Vaisala HUMICAP HMW92 User manual

USER'S GUIDE
Vaisala HUMICAP® Humidity and
Temperature Transmitters
HMW90 Series
M211399EN-G

PUBLISHED BY
Vaisala Oyj Phone (int.): [phone]
P.O. Box 26 Fax: [phone]
FI-00421 Helsinki
Finland
Visit our Internet pages at www.vaisala.com.
© Vaisala 2015
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. Translated manuals and translated portions
of multilingual documents are based on the original English versions. In ambiguous
cases, the English versions are applicable, not the translations.
The contents of this manual are subject to change without prior notice.
This manual does not create any legally binding obligations for Vaisala towards
customers or end users. All legally binding obligations and agreements are included
exclusively in the applicable supply contract or the General Conditions of Sale and
General Conditions of Service of Vaisala.

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Table of Contents
CHAPTER 1
GENERAL INFORMATION ............................................................................ 7
About This Manual ................................................................... 7
Contents of This Manual ....................................................... 7
Version Information ............................................................... 8
Related Manuals ................................................................... 8
Documentation Conventions ................................................. 8
Safety......................................................................................... 9
ESD Protection...................................................................... 9
Recycling .................................................................................. 9
Regulatory Compliances ....................................................... 10
Trademarks ............................................................................. 10
Software License.................................................................... 10
Warranty.................................................................................. 10
CHAPTER 2
PRODUCT OVERVIEW................................................................................ 11
Introduction to HMW90 Series .............................................. 11
HMW90 Series Transmitters.................................................. 12
Output Parameters Explained............................................... 13
Transmitter Parts.................................................................... 14
Decorative Cover Option ....................................................... 18
CHAPTER 3
INSTALLATION............................................................................................ 19
Configuration Before Installation ......................................... 19
Configuration of Analog Output Models .............................. 19
DIP Switches of Analog Output Models ......................... 20
Relay Configuration in DIP Mode................................... 21
Changing Between DIP and Custom Configuration....... 23
Configuration of Digital Output Models ............................... 23
DIP Switches of Digital Output Models .......................... 24
Addressing with BACnet Protocol .................................. 25
Addressing with Modbus Protocol.................................. 25
Selecting Location ................................................................. 26
Installing the Mounting Base ................................................ 27
Wiring ...................................................................................... 27
Wiring HMW92 .................................................................... 29
Wiring HMW93 .................................................................... 30
Wiring TMW92..................................................................... 31
Wiring TMW93..................................................................... 31
Wiring HMW95 .................................................................... 32
Connecting Several Transmitters on Same RS-485
Line (HMW95) ................................................................ 32

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Connecting a Common AC Power Supply to Several
Transmitters.........................................................................33
CHAPTER 4
OPERATION .................................................................................................34
Display .....................................................................................34
Startup Screens...................................................................34
Measurement Screen ..........................................................35
Indicators on the Display .....................................................36
Service Port.............................................................................36
Connecting With an MI70 Indicator .....................................36
Connecting With a Computer ..............................................37
Installing the Driver for the USB Service Cable .............37
Terminal Application Settings.........................................38
List of Serial Commands .......................................................40
Transmitter Information .........................................................41
Show Transmitter Information .............................................41
Show Transmitter Firmware Version ...................................41
Show Transmitter Serial Number ........................................41
Show Transmitter Status .....................................................42
Show Measured Parameters...............................................44
Show Command Help..........................................................44
Show Command List ...........................................................45
Measurement Settings ...........................................................45
Set Environmental Parameters ...........................................45
Select Units .........................................................................46
Analog Output Settings .........................................................46
Set Analog Output Mode .....................................................46
Set Analog Output Scaling ..................................................47
Set Output Clipping and Error Limit.....................................48
Display Settings......................................................................49
Select Parameters to Display ..............................................49
Serial Line Output Commands ..............................................50
Start Measurement Output ..................................................50
Stop Measurement Output ..................................................50
Output a Reading Once.......................................................51
Set Output Interval...............................................................51
Set Output Format ...............................................................52
Serial Line Settings ................................................................53
Set Remote Echo ................................................................53
Set Serial Line Turnaround Delay .......................................54
Relay Configuration in Custom Mode ..................................54
Set Relay Mode ...................................................................54
Set Relay Parameter and Limits..........................................55
Relay Configuration Examples ............................................56
Calibration and Adjustment Commands ..............................57
Adjust Humidity Measurement ............................................57
Show Current RH Adjustment ........................................57
1-point Adjustment of RH Measurement ........................58
2-point Adjustment of RH Measurement ........................58
Clear User Adjustment of RH Measurement..................59
Adjust Temperature Measurement......................................59
Show Current T Adjustment ...........................................59
1-point Adjustment of T Measurement ...........................59

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Clear User Adjustment of T Measurement .................... 60
Enter Calibration and Adjustment Information .................... 60
Testing Commands ................................................................ 61
Test Analog Outputs ........................................................... 61
Test Relay Operation .......................................................... 62
Other Commands ................................................................... 62
Enable Advanced Serial Commands .................................. 62
Reset Transmitter................................................................ 62
Set BACnet Parameters...................................................... 63
CHAPTER 5
MAINTENANCE ........................................................................................... 65
Periodic Maintenance ............................................................ 65
Cleaning .............................................................................. 65
Calibration and Adjustment ................................................. 65
Adjustment Using Display and Trimmers....................... 66
Adjustment Using an HM70 ........................................... 67
Adjustment Using a Computer ....................................... 68
Repair Maintenance ............................................................... 69
Replacing the Measurement Module .................................. 69
CHAPTER 6
TROUBLESHOOTING ................................................................................. 71
Problem Situations................................................................. 71
Error Messages ...................................................................... 72
Viewing Error Messages on Serial Line .............................. 73
View Currently Active Errors .......................................... 73
View Error Table ............................................................ 73
Error State............................................................................... 74
Reverting to Factory Settings ............................................... 75
Reverting to Factory Settings Using DIP Switches ............. 75
Reverting to Factory Settings Using Service Port............... 77
Technical Support .................................................................. 77
CHAPTER 7
TECHNICAL DATA ...................................................................................... 78
Specifications ......................................................................... 78
Spare Parts and Accessories................................................ 80
Dimensions in mm ................................................................. 81
APPENDIX A
BACNET REFERENCE................................................................................ 82
BACnet Protocol Implementation Conformance
Statement ................................................................................ 82
Device Object.......................................................................... 85
Relative Humidity Object ....................................................... 87
Calculated Humidity Objects ................................................ 88
Temperature Object ............................................................... 90
Operation Pressure Object.................................................. 91
Operation Altitude Object...................................................... 92

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BIBBs Supported ....................................................................93
Application Services Supported ...........................................94
APPENDIX B
MODBUS REFERENCE ...............................................................................95

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List of Figures
Figure 1 HMW90 Series Transmitters .................................................... 11
Figure 2 Transmitter Parts - Outside ...................................................... 14
Figure 3 Opening the Transmitter........................................................... 15
Figure 4 Transmitter Parts – Inside (Analog Output Models)................. 16
Figure 5 Transmitter Parts – Inside (Digital Output Models) .................. 17
Figure 6 Decorative Cover...................................................................... 18
Figure 7 DIP Switch Settings of Analog Output Models ......................... 20
Figure 8 Relay High in DIP Mode (HMW93) .......................................... 22
Figure 9 Relay Low in DIP Mode (HMW93) ........................................... 22
Figure 10 DIP Switch Settings of Digital Output Models .......................... 24
Figure 11 Example of Transmitter Addressing ......................................... 25
Figure 12 Selecting Transmitter Location................................................. 26
Figure 13 Installing the Mounting Base .................................................... 27
Figure 14 Wiring from Behind (Recommended)....................................... 28
Figure 15 Wiring from Above.................................................................... 28
Figure 16 Wiring HMW92 ......................................................................... 29
Figure 17 Three-Wire Wiring for HMW92................................................. 29
Figure 18 Wiring HMW93 ......................................................................... 30
Figure 19 Three-Wire Wiring for HMW93................................................. 30
Figure 20 Wiring TMW92.......................................................................... 31
Figure 21 Wiring TMW93.......................................................................... 31
Figure 22 Three-Wire Wiring for TMW93 ................................................. 31
Figure 23 Wiring HMW95 ......................................................................... 32
Figure 24 Several Transmitters on Same RS-485 Line............................ 32
Figure 25 Connecting a Common AC Power Supply ............................... 33
Figure 26 HMW93 Startup Screens.......................................................... 34
Figure 27 HMW93 Measurement Screen – Normal Operation ................ 35
Figure 28 HMW93 Measurement Screen – Problem With Measurement 35
Figure 29 PuTTY Terminal Application..................................................... 39
Figure 30 Relay Hi_Active in Custom Mode (HMW93) ............................ 56
Figure 31 Relay Lo_active in Custom Mode (HMW93)............................ 56
Figure 32 Trimmer Centering Screen ....................................................... 66
Figure 33 Trimmer Centering Screen ....................................................... 67
Figure 34 HTM10 and TM10 Modules...................................................... 69
Figure 35 Replacing the HTM10 Module (HMW93) ................................. 70
Figure 36 DIP Switches in Factory Reset Position................................... 75
Figure 37 DIP Switches in Factory Reset Position (HMW95) .................. 76
Figure 38 HMW90 Series Dimensions ..................................................... 81
Figure 39 Dimensions of the Mounting Base ........................................... 81

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List of Tables
Table 1 Manual Revisions .......................................................................8
Table 2 Related Manuals.........................................................................8
Table 3 HMW90 Series Transmitters ....................................................12
Table 4 Parameters Supported by HMW90 Series ...............................13
Table 5 Rotary Switch and Relay Setpoint ............................................21
Table 6 Serial Interface Settings ...........................................................38
Table 7 Basic Serial Commands ...........................................................40
Table 8 Advanced Serial Commands ....................................................40
Table 9 FORM Command Parameters..................................................53
Table 10 FORM Command Modifiers......................................................53
Table 11 Troubleshooting Table ..............................................................71
Table 12 Error Messages ........................................................................72
Table 13 Performance .............................................................................78
Table 14 Operating Environment.............................................................78
Table 15 Inputs and Outputs ...................................................................79
Table 16 Mechanics.................................................................................80
Table 17 HMW90 Series Spare Parts and Accessories..........................80
Table 18 Device Object Properties..........................................................85
Table 19 Relative Humidity Object Properties.........................................87
Table 20 Status Flags..............................................................................87
Table 21 Reliability ..................................................................................87
Table 22 Event State ...............................................................................87
Table 23 Calculated Humidity Objects ....................................................88
Table 24 Calculated Humidity Object Properties.....................................88
Table 25 Status Flags..............................................................................88
Table 26 Reliability ..................................................................................89
Table 27 Event State ...............................................................................89
Table 28 Temperature Object Properties ................................................90
Table 29 Status Flags..............................................................................90
Table 30 Reliability ..................................................................................90
Table 31 Event State ...............................................................................90
Table 32 Operation Pressure Object Properties .....................................91
Table 33 Status Flags..............................................................................91
Table 34 Operation Altitude Object Parameters......................................92
Table 35 Status Flags..............................................................................92
Table 36 BACnet Smart Sensor BIBBs Support......................................93
Table 37 BACnet Standard Application Services Support ......................94
Table 38 Modbus Functions Supported by HMW90................................95
Table 39 HMW90 Modbus Measurement Data Registers.......................95
Table 40 HMW90 Modbus Status Registers (Read-only) .......................96
Table 41 HMW90 Modbus Error Code Bits .............................................96
Table 42 HMW90 Modbus Configuration Parameter Registers ..............96
Table 43 HMW90 Modbus Device Identification......................................97
Table 44 HMW90 Modbus Exception Responses ...................................97

Chapter 1 _________________________________________________________ General Information
VAISALA_________________________________________________________________________ 7
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.
Contents of This Manual
This manual consists of the following chapters:
- Chapter 1, General Information, provides general notes for the manual
and HMW90 series transmitters.
- Chapter 2, Product Overview, introduces the features, advantages, and
the product nomenclature.
- Chapter 3, Installation, provides you with information that is intended
to help you install the HMW90 series transmitters.
- Chapter 4, Operation, contains information that is needed to operate
the HMW90 series transmitters.
- Chapter 5, Maintenance, provides information that is needed in basic
maintenance of the HMW90 series.
- Chapter 6, Troubleshooting, describes common problems, their
probable causes and remedies, and provides contact information for
technical support.
- Chapter 7, Technical Data, provides the technical data of the HMW90
series transmitters.
- Appendix A, BACnet Reference,describes the BACnet protocol
implementation of the HMW90 series digital transmitters.
- Appendix B, Modbus Reference, describes the Modbus protocol
implementation of the HMW90 series digital transmitters.

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Version Information
Table 1 Manual Revisions
Manual Code
Description
M211399EN-G
March 2015. This manual. Added description of the
Decorative Cover accessory. Updated description
of BACnet and Modbus protocol implementations.
Various small updates.
M211399EN-F
February 2013. Previous version. Updated
description of DIP switch settings for the digital
output models. Updated description of UNIT
command.
M211399EN-E
February 2013. Updated description of BACnet
protocol implementation.
M211399EN-D
January 2013. Added HMW95 model. Added
description of BACnet and Modbus protocol
implementations. Updated configuration and wiring
instructions.
Related Manuals
Table 2 Related Manuals
Manual Code
Manual Name
M211511EN
HMW90 and GMW90 Series Quick Guide for
Digital Output models
M211398EN
HMW90 and GMW90 Series Quick Guide for
Analog Output models
M211476EN
Decorative Cover Quick Guide
M211606EN
Decorative Cover Printable Insert
Documentation Conventions
Throughout the manual, important safety considerations are highlighted
as follows:
WARNING Warning alerts you to a serious hazard. If you do not read and follow
instructions very carefully at this point, there is a risk of injury or even
death.
CAUTION Caution warns you of a potential hazard. If you do not read and follow
instructions carefully at this point, the product could be damaged or
important data could be lost.
NOTE Note highlights important information on using the product.