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Summary of Contents for Vaisala HUMICAP HMM170
- Page 1 M212259EN-D User Guide â Vaisala HUMICAP Humidity and Temperature Module HMM170...
- Page 2 English versions are This product contains software developed applicable, not the translations. by Vaisala or third parties. Use of the The contents of this document are subject software is governed by license terms and to change without prior notice.
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Page 3: Table Of Contents
Selecting probe mounting location and method.........17 Installing probe....................18 Operation......................19 Using service port....................19 5.1.1 Installing driver for the USB service cable..........19 Modbus......................20 Vaisala Insight software.................20 5.3.1 Connecting to Insight software.............20 5.3.2 Configuration options................21 5.3.3 Configuring condensation prevention........... 21 Maintenance.................... - Page 4 HMM170 User Guide M212259EN-D Dimensions......................29 Accessories and spare parts................. 30 Appendix A: Modbus reference..............32 Default communication settings..............32 Function codes....................32 Data encoding....................32 A.3.1 32-bit floating point or 32-bit integer format........33 A.3.2 16-bit integer format................33 Modbus registers.................... 34 A.4.1 Measurement data registers..............34 A.4.2 Configuration registers................
- Page 5 List of figures List of figures Figure 1 HMM170 probe head dimensions..............10 Figure 2 HMM170 component board................16 Figure 3 HMM170 probe installation through a wall..........17 Figure 4 Connecting module to Insight.................21 Figure 5 Temperature measurement accuracy over temperature range.... 27 Figure 6 HMM170 probe head dimensions..............
- Page 6 HMM170 User Guide M212259EN-D List of tables Table Document versions (in English)..............5 Table 2 Related manuals....................5 Table 3 HMM170 sensor types..................8 Table 4 Availability of output parameters..............9 Table 5 Filter types and properties................11 Table 6 LED indicator states................... 11 Table 7 HMM170 measurement performance............26 Table 8...
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Page 7: About This Document
Chapter 1 – About this document 1. About this document 1.1 Version information This document provides instructions for installing, operating, and maintaining Vaisala HUMICAPâ Humidity and Temperature Module HMM170. Table 1 Document versions (in English) Document code Date Description M212259EN-D June 2021 This manual. -
Page 8: Documentation Conventions
Indicates that you need to take some notes during the task. 1.4 Trademarks Vaisalaâ and HUMICAPâ are registered trademarks of Vaisala Oyj. Modbusâ is a registered trademark of Schneider Automation Inc. All other product or company names that may be mentioned in this publication are trade... -
Page 9: Product Overview
An integrated service port enables a quick and simple way to configure, check, and calibrate the module with the help of a USB cable and Vaisala Insight PC software. In addition, the footprint of the HMM170 component board enables easy update for Vaisala HMM100 users. -
Page 10: Sensor Types
HMM170 User Guide M212259EN-D • Service port for maintenance • Optional USB cable for easy connection to Vaisala Insight software for configuration, diagnostics, and temporary online monitoring 2.3 Sensor types HMM170 is available with three different sensor types. Table 3 HMM170 sensor types... -
Page 11: Output Parameters
Chapter 2 – Product overview 2.4 Output parameters Output parameter is available Output parameter is unavailable unless real temperature is written to Modbus register 0334 from an external source Output parameter is locked (value stays at latest valid reading) until measurement is possible again Output parameter is not valid for sensor type Table 4 Availability of output parameters... -
Page 12: Probe Head
HMM170 User Guide M212259EN-D Output parameter Output range HUMICAPâ R2C and 180VC sensor HUMICAPâ 180L2 sensor Water concentration 0 … 100 vol-% (wet basis) Water mass fraction 0 … 10 Wet-bulb temperature 0 … +100 °C Water vapor pressure 0 … 1000 hPa Water vapor saturation 0 …... -
Page 13: Led Indicator
Module is powered off or LED functionality is disabled. Green Module is powered on and ready for operation. Green and blinking Module is powering up or communicating using Modbus. Module is in error state. You can use Vaisala Insight software to disable the LED indicator. -
Page 14: Safety
2.8.1 ESD protection Electrostatic Discharge (ESD) can damage electronic circuits. Vaisala products are adequately protected against ESD for their intended use. However, it is possible to damage the product by delivering electrostatic discharges when touching, removing, or inserting any objects in the equipment housing. -
Page 15: Functional Description
Disabling the automatic purge is not possible. HUMICAPâ 180L2 sensor does not support chemical purge. You can trigger a purge manually at any time with Vaisala Insight software or Modbus, or by closing the external purge trigger on the component board. -
Page 16: Condensation Prevention Functions
Use of condensation prevention is controlled by a single setting that can be changed with Insight software or using Modbus protocol. By default, condensation prevention is off. However, HMM170 can be ordered from Vaisala with the feature enabled. - Page 17 Even if condensation prevention has been turned on, probe heating is not active if supply voltage is below 18 V DC. For example, this is the case when HMM170 is connected to Insight software using the Vaisala USB cable 219690. More information...
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Page 18: Installation
HMM170 User Guide M212259EN-D 4. Installation 4.1 Installing module Figure 2 HMM170 component board Service port (temporary connection, USB cable with Vaisala Insight SERVICE software) Digital RS-485 (Modbus) port D+ D− GND LED indicator Grounding point Mounting holes in the shaded area match the mounting holes on HMM100 humidity module Power input (12 ... -
Page 19: Selecting Probe Mounting Location And Method
This prevents measurement inaccuracy caused by heat conduction along the cable. The duct installation kit (Vaisala item code 210697) is a good accessory for this purpose as it allows the probe to be placed at a sufficient distance from the outer walls of the chamber or duct. -
Page 20: Installing Probe
CAUTION! The measurement probe with cable is attached to the component board at Vaisala. Do not disconnect and reconnect the cable. 1. Remove the yellow protection cap from the probe. 2. Mount the probe head in the selected location using the applicable installation accessories. -
Page 21: Operation
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. Note the COM port number, you will need it later. -
Page 22: Modbus
• Configure device features such as measurement filtering, chemical purge, heating, and serial communication Download Vaisala Insight software at www.vaisala.com/insight. HMM170 can be connected to Vaisala Insight software using a Vaisala USB cable (item code 219690). 5.3.1 Connecting to Insight software •... -
Page 23: Configuration Options
Chapter 5 – Operation SERVICE D+ D− GND + VIN − + CH1 − + CH2 − + CH3 − PURGE Figure 4 Connecting module to Insight 1. Open Insight software. 2. Connect the USB adapter to a free USB port on the PC or USB hub. 3. -
Page 24: Maintenance
HMM170 User Guide M212259EN-D 6. Maintenance 6.1 Cleaning probe • Lint-free cloth • Isopropyl alcohol (70 %) CAUTION! Do not attempt to clean the sensors (other than the HUMICAPâ 180L2 sensor) under the filter in any way. 1. Moisten a lint-free cloth with isopropyl alcohol (70 %). 2. -
Page 25: Replacing Filter
When adjustment is necessary, you can have Vaisala calibrate and adjust the module. To order calibration services from Vaisala, visit store.vaisala.com. You can also do the adjustment... -
Page 26: Adjustment Points And Requirements
Make sure the measurement has stabilized and the reference environment is reliable. If the required adjustment is still too large, the module needs to be serviced by Vaisala. When adjustment of humidity measurement is necessary, Vaisala recommends adjusting in two points, 11 %RH and 75 %RH. -
Page 27: Adjusting Measurement With Insight Software
Chapter 6 – Maintenance 6.4.2 Adjusting measurement with Insight software • Computer with Windows operating system and Vaisala Insight software installed • Vaisala USB cable 219690 for connecting the module • Reference environment(s) for producing the desired humidity and/or temperature This procedure can be used to adjust the module's humidity or temperature measurement. If you want to adjust both, repeat the procedure. -
Page 28: Technical Data
â 180VC sensor, accuracy is not specified below −20 °C (−4 °F) operating With HUMICAP temperature. Defined as ±2 standard deviation limits. Small variations possible; see also calibration certificate. â R2C sensor. At +20 °C (+68 °F) in 0.1 m/s air flow with Vaisala HUMICAP... -
Page 29: Figure 5 Temperature Measurement Accuracy Over Temperature Range
Chapter 7 – Technical data °C °C -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 -0.7 Figure 5 Temperature measurement accuracy over temperature range Table 8 HMM170 operating environment Property Description/Value Operating temperature for component board −40 … +60 °C (−40 … +140 °F) Operating humidity for component board 0 …... -
Page 30: Table 10 Hmm170 Output Parameters
HMM170 User Guide M212259EN-D Property Description/Value when condensation prevention and chemical 12 – 35 V DC purge features are not used all features available 18 – 35 V DC or 24 V AC ±10 % Power consumption Analog outputs 12 mA (voltage), 50 mA (current) Chemical purge at 24 V DC +220 mA Warmed probe at 24 V DC... -
Page 31: Dimensions
Chapter 7 – Technical data Property Description/Value Compliance marks CE, China RoHS, RCM HMM170 is excluded from the scope of EMC-Directive (2014/30/EU) because it is an electronic module intended to be used only as a component by a professional manufacturer and not an "Apparatus"... -
Page 32: Accessories And Spare Parts
Swagelok NPT 1/2" adapter for probe SWG12NPT12 Swagelok ISO 1/2" adapter for probe SWG12ISO12 Duct installation kit for probe 210697 Vaisala Insight software for Windows available at www.vaisala.com/insight Table 14 HMM170 spare parts Item Item code PPS plastic grid and stainless steel mesh filter... - Page 33 Chapter 7 – Technical data Item Item code Sintered PTFE filter with 20 μm pore size 219452SP Stainless steel filter HM47453SP...
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Page 34: Appendix A: Modbus Reference
HMM170 User Guide M212259EN-D Appendix A. Modbus reference A.1 Default communication settings Table 15 Default Modbus communication settings Property Description/Value Serial bit rate 19200 Parity None Number of data bits Number of stop bits Flow control None Modbus device address 240 You can use up to ten devices on the same RS-485 line. You must configure each device on the line to have a different Modbus address. -
Page 35: 32-Bit Floating Point Or 32-Bit Integer Format
Appendix A – Modbus reference A.3.1 32-bit floating point or 32-bit integer format Registers using 32-bit float data format are encoded using the binary32 encoding defined in IEEE 754. The format is also known as "single-precision floating point format". The least significant 16 bits of a floating point number are placed at the Modbus register listed in the table, while the most significant 16 bits are placed in the register with number/ address + 1, as specified in Open Modbus TCP Specification, Release 1.0. -
Page 36: Modbus Registers
HMM170 User Guide M212259EN-D A.4 Modbus registers Registers are numbered in decimal, starting from 1. Register addresses in actual Modbus messages (Modbus Protocol Data Unit (PDU)) are in hexadecimal and start from zero. Register number 1 corresponds to address 0 in the actual Modbus message. CAUTION! Reading the wrong register(s) may result in correct-looking values. - Page 37 Appendix A – Modbus reference Register Address Register description Data format Unit number 0014 Water concentration 32-bit float 0015 0016 Water vapor pressure 32-bit float 0017 0018 Water vapor saturation 32-bit float pressure 0019 001A Enthalpy 32-bit float kJ/kg 001B 001C Water activity 32-bit float...
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Page 38: Table
HMM170 User Guide M212259EN-D Table 19 Integer measurement data registers (read-only) Register Address Register description Data format Unit number 0100 Relative humidity 16-bit signed %RH * 100 integer 0101 Temperature 16-bit signed °C * 100 integer 0103 Dew point temperature 16-bit signed °C * 100 integer 0104... -
Page 39: Configuration Registers
Appendix A – Modbus reference Register Address Register description Data format Unit number 0115 Water concentration (wet 16-bit signed vol-% * 100 basis) integer 0116 Relative humidity (dew/frost) 16-bit signed %RH * 100 integer 0120 Water mass fraction 16-bit signed integer A.4.2 Configuration registers Table 20 Modbus configuration data registers (writable) - Page 40 HMM170 User Guide M212259EN-D Register Register Register description Data format Unit / Valid range number address General 2561 0A00 User information Text Text string of 24 bytes in UTF-8 encoding 0A01 0A02 0A03 0A04 0A05 0A06 0A07 0A08 0A09 0A0A 0A0B Compensation setpoints 0300...
- Page 41 Appendix A – Modbus reference Purge 1284 0503 Startup purge on/off 16-bit boolean 0 = Off 1 = On Filtering 031A Measurement filtering factor 32-bit float Range: 0.000 ... 1.000 1.000 = Reading shows 031B 100 % of the most recent measured value (no filtering, default).
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Page 42: Status Registers
HMM170 User Guide M212259EN-D Communication 1539 0602 Parity, data, stop bits enum 0 = None, 8, 1 1 = None, 8, 2 2 = Even, 8, 1 3 = Even, 8, 2 4 = Odd, 8, 1 5 = Odd, 8, 2 (default: 1 = None, 8, 2) 1540 0603... -
Page 43: Table 22 Error Codes In Register 0203
Appendix A – Modbus reference Register Address Register description Data Note number format 0207 RH measurement status 16-bit 0000 : Status OK signed 0001 : Measurement is not integer available 0208 T measurement status 16-bit 0002 : Measurement is not signed reliable integer... -
Page 44: Test Value Registers
"HMM170" MajorMinorVersion "1.2.3" Software version of the device. VendorUrl "http://www.vaisala.com/" ProductName "Vaisala HUMICAP(R) Humidity and Temperature Module HMM170" ModelName "7E2A2A0A000" Configuration code of the device. Length and content of the code are model- specific. UserApplicationName User definable information text (see... -
Page 45: Exception Responses
"2020-01-31" CalibrationDate Calibration date in YYYY-MM-DD format. Empty string if not set/valid. "Vaisala/HEL" CalibrationText Calibration information text. Empty string if not set/valid. Vaisala-specific device information. A.6 Exception responses Table 25 Modbus exception responses Code Name Reason ILLEGAL FUNCTION Unsupported function code ILLEGAL DATA ADDRESS Register address or Object ID out of valid ranges... -
Page 46: Modbus Communication Examples
HMM170 User Guide M212259EN-D A.7 Modbus communication examples Reading relative humidity value Device address used in the following examples is 240 (F0 Measurement values returned by the device change depending on ambient conditions and/or device settings. Your device might not return exactly the same values. - Page 47 Appendix A – Modbus reference Writing pressure compensation value Request Response Bytes on the line Description Bytes on the line Description (silence for 3.5 bytes) Start of Modbus RTU (silence for 3.5 bytes) Start of Modbus RTU frame frame Device address Device address Function (Write Function (Write...
- Page 48 HMM170 User Guide M212259EN-D Communication description Value to write 44756E14 = 981.72 (hPa)
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Page 49: Appendix B: Fcc Part 15 Compliance Statement
Appendix B – FCC Part 15 compliance statement Appendix B. FCC Part 15 compliance statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. -
Page 50: Maintenance And Calibration Services
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 www.vaisala.com/ calibration. • Vaisala Online Store at store.vaisala.com is available for most countries. - Page 51 www. v aisala.com...
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