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Vaisala HMDW110 Series User Manual
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Vaisala HMDW110 Series User Manual

Vaisala HMDW110 Series User Manual

Vaisala humidity and temperature transmitter
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M211726EN-J
User Guide
Vaisala Humidity and Temperature
Transmitter Series
HMDW110 with TMI110

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Summary of Contents for Vaisala HMDW110 Series

  • Page 1 M211726EN-J User Guide Vaisala Humidity and Temperature Transmitter Series HMDW110 with TMI110...
  • Page 2 This product contains software developed The contents of this document are subject by Vaisala or third parties. Use of the to change without prior notice. software is governed by license terms and conditions included in the applicable...
  • Page 3 Introduction to HMDW110 series.................11 Output parameters explained................11 HMD110/112 and TMD110 parts................13 HMW110/112 and TMW110 parts................. 14 HMS110/112 parts....................16 TMI110 parts......................17 HMDW110 series component boards..............18 Analog output overrange behavior..............19 Safety........................19 ESD protection....................19 2.9.1 Installation......................20 Selecting location....................20 HMD110/112 and TMD110 installation..............
  • Page 4 HMDW110 with TMI110 User Guide M211726EN-J Serial line output and communication.............45 Measurement output................... 45 6.6.1 Measurement output format..............47 6.6.2 6.6.3 Serial line communication................49 Analog output......................51 Calibration and adjustment commands............53 Other commands....................57 Maintenance......................59 Cleaning........................59 Calibration and adjustment................59 7.2.1 Adjustment types..................60 7.2.2...
  • Page 5 Table of contents Modbus communication examples..............90 Maintenance and calibration services..............93 Technical support.....................93 Warranty........................93 Recycling........................93...
  • Page 6 Figure 9 HMW110/112 and TMW110 installation............23 Figure 10 Recommended installation locations for thermowell......28 Figure 11 HMDW110 series supply voltage operating region......... 31 Figure 12 HMD110/112, HMW110/112, and HMS110/112 wiring example, analog output................. 31 Figure 13 TMI110, TMW110, and TMD110 wiring, analog output......31...
  • Page 7 List of tables Table Document versions (English)................9 Table 2 Related manuals....................9 Table 3 HMDW110 series output parameters............. 11 Table 4 Modbus output M12 connector pinout............33 Table 5 HMW110 analog output M12 connector pinout......... 33 Table 6 TMW110 analog output M12 connector pinout..........33 Table 7 Default Modbus serial communication settings........34...
  • Page 8 HMDW110 with TMI110 User Guide M211726EN-J Table 46 Error codes in MI70..................76 Table 47 HMD110/112, TMD110, HMW110/112, TMW110, and HMS110/112 measurement performance............. 77 Table 48 HMD110/112, TMD110, HMW110/112, TMW110, and HMS110/112 calculated parameters...............77 Table 49 HMD110/112, TMD110, HMW110/112, HMW110, and HMS110/112 inputs and outputs..............
  • Page 9 Chapter 1 – About this document 1. About this document 1.1 Version information This document provides information for installing, operating, and maintaining HMDW110 series transmitters, including HMD110/112, TMD110, HMW110/112, TMW110, HMS110/112, and TMI110. Table 1 Document versions (English) Document Date Description...
  • Page 10 Indicates that you need to take some notes during the task. 1.4 Trademarks Vaisalaâ and HUMICAPâ are registered trademarks of Vaisala Oyj. Windowsâ is either a registered trademark or trademark of Microsoft Corporation in the United States and other countries.
  • Page 11 2.2 Output parameters explained HMDW110 series transmitters offer several output parameters. Relative humidity (RH) and temperature (T) are the measured parameters, the others are calculated based on RH and T. The TMD110 and TMW110 temperature transmitter models only measure temperature.
  • Page 12 HMDW110 with TMI110 User Guide M211726EN-J Parameter Symbol Units Description Dew point °C Temperature at which the water vapor in the air will condense into water at the current pressure. When the dew °F point is below 0 °C, the transmitter outputs frost point (T instead of dew point.
  • Page 13 RH and T sensors (TMD110: T sensor) Fastening flange Tightening screw for fastening flange Type label Transmitter cover with captive screws Display (optional) Component board Cable glands for 4–8 mm diameter cable More information ‣ HMDW110 series component boards (page 18)
  • Page 14 HMDW110 with TMI110 User Guide M211726EN-J 2.4 HMW110/112 and TMW110 parts M12 4-pin connector option Figure 2 HMW110/112 and TMW110 parts Screw holes for mounting (2 pcs) Cable gland for 4–8 mm diameter cable M12 4-pin male connector option Type label Component board Probe RH and T sensors (TMW110: T sensor)
  • Page 15 Chapter 2 – Product overview An M12-4F / M8-4M connection cable (length: 1.2 m (3.94 ft)) for HMW110 and TMW110 transmitters with the M12 connector is available as an accessory (Vaisala item code 279222SP). More information ‣ HMDW110 series component boards (page 18)
  • Page 16 HMDW110 with TMI110 User Guide M211726EN-J 2.5 HMS110/112 parts Figure 3 HMS110/112 parts...
  • Page 17 Chapter 2 – Product overview Radiation shield. Do not remove for installation, only when replacing the sensor or filter. Long screws that keep the radiation shield in place (2 pcs), 3 mm hex socket. Sensors for humidity and temperature under PTFE membrane filter (ASM210856SP). Component board.
  • Page 18 M211726EN-J 2.7 HMDW110 series component boards The component boards of the HMDW110 series transmitters have 2 output types: Modbus mode (RS-485) and analog mode (current output). The output type is selected when ordering the device. See the type label of the device to see the chosen output type.
  • Page 19 2.8 Analog output overrange behavior Analog outputs of the HMDW110 series transmitters have a defined behavior when the values measured by the transmitter are outside the scaled analog output range: • Output is clipped at the end of the scaled output range.
  • Page 20 HMDW110 with TMI110 User Guide M211726EN-J 3. Installation 3.1 Selecting location When mounting duct model transmitters: • Avoid installing in a location where condensation may fall on the sensor inside the duct. • Position the sensor in the center of the duct. •...
  • Page 21 Chapter 3 – Installation Ø ≥13 Figure 7 HMD110/112 and TMD110 installation 1. Remove the yellow transport protection cap and separate the fastening flange from the transmitter. 2. Use the flange to mark the location and size of the installation holes on the side of the duct.
  • Page 22 Connect the wires to the screw terminals according to the wiring instructions. 7. Tighten the cable gland(s) and close the transmitter cover. More information ‣ HMDW110 series component boards (page 18) ‣ Wiring devices with analog output (page 30) ‣ Wiring devices with Modbus output (page 32) 3.3 HMW110/112 and TMW110 installation...
  • Page 23 HMW110 and TMW110 transmitters with the M12 connector is available from Vaisala (item code: 279222SP). More information ‣ HMDW110 series component boards (page 18) ‣ Wiring devices with analog output (page 30) ‣ Wiring devices with Modbus output (page 32)
  • Page 24 2. Route the power and signal cable through the cable gland, and connect the wires to the screw terminals according to the wiring instructions: • Wiring devices with analog output (page 30) • Wiring devices with Modbus output (page 32) For the arrangement of the screw terminals, see HMDW110 series component boards (page 18).
  • Page 25 Chapter 3 – Installation 3. Adjust the length of cable between the cable gland and the terminal blocks. Make the cable short enough to close the cover without leaving a cable loop in the transmitter. 4. Disconnect the wired screw terminal blocks by pulling them off from the component board.
  • Page 26 HMDW110 with TMI110 User Guide M211726EN-J 6. Wall installation mounting: a. Drill two holes for wall plugs 100 mm apart. b. Place the wall plugs in the holes. c. Mount the transmitter using two screws of sufficient length. 100 mm Ø...
  • Page 27 Chapter 3 – Installation 7. Plug in the screw terminal blocks, close the cover, and tighten the screws. 8. Secure the cable to the pole using a zip tie, or on the wall using cable clips. Allow some cable to hang down from the cable gland to prevent water from entering the transmitter along the cable.
  • Page 28 HMDW110 with TMI110 User Guide M211726EN-J Figure 10 Recommended installation locations for thermowell 1. Insert a small amount of heat transfer paste into the thermowell.
  • Page 29 Chapter 3 – Installation 2. Insert the probe into the thermowell. 3. Open the cable gland and the screws that hold the transmitter cover.
  • Page 30 6. Tighten the cable gland and close the transmitter cover. 3.6 Wiring devices with analog output HMDW110 series transmitters are designed for a supply voltage range of 10–28 V DC. The minimum required voltage depends on the loop resistance (0–600 Ω) as shown below.
  • Page 31 Supply voltage (V DC) Figure 11 HMDW110 series supply voltage operating region With HMDW110 series transmitters ordered with analog output, you must always connect the first current loop (terminals 5 and 6) to power the transmitter. With models HMD110/112, HMW110/112, and HMS110/112, connecting the second current loop (terminals 7 and 8) is optional.
  • Page 32 1 RS485+ RS-485 - RS-485 common Figure 15 HMDW110 series transmitter wiring, Modbus output Do not connect the analog outputs (terminals 5–8) at the same time when supply power and/or Modbus output is connected to terminals 1–4. Having both terminals connected simultaneously may result in erroneous analog readings...
  • Page 33 Table 5 (page 33), and Table 6 (page 33). An M12-4F / M8-4M connection cable (length: 1.2 m (3.94 ft)) is available as an accessory (Vaisala item code: 279222SP). Table 4 Modbus output M12 connector pinout Connector pinout Function Pin 1...
  • Page 34 Number of stop bits Modbus device address Serial delay Communication mode Modbus RTU Use Vaisala Insight software to change the Modbus serial communication settings if needed. Download Insight software at www.vaisala.com/insight. More information ‣ Vaisala Insight PC software (page 35)
  • Page 35 Chapter 5 – Vaisala Insight PC software 5. Vaisala Insight PC software Vaisala Insight PC software can be used to check, configure, and adjust HMDW110 series transmitters intuitively without typing any serial commands. The transmitter can be connected to Insight software using a Vaisala USB service cable (item code 219690).
  • Page 36 3. Connect the USB cable to the service port of the transmitter. 4. Wait for Insight software to detect the transmitter. If the transmitter is not detected, disconnect and reconnect the Vaisala USB cable to the service port connector of the transmitter.
  • Page 37 Chapter 5 – Vaisala Insight PC software 3. Locate the cable in the list of devices: • If the device is listed as Vaisala USB Device with a COM port number in brackets, the cable is ready for use. • If the device is listed as Vaisala USB Instrument Cable without a COM port number listed, you must install the driver manually.
  • Page 38 The RS-485 line of the service port is shared with the connection to RS-485 Modbus output; the M8 service port connector is just an additional connector for easier access. Before plugging in the Vaisala USB cable (219690) to the service port, perform the following steps: 1. Open the cover of the HMDW110 series transmitter.
  • Page 39 • Eight data bits • One stop bit • Number of the virtual COM port that has been created for your cable by the Vaisala USB driver. You can check which port the USB cable is using with the Vaisala USB Device Finder application that has been installed in the Windows Start menu.
  • Page 40 • Free USB port • Driver for Vaisala USB cable installed • Vaisala USB cable for computer connection (219690) 1. Connect the USB cable to the PC and install the driver, if necessary. Do not connect the cable to the transmitter yet.
  • Page 41 Chapter 6 – Using service port with terminal application Command Description time Show transmitter uptime (time since last reset). Serial line output and communication addr Show or set device address. close Close connection to device in POLL mode. form Set output format of measurement messages. intv Set measurement output interval.
  • Page 42 : H0090003 Sensor model : Humicap 180R Order code : HMD1102A1VA1 Cal. date : 20140619 Cal. info : VAISALA/HEL Time : 01:43:43 Serial mode : STOP Baud P D S : 19200 N 8 1 Output interval: 5 S Serial delay...
  • Page 43 Chapter 6 – Using service port with terminal application Syntax Description Example (no active errors): errs 0000h No errors Table 11 Error messages on ERRS command ERRS command response Corresponding error T MEAS error Temperature measurement error. [44] F meas error Humidity measurement error.
  • Page 44 HMDW110 with TMI110 User Guide M211726EN-J Syntax Description Example: help ADDR AERR AMODE AOVER ASEL ATEST CDATE CLOSE CRHCLR CTCLR CTEXT ERRS FCRH FILT FORM FRESTORE HELP INTV OPEN RESET SDELAY SEND SERI SMODE SYSTEM TIME UNIT Table 13 System command Syntax Description system<cr>...
  • Page 45 Chapter 6 – Using service port with terminal application Syntax Description Example: system Device Name : HMDW110 Copyright : Copyright (c) Vaisala Oyj 2017. All rights reserved. SW Name : HMP113 SW date : 2018-01-03 SW version : 2.2.3 HMDW HW version Table 14 Time command...
  • Page 46 HMDW110 with TMI110 User Guide M211726EN-J Table 16 R command Syntax Description r<cr> Start the continuous outputting of measurement values as an ASCII text string to the serial line. Example (measurement message in default format): T= 22.8 'C RH= 39.5 %RH Td= 8.3 'C Tw= 14.5 'C h= 40.4 kJ/kg T= 22.8 'C RH= 39.5 %RH Td= 8.3 'C Tw= 14.5 'C h= 40.4 kJ/kg Table 17 S command Syntax...
  • Page 47 Chapter 6 – Using service port with terminal application Syntax Description Example: intv 5 s Output interval: 5 S 6.6.2 Measurement output format Table 19 Unit command Syntax Description unit<cr> Show current setting of the unit command. unit [m|n]<cr> Set types of units used on the serial line. m = metric units, for example, Celsius n = non-metric units, for example, Fahrenheit Example (set units to non-metric):...
  • Page 48 HMDW110 with TMI110 User Guide M211726EN-J Syntax Description Example: set output format as RH and T, with start of text (ASCII character 002) and end of text (003) ASCII codes, and without line feed and carriage return at the end: form #002 3.1 "RH="...
  • Page 49 Chapter 6 – Using service port with terminal application Modifier Description Modulus-65536 checksum of message sent so far, ASCII encoded hexadecimal notation NMEA xor-checksum of message sent so far, ASCII encoded hexadecimal notation You can also use the hash character # instead of the backslash character \. 6.6.3 Serial line communication Table 23 Open command Syntax...
  • Page 50 HMDW110 with TMI110 User Guide M211726EN-J Syntax Description Example (shows 0 as current address, enter 5 as the new address): addr Address : 0 ? 5 Table 26 Seri command Syntax Description seri<cr> Show current serial line settings. seri [baud p d s]<cr> Set new serial line settings for RS-485 line (also affects the service port).
  • Page 51 Chapter 6 – Using service port with terminal application Table 28 Smode command Syntax Description smode<cr> Show current start-up operating mode of the serial line, and prompt to enter new mode. New mode is taken into use when the device is reset or powered up.
  • Page 52 HMDW110 with TMI110 User Guide M211726EN-J Syntax Description aerr [ch1] [ch2]<cr> Set error level for both channels without prompting. ch1 = error level for analog output channel 1 in ch2 = error level for analog output channel 2 in Example (set error level for both analog output channels to 21 mA): aerr Ch1 error out : 3.600 I ? 21 Ch2 error out : 3.600 I ? 21...
  • Page 53 Chapter 6 – Using service port with terminal application Table 32 Asel command Syntax Description asel ?<cr> Show currently set analog output parameters and scaling. asel<cr> Show currently set analog output parameters and scaling, prompt to enter new scaling values. asel [ch1 ch2]<cr> Set new output parameters for both channels, prompt to enter new scaling values.
  • Page 54 HMDW110 with TMI110 User Guide M211726EN-J Table 33 Cdate command Syntax Description cdate<cr> Show currently stored calibration date. cdate [yyyymmdd]<cr> Set a new calibration date. yyyymmdd = Date in format year (yyyy) month (mm) date (dd). Example (set calibration date to June 1st, 2018): cdate 20180601 Cal.
  • Page 55 Chapter 6 – Using service port with terminal application Table 36 Ct command Syntax Description ct<cr> Start the two-point temperature calibration and adjustment sequence. For a full adjustment procedure, see Two-point temperature calibration and adjustment using computer (page 67). ct [ref]<cr> Perform a one-point adjustment at the current temperature.
  • Page 56 HMDW110 with TMI110 User Guide M211726EN-J Table 39 Fcrh command Syntax Description fcrh<cr> Start the two-point humidity calibration and adjustment sequence. If you have changed the humidity sensor of the device yourself, you must perform a two-point humidity calibration and adjustment using this command. Follow the procedure in Two-point humidity calibration and adjustment using computer and HMK15...
  • Page 57 Chapter 6 – Using service port with terminal application Syntax Description Example (shows adjustment has been applied to humidity measurement offset, overwrites it with Cp offset : -1.50922060E-01 ? 0 Cp gain : 1.00000000E+00 ? T offset : 0.00000000E+00 ? T gain : 1.00000000E+00 ? 6.9 Other commands Table 42 Filt command...
  • Page 58 HMDW110 with TMI110 User Guide M211726EN-J Table 43 Frestore command Syntax Description frestore<cr> Restores the factory default settings. All user- made settings are lost, including user calibration. Reset the transmitter after giving this command. ® If you have replaced the HUMICAP humidity sensor of the device yourself, you must redo the two-point humidity calibration using the FCRH...
  • Page 59 Do not attempt to clean contaminated HUMICAPâ sensors or filters. Instead, replace them with new parts. Filters and sensors can be purchased from Vaisala. More information ‣ Spare parts and accessories (page 83) 7.2 Calibration and adjustment...
  • Page 60 M211726EN-J 7.2.1 Adjustment types You can perform a one-point calibration and adjustment with Vaisala handheld meters that utilize the MI70 measurement indicator (for example, HM70). Connecting to the service port using a computer and a terminal program allows you to perform calibration and adjustment tasks using serial commands.
  • Page 61 • Connection cable for HM70 handheld meter (219980SP) • Medium size crosshead screwdriver (Pozidriv). 1. Insert the reference probe in the same environment as the probe of the HMDW110 series transmitter. You can also perform this procedure in the ambient environment, as long as it is reasonably stable.
  • Page 62 HMDW110 series transmitter and the reference probe. Depending on the result, proceed as follows: • If the HMDW110 series transmitter is within its accuracy specification, there is no need to proceed with the adjustment. Select Back > Exit to leave the adjustment mode.
  • Page 63 This prevents the communication between the transmitter and the Modbus (RS-485) host from interfering with your connection. 2. Plug in the connection cable 219980SP to the service port of the HMDW110 series transmitter, and the other end to port I of the MI70 indicator. If any other probes are connected to the MI70, disconnect them.
  • Page 64 • Driver for Vaisala USB cable installed • Vaisala USB cable for computer connection (219690) • Vaisala HMK15 Humidity Calibrator with LiCl (11 %RH) and NaCl (75 %RH) salt solutions prepared. Other solutions may be used, but the difference between the two points must be ≥...
  • Page 65 This prevents the communication between the transmitter and the Modbus (RS-485) host from interfering with your connection. 2. Plug in connection cable 219690 to the service port of the HMDW110 series transmitter, and the other end to a free USB port on your computer.
  • Page 66 HMDW110 with TMI110 User Guide M211726EN-J 9. Give the crh command to start the calibration and adjustment sequence. The transmitter shows the measured RH value and prompts you to enter the real humidity of the first reference point. RH : 11.5378 1. ref ? 10.
  • Page 67 18. Disconnect the connection cable from the service port. 19. Reconnect the terminal blocks and close the cover. 7.6 Two-point temperature calibration and adjustment using computer You can also use Vaisala Insight software for performing calibration and adjustment. See Vaisala Insight PC software (page 35).
  • Page 68 This prevents the communication between the transmitter and the Modbus (RS-485) host from interfering with your connection. 2. Plug in connection cable 219690 to the service port of the HMDW110 series transmitter, and the other end to a free USB port on your computer.
  • Page 69 Chapter 7 – Maintenance 9. Press Enter to refresh the measured value (to see if the measurement is now stable). When it is, enter the value of the first reference point (in degrees Celsius) and press Enter. T : 22.9424 1. ref ? <cr> T : 22.9424 1.
  • Page 70 2. Duct models only: loosen the tightening screw on the fastening flange and pull the probe out of the duct. 3. Remove the filter to access the sensors. Vaisala HUMICAPâ sensor. Handle by the plastic frame. Temperature sensor. Do not touch or attempt to remove.
  • Page 71 Chapter 7 – Maintenance 7. Duct models only: push the probe back into the duct, to the same depth where it was before. Tighten the tightening screw on the fastening flange. 8. Power up the transmitter. More information ‣ Two-point humidity calibration and adjustment using computer and HMK15 Humidity Calibrator (page 64) 7.8 Replacing HUMICAP sensor on HMS110/112 •...
  • Page 72 HMDW110 with TMI110 User Guide M211726EN-J 7. Remove the filter to access the sensors. Vaisala HUMICAPâ sensor. Handle by the plastic frame. Temperature sensor. Do not touch or attempt to remove. Sensor socket. Transmitter probe. 8. Pull out the old HUMICAPâ sensor and insert the new one.
  • Page 73 When replacing the filter, note that there are two alternative filter options. The default filter in all HMDW110 series transmitters is the PTFE membrane filter (item code ASM210856SP). A porous PTFE filter (item code DRW239993SP) is also available as an accessory.
  • Page 74 If you experience problems when using the transmitter, check the following table before contacting Vaisala. If the problem you have is not listed in the table, or if the proposed solution does not fix the problem, contact a Vaisala Service Center. For contact information, see Technical support (page 93).
  • Page 75 Temperature Temperature sensor is Check that the legs of the temperature sensor measurement error. short circuited, are not short circuited. Contact Vaisala if the [44] damaged, or missing. temperature sensor is damaged. Humidity Humidity sensor is wet. Wait for the humidity sensor to dry, or remove measurement error.
  • Page 76 You can check the current serial settings of your transmitter by connecting to the serial line, or with Vaisala Insight software. More information ‣ Vaisala Insight PC software (page 35) ‣ Accessing service port command interface in devices with Modbus output (page 39)
  • Page 77 Chapter 9 – Technical data 9. Technical data 9.1 HMD110/112, TMD110, HMW110/112, TMW110, and HMS110/112 specifications Table 47 HMD110/112, TMD110, HMW110/112, TMW110, and HMS110/112 measurement performance Parameter Description/Value Relative humidity Measurement range 0–100 %RH Accuracy: at +10 … +30 °C (+50 … +86 °F) ±2 %RH (0–90 %RH) ±3 %RH (90–100 %RH) at −20 …...
  • Page 78 HMDW110 with TMI110 User Guide M211726EN-J Property Description/Value Enthalpy −40 … 1530 kJ/kg (−9.6 … 648 BTU/lb) 1) 2) Accuracy Dew point ±0.7 °C (1.2 °F) Wet bulb temperature ±0.5 °C (0.9 °F) Enthalpy ±1.6 kJ/kg (0.7 BTU/lb) At +20 °C (+68 °F) and 80 %RH. Accuracy of the calculated parameters should be calculated at the actual condition based on the RH and temperature specification.
  • Page 79 CISPR 32 / EN 55032, Class B Compliance marks CE, RCM HMDW110 series probes (HMD110/112, TMD110, HMW110/112, TMW110, and HMS110/112) fulfill the requirements for industrial electromagnetic environment, considering that a maximum permissible electrostatic air discharge of ±7 kV has been specified for this product.
  • Page 80 HMDW110 with TMI110 User Guide M211726EN-J Property Description/Value Response time (T63) at +20 °C (+68 °F) < 8 s typical Temperature sensor Pt1000 RTD Class A, IEC 60751 Factory calibration uncertainty at +20 °C ±0.1 °C (±0.18 °F) (+68 °F) Table 54 TMI110 inputs and outputs Property Description/Value...
  • Page 81 Chapter 9 – Technical data Table 56 TMI110 compliance Property Description/Value EU directives and regulations EMC Directive (2014/30/EU) RoHS Directive (2011/65/EU) as amended by 2015/863 Electrical safety EN 61326‑1, industrial environment EMC emissions CISPR 22 / EN 55022, Class B Compliance marks CE, RCM Table 57 TMI110 mechanical specifications Property...
  • Page 82 HMDW110 with TMI110 User Guide M211726EN-J 40.6 Ø10 Ø3.5 Ø3.5 Ø10 Ø12 Ø4...8 [in] Figure 18 HMW110/112 and TMW110 dimensions Ø5.5 Ø4 ... 8 [in] 121.5 264.2 Figure 19 HMS110/112 dimensions...
  • Page 83 Chapter 9 – Technical data 72 [2.83] 145 [5.71] 40.6 [1.60] 100 [3.94] Ø 6 [0.24] 100 mm probe (3.94 in) Ø 4 ... 8 [0.16 ... 0.31] 245 [9.65] (200 mm probe) 195 [7.68] (150 mm probe) 40.6 [1.60] 200 [7.87] (200 mm probe) 150 [5.90]...
  • Page 84 HMDW110 with TMI110 User Guide M211726EN-J Description Item code Fastening flange assembly (screws included) ASM210771SP Porous PTFE filter DRW239993SP Membrane filter ASM210856SP Terminal block, blue 236620SP USB cable for PC connection 219690 Connection cable (M12-4F / M8-4M), length 1.2 m 279222SP Connection cable for HM70 handheld meter 219980SP...
  • Page 85 Appendix A – Modbus reference Appendix A. Modbus reference A.1 Default communication settings The following table lists the default Modbus serial settings of devices ordered with the Modbus configuration option. Table 60 Default Modbus serial communication settings Description Default value Serial bit rate 19200 Parity Number of data bits...
  • Page 86 HMDW110 with TMI110 User Guide M211726EN-J Despite the specification, some Modbus masters may expect "big-endian" word order (most significant word first). In such case, you must select "word-swapped" floating point format in your Modbus master for the Modbus registers of the device. Reading the measurement data registers with incorrect floating point format setting may occasionally result in correct-looking values.
  • Page 87 Appendix A – Modbus reference Table 63 TMI110 Modbus measurement data register (read-only) Register number Address Register description Data format Unit (decimal) (hexadecimal) 0x0002 Temperature 32-bit float °C A.4.2 Status registers Table 64 Modbus status registers (read-only) Register Address Register description Data format Notes number (hexadecimal)
  • Page 88 HMDW110 with TMI110 User Guide M211726EN-J Error code Corresponding error register value 16384 Calibration certificate checksum mismatch. [58] Applicable to transmitters with humidity measurement. If several errors are active at the same time, the Modbus Error Code register contains the sum of currently active error codes.
  • Page 89 ProductCode "HMDW110" 0x02 MajorMinorVersion Software version (for example "2.2.0") 0x03 VendorUrl "http://www.vaisala.com/" 0x04 ProductName "Vaisala HUMICAPâ Humidity and Temperature Transmitter HMDW110" 0x80 Transmitter serial number (for SerialNumber example, "D0710040") 0x81 Date of the factory calibration (for CalibrationDate example, "2022-08-07") 0x82...
  • Page 90 HMDW110 with TMI110 User Guide M211726EN-J A.5 Modbus communication examples Reading relative humidity value The device address used in the following examples is 240 (0xF0). The values returned by the device differ depending on the ambient conditions and/or device settings. Your device might not return exactly same values. Request Response Bytes on the line...
  • Page 91 Appendix A – Modbus reference Writing filtering factor value Request Response Bytes on the line Description Bytes on the line Description (hexadecimal) (hexadecimal) (silence for 3.5 bytes) Start of Modbus RTU (silence for 3.5 bytes) Start of Modbus RTU frame frame 0xF0 Transmitter address...
  • Page 93 Maintenance and calibration services Vaisala offers comprehensive customer care throughout the life cycle of our measurement instruments and systems. Our factory services are provided worldwide with fast deliveries. For more information, see vaisala.com/calibration. • Vaisala Online Store at store.vaisala.com is available for most countries. You can browse the offering by product model and order the right accessories, spare parts, or maintenance and calibration services.
  • Page 96 vaisala.com...

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