterString BACnetEngineeringUnits (ENUMERAT
Appendix A _________________________________________________________ BACnet Reference Calculated Humidity Objects Table 31 Calculated Humidity Objects Instance 4 5 6 7 8 Name "Td" "Tdf" "dTd" "Tw" "a" Description "Dewpoint" "Dewpoint" "Dewpoint depression" "Wet bulb temperature" "Absolute humidity" 9 "x" "Mixing ratio" 10 "h" "Enthalpy" Table 32 Calculated Humidity Object Properties Property Data type (Application Type) Object_Identifier BACnetObjectIdentifier Object_Name Object_Type Char
User's Guide _______________________________________________________________________ Table 34 Reliability State 0 NO_FAULT_DETECTED 1 NO_SENSOR 2 OVER_RANGE 3 UNDER_RANGE 7 UNRELIABLE_OTHER Table 35 Cause No contact to measurement module RH over 100% RH under 0% Other measurement error Event State State 0 NORMAL 1 FAULT Cause Reliability equals 0 (NO FAULT DETECTED) Reliability not 0 Operation Pressure Object Set current atmospheric pressure to improve the calculation accuracy of pressure dependent
Appendix A _________________________________________________________ BACnet Reference Operation Altitude Object Set current atmospheric pressure to improve the calculation accuracy of pressure dependent humidity parameters. NOTE Table 38 Pressure and Altitude objects are linked together. If Present Value in one object is changed, Present Value in another object is changed accordingly.
User's Guide _______________________________________________________________________ BIBBs Supported Table 40 below lists all the BIBBs which, per ANSI/ASHRAE Standard 135-2008, could be supported by a BACnet Smart Sensor (B-ASC). The checked BIBBs are supported by the device.
Appendix A _________________________________________________________ BACnet Reference Application Services Supported Table 41 below lists all the BACnet standard application services. The checked services are supported by the device.
User's Guide _______________________________________________________________________ APPENDIX B MODBUS REFERENCE This appendix describes the Modbus protocol implementation of the GMW90 series digital transmitters. NOTE For more information on Modbus protocol, refer to the Specification and Implementation Guide for Modbus Over Serial Line. NOTE Serial line settings such as baud rate are configured using DIP switches. See section Configuration of Digital Output Models on page 21.
Appendix B _________________________________________________________ Modbus Reference Available measurements depend on the transmitter model. Values may be unavailable also in case of device failure. Read status registers or exception status outputs to check for failures. Accessing unavailable (unsupported or temporarily missing) measurement data does not generate an exception. “Unavailable” value (a quiet NaN for floating point data or 0x8000 for integer data) is returned instead.
User's Guide _______________________________________________________________________ Table 47 GMW90 Modbus Device Identification Object Id 0x00 0x01 0x02 0x03 0x04 0x80 0x81 Object Name VendorName ProductCode MajorMinorVersion VendorUrl ProductName SerialNumber CalibrationDate 0x82 CalibrationText Table 48 Code 01 02 03 Description “Vaisala” Transmitter model (for example, “GMW95”) Software version (for example, “1.0.0”) “http://www.vaisala.com/” GMW90 Serial number (e.g.
www.vaisala.
