USER'S GUIDE ® Vaisala HUMICAP Humidity and Temperature Transmitters HMW90 Series M211399EN-F
PUBLISHED BY Vaisala Oyj P.O. Box 26 FI-00421 Helsinki Finland Phone (int.): +358 9 8949 1 Fax: +358 9 8949 2227 Visit our Internet pages at www.vaisala.com. © Vaisala 2013 No part of this manual may be reproduced, published or publicly displayed in any form or by any means, electronic or mechanical (including photocopying), nor may its contents be modified, translated, adapted, sold or disclosed to a third party without prior written permission of the copyright holder.
_________________________________________________________________________________ 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 _______________________________________________________________________ CHAPTER 4 OPERATION ................................................................................................. 35 Display ..................................................................................... 35 Startup Screens ................................................................... 35 Measurement Screen .......................................................... 36 Indicators on the Display ..............
_________________________________________________________________________________ Test Relay Operation .......................................................... 63 Other Commands ................................................................... 63 Enable Advanced Serial Commands .................................. 63 Reset Transmitter ................................................................ 64 Set BACnet Parameters ...................................................... 64 CHAPTER 5 MAINTENANCE ..
User's Guide _______________________________________________________________________ Event State .......................................................................... 93 Out of Service ...................................................................... 93 Temperature Object ................................................................ 94 Units..................................................................................... 94 Status Flags ......................................................
_________________________________________________________________________________ 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 Figure 34 Figure 35 HMW90 Series Transmitters .............................................
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 Manua
Chapter 1 _________________________________________________________ General Information CHAPTER 1 GENERAL INFORMATION This chapter provides general notes for the manual and HMW90 series transmitters. About This Manual This manual provides information for installing, operating, and maintaining HMW90 series transmitters. All transmitter models in the HMW90 series are covered, which means that some information in the manual is model-specific.
User's Guide _______________________________________________________________________ Version Information Table 1 Manual Code M211399EN-F M211399EN-E M211399EN-D Manual Revisions Description February 2013. This manual. Updated description of DIP switch settings for the digital output models. Updated description of UNIT command. February 2013. Previous version. Updated description of BACnet protocol implementation. January 2013. Added HMW95 model.
Chapter 1 _________________________________________________________ General Information Safety The HMW90 series 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 Do not modify the unit. Improper modification can damage the product or lead to malfunction. ESD Protection Electrostatic Discharge (ESD) can cause immediate or latent damage to electronic circuits.
User's Guide _______________________________________________________________________ Regulatory Compliances The HMW90 series complies with the following performance and environmental test standards: - EMC-Directive Conformity is shown by compliance with the following standards: - EN 61326-1: Electrical equipment for measurement, control, and laboratory use – EMC requirements – for use in industrial locations.
Chapter 1 _________________________________________________________ General Information Warranty Visit our Internet pages for 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. Please see the applicable supply contract or Conditions of Sale for details of the warranty for each product.
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Chapter 2 ___________________________________________________________ Product Overview CHAPTER 2 PRODUCT OVERVIEW This chapter introduces the features, advantages, and the product nomenclature. Introduction to HMW90 Series The HMW90 series transmitters are wall-mount transmitters for building automation applications. Transmitter models in the series share the following common features: - Detachable mounting base for easy installation and wiring. Display (visible or hidden behind the cover).
User's Guide _______________________________________________________________________ HMW90 Series Transmitters Table 3 below lists the most important differences between the HMW90 series transmitter models. For technical specifications, see Chapter 7, Technical Data, on page 83. Table 3 Product Code HMW92 HMW92D HMW93 HMW93D TMW92 TMW93 HMW95 HMW95D HMW90 TMW90 HMW90 Series Transmitters Short Description Humidity and temperature transmitter with - two current outputs (4 ...
Chapter 2 ___________________________________________________________ Product Overview Output Parameters Explained Table 4 Parameters Supported by HMW90 Series Parameter Symbol Temperature T NOTE Unit(s) °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 Temperature in Celsius or Fahrenheit scale.
User's Guide _______________________________________________________________________ Transmitter parts 1 6 2 7 3 4 8 5 1201-004 Figure 2 Transmitter Parts - Outside where 1 = Locking screw for mounting base. Not included, M3×6 recommended. 2 = Adjustment trimmers 3 = Service port 4 = Window for display (only in models where the display is visible) 5 = Locking screw for slide. Not included, M3×6 recommended.
Chapter 2 ___________________________________________________________ Product Overview 1 1201-005 Figure 3 Opening the Transmitter where 1 = Push tab down with a screwdriver to open the transmitter.
User's Guide _______________________________________________________________________ 1 2 7 5 3 6 4 8 N M e tr ic on R -M e tr Td H 0 .. .1 R ic 0 .. 0V .
Chapter 2 ___________________________________________________________ Product Overview 1 2 8 10 6 3 7 4 9 11 5 12 1209-013 Figure 5 Transmitter Parts – Inside (Digital Output Models) where 1 2 3 4 5 6 = = = = = = 7 = 8 = 9 = 10 = 11 = 12 = Mounting base Opening for cable (wiring from top) Terminal label Opening for cable (wiring from behind) Label for RS-485 baud rate DIP switch settings Orientation arrow – should point up after the mounting base has been installed.
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Chapter 3 ________________________________________________________________ Installation CHAPTER 3 INSTALLATION This chapter provides you with information that is intended to help you install the HMW90 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 HMW93) and digital output models (for example, HMW95).
User's Guide _______________________________________________________________________ DIP Switches of Analog Output Models ric et M nNo Td om st u C 1 2 3 4 5 6 7 8 ric RH et M P DI HMW92/TMW92 ric n gh et O Hi M y y V n ..5 la la No Td 0. Re Re om st u C 1 2 3 4 5 6 7 8 f P ric RH 10V Of ow DI L et . y . . y a M 0 el la R Re HMW93/TMW93 1111-066 Figure 6 DIP 1 2 DIP Switch Settings of Analog Output Models Position Non-metric Metric Td RH 3 4 5 6 7 8 0...5V 0...
Chapter 3 ________________________________________________________________ Installation If you change the position of DIP switch 8, note the following: - When changing from Custom to DIP: Current custom settings are overwritten by the settings from the DIP switches at next power up. Settings that do not have DIP switches remain unchanged, except for display layout (DSEL command) that is set to default.
User's Guide _______________________________________________________________________ For examples of relay behavior in DIP mode, see Figure 7 and Figure 8 on page 24. Note also the following: - Relay operation in DIP mode is linked to RH measurement on HMW93, and to T measurement on TMW93. - Relay contacts are open if the transmitter is in error state (an active error is present). - Relay contacts are open when transmitter is powered off.
Chapter 3 ________________________________________________________________ Installation NOTE There is a hysteresis around the setpoint value to prevent rapid relay switching when the measured value moves around the setpoint. This means that the relay will not close or open exactly at the setpoint, but slightly above and below. - On HMW93 the hysteresis is 2 %RH in both directions. - On TMW93 the hysteresis is 1 °C (1.8 °F) in both directions.
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) HMW95 1209-016 Figure 9 DIP 1 2 ...
Chapter 3 ________________________________________________________________ Installation Dip switches marked Address (Binary Weighting) set the MAC address of the HMW90 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 11 Selecting Transmitter Location Use the mounting holes to attach the mounting base securely.
Chapter 3 ________________________________________________________________ Installation Wiring Connect the wiring to the screw terminals on the mounting base. The supply voltage and terminal assignments are model-specific. Max wire size 2 mm2 (AWG14). After completing the wiring, connect the transmitter body over the mounting base. Note that mounting bases are model-specific. WARNING Connect only de-energized wires.
User's Guide _______________________________________________________________________ Wiring HMW93 Recommended wiring for long cables: Relay -RH +RH -T +T -Vs +Vs max. 50 VDC 500 mA Power supply 18 ... 35 VDC or 24 VAC ±20% V V RL = 10 kΩ min. 1111-068 Figure 14 Wiring HMW93 3-wire connection with -Vs as common ground. Maximum cable resistance is 2.5 Ω (24V supply, 0 ... 10 V output, relay not used). Relay -RH +RH -T +T -Vs +Vs V V Power supply 18 ... 35 VDC or 24 VAC ±20% RL = 10 kΩ min.
Chapter 3 ________________________________________________________________ Installation Wiring TMW92 -T +T Power supply 10 ... 28 VDC RL = 0 ... 600 Ω mA 1202-117 Figure 16 Wiring TMW92 Wiring TMW93 Recommended wiring for long cables: Relay -T +T -Vs +Vs Power supply 18 ... 35 VDC or 24 VAC ±20% V max. 50 VDC 500 mA RL = 10 kΩ min. 1202-118 Figure 17 Wiring TMW93 3-wire connection with -Vs as common ground. Maximum cable resistance is 2.5 Ω (24V supply, 0 ... 10 V output, relay not used).
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 19 below.
Chapter 3 ________________________________________________________________ Installation Wiring HMW95 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 ...
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Chapter 4 _________________________________________________________________ Operation CHAPTER 4 OPERATION This chapter contains information that is needed to operate the HMW90 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. 1111-071 Figure 23 HMW93 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 right Top left Bottom left Meaning Is shown when relay contacts are open (HMW93 and TMW93 only). Is shown when relay contacts are closed (HMW93 and TMW93 only). Is shown when an MI70 Indicator is connected to the service port. Is shown if an error is active. The error message is written after the indicator.
User's Guide _______________________________________________________________________ Connecting With a PC Connecting with a PC 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 41. When connecting using a PC, use the Vaisala USB cable (Vaisala order code 219690) and a suitable terminal application: - If you have not used the Vaisala USB cable before, install the driver before attempting to use the cable.
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 25 PuTTY Terminal Application 40 ___________________________________________________________________ M211399EN-F
Chapter 4 _________________________________________________________________ Operation List of Serial Commands Some commands, such as RSEL, are not available if the required feature is not present on the transmitter, or the command is not relevant. 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.
User's Guide _______________________________________________________________________ Transmitter Information Show Transmitter Information The ? command outputs a listing of device information. ? Example: >? Device SW version SNUM : HMW93 : 1.00.0.0000 : G5130008 HTM10 module information Software version : 1.00.0 SNUM : G5130007 Show Transmitter Firmware Version Use the VERS command to show the transmitter model and firmware version. VERS Example: >vers HMW93 / 1.00.
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 : : : : : : : HMW92 Copyright Vaisala Oyj 2012 XM90 XM9x 1.0.3.3728 H1840005 0 SUB FUNCTIONS * Serial Port (COM1) * Mode : STOP * Error Manager (ERR) * Status : NORMAL Active errors : 0 * MCI communication (MCI) * Status : NORMAL * Analog output 1 (AOUT1) * Quantity : x Input range : 0.000 ... 700.
Chapter 4 _________________________________________________________________ Operation Show Measured Parameters Use the CALCS command to list the measurement parameters that are supported by the HMW90 series transmitters. 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, HMW95).
User's Guide _______________________________________________________________________ Set Analog Output Scaling Use the ASEL command to select the output parameter and scaling for analog output channels. ASEL [channel parameter lo_value hi_value] where channel = Analog output channel, 1 or 2. parameter = Parameter that is output on the channel.
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 or 2. 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 _______________________________________________________________________ Channel 2 now behaves like this: - Clipping is now set to 10%, meaning the output is allowed to vary between 0.6 ... 5.4 V. The channel will output the measurement for -11 ... 61 °C, but range 1 ... 5 V remains scaled to show -5 ... 55 °C. - Error limit is 20%, which means channel 2 will show the error state (6 V) when the measured value is 20% outside the scaled output range.
Chapter 4 _________________________________________________________________ Operation Example (show currently displayed parameters): 9000 >pass >dsel Quant Quant Quant 1 2 3 : T : RH : Disabled Example (change display to only show RH): >dsel RH OK Example (change display to show same parameters as are assigned to analog output channels): >dsel out1 out2 OK Serial Line Output Commands Start Measurement Output Use the R command to start the continuous outputting of measurement values as an ASCII text s
User's Guide _______________________________________________________________________ Output a Reading Once Use the SEND command to output a single measurement message. SEND Example: >send RH = 21.72 %RH T = 23.12 'C 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.
Chapter 4 _________________________________________________________________ Operation 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.
User's Guide _______________________________________________________________________ Table 9 FORM Command Parameters Measured Parameter Relative humidity Temperature Dew/frost point temperature Dewpoint temperature Wetbulb temperature Enthalpy Mixing ratio Absolute humidity Dew/frost point depression Table 10 Modifier x.
Chapter 4 _________________________________________________________________ Operation Set Serial Line Response Time With the SDELAY command you can set delay (response time) of the serial line, or view the currently set delay value. SDELAY [delay] where delay = Serial line delay in milliseconds, range 1 … 1000. Example: >sdelay 5 COM1 transmit delay : 5 Relay Configuration in Custom Mode NOTE Relay is included on HMW93 transmitters only.
User's Guide _______________________________________________________________________ Set Relay Parameter and Limits Use the RSEL command to show or set the parameter that controls the relay, and the limits that are applied. RSEL [parameter lo_value hi_value] where parameter = Parameter that controls the relay.
Chapter 4 _________________________________________________________________ Operation Relay Configuration Examples RSEL RH 60 70 RMODE Hi_Active 100 Relay closed Relay open Relative Humidity (%) 90 80 70 60 50 40 30 20 10 0 Time Figure 26 1111-119 Relay Hi_Active in Custom Mode (HMW93) RSEL RH 60 70 RMODE Lo_Active 100 Relay closed Relay open Relative Humidity (%) 90 80 70 60 50 40 30 20 10 0 Time Figure 27 1111-120 Relay Lo_active in Custom Mode (HMW93) VAISALA ____________________________
User's Guide _______________________________________________________________________ Calibration and Adjustment Commands The following sections describe the calibration and adjustment commands of the HMW90 series. For general information on performing calibration and adjustment on the serial line, see section Adjustment Using a PC on page 71. The 1-point humidity adjustment of the HMW90 series adjusts both offset and gain, depending on the adjustment condition.
Chapter 4 _________________________________________________________________ Operation 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.
User's Guide _______________________________________________________________________ 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.
Chapter 4 _________________________________________________________________ Operation 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.
User's Guide _______________________________________________________________________ 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 or 2). Voltage or current value to set the channel to.
Chapter 4 _________________________________________________________________ Operation Test Relay Operation Use the command RTEST to test the operation of the relay. Issue the command without parameters to end the relay test. RTEST [state] where state = State of the relay contacts.
User's Guide _______________________________________________________________________ Reset Transmitter Use the RESET command to reset the transmitter. RESET Example: >reset Resetting HMW93 / 1.00.00.0000 / XM90 > 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.
Chapter 4 _________________________________________________________________ Operation Example (show BACnet parameters): >bacnet Instance Name Location Description Password MAX_MASTER COV_Interval Autobaud_Interval : : : : : : : : 6 (00000006h) NOT_SET Location Description 1234 127 (007Fh) 0 10 Example (change Location to “101”, Description to “main_hall”, and reinitialize the BACnet stack): >bacnet name 101 Name : 101 >bacnet description main_hall Description : main_hall >bacnet reinit Reinitialize sign
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Chapter 5 _______________________________________________________________ Maintenance CHAPTER 5 MAINTENANCE This chapter provides information that is needed in basic maintenance of the HMW90 series. Periodic Maintenance 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 HTM10 modules and HUMICAP® sensors.
User's Guide _______________________________________________________________________ Calibration and Adjustment HMW90 series transmitters are fully calibrated as shipped from factory. Calibration and adjustment services are available through Vaisala Service Centers. For contact information, see www.vaisala.com/servicecenters. HMW90 series transmitters have a display that makes it easy to compare the measured readings against any portable calibration reference.
Chapter 5 _______________________________________________________________ Maintenance 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. NOTE User calibration settings (adjustment by trimmers or service port) are stored in the HTM10 module. If you replace the module, there is no need to undo previous adjustments. 1.
User's Guide _______________________________________________________________________ Adjustment Using an HM70 1. 2. 3. 4. 5. 6. 7. 8. Connect the HMW90 series transmitter to the HM70 hand-held meter using the connection cable (Vaisala order code 219980). Depending on the connected devices, you may be prompted by the HM70 meter to check the currently applied environment settings. Check the settings when prompted. In the Functions menu of the HM70, select Calibrate XMW9x and press Start. Confirm Yes.
Chapter 5 _______________________________________________________________ Maintenance Adjustment Using a PC For more detailed instructions on using the Vaisala USB cable and a terminal application, see section Connecting With a PC on page 38. For a description of the serial commands, see section Calibration and Adjustment Commands on page 58. 1. 2. 3. Connect the HMW90 series transmitter to your PC using the Vaisala USB cable (order code 219690).
User's Guide _______________________________________________________________________ Repair Maintenance Replacing the Measurement Module If you cannot restore the measurement accuracy of the transmitter by calibration and adjustment, you can replace the measurement module inside the transmitter. The measurement module is the small separate component board that is connected to the bottom of the component board; see Figure 4 on page 18.
Chapter 5 _______________________________________________________________ Maintenance 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. Keep the module straight while pulling it out, otherwise the pins may twist in the connector and damage it. 1112-028 Figure 31 3. 4. 5. 6.
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Chapter 6 ____________________________________________________________ Troubleshooting CHAPTER 6 TROUBLESHOOTING This chapter describes common problems, their probable causes and remedies, and provides contact information for technical support. Problem Situations Table 11 Troubleshooting Table Problem Temperature reading shown by the transmitter is too high. Possible Causes and Solutions 1. The transmitter may be installed in an unsuitable location, for example, near a heat source or in sunlight.
User's Guide _______________________________________________________________________ Error Messages Error Messages on the Display Table 12 Error Messages on the Display Error Message HTM10 01 HTM10 02 Possible Cause and Solution Communication failure with HTM10 module. Reconnect the module and check that it sits firmly in place. HTM10 03 HTM10 04 HTM10 05 HTM10 06 Problem with the HTM10 module. Internal 1 Internal 2 Internal 3 1. Check the module for damage. 2.
Chapter 6 ____________________________________________________________ Troubleshooting 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. Most of the errors can be seen also on the display (see Table 12 on page 76) but there are some that can only be viewed on the serial line.
User's Guide _______________________________________________________________________ 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.
Chapter 6 ____________________________________________________________ Troubleshooting Reverting to Factory Settings HMW90 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 humidity and temperature adjustments are also cleared from the HTM10 module.
User's Guide _______________________________________________________________________ Modbus A B C Parity Even Non-Metric ON 1 2 3 4 5 6 7 8 Baud Rate BACnet Metric Parity None HMW95 Figure 33 4. 5. 6. 7. 1209-028 DIP Switches in Factory Reset Position (HMW95) Reconnect the transmitter cover to the mounting base so it 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.
Chapter 6 ____________________________________________________________ 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. Name and location of the installation site. Name and contact information of a technically competent person who can provide further information on the problem.
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Chapter 7 _____________________________________________________________ Technical Data CHAPTER 7 TECHNICAL DATA This chapter provides the technical data of the HMW90 series transmitters. Specifications Table 14 Performance Property Relative humidity Measurement range Accuracy Temperature range +10 ... +40 °C (+50 ... +104 °F) 0 ... 90 %RH 90 ... 100 %RH Temperature range -5 ... +10 °C, +40 ... + 55 °C (+23 ... +50 °F, +104 ... +131°F) 0 ... 90 %RH 90 ...
User's Guide _______________________________________________________________________ Table 16 Inputs and Outputs Property HMW92 and TMW92 Outputs HMW92 TMW92 Loop resistance Supply voltage Isolation between output channels HMW93 and TMW93 Outputs HMW93 TMW93 Load resistance Supply voltage Max.
Chapter 7 _____________________________________________________________ Technical Data *RAL code is only indicative with potential small variations in color shade.
User's Guide _______________________________________________________________________ Dimensions in mm 132.7 30 81 1111-061 Figure 34 HMW90 Series Dimensions 59.5 29.8 4 .4 34 33.5 9 27 47.5 5 Ø 30.
Appendix A _________________________________________________________ BACnet Reference APPENDIX A BACNET REFERENCE This appendix describes the BACnet protocol implementation of the HMW90 series digital transmitters. BACnet Protocol Implementation Conformance Statement This statement is a part of the BACnet standard and is required for its use. Vendor Name: Vaisala Oyj Product Name: HMW90 Product Model Numbers: HMW95 Applications Software Version: 1.0.0 Firmware Version: 1.0.0.
User's Guide _______________________________________________________________________ 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 Program Schedule Trend Log Data Link Layer Options BACnet Internet Protocol (IP) (Annex J)
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 Table 19 below describes the properties of the 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) Writable Value or Initial Value (Conforma nce Code) Object_List BACnetARRAY[N]of N (R) Device Object BACnetObjectIdentifier AI2 (Relative Humidity) AI3 (Temperature) AI4 (Dewpoint) AI5 (Dewpoint (Tdf)) AI6 (Dewpoint depression) AI7 (Wet bulb temperature) AI8 (Absolute humidity) AI9 (Mixing ratio) AI10 (Enthalpy) AV1 (Pressure) AV2 (Altitude) Max_APDU_Length_ Unsigned16 N (R) 244 Acce
User's Guide _______________________________________________________________________ Protocol_Services Who-Is, I-Am, Who-Has, I-Have and UnconfirmedCOVNotification services are available only when HMW90 is MS/TP master. Reinitialize Device service must be password protected. According to BACnet protocol, password is character string having max 20 characters. Default password is "1234". Password can be changed through the service port by using the BACNET command.
Appendix A _________________________________________________________ BACnet Reference Status Flags Table 21 Status Flags Flag IN_ALARM FAULT State FALSE TRUE FALSE OVERRIDDEN OUT_OF_SERVICE TRUE FALSE FALSE TRUE Cause Event State equals 0 (NORMAL) Event State not 0 Reliability equals 0 (NO FAULT DETECTED) Reliability not 0 Always FALSE Present Value may NOT be written via BACnet Present Value may be written via BACnet Reliability Table 22 Reliability State 0 NO_FAULT_DETECTED 1 NO_SENSOR 2 OVER_RA
User's Guide _______________________________________________________________________ Temperature Object Table 24 Property Temperature Object Properties Object_Identifier BACnetObjectIdentifier Writable (Conformance Code) No (R) Object_Name Object_Type No (R) No (R) Present_Value Data type (Application Type) CharacterString BACnetObjectType (ENUMERATED) Real Value or Initial Value Persistence 00 00 00 03 (hex) Object Type = 0, Instance = 3 "T" 0 (Analog Input) Nonvolatile Yes 0.
Appendix A _________________________________________________________ BACnet Reference Reliability Table 26 Reliability State 0 NO_FAULT_DETECTED 1 NO_SENSOR 2 OVER_RANGE 3 UNDER_RANGE 7 UNRELIABLE_OTHER Cause No contact to measurement module T over +80 °C T under -40 °C Other measurement error Event State Table 27 Event State State 0 NORMAL 1 FAULT Cause Reliability equals 0 (NO FAULT DETECTED) Reliability not 0 Out of Service Out of Service value is writable. By Default = FALSE.
User's Guide _______________________________________________________________________ Calculated Humidity Objects These Analog Input Objects exist only in the HMW95 model.
Appendix A _________________________________________________________ BACnet Reference Status Flags Table 30 Status Flags Flag IN_ALARM FAULT State FALSE TRUE FALSE OVERRIDDEN OUT_OF_SERVICE TRUE FALSE FALSE TRUE Cause Event State equals 0 (NORMAL) Event State not 0 Reliability equals 0 (NO FAULT DETECTED) Reliability not 0 Always FALSE Present Value may NOT be written via BACnet Present Value may be written via BACnet Reliability Reliability of calculated humidity objects depends on reliability of R
User's Guide _______________________________________________________________________ Operation Pressure Object User can set current atmospheric pressure to improve the calculation accuracy of pressure dependent humidity parameters.
Appendix A _________________________________________________________ BACnet Reference Operation Altitude Object User can set current atmospheric pressure to improve the calculation accuracy of pressure dependant humidity parameters.
User's Guide _______________________________________________________________________ BIBBs Supported Table 37 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 38 below lists all the BACnet standard application services. The checked services are supported by the device.
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Appendix B _________________________________________________________ Modbus Reference APPENDIX B MODBUS REFERENCE This appendix describes the Modbus protocol implementation of the HMW90 series digital transmitters. NOTE If a register is not relevant for the transmitter model, it does not exist ("illegal data address" code is returned). Function Codes Conformance class 0 function codes are enough to access the measurement data and configuration settings of HMW90.
User's Guide _______________________________________________________________________ Register Map All data available via the Modbus interface is grouped in five contiguous blocks of registers as described in Table 40 below.
Appendix B _________________________________________________________ Modbus Reference NOTE A complete 32-bit floating point value should be read and written in a single Modbus transaction (for example, 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) and represented as described in the following table.
User's Guide _______________________________________________________________________ Status Registers (Read-Only) Table 43 HMW90 Modbus Status Registers Name Error code (bits 15…0) Address 0513,6913 Description 0 = no errors Configuration Registers Configuration parameter registers are used to configure the measurement. Writing out-of-range values is silently ignored. NOTE Elevation is linked to pressure according to the following equation: p = 101325 (1 - 2.25577 10-5 h)5.
Appendix B _________________________________________________________ Modbus Reference Device Identification Objects HMW90 Modbus conforms to the extended identification level defined in the Modbus Application Protocol Specification V1.1b. Both stream access and individual access to the objects is supported. Basic device identification consists of objects 0x00…0x02. Those values should be used if the device must be identified to establish its Modbus capabilities.
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