Vaisala HMW93, TMW92, HMW92D, HMW93D, TMW93 User Manual

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USER'S GUIDE

Vaisala HUMICAP® Humidity and

Temperature Transmitters

HMW90 Series

M211399EN-G

PUBLISHED BY

Vaisala Oyj Phone (int.): +358 9 8949 1 P.O. Box 26 Fax: +358 9 8949 2227 FI-00421 Helsinki Finland

Visit our Internet pages at www.vaisala.com.

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.

_________________________________________________________________________________

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

VAISALA _________________________________________________________________________ 1

User's Guide _______________________________________________________________________

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

2 ____________________________________________________________________ M211399EN-G

_________________________________________________________________________________

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

VAISALA _________________________________________________________________________ 3

User's Guide _______________________________________________________________________

BIBBs Supported .................................................................... 93

Application Services Supported ........................................... 94

APPENDIX B

MODBUS REFERENCE ............................................................................... 95

4 ____________________________________________________________________ M211399EN-G

_________________________________________________________________________________

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

VAISALA _________________________________________________________________________ 5

User's Guide _______________________________________________________________________

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

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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.

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.

VAISALA _________________________________________________________________________ 7

User's Guide _______________________________________________________________________

Manual Code

Description

M211399EN-G

March 2015. This manual. Added description of the

Various small updates.

M211399EN-F

February 2013. Previous version. Updated

command.

M211399EN-E

February 2013. Updated description of BACnet protocol implementation.

M211399EN-D

January 2013. Added HMW95 model. Added

instructions.

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

Version Information

Table 1 Manual Revisions

Decorative Cover accessory. Updated description of BACnet and Modbus protocol implementations.

description of DIP switch settings for the digital output models. Updated description of UNIT

description of BACnet and Modbus protocol implementations. Updated configuration and wiring

Related Manuals

WARNING

CAUTION

Table 2 Related Manuals

Documentation Conventions

Throughout the manual, important safety considerations are highlighted as follows:

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 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.

8 ____________________________________________________________________ M211399EN-G

Chapter 1 _________________________________________________________ General Information

Connect only de

Do not modify the unit. Improper modification can damage the product or lead to malfunction.

Recycle all applicable material.

Dispose of the unit acco Do not dispose of with regular household refuse.

Safety

The HMW90 series transmitter delivered to you has been tested and approved as shipped from the factory. Note the following precautions:

WARNING

CAUTION

-energized wires.

ESD Protection

Electrostatic Discharge (ESD) can cause immediate or latent damage to electronic circuits. Vaisala products are adequately protected against ESD for their intended use. It is possible to damage the product, however, by delivering electrostatic discharges when touching, removing, or inserting any objects inside the equipment housing.

To make sure you are not delivering high static voltages yourself:

- Handle ESD sensitive components on a properly grounded and protected ESD workbench.

- Always hold component boards by the edges and avoid touching the component contacts.

Recycling

rding to statutory regulations.

VAISALA _________________________________________________________________________ 9

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.

- EN 550022: Information technology equipment – Radio disturbance characteristics – Limits and methods of measurement.

Trademarks

HUMICAP® is a registered trademark of Vaisala Oyj.

Windows® is a registered trademark of Microsoft Corporation in the United States and/or other countries.

Software License

This product contains software developed by Vaisala. Use of the software is governed by license terms and conditions included in the applicable supply contract or, in the absence of separate license terms and conditions, by the General License Conditions of Vaisala Group.

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.

10 ___________________________________________________________________ M211399EN-G

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).

- Sliding cover for accessing maintenance functions.

- Adjustment trimmers.

- DIP switches for most common configuration tasks.

- RS-485 line for temporary service use with hand-held MI70 indicator or computer.

- User exchangeable measurement module available as a spare part.

Figure 1 HMW90 Series Transmitters

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User's Guide _______________________________________________________________________

Product Code

Short Description

HMW92

Humidity and temperature transmitter with

- display hidden under sliding cover

HMW92D

Humidity and temperature transmitter with

- visible display

HMW93

Humidity and temperature transmitter with

- display hidden under sliding cover

HMW93D

Humidity and temperature transmitter with

- visible display

TMW92

Temperature transmitter with

- display hidden under sliding cover

TMW93

Temperature transmitter with

- display hidden under sliding cover

HMW95

Humidity and temperature transmitter with

- display hidden under sliding cover

HMW95D

Humidity and temperature transmitter with

- visible display

HMW90

HMW90 series wall-mount transmitter that has been

custom) to retain the custom configuration.

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 78.

Table 3 HMW90 Series Transmitters

- two current outputs (4 ... 20 mA)

- two voltage outputs (0 ... 5 V or 0 ... 10 V)

- relay

- two voltage outputs (0 ... 5 V or 0 ... 10 V)

- relay

TMW90

- one current output (4 ... 20 mA)

- one voltage output (0 ... 5 V or 0 ... 10 V)

- relay

- digital output (isolated RS-485)

- BACnet MS/TP or Modbus protocol (DIP switch setting)

- digital output (isolated RS-485)

- BACnet MS/TP or Modbus protocol (DIP switch setting)

customized at Vaisala. Check type label on transmitter body and terminal label on the mounting base.

Note for customized transmitters with analog outputs: Keep the transmitter in custom mode (DIP switch 8 set to

12 ___________________________________________________________________ M211399EN-G

Chapter 2 ___________________________________________________________ Product Overview

Parameter

Symbol

Unit(s)

Description

Temperature

°C °F

Temperature in Celsius or Fahrenheit scale.

Relative

RH % Ratio of the partial pressure of

at the current temperature.

Dewpoint

°C

Temperature at which the water

water at the current pressure.

Dewpoint

Tdf

°C

Same as Td, except when the

instead of dewpoint.

Dewpoint depression

dTd

°C °F

Difference between ambient temperature and dewpoint (Tdf).

Wet bulb

°C

The minimum temperature that

cooling in the current conditions.

Absolute humidity

g/m3 gr/ft3

Quantity of water in a cubic meter (or cubic foot) of air.

Mixing ratio

g/kg gr/lb

Ratio of water vapor mass per kilogram (or pound) of dry air.

Enthalpy

kJ/kg btu/lb

Sum of the internal energy of a thermodynamic system.

Humidity TMW90 the service port (serial line and MI70 indic

Output Parameters Explained

Table 4 Parameters Supported by HMW90 Series

NOTE

humidity

temperature

transmitters even though the parameters can be selected using

water vapor in the air to the saturation vapor pressure of air

°F

vapor in the air will condense into

dewpoint is below 0 °C, the transmitter outputs frostpoint (Tf)

can be reached by evaporative

parameters are not measured by TMW92, TMW93, and

ator use).

VAISALA ________________________________________________________________________ 13

User's Guide _______________________________________________________________________

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.

6 = Display

7 = Type label

8 = Grip for slide

Transmitter Parts

1201-004

Figure 2 Transmitter Parts - Outside

14 ___________________________________________________________________ M211399EN-G

Chapter 2 ___________________________________________________________ Product Overview

where 1 = Push tab down with a screwdriver to open the transmitter.

When opening or closing the transmitter, avoid damaging the transmit electronics with the two plastic supports on the mounting base. Figure

CAUTION

1201-005

Figure 3 Opening the Transmitter

To open, use a screwdriver to push down the tab that holds the transmitter cover and mounting base together. Pull the mounting base away from the cover, starting from the top.

To close, connect the bottom of the transmitter first, and tilt the top forward to close the tab. Do not push on the display. Closing the transmitter starts it up if power is supplied to the screw terminals.

See

4 on page 16 and Figure 5 on page 17.

ter

VAISALA ________________________________________________________________________ 15

User's Guide _______________________________________________________________________

where 1 = Mounting base

2 = Opening for cable (wiring from top)

3 = Terminal label

4 = Screw terminals

5 = Opening for cable (wiring from behind)

6 = Orientation arrow – should point up after the mounting base has been installed.

7 = Place for zip tie (for cable strain relief)

8 = Supports

9 = Transmitter body

10 = DIP switches for common configuration options; see section DIP Switches of Analog Output Models on page 20.

11 = Rotary switch for relay setpoint (only for models with relay); see section Relay Configuration in DIP Mode on page 21.

12 = HTM10 module with HUMICAP® sensor (HMW models) or TM10 module (TMW models, measures temperature only).

Non-Metric

0...5V Relay On

Relay High

Custom

Relay Set P oint

Metric

0...10V Relay O

Relay Low

DIP

1201-006

Figure 4 Transmitter Parts – Inside (Analog Output Models)

16 ___________________________________________________________________ M211399EN-G

Chapter 2 ___________________________________________________________ Product Overview

where 1 = Mounting base

2 = Opening for cable (wiring from top)

3 = Terminal label

4 = Screw terminals.

5 = Opening for cable (wiring from behind)

6 = Label for RS-485 baud rate DIP switch settings

7 = Orientation arrow – should point up after the mounting base has been installed

8 = Place for zip tie (for cable strain relief)

9 = Supports

10 = Transmitter body

11 = DIP switches for common configuration options; see section DIP Switches of Digital Output Models on page 24

RS-485 termination jumper (connects a 120 Ω resistor)

13 = DIP switches for transmitter address selection

14 = HTM10 module

15 = HUMICAP® sensor

1209-013

Figure 5 Transmitter Parts – Inside (Digital Output Models)

VAISALA ________________________________________________________________________ 17

User's Guide _______________________________________________________________________

1 = Decorative cover lid. If you intend to paint the cover, paint the outer surface of this part, and leave the other part entirely unpainted.

2 = Space for wallpaper or printed insert. The decorative cover is delivered with a quick guide that can be used as a stencil for cutting the required shape.

3 = Decorative cover base part.

Decorative Cover Option

The decorative cover is an installation accessory for HMW90 and GMW90 series transmitters that can be used to hide the transmitter from view. The cover material is transparent polycarbonate, but the idea is to customize it to match the wall the transmitter is on. There are two easy ways to change the cover’s appearance:

- Paint the cover to the same color as the wall.

- Insert a piece of wallpaper under the lid.

You can also use the cover as a holder for printed material, for example an informational sign.

You must remove the sliding cover of the transmitter to install the decorative cover. Installation instructions are included with the cover.

Figure 6 Decorative Cover

18 ___________________________________________________________________ M211399EN-G

1310-042

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).

Configuration of Analog Output Models

You can configure analog output models of HMW90 series transmitters in two ways:

- Using the DIP switches (and rotary switch on the HMW93 and TMW93) on the component board. See the following sections for instuctions:

- DIP Switches of Analog Output Models on page 20

- Relay Configuration in DIP Mode on page 21

- Configuring the settings in software through the service port. See connection instructions and serial line commands in Chapter 4, Operation, on page 34.

These two configuration methods are mutually exclusive. If the DIP switch configuration is used, software settings have no effect on settings that are controlled by the DIP switches. DIP switch number 8 is the master switch that controls which configuration method is used.

VAISALA ________________________________________________________________________ 19

User's Guide _______________________________________________________________________

DIP

Position

Setting

1 Non-metric

Non-metric units (°F).

Metric

Metric units (°C).

Td (dewpoint) as humidity parameter on display and

to -20 ... +55 °C.

RH (relative humidity) as humidity parameter on display

0 ... 100 %RH.

0...5V

0...5V analog output (both channels).

0...10V

0...10V analog output (both channels).

4 Relay On

Relay enabled.

Relay Off

Relay disabled.

5 Relay High

Relay closed when measurement above setpoint.

TMW93.

Relay Low

Relay closed when measurement below setpoint.

Not used

7 Not used

8 Custom

Configuration through service port only.

DIP

Configuration by DIP switches only.

Non-Metric

0...5V

Relay On

Relay High

Custom

Metric

0...10V Relay Off

Relay Low

DIP

2 3 4

5 6

Non-Metric

Custom

Metric

DIP

2 3 4

5 6

W92/TMW92 HMW93/TMW93

DIP Switches of Analog Output Models

Figure 7 DIP Switch Settings of Analog Output Models

analog output. Sets analog output scaling

and analog output. Sets analog output scaling to

Relay operation is linked to RH on HMW93, and T on

1111-066

NOTE

DIP switch 2 does nothing on TMW92 and TMW93.

NOTE

If DIP switch 8 is set to Custom, the transmitter ignores all other DIP switch settings. In custom mode the transmitter uses settings that are configured in software using the service port. Before changing the position of this switch, see section Changing Between DIP and Custom Configuration on page 23.

20 ___________________________________________________________________ M211399EN-G

Chapter 3 ________________________________________________________________ Installation

Relay is included on HMW93

Rotary Switch Position

Setpoint on HMW93

Setpoint on TMW93

5 %RH

0 °C (32 °F)

10 %RH

5 °C (41 °F)

20 %RH

10 °C (50 °F)

30 %RH

15 °C (59 °F)

40 %RH

20 °C (68 °F)

50 %RH

25 °C (77 °F)

60 %RH

30 °C (86 °F)

70 %RH

35 °C (95 °F)

80 %RH

40 °C (104 °F)

90 %RH

45 °C (113 °F)

The rotary switch only has 10 positions. Do not turn the switch so that it is between two positions.

Relay Configuration in DIP Mode

NOTE

and TMW93 transmitters only.

When the transmitter is configured using DIP switches, the functioning of the relay is configured by DIP switch 5 and the rotary switch on the component board:

- DIP switch 5 determines if the relay is closed above or below the setpoint.

- The position of the rotary switch determines the setpoint according to the table below.

Table 5 Rotary Switch and Relay Setpoint

NOTE

For examples of relay behavior in DIP mode, see Figure 8 and Figure 9 on page 22. 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.

If you need to configure the relay for some other parameter or need additional configuration options, see section Relay Configuration in Custom Mode on page 54.

VAISALA ________________________________________________________________________ 21

User's Guide _______________________________________________________________________

100

Relative Humidity (%)

Time

Rotary switch set to 6 (60 %RH) DIP 5 set to “Relay High”

Relay closed

Relay open

100

Relative Humidity (%)

Relay closed

Relay open

Rotary switch set to 6 (60 %RH) DIP 5 set to “Relay Low”

1111-117

Figure 8 Relay High in DIP Mode (HMW93)

NOTE

22 ___________________________________________________________________ M211399EN-G

1111-118

Figure 9 Relay Low in DIP Mode (HMW93)

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.

Chapter 3 ________________________________________________________________ Installation

Changing Between DIP and Custom Configuration

If you change the position of DIP switch 8, note the following:

When changing from DIP to Custom: The DIP settings that were used when the power was last on are carried over to the custom settings at next power up.

When changing from Custom to DIP: Current custom settings are overwritten by the settings from the DIP switches at next power up. Display layout and analog outputs are set to default settings:

- Channel 1 output parameter T, scaling -5 ... +55 °C.

- Channel 2 output parameter RH, scaling 0 ... 100 %RH (if humidity measurement is present on the transmitter).

If you have a factory customized transmitter, this may lead to a situation where the wiring label on the mounting base does not reflect the outputs of the transmitter. To return the transmitter to its factory customized settings, follow the instructions in section Reverting to Factory Settings on page 75.

Configuration of Digital Output Models

Digital output models of the HMW90 series have the following configuration interfaces:

- DIP switches on the component board control operating protocol, serial line settings, and transmitter MAC address. For instructions, see DIP Switches of Digital Output Models on page 24.

- You can set a jumper for RS-485 line termination on the component board (120 Ω resistor). For location of the jumper, see Figure 5 on page 17.

- Other settings are configured in software. You can change most configuration settings through the service port. For connection instructions and serial line commands, see Chapter 4, Operation, on page 34.

- Some configuration actions can be done using the BACnet and Modbus protocols. See the following appendices for protocol implementation details:

- Appendix A, BACnet Reference, on page 82.

- Appendix B, Modbus Reference, on page 95.

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User's Guide _______________________________________________________________________

DIP

Position

Setting

1 Modbus

Modbus protocol in use.

BACnet

BACnet protocol in use.

2 ... 4

A B C

Serial line baud rate.

Off

Automatic (default).

Off

4800 (not available with BACnet protocol)

Off

9600

Off

19200

Off

38400

Off

57600

Off

76800

115200

Parity Even

Selects 8 data bits, parity even, one stop bit (8E1) for Modbus protocol.

Parity None

Selects 8 data bits, parity none, and two stop bits (8N2) for Modbus protocol.

Non-Metric

Uses non-metric units on display and service port. No effect on Modbus and BACnet.

Metric

Uses metric units on display and service port. No effect on Modbus and BACnet.

Not used

2 3 4

5 6

Modbus

BACnet

Parity Even

A B C

Parity None

Baud Rate

2 3 4

5 6

HMW95

128 64 32 16 8 4 2 1

Address

(Binary Weighting)

Metric

Non-Metric

DIP Switches of Digital Output Models

Figure 10 DIP Switch Settings of Digital Output Models

1209-016

NOTE

If the serial line baud rate is set to Automatic, the transmitter attempts to determine the baud rate of the traffic in the RS-485 network. The transmitter cycles through all baud rate choices, listening for 10 seconds at each rate. When it detects valid RS-485 traffic, it remains at the detected baud rate until it is reset or power cycled.

NOTE

24 ___________________________________________________________________ M211399EN-G

The parity setting is only relevant for Modbus protocol, in which it chooses between 8N2 (parity none) and 8E1 (parity even) formats.

Chapter 3 ________________________________________________________________ Installation

2 3 4

5 6

128 64 32 16 8 4 2 1

Binary: 10100001 Decimal: 161 (128 + 32 + 1)

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. For example:

1209-009

Figure 11 Example of Transmitter Addressing

Addressing with BACnet Protocol

BACnet MS/TP MAC address range is 0 … 255. The transmitter is a BACnet MS/TP master if address is below 128. Otherwise the transmitter is a slave.

Addressing with Modbus Protocol

Transmitter is always a Modbus slave. MAC Address range for Modbus slaves is 1 … 247.

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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.

NOTE

1111-070

Figure 12 Selecting Transmitter Location

Use the mounting holes to attach the mounting base securely. Use at least two screws (not included, max screw diameter 4 mm). Remember to leave sufficient clearance below the transmitter to operate the slide. For mounting dimensions, see section Dimensions in mm on page 81.

When bringing a cable through the wall, note that the hole may also supply air from outside the room into the transmitter. This may affect the measurement readings. Seal the cable opening if necessary.

26 ___________________________________________________________________ M211399EN-G

Chapter 3 ________________________________________________________________ Installation

Connect only de

Installing the Mounting Base

Use the mounting holes to attach the mounting base securely. Use at least two screws (not included). The arrow on the mounting base must point straight up after installation. Proper orientation is important: air must flow through the vents on the bottom and top.

Wiring

WARNING

1310-043

Figure 13 Installing the Mounting Base

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). You can bring the cable to the housing from above or from behind (recommended).

After completing the wiring, connect the transmitter body over the mounting base. Note that mounting bases are model-specific.

-energized wires.

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User's Guide _______________________________________________________________________

1310-044

Figure 14 Wiring from Behind (Recommended)

1310-045

Figure 15 Wiring from Above

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Chapter 3 ________________________________________________________________ Installation

-T -RH+T +RH

Power supply 10 ... 28 VDC RL= 0 ... 600 Ω

-T -RH+T +RH

Power supply 10 ... 28 VDC

RL= 0 ... 600 Ω

Wiring HMW92

You must connect the RH channel of the HMW92, even if you only want to measure temperature. Connecting the T channel is optional.

1111-067

Figure 16 Wiring HMW92

If you want to use a single power supply for the HMW92, you must connect the positive terminals (+T and +RH) together.

VAISALA ________________________________________________________________________ 29

Figure 17 Three-Wire Wiring for HMW92

1211-007

User's Guide _______________________________________________________________________

-T -Vs+T +Vs

Power supply 18 ... 35 VDC or 24 VAC ±20%

-RH +RH

Relay

max. 50 VDC

500 mA

= 10 kΩ min.

-T -Vs+T +Vs

Power supply 18 ... 35 VDC or 24 VAC ±20%

-RH +RH

Relay

= 10 kΩ min.

Wiring HMW93

Recommended wiring for long cables:

1111-068

Figure 18 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).

1111-069

Figure 19 Three-Wire Wiring for HMW93

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Chapter 3 ________________________________________________________________ Installation

-T +

. 2

RL=

0 .

. 6

Ω

-T -Vs+T +Vs

Power supply 18 ... 35 VDC or 24 VAC

±20%

Relay

max. 50 VDC

500 mA

RL=

10 kΩ min.

T -V

s+T +

Powe

r su

ppl

18 .

.. 3

5 VD

or 2

4 VA

C ±20

ela

RL= 10

kΩ m

in.

Wiring TMW92

1202-117

Figure 20 Wiring TMW92

Wiring TMW93

Recommended wiring for long cables:

1202-118

Figure 21 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).

1202-119

Figure 22 Three-Wire Wiring for TMW93

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User's Guide _______________________________________________________________________

D- -VsD+ +Vs

Power supply 18 ... 35 VDC or 24 VAC ±20%

RS-485

Shld GND

ans

mit

ter

D-

-Vs

D+

Shld

GND

Building control

ler Tran

smi

tter

Tra

nsm

itt

owe

upply

D-

D+

+Vs

-Vs

GND

IELD

RS-485:

Cnet or

DBU

mas

ter

onnect shield

on cont

roller side

Set

RS-485

ermination ju

mper

D-

-Vs

D+

+Vs

Shld

GND

D-

-V

D+

Shld

GND

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).

1209-014

Figure 23 Wiring HMW95

Connecting Several Transmitters on Same RS-485 Line (HMW95)

Set the RS-485 termination jumper to “ON” on the transmitter that is at the end of the line. This terminates the line with a 120 Ω resistor. For location of the jumper, see section Transmitter Parts - Inside on page 6.

Connect the cable shield to ground on the building controller side.

32 ___________________________________________________________________ M211399EN-G

Figure 24 Several Transmitters on Same RS-485 Line

1209-015

Chapter 3 ________________________________________________________________ Installation

+Vs OUT

-Vs

+Vs OUT

-Vs GND

Shared common line

HMW90

CONTROLLER

24 VAC

voltage

upp

voltage

Signal output

GND

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 25 below.

1112-026

Figure 25 Connecting a Common AC Power Supply

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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.

1111-073, 1111-074

Figure 26 HMW93 Startup Screens

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Chapter 4 _________________________________________________________________ Operation

Measurement Screen

Measurement screen shows the measured parameters and currently active indicators.

1111-071

Figure 27 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.

1111-072

Figure 28 HMW93 Measurement Screen – Problem With

Measurement

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Indicator

Position on Screen

Meaning

Top right

Communication arrows. Shown only on

transmitter is transmitting to the RS-485 line.

Top right

Is shown when relay contacts are open

Top right

Is shown when relay contacts are closed

Top left

Is shown when an MI70 Indicator is

Bottom left

Is shown if an error is active. The error

section Error Messages on page 72.

Indicators on the Display

Service Port

You can connect to the service port on the HMW90 series transmitters using a computer or an MI70 indicator. The MI70 indicator is the handheld display device that is included with, for example, the Vaisala HUMICAP® Hand-Held Humidity and Temperature Meter HM70.

CAUTION

The service port is not galvanically isolated from the rest of the transmitter electronics. Connect only equipment with a floating power supply (not grounded) to the service port. If you connect a device that is grounded to a different potential than the transmitter’s power supply, you will affect the accuracy of the transmitter’s analog outputs. You may even affect the transmitter’s functionality or cause damage to the transmitter.

models with digital output. Down arrow is shown when transmitter detects valid traffic on the RS-458 line. Up arrow is shown when

(HMW93 and TMW93 only).

(HMW 93 and TMW93 only).

connected to the service port.

message is written after the indicator. See

Connecting With an MI70 Indicator

When connecting using an MI70 indicator, use the connection cable for HM70 hand-held meter (Vaisala order code 219980). The following functionality is available when using the MI70:

- Standard MI70 functions such as viewing, logging, and graphs of measurement results.

- Calibration and adjustment fuctions for the transmitter. For more information, see section Adjustment Using an HM70 on page 67.

- Setting of the pressure compensation value for humidity measurement (Environment menu in the MI70).

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Chapter 4 _________________________________________________________________ Operation

Connecting With a Computer

Connecting with a computer allows you to configure and troubleshoot your transmitter using serial line commands. For a list of commands, see section List of Serial Commands on page 40.

When connecting using a computer, 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. Refer to section Installing the Driver for the USB Service Cable on page 37 for detailed instructions.

- For more information on using a terminal application, see section Terminal Application Settings on page 38.

Installing the Driver for the USB Service Cable

Before taking the USB service cable into use, you must install the provided USB driver on your computer. When installing the driver, you must acknowledge any security prompts that may appear.

1. Check that the USB service cable is not connected. Disconnect the

cable if you have already connected it.

2. Insert the media that came with the cable, or download the latest

driver from www.vaisala.com.

3. Execute the USB driver installation program (setup.exe), and

accept the installation defaults. The installation of the driver may take several minutes.

4. After the driver has been installed, connect the USB service cable

to a USB port on your computer. Windows will detect the new device, and use the driver automatically.

5. The installation has reserved a COM port for the cable. Verify the

port number, and the status of the cable, using the Vaisala USB Instrument Finder program that has been installed in the Windows Start menu.

Windows will recognize each individual cable as a different device, and reserve a new COM port. Remember to use the correct port in the settings of your terminal program.

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Property

Description / Value

Baud rate

19200

Parity

None

Data bits

Stop bits

Flow control

None

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.

Table 6 Serial Interface Settings

The steps below describe how to connect to the transmitter using the PuTTY terminal application for Windows (available for download at

www.vaisala.com) and a USB serial interface cable:

1. Connect the USB serial interface cable between your computer and the service port of the transmitter.

2. Start the PuTTY application.

NOTE

3. Select the Serial settings category, and check that the correct COM port is selected in the Serial line to connect to field.

Note: You can check which port the USB cable is using with the Vaisala USB Instrument Finder program that has been installed in the Windows Start menu.

4. Check that the other serial settings are correct for your connection, and change if necessary. Flow control should be set to None unless you have a reason to change it.

5. Click the Open button to open the connection window and start using the serial line.

If PuTTY is unable to open the serial port you selected, it will show you an error message instead. If this happens, restart PuTTY and check the settings.

6. You may need to adjust the Local echo setting in the Terminal category to see what you are typing on the serial line. You must enable either local echo (on the terminal side) or remote echo (on the transmitter side, adjustable using the ECHO command).

To access the configuration screen while a session is running, click the right mouse button over the session window, and select Change Settings... from the pop-up menu.

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Chapter 4 _________________________________________________________________ Operation

0807-004

Figure 29 PuTTY Terminal Application

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Command

Description

Show transmitter information.

CALCS

Show all measured and calculated parameters.

ECHO

Show or set remote echo mode.

ENV

Show or set environmental parameters.

ERRT

Show error table.

ERRS

Show currently active errors.

FORM [modifier string]

Show or set output format.

HELP

Show list of currently available serial commands.

INTV [0 ... 9999 s/min/h]

Set continuous output interval for R command.

PASS [9000]

Access advanced serial commands.

Start the continuous outputting.

RESET

Reset the transmitter.

Stop the continuous outputting.

SDELAY [0 ... 255]

Show or set serial line turnaround delay in milliseconds.

SEND

Output measurement message once.

SNUM

Show transmitter serial number.

STATUS

Show transmitter status.

UNIT [m/n]

Select metric or non-metric units.

VERS

Show transmitter firmware version.

Command

Description

AMODE

Show or set analog output mode.

AOVER

Show or set analog output overrange and clipping behavior.

ASEL

Show or set analog output parameter.

ATEST

Test analog putput.

BACNET

Show or set BACnet parameters.

CDATE

Show or set calibration date.

CRH

Calibrate and adjust RH measurement.

Calibrate and adjust T measurement.

CTEXT

Show or set calibration information.

DSEL

Select parameters to display on screen.

FRESTORE

Restore transmitter to factory settings.

RMODE

Show or set relay operation mode.

RSEL

Show or set relay parameter and limits.

RTEST [open/closed]

Test relay 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 <cr> refers to pressing the carriage return (Enter) key on your computer keyboard. Enter a <cr> to clear the command buffer before starting to enter commands.

Table 7 Basic Serial Commands

Table 8 Advanced Serial Commands

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Transmitter Information

Show Transmitter Information

The ? command outputs a listing of device information.

?<cr>

Example:

Device : HMW93 SW version : 1.00.0.0000 SNUM : 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<cr>

Example:

>vers HMW93 / 1.00.0

Show Transmitter Serial Number

Use the SNUM command to show the transmitter serial number.

SNUM<cr>

Example:

>snum Serial number : G5130008

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User's Guide _______________________________________________________________________

where

Function

Optional switch to display a more detailed status for BACnet or Modbus protocol models with digital output). are -bacnet and –modbus.

Show Transmitter Status

Use the STATUS command to view detailed information on transmitter model and configuration.

STATUS [function]<cr>

(available on transmitter

Available switches

Example (display detailed BACnet status):

>status –bacnet * BACnet module (BACNET) * BACnet protocol : active MAC : 0 (00h) Device Instance : 6 (00000006h) Name : NOT_SET Location : Location Description : Description MAX_MASTER : 127 (7Fh) Node type : Master Baud setting : Auto Current baudrate : 19200 8N1 Baudrate locked : No Baud detection interval: 10 s DCC : Communication enabled Valid frames : 0 Invalid frames : 0 Unwanted frames : 0 Lost tokens : 0 Failed TX : 0

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Chapter 4 _________________________________________________________________ Operation

Example (display full status):

>status

Device Name : HMW92 Copyright : Copyright Vaisala Oyj 2012 SW Name : XM90 SW Model : XM9x SW version : 1.0.3.3728 Serial number : H1840005 Address : 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 ... 700.000 gr/lb Output range : 4.000 ... 20.000 mA Output clipping : 0.00 % (4.00 ... 20.00 mA) Valid output range : 5.00 % (3.20 ... 20.80 mA) Error value : 3.600 mA Input now : 17.301 gr/lb Output now : 4.395 mA State : Normal

* Analog output 2 (AOUT2) * Quantity : a Input range : 0.000 ... 10000.210 gr/ft3 Output range : 4.000 ... 20.000 mA Output clipping : 0.00 % (4.00 ... 20.00 mA) Valid output range : 5.00 % (3.20 ... 20.80 mA) Error value : 3.600 mA Input now : 1280.323 gr/ft3 Output now : 6.048 mA State : Normal

* Measurement module (HTM10) * Status : NORMAL Factory date : 20120425

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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.

CALCS<cr>

Example:

>calcs

RH - Relative Humidity T - Temperature Tdf - Dew/Frost point temperature Td - Dew point temperature Tw - Wetbulb temperature h - Enthalpy x - Mixing ratio a - Absolute humidity dTd - Dew/frostpoint depression

NOTE

Using this command on TMW92 and TMW93 transmitters will list all parameters, even though these transmitters only provide the temperature parameters.

Show Command Help

To see a short description of an individual command, issue the command with a question mark as a parameter.

Example:

>calcs ?

Display measured quantities

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Chapter 4 _________________________________________________________________ Operation

where pressure

Ambient pressure in hPa.

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.

HELP<cr>

Example (shows basic serial commands, advanced commands are not enabled here):

>help ?

CALCS ECHO ENV ERRT ERRS FORM HELP INTV PASS R RESET SDELAY SEND SNUM STATUS UNIT VERS

Measurement Settings

Set Environmental Parameters

Use the ENV command to set environmental parameters that affect the measurement. For HMW90 series transmitters you can set the ambient pressure value that is used for pressure compensation of calculated parameters.

ENV [pressure]<cr>

Example:

>env 1013.3 Pressure (hPa) : 1013.3

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where

x = Selects the unit type to output: m = metric units, for example, Celsius n = non-metric units, for example, Fahrenheit

where channel

Analog output channel, 1 or 2.

lo_value

Low limit of the channel.

hi_value

High limit of the channel.

error_value

Error value of the channel.

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).

UNIT [x]<cr>

Example:

>unit m

Unit : Metric

Analog Output Settings

NOTE

If you want to change analog output settings, you must set the transmitter’s configuration DIP switch 8 to position Custom. If the switch is set to DIP, the settings are view-only.

Commands for configuring analog outputs are not available on digital output models (for example, HMW95).

Set Analog Output Mode

Use the AMODE command to set the analog output mode and error level. Note that you cannot change between analog output types, for example, from voltage to current output.

AMODE [channel lo_value hi_value error_value]<cr>

Example (show current configuration):

>pass 9000 >amode

Aout 1 range ( V) : 0.00 ... 5.00 (error: 5.50)

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where channel

Analog output channel, 1 or 2.

parameter

Parameter that is output on the channel. Available

RH T Tdf Td Tw h x a dTd dew/frost point depression

lo_value

Low limit of the scaling, in the units of the selected parameter.

hi_value

High limit of the scaling in the units of the selected parameter.

Aout 2 range ( V) : 0.00 ... 5.00 (error: 5.50)

Example (set channel 1 to 0 ... 1 V output, with error level at 2 V):

>amode 1 0 1 2 Aout 1 range ( V) : 0.00 ... 1.00 (error: 2.00)

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]<cr>

parameters are:

relative humidity

temperature

dew/frost point temperature

dew point temperature

wetbulb temperature enthalpy mixing ratio absolute humidity

Example (set channel 1 to output dewpoint, in the range -10 ... 20 °C):

>pass 9000 >asel 1 TD -10 20 Aout 1 quantity : Td (-10.00 ... 20.00 'C)

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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. Range 0 ...

The error state is defined using the see section Set Analog Output Mode on page 46.

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%]<cr>

20, default is 5.

AMODE command,

NOTE

These settings have no effect on the measurements shown on the display. The display will always show the currently measured values, even outside the scaled output range, as long as the measurement is still functioning.

For example, first check the analog output settings using ASEL, AMODE, and AOVER commands:

>pass 9000 >asel

Aout 1 quantity : RH (0.00 ... 100.00 %) Aout 2 quantity : T (-5.00 ... 55.00 'C)

>amode Aout 1 range ( V) : 1.00 ... 5.00 (error: 6.00) Aout 2 range ( V) : 1.00 ... 5.00 (error: 6.00)

>aover Aout 1 clipping : 0.00 % Aout 1 error limit : 5.00 % Aout 2 clipping : 0.00 % Aout 2 error limit : 5.00 %

The parameter for channel 2 is T, with standard output range 1 ... 5 V and scaling -5 ... 55 °C. Error state is 6 V, which is set when the measured value is 5% outside the scaled output range.

Now give the following AOVER command:

>aover 2 10.0 20.0 Aout 2 clipping : 10.00 % Aout 2 error limit : 20.00 %

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where

Q1 = First parameter to show on the screen. Available parameters are:

out1 out2 RH T Tdf Td Tw h x a dTd dew/frost point depression

Q2 = Second parameter to show on the screen. Available parameters are the same as for Q1.

Q3 = Third parameter to show on the screen. Available parameters are the same as for Q1.

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. With the settings above, this will happen if the measured temperature is outside range -17 ... 67 °C.

- The output will never actually be between 5.4 and 6.0 V because of clipping.

Display Settings

Select Parameters to Display

Use the DSEL command to select the parameters that are displayed on the transmitter screen. You can select parameters by abbreviation, or select same parameters as are assigned to the analog outputs. If only one parameter is selected, it is shown vertically centered on the transmitter screen.

DSEL [Q1 Q2 Q3]<cr>

Same parameter as analog output channel 1 Same parameter as analog output channel 2

relative humidity

temperature

dew/frost point temperature

dew point temperature

wetbulb temperature

enthalpy mixing ratio absolute humidity

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Example (show currently displayed parameters):

>pass 9000 >dsel

Quant 1 : T Quant 2 : RH Quant 3 : 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 string to the serial line. The format of the measurement message is set with the FORM command.

R<cr>

Example (measurement message in default format):

RH = 21.71 %RH T = 23.13 'C RH = 21.72 %RH T = 23.12 'C RH = 21.77 %RH T = 23.12 'C RH = 21.77 %RH T = 23.12 'C ...

Outputting the results continues in intervals issued with the command INTV. You can stop the output with the S command. Since the interface is half-duplex, you must enter the commands when the transmitter is not outputting.

Stop Measurement Output

You can stop the measurement output with the S command:

S<cr>

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where n = time interval, range 0 ... 9999.

xxx

time unit = "S", "MIN", or "H"

Output a Reading Once

Use the SEND command to output a single measurement message.

SEND<cr>

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]<cr>

The shortest output interval (with n = 0) outputs the measurement messages as quickly as the transmitter produces them, without additional delay.

Example:

>intv 1 min

Output interval : 1 min

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where

modifier string

String of parameters and modifiers that defines the output format, length 1 ... 15 Maximum length may be shorter when text strings are used. See and examples below.

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]<cr>

0 characters.

Table 9 and Table 10 on page 53,

Command to set default format:

>form /

Example of default output:

RH = 5.17 %RH T = 24.33 'C RH = 5.17 %RH T = 24.33 'C RH = 5.18 %RH T = 24.33 'C RH = 5.18 %RH T = 24.33 'C ...

Command to set output format as Tdf and T with Modulus-256 checksum:

>form "Tdf =" U3 4.2 tdf " T =" U3 3.2 t CS2 \r \n

Output example:

Tdf = -15.72 'C T = 24.38 'C C9 Tdf = -15.71 'C T = 24.38 'C C8 Tdf = -15.71 'C T = 24.38 'C C8 Tdf = -15.69 'C T = 24.38 'C CF ...

Command to set output format as Tdf 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 "Tdf =" U3 3.2 tdf " T =" U3 3.2 t #003

Output example (ASCII codes not visible here):

Tdf =-15.14 'C T = 24.40 'CTdf =-15.14 'C T = 24.40 'CTdf =-15.14 'C T = 24.40 'CTdf =-15.14 'C T = 24.40 'CTdf =-

15.13 'C T = 24.40 'CTdf =-15.13 'C T = 24.40 'C ...

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Measured Parameter

Abbreviation in FORM Command

Relative humidity

Temperature

Dew/frost point temperature

Tdf

Dewpoint temperature

Wetbulb temperature

Enthalpy

Mixing ratio

Absolute humidity

Dew/frost point depression

dTd

Modifier

Description

x.y

Length modifier (number of digits and decimal places)

Tabulator

Carriage-return

Line feed

String constant, length 1 ... 15 characters

#xxx

ASCII code value (decimal) of a special character; for example, #027 for ESC

Shows the name of the measurement unit using “x” number

measurement unit with three characters

CS2

Modulus-256 checksum of message sent so far, ASCII encoded hexadecimal notation

CS4

Modulus-65536 checksum of message sent so far, ASCII encoded hexadecimal notation

CSX

NMEA xor-checksum of message sent so far, ASCII encoded hexadecimal notation

When entering modifiers, you can also use the backslash character “ instead of the hash “#”.

Table 9 FORM Command Parameters

Table 10 FORM Command Modifiers

of characters. For example, U3 shows the name of the

NOTE

Serial Line Settings

Set Remote Echo

Use the ECHO command to enable or disable remote echo by the transmitter.

ECHO [on/off]<cr>

\”

Example:

>echo on Echo : ON

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where

delay

Turnaround delay in milliseconds, range 1 … 1000. Default is 1.

where

mode

Activation mode of the relay. Options are:

None Lo_active Hi_active Fault Not_fault (relay closed when transmitter not in error state)

Set Serial Line Turnaround Delay

With the SDELAY command you can set the turnaround delay of the transmitter (time waited before replying to an incoming message) or view the currently set delay value.

SDELAY [delay]<cr>

Example:

>sdelay 5

COM1 transmit delay : 5

Relay Configuration in Custom Mode

NOTE

Relay is included on HMW93 transmitters only.

Additional configuration options are available when relay functionality is configured via software. The configuration is done using the RMODE and RSEL commands. For examples, see section Relay Configuration Examples on page 56.

Set Relay Mode

Use the RMODE command to show or set the relay activation mode.

RMODE [mode]<cr>

(relay is disabled, always open)

(relay closed when below setpoint)

(relay closed when above setpoint)

(relay closed when transmitter in error state)

Example (set relay to Lo_active mode):

>pass 9000 >rmode lo_active

Relay mode : Lo_Active

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where

parameter

Parameter that controls the relay. Available parameters are:

RH T Tdf Td Tw h x a dTd Disabled no parameter, relay disabled

lo_value

Low limit of relay activation.

hi_value

High limit of relay activation.

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]<cr>

relative humidity

temperature

dew/frost point temperature

dew point temperature

wetbulb temperature

enthalpy mixing ratio absolute humidity

dew/frost point depression

Example (show current settings):

>pass 9000 >rsel

Relay configuration : RH (88.00 ... 92.00 %)

Example (set temperature as relay parameter, low limit 25, high limit 30):

>rsel t 25 30 Relay configuration : T (25.00 ... 30.00 'C)

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100

Relative

Humidity (%

)

Time

ay closed

Relay open

RSEL RH 60 70 RMODE Hi_Active

100

Relative Humidity (%)

Relay closed

Relay open

RSEL RH 60 70 RMODE Lo_Active

Relay Configuration Examples

1111-119

Figure 30 Relay Hi_Active in Custom Mode (HMW93)

1111-120

Figure 31 Relay Lo_active in Custom Mode (HMW93)

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The 1 least 50% of the currently measured value. This prevents the use making excessive corrections that are very unlikely to be needed. However, if you feel that you may have done an incorrect adjustment, you can easily remove the adjustment using the

You must enable advanced serial commands using the command before using the calibration and adjustment commands.

The transmitters.

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 Computer on page 68.

The 1-point humidity adjustment of the HMW90 series adjusts both offset and gain, depending on the adjustment condition. In a dry condition (for example, 11 %RH), offset is adjusted more than gain.

NOTE

-point humidity adjustment requires that the target condition is at r from

CRH RESET command.

PASS 9000

Adjust Humidity Measurement

Use the CRH command to perform a humidity adjustment of the relative humidity (RH) measurement. You can do a 1-point or a 2-point adjustment, or clear the adjustment information from the HTM10 module. Note that the factory adjustment will remain intact when user adjustment is cleared.

CRH command does nothing on the TMW92 and TMW93

Show Current RH Adjustment

CRH<cr>

Example (showing default offset and gain):

>pass 9000 >crh

RH Gain : 1.000 RH Offset : 0.000

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where

x = The reference humidity condition (%RH) that the transmitter should be showing.

where

LO = Adjustment point at the dry end (low RH).

HI = Adjustment point at the wet end (high RH). The difference between the two points should be at least 30 %RH.

x = The reference humidity condition (%RH) that the transmitter should be showing.

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]<cr>

Example:

>pass 9000 >crh one 11

2-point Adjustment of RH Measurement

CRH [LO | HI] [x]<cr>

The 2-point correction is not applied immediately – you must use the CRH SAVE command to store your adjustment to the HTM10 module. If you have entered user adjustments using the CRH command but do not wish to commit them, use the CRH CANCEL command.

CRH [SAVE | CANCEL]<cr>

Example (two point adjustment, low point 11 %RH and high point 75 %RH):

>pass 9000 >crh lo 11

OK >crh hi 75 OK

>crh save

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where

x = The reference temperature (in degrees Celsius) that the transmitter should be showing.

Clear User Adjustment of RH Measurement

CRH [RESET]<cr>

Example:

>pass 9000 >crh reset

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.

Show Current T Adjustment

CT<cr>

Example (showing default temperature offset):

>pass 9000 >ct

Temperature offset : 0.000

1-point Adjustment of T Measurement

Place the transmitter in the reference condition and allow it to stabilize before entering the adjustment.

CT [x]<cr>

Example:

>pass 9000 >ct 23

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Clear User Adjustment of T Measurement

CT [RESET]<cr>

Example:

>pass 9000 >ct reset

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.

CTEXT [text]<cr>

CDATE [YYYY-MM-DD]<cr>

Examples:

>pass 9000 >ctext “adjusted rhlab/Tech021”

“adjusted rhlab/Tech021”

>cdate 2011-12-08 Calibration date : 2011-12-08

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where channel

Number of analog output channel to be tested (1 or 2).

value

Voltage or current value to set the channel to. Unit is determined according to output type (V or mA).

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]<cr>

The value you set may not be achievable by the transmitter. Voltage output can go as high as 12 V, and current output can go up to 25 mA. Also, current output cannot go down to zero.

After testing the output, give the ATEST command with the channel number to exit the test mode.

Example (verify output mode of the channels):

>pass 9000 >amode

Aout 1 range ( V) : 0.00 ... 5.00 (error: 5.50) Aout 2 range ( V) : 0.00 ... 5.00 (error: 5.50)

Example (set channel 1 to 6 V):

>atest 1 6 Aout1 ( V) : 6.000

Example (end test mode for channel 1, resume normal output):

>atest 1 Aout1 test mode disabled.

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where

state

State of the relay contacts. Options are:

open closed (close the relay contacts)

where passcode

Passcode to enable advanced commands is 9000.

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]<cr>

(open the relay contacts)

Example (close relay contacts):

>pass 9000 >rtest closed

Relay test mode : Closed

Example (exit relay test mode, resume normal operation):

>rtest Relay test mode : Canceled

Other Commands

Enable Advanced Serial Commands

Use the PASS command to enable the advanced serial commands.

PASS [passcode]<cr>

Example:

>pass 9000

Reset Transmitter

Use the RESET command to reset the transmitter.

RESET<cr>

Example:

>reset Resetting HMW93 / 1.00.00.0000 / XM90 >

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where

parameter_name

Name of the BACnet parameter to change. Available parameters are:

Instance

in range 0

Name

object. String value, no spaces.

Description

Device object. String value, no spaces.

Location

object. String value, no spaces.

Password

service. String value, no spaces.

MAX_MASTER: Max_Master parameter in Device

object. Unsigned value, range 1

parameter_value

New value of the parameter. See descriptions above for allowed values.

reinit

Reinitializes the BACnet stack. Must be given as the only argument for the BACNET command.

Set BACnet Parameters

Use the BACNET command to show or set some of the transmitter’s BACnet parameters. You can also use the BACNET command to reinitialize the BACnet stack of the transmitter without having to reset or power cycle the transmitter.

BACNET [parameter_name [parameter_value]] [reinit]<cr>

: BACnet instance number. Unsigned value

... 4194302.

: BACnet Object_Name shown in the Device

Example (show BACnet parameters):

>bacnet Instance : 6 (00000006h) Name : HMW95_H2330001 Location : Location Description : Description Password : 1234 MAX_MASTER : 127 (007Fh) COV_Interval : 0 Autobaud_Interval : 10

: BACnet Description shown in the

: BACnet Location shown in the Device

: Password used in ReinitializeDevice

... 127.

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Example (change description to main_hall, and reinitialize the BACnet stack):

>bacnet description main_hall Description : main_hall >bacnet reinit Reinitialize signaled to BACnet stack.

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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. Dirty modules should always be replaced with new calibrated modules.

Calibration and Adjustment

HMW90 series transmitters are fully calibrated as shipped from factory. HMW90 series transmitters have a display that makes it easy to compare the measured readings against any portable calibration reference. Note that depending on the ordered configuration, the display may be hidden under the sliding cover.

For adjustment of the measurement, you have the following options:

- 1-point adjustment using the trimmers under the sliding cover. See section Adjustment Using Display and Trimmers on page 66.

- 1-point or 2-point adjustment using the service port. See the following sections:

- Adjustment Using an HM70 on page 67.

- Adjustment Using a Computer on page 68.

If adjustment is not enough to restore the measurement accuracy of the transmitter, you can also replace the measurement module. See section Replacing the Measurement Module on page 69.

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The adjustment of temperature measurement is always a simple 1-point offset correction.

The 1-point humidity adjustment of the HMW90 series adjusts both offset and gain, depending on the adjustment condition. In a dry condition (for example, 11 %RH), offset is adjusted more than gain.

NOTE

CAUTION

NOTE

The 1-point humidity adjustment requires that the target condition is at least 50% of the currently measured value. This prevents the user from making excessive corrections that are very unlikely to be needed. However, if you feel that you may have done an incorrect adjustment, you can easily remove the adjustment using the HM70 or the CRH RESET command on the serial line.

Only T adjustment is available on the TMW92 and TMW93 transmitters.

Adjustment Using Display and Trimmers

The trimmers only turn 135 degrees each way, less than half a rotation. Do not force the trimmer past the stopping point. If you wish to apply a greater correction than allowed by the trimmer in a single adjustment, simply adjust the transmitter again. Corrections applied using the trimmers are cumulative.

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. To enter the adjustment screen, open the slide and rotate the RH or T trimmer slightly during normal measurement. If the trimmer is not centered, you see the trimmer centering screen first. Simply turn the trimmer to the center and wait for the progress bar to complete.

1111-075

Figure 32 Trimmer Centering Screen

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2. In the adjustment screen, turn the trimmer to set the desired

correction. To commit the change, stop turning the trimmer and wait.

1111-076

Figure 33 Trimmer Centering Screen

3. If you wish to apply a greater correction than allowed by the

trimmer in a single adjustment, re-enter the adjustment screen and apply a new correction. Corrections applied using the trimmers are cumulative.

Adjustment Using an HM70

1. Connect the HMW90 series transmitter to the HM70 hand-held

meter using the connection cable (Vaisala order code 219980).

2. 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.

3. In the Functions menu of the HM70, select Calibrate XMW9x

and press Start.

4. Confirm Yes. Confirm the automatic power off notification with

Ok.

5. Select parameter for adjustment, T or RH.

6. Screen shows the measured values and their difference. Press

Adjust to select the Adjustment mode.

7. Select the desired adjustment type using arrow buttons and press

Select:

- To same as reference: Adjusts the measurement of the HMW90 transmitter to the same reading as the reference that is connected to the other port. When the parameter being adjusted is RH, both offset and gain are adjusted, depending on the adjustment condition (same as when turning the RH trimmer). This option is not available if no reference is connected to the HM70.

- 1-point adjustment: Adjusts the measurement of the HMW90 to a reference value that you specify. When the parameter being adjusted is RH, both offset and gain are adjusted, depending on the adjustment condition (same as when turning the

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RH trimmer). Follow the instructions from the HM70 when using this option.

- 2-point adjustment: Adjusts the measurement of the HMW90 at two points to reference values that you specify. This option is not available when adjusting temperature (T).

- Revert factory calib.: This option removes the currently applied user adjustment from the HTM10 module. Only the adjustment for the selected parameter is removed (RH or T).

8. Complete the selected adjustment by following the instructions from the HM70.

Adjustment Using a Computer

For more detailed instructions on using the Vaisala USB cable and a terminal application, see section Connecting With a Computer on page

37.

For a description of the serial commands, see section Calibration and Adjustment Commands on page 57.

1. Connect the HMW90 series transmitter to your computer using the Vaisala USB cable (order code 219690).

2. Start a terminal application and open a new session to the service port of the transmitter. The serial line settings are 19200, N, 8, 1.

3. Before changing the adjustment, issue the following commands to see the transmitter’s current adjustment information:

pass 9000 crh ct ctext cdate

4. Place the entire transmitter in the desired reference condition and allow the measurement to stabilize. Follow the stabilization from the serial line (output from the R command) or the display.

5. You can now use the CRH and CT commands to adjust the transmitter’s RH and T measurement. Refer to the command descriptions for the available options.

6. After performing the adjustment, verify from the serial line or the display that the measurement has been corrected.

7. After completing the adjustments, you can enter a descriptive text string in the transmitter’s memory using the CTEXT command, and note the adjustment date using the CDATE command.

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where

1 = HTM10 module that includes a HUMICAP® sensor for humidity measurement and a digital temperature sensor.

2 = TM10 module with a digital temperature sensor.

User calibration settings (adjustment by trimmers or service port) are stored in the module. the previously applied correction.

Handle the HTM10 module carefully. When reinstalling the transmitter body to the mounting base, avoid touching the module or the HUMICAP

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 16.

NOTE

CAUTION

1203-034

Figure 34 HTM10 and TM10 Modules

Replace the module in your transmitter with the same type as used originally. Replacing a TM10 module with a HTM10 module does not turn a TMW transmitter (temperature only) into a HMW type (humidity and temperature) transmitter.

If you replace the module, you do not need to undo

sensor.

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To replace the module:

1. Disconnect the transmitter body from the mounting base.

2. 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 35 Replacing the HTM10 Module (HMW93)

3. Take the new module and align the pins to the connector on the transmitter’s component board.

4. Push down on the module so that the plastic holders clip into place. Try not to tilt the module, so that the pins will meet the connector straight on.

5. Reconnect the transmitter to the mounting base.

6. Verify that there are no errors when the transmitter starts up. If you see the errors HTM10 01 or HTM10 02 on the screen, it is likely that the module is not seated properly in the connector. In that case, disconnect the transmitter body and try again.

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Problem

Possible Causes and Solutions

Temperature reading shown by

1. The transmitter may be installed in an

Relay does not seem to be

1. Check DIP switch settings. Is the relay

Transmitter does not recognize

1. The command may be one of the

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

the transmitter is too high.

working as configured.

a valid serial command, responds with message

FAIL 1: Unknown command

unsuitable location, for example, near a heat source or in sunlight. See section Relay Configuration in DIP Mode on page 26.

2. Check that the transmitter is installed in proper orientation, with the arrow on the mounting base pointing up.

configured using DIP switches and rotary switch, or software? Check that the rotary switch is not between two positions.

2. Note the effect of hysteresis in DIP mode; see section Relay Configuration in DIP Mode on page 21.

3. Connect to the service port using a computer and use the STATUS command to view the current relay settings.

4. Use the RTEST command to test that the relay is working properly.

advanced commands, and you have not enabled them using the PASS 9000 command.

2. If you are using remote echo on the transmitter, disable it with the ECHO OFF command to avoid collisions.

3. There may be an intermittent connection problem between the transmitter and your terminal. Issue the command again.

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Error Text on Display

Error ID on Serial Line

Possible Cause

Remedy

HTM10 01

Communication

HTM10 module.

Check that the HTM10

Remove and reconnect.

HTM10 04

Problem with

- Check for missing or

sensor to dry out.

HTM10 03

Internal problem

- Restart the transmitter.

HTM10 05

22 HTM10 06

Internal 1

Internal problem

- Restart the transmitter.

Internal 2

Internal 3

Internal 4

Error Messages

Table 12 Error Messages

HTM10 02

problem with

humidity measurement.

with HTM10 module.

with the transmitter.

module sits firmly in place.

damaged HUMICAP® sensor on the HTM10 module.

- Check for condensation on the HUMICAP sensor. Wait for the

- Replace the module if unable to remove the problem.

- Restore the factory settings using service port or DIP switches if reset does not help.

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Viewing Error Messages on Serial Line

View Currently Active Errors

Use the ERRS command to view currently active errors on the serial line:

ERRS<cr>

Example:

>errs NO ERRORS

View Error Table

Use the ERRT command to view the table of possible transmitter errors. The table includes error ID, error count since last reset, level, current state, and error text.

Critical errors require a transmitter reset to recover. Other errors may be recoverable if their cause is removed.

ERRT<cr>

Example:

>errt

Id: N: Level:State: Error text 1: 0: CRITICAL:OFF: FLASH memory corrupted 2: 0: CRITICAL:OFF: Parameter read (using defaults) 3: 0: CRITICAL:OFF: Parameter write 4: 0: CRITICAL:OFF: HTM10 03 FLASH Corrupted 21: 0: ERROR:OFF: HTM10 04 RH measurement 22: 0: ERROR:OFF: HTM10 05 T measurement 23: 0: ERROR:OFF: HTM10 01 Continuous communication failure 41: 0: WARNING:OFF: HTM10 02 Single Communication failure 42: 0: WARNING:OFF: HTM10 06 Device Descriptor match 43: 0: WARNING:OFF: Factory parameter memory not consistent

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Error State

If there are any active “critical” or “error” level errors active in the transmitter, both analog outputs are set into a defined error level instead of the measured result. The error level depends on the output type:

- For 0 ... 5 V output, the default error level is 5.5 V

- For 0 ... 10 V output, the default error level is 11 V

- For 4 ... 20 mA output, the default error level is 3.6 mA

If all “critical” and “error” level errors are turned off (by removing their cause), transmitter resumes normal operation of analog outputs.

You can configure the error level using the AMODE command. See section Set Analog Output Mode on page 46.

NOTE

You can also use the AOVER command to configure a channel to go to the error level if the measured parameter is sufficiently far out of the measured range. See section Set Output Clipping and Error Limit on page 48.

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Factory reset functionality using DIP switches with the transmitter startup screen.

Non-Metric

0...5V

Relay On

Relay High

Custom

Metric

0...10V Relay Off

Relay Low

DIP

Non-Metric

Custom

Metric

DIP

HMW92/TMW92 HMW93/TMW93

2 3 4

5 6

2 3 4

5 6

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. The factory calibration will remain.

Reverting to Factory Settings Using DIP Switches

NOTE

is present in transmitters

firmware version 1.0.3 or newer. The firmware version is visible on

1. Disconnect the transmitter cover from the mounting base.

2. Make a note of the DIP switch positions before changing anything, so you can restore the positions later.

3. Analog output models: Set the DIP switches as shown in Figure 36 below: move all switches up.

Digital output models: Set the DIP switches in the leftmost DIP switch bank as shown in Figure 37 on page 76. Do not move the switches in the other bank.

Figure 36 DIP Switches in Factory Reset Position

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HMW95

2 3 4

5 6

Modbus

BACnet

Parity Even

A B C

Parity None

Baud Rate

Metric

Non-Metric

1209-028

Figure 37 DIP Switches in Factory Reset Position (HMW95)

4. 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.

5. Disconnect the transmitter cover again.

6. Set the DIP switches to the positions they were before.

7. Reconnect the transmitter cover to the mounting base. Check the startup screens to verify the configuration.

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If you are restoring the factory configuration on a factory customized analog output model (HMW90), leave DIP number 8 to the position to avoid the custom configuration from being overwritted by the default settings at transmitter reset. For more in section

After using the

RESET

Reverting to Factory Settings Using Service Port

Use the FRESTORE command to restore the transmitter to factory settings.

FRESTORE<cr>

NOTE

Custom

formation about this, see

Changing Between DIP and Custom Configuration on page 23.

NOTE

command.

Example:

>pass 9000 >frestore

Restoring HTM10 factory parameters HTM10 factory parameters restored Restoring HMW93 factory settings 72/72 parameters restored OK >reset Resetting HMW93 / 1.00.00.0000 / XM90 >

Technical Support

For technical questions, contact the Vaisala technical support by e-mail at

helpdesk@vaisala.com. Provide at least the following supporting

information:

FRESTORE command, reset the transmitter using the

- 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.

For Vaisala Service Center contact information, see

www.vaisala.com/servicecenters.

VAISALA ________________________________________________________________________ 77

User's Guide _______________________________________________________________________

Property

Description / Value

Relative humidity

Measurement range

0 ... 100 %RH, non-condensing

Accuracy

Temperature range +10 ... +40 °C (+50 ... +104 °F)

0 ... 90 %RH

±1.7 %RH

90 ... 100 %RH

±2.5 %RH

Temperature range -5 ... +10 °C,

+104 ... +131°F)

0 ... 90 %RH

±3 %RH

90 ... 100 %RH

±4 %RH

Stability in typical HVAC applications

±0.5 %RH/year

Humidity sensor

Vaisala HUMICAP® 180R

Temperature

Measurement range

-5 ... +55 °C (+23 ... +131 ºF)

Accuracy

+20 ... +30 °C (+68 ... +86 °F)

±0.2 °C (± 0.36 °F)

+10 ... +20 °C, +30 ... +40°C (+50 ... +68 °F, +86 ... +104 °F)

±0.3 °C (± 0.54 °F)

-5 ... +10 °C, +40...+55°C (+23 ... +50 °F, +104 ... +131 °F)

±0.5 °C (± 0.90 °F)

Temperature sensor

Digital temperature sensor

Property

Description / Value

Operating temperature range

-5 ... +55 °C (+23 ... +131 °F)

Storage temperature range

-30 ... +60 °C (-22 ... +140 °F)

Electromagnetic compliance

EN61326-1, Industrial Environment

CHAPTER 7

TECHNICAL DATA

This chapter provides the technical data of the HMW90 series transmitters.

Specifications

Table 13 Performance

+40 ... + 55 °C (+23 ... +50 °F,

Table 14 Operating Environment

78 ___________________________________________________________________ M211399EN-G

Chapter 7 _____________________________________________________________ Technical Data

Property

Description / Value

HMW92 and TMW92

Outputs

HMW92

2 x 4 ... 20 mA, loop powered

TMW92

1 x 4 ... 20 mA, loop powered

Loop resistance

0 ... 600 Ω

Supply voltage

20 ... 28 VDC at 500 Ω load

10 .... 28 VDC at 0 Ω load

Isolation between output channels

500 VDC

HMW93 and TMW93

Outputs

HMW93

2 x 0 ... 5V, 0 ... 10 V

TMW93

1 x 0 ... 5V, 0 ... 10 V

Load resistance

10 kΩ min.

Supply voltage

18 ... 35 VDC 24 VAC ±20 % 50/60 Hz

Max. current consumption

12 mA max. with relay 25 mA

Relay

1 pc (SPST, max. 50 VDC/50 VAC, 500 mA)

3-wire installation max cable resistance

2.5 Ω at 24V supply (with 10 V output, relay not used)

HMW95

Supply voltage

18 ... 35 VDC 24 VAC ±20 % 50/60 Hz

Current consumption (with termination)

Average

10 mA at 24 VDC

Maximum

30 mA at 24 VDC

Power consumption

< 0.3 W

Output type

RS-485 (galvanic isolation, 1.5 kV)

RS-485 end of line termination

Enable with jumper, 120 Ω

Supported protocols

Selectable by DIP switch

BACnet MS/TP

Operating mode

Selectable Master/Slave

Address range, master mode

0 ... 127

Address range, slave mode

128 ... 255

Modbus RTU

Address range

0 ... 247

Service port

RS-485 line for temporary service use

Table 15 Inputs and Outputs

VAISALA ________________________________________________________________________ 79

User's Guide _______________________________________________________________________

Property

Description / Value

IP class

IP30

Standard housing color

White (RAL9003*)

Optional housing colors

Black (RAL9005*)

Light Ivory (RAL1015*)

Housing material

ABS/PC, UL-V0 approved

Output connector

Screw terminals max. wire size 2 mm2 (AWG14)

Service port connector

4-pin M8

Weight

155 g

Dimensions (h × w × d)

133 × 81 × 30

Description

Order Code

Humidity and Temperature Module

and HMW90

HTM10SP Temperature Module for TMW92, TMW93, and TMW90

TM10SP Decorative cover set (10 pcs.)

236285

Connection cable for HM70 hand-held meter

219980 USB cable for computer connection

219690

Standard white sliding cover, blank

DRW237354SP

Standard white sliding cover with hole for display

DRW237339SP

Table 16 Mechanics

(configurable models only)

*RAL code is only indicative with potential small variations in color shade.

Spare Parts and Accessories

Information on spare parts, accessories, and calibration products is available online at www.vaisala.com and store.vaisala.com.

Table 17 HMW90 Series Spare Parts and Accessories

for HMW92, HMW93, HMW95,

Grey (RAL7035*)

80 ___________________________________________________________________ M211399EN-G

Chapter 7 _____________________________________________________________ Technical Data

132.

29.8

47.5

59.5

33.5

30.5

Dimensions in mm

1111-061

Figure 38 HMW90 Series Dimensions

1111-142

Figure 39 Dimensions of the Mounting Base

VAISALA ________________________________________________________________________ 81

User's Guide _______________________________________________________________________

Vendor Name:

Vaisala Oyj

Product Name:

XMW90

Product Model Numbers:

HMW95

Applications Software Version:

1.0.28

Firmware Version:

1.0.0.0

BACnet Protocol Revision:

Version 1, Revision 4

BACnet Standardized Device Profile

 BACnet Operator Workstation (B-OWS)

 BACnet Building Controller (B-BC)

 BACnet Advanced Application Controller (B-AAC)

 BACnet Application Specific Controller (B-ASC)

 BACnet Smart Sensor (B-SS)

 BACnet Smart Actuator (B-SA)

List of all BACnet Interoperability

page 93.

DS-RP-B, DS-RPM-B, DS-WP-B, DS-COVU-B,

APPENDIX A

BACNET REFERENCE

This appendix describes the BACnet protocol implementation of the HMW90 series digital transmitters.

NOTE

For more information on BACnet, refer to addendum D of the ANSI/ASHRAE standard 135-2001: BACnet®—A Data Communication Protocol for Building Automation and Control Networks.

NOTE

Serial line settings such as baud rate are configured using DIP switches. See section Configuration of Digital Output Models on page 23.

BACnet Protocol Implementation Conformance Statement

This statement is a part of the BACnet standard and is required for its use.

(Annex L):

Building Blocks Supported (Annex K):

Device Object

AV2 (Altitude)

Fixed

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.

Table 18 Device Object Properties

(Application Type)

Supported (BIT STRING)

(Conforma

Object Type = 8,

Read Property Multiple Write Property Device Communication Control Reinitialize Device Who-Is

_Supported

VAISALA ________________________________________________________________________ 85

orted (BIT STRING)

BACnetObjectIdentifier

Analog Value

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)

User's Guide _______________________________________________________________________

Property

Data type

Writable

nce Code)

Value or Initial Value

Persistence

Max_APDU_Length_Ac cepted

Unsigned16

N (R)

244

Fixed Max_Master

Unsigned16 (0..127)

Y (R/O)

127

Nonvolatile

Max_Info_Frames

Unsigned

N (R/O)

Fixed

Segmentation_Supporte d

BACnetSegmentation (ENUMERATED)

N (R)

3 (No segmentation)

Fixed APDU_Timeout

Unsigned

N (R)

3000 (ms)

Fixed

APDU_Retries

Unsigned

N (R)

Fixed

Device_Address_Bindin g

List of BACnetAddressBinding

N (R)

NULL

Fixed Database_Revision

Unsigned

N (R)

Volatile

(Application Type)

(Conforma

Object_Identifier: Must be unique in BACnet network. As Object Identifier is 22 bits long its value range is 0 ... 4194303. Each device is assigned a random value in this range at Vaisala factory.

Object_Name: Must be unique in BACnet network. Default object name contains the name and serial number of the device. For example:

- Device model is HMW95, with serial number G1234567.

- Object_Name is "HMW95_G1234567".

System_Status: System status can be OPERATIONAL (0) or NON-OPERATIONAL (4). Device goes to NON-OPERATIONAL state in case of fatal error.

Protocol_Services: Who-Is, I-Am, Who-Has, I-Have and UnconfirmedCOVNotification services are available only when XMW90 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. See section Set BACnet Parameters on page 63.

Database_revision: This is changed during operation according to section 12.11.35 of ANSI/ASHRAE standard 135-2008.

86 ___________________________________________________________________ M211399EN-G

Appendix A _________________________________________________________ BACnet Reference

Property

Data type

Writable

Code)

Value or Initial Value

Persistence

Object_Identifier

BACnetObjectIdentifier

No (R)

00 00 00 02 (hex)

Instance = 2

Nonvolatile

Object_Name

CharacterString

No (R)

"RH"

Nonvolatile

Object_Type

BACnetObjectType (ENUMERATED)

No (R)

0 (Analog Input)

Fixed

Present_Value

Real

Yes (When Oos) (R)

0.0

Volatile Description

CharacterString

No (O)

"Relative Humidity"

Nonvolatile

Units

BACnetEngineeringUnits (ENUMERATED)

No (R)

29 (percent-relativehumidity)

Nonvolatile

Status_Flags

BACnet Status Flags (BIT STRING)

Yes (when OoS) (R)

0 (FAULT == FALSE)

Volatile

Reliability

BACnet Reliability (ENUMERATED)

Yes (when OoS) (O)

0 (NO FAULT DETECTED)

Volatile

Event State

BACnetEventState (ENUMERATED)

No (R)

0 (NORMAL)

Volatile Out_of_Service

BOOLEAN

Yes (R)

0 (FALSE)

Volatile

COV_Increment

Real

Yes (O)

NaN (COV reporting disabled)

Nonvolatile

Min_Pres_Value

Real

No (O)

0.0 (same as limit for UNDER_RANGE)

Nonvolatile

Max_Pres_Value

Real

No (O)

100 (same as limit for OVER_RANGE)

Nonvolatile

Flag

State

Cause

IN_ALARM FALSE

Event State equals 0 (NORMAL)

TRUE

Event State not 0

FAULT FALSE

Reliability equals 0 (NO FAULT DETECTED)

TRUE

Reliability not 0

OVERRIDDEN

FALSE

Always FALSE

OUT_OF_SERVICE FALSE

Present Value may NOT be written via BACnet

TRUE

Present Value may be written via BACnet

State

Cause

0 NO_FAULT_DETECTED

1 NO_SENSOR

No contact to measurement module

2 OVER_RANGE

RH over 100%

3 UNDER_RANGE

RH under 0%

7 UNRELIABLE_OTHER

Other measurement error

State

Cause

0 NORMAL

Reliability equals 0 (NO FAULT DETECTED)

1 FAULT

Reliability not 0

Relative Humidity Object

This Analog Input Object exists only in the HMW95 model.

Table 19 Relative Humidity Object Properties

(Application Type)

Table 20 Status Flags

(Conformance

Object Type = 0,

Table 21 Reliability

Table 22 Event State

VAISALA ________________________________________________________________________ 87

User's Guide _______________________________________________________________________

Instance

Name

Description

Unit

"Td"

"Dewpoint"

62/64 (ºC/ ºF)

"Tdf"

"Dewpoint"

62/64 (ºC/ ºF)

"dTd"

"Dewpoint depression"

121/120 (ΔºK/ ΔºF)

"Tw"

"Wet bulb temperature"

62/64 (ºC/ ºF)

"a"

"Absolute humidity"

217/2000 grams-per-cubic-meter / grains-per-cubic-foot (Vaisala defined unit)

"x"

"Mixing ratio"

28/2001 grams-of-water-per-kilogram-dry-air / grains-ofwater-per-pound (Vaisala defined unit)

"h"

"Enthalpy"

149/24 kilojoules-per-kilogram-dry-air / btus-per-pound-ofdry-air

Property

Data type

Writable

Code)

Value or Initial Value

Persistence

Object_Identifier

BACnetObjectIdentifier

No (R)

00 00 00 xx (hex) Object Type = 0, Instance = x See Table 23 above.

Nonvolatile

Object_Name

CharacterString

No (R)

See Table 23 above.

Nonvolatile

Object_Type

BACnetObjectType (ENUMERATED)

No (R)

0 (Analog Input)

Fixed

Present_Value

Real

Yes (When Oos) (R)

0.0

Volatile Description

CharacterString

No (O)

See table above

Nonvolatile

Units

BACnetEngineeringUnits (ENUMERATED)

No (R)

See table above

Nonvolatile

Status_Flags

BACnet Status Flags (BIT STRING)

Yes (when OoS) (R)

0 (FAULT == FALSE)

Volatile

Reliability

BACnet Reliability (ENUMERATED)

Yes (when OoS) (O)

0 (NO FAULT DETECTED)

Volatile

Event State

BACnetEventState (ENUMERATED)

No (R)

0 (NORMAL)

Volatile Out_of_Service

BOOLEAN

Yes (R)

0 (FALSE)

Volatile

COV_Increment

Real

Yes (O)

NaN (COV reporting disabled)

Nonvolatile

Flag

State

Cause

IN_ALARM FALSE

Event State equals 0 (NORMAL)

TRUE

Event State not 0

FAULT FALSE

Reliability equals 0 (NO FAULT DETECTED)

TRUE

Reliability not 0

OVERRIDDEN

FALSE

Always FALSE

OUT_OF_SERVICE FALSE

Present Value may NOT be written via BACnet

TRUE

Present Value may be written via BACnet

Calculated Humidity Objects

These Analog Input Objects exist only in the HMW95 model.

Table 23 Calculated Humidity Objects

Table 24 Calculated Humidity Object Properties

(Application Type)

Table 25 Status Flags

(Conformance

88 ___________________________________________________________________ M211399EN-G

Appendix A _________________________________________________________ BACnet Reference

State

Cause

0 NO_FAULT_DETECTED

1 NO_SENSOR

No contact to measurement module

2 OVER_RANGE

RH over 100%

3 UNDER_RANGE

RH under 0%

7 UNRELIABLE_OTHER

Other measurement error

State

Cause

0 NORMAL

Reliability equals 0 (NO FAULT DETECTED)

1 FAULT

Reliability not 0

Table 26 Reliability

Table 27 Event State

VAISALA ________________________________________________________________________ 89

User's Guide _______________________________________________________________________

Property

Data type

Writable

Code)

Value or Initial Value

Persistence

Object_Identifier

BACnetObjectIdentifier

No (R)

00 00 00 03 (hex)

Instance = 3

Nonvolatile

Object_Name

CharacterString

No (R)

"T"

Nonvolatile

Object_Type

BACnetObjectType (ENUMERATED)

No (R)

0 (Analog Input)

Fixed

Present_Value

Real

Yes (When Oos) (R)

0.0

Volatile Description

CharacterString

No (O)

"Temperature"

Nonvolatile

Units

BACnetEngineeringUnits

Yes (R)

62 (degrees-Celsius)

C (62) or F (64).

Nonvolatile Status_Flags

BACnet Status Flags (BIT STRING)

Yes (when OoS) (R)

0 (FAULT == FALSE)

Volatile

Reliability

BACnet Reliability (ENUMERATED)

Yes (when OoS) (O)

0 (NO FAULT DETECTED)

Volatile

Event State

BACnetEventState (ENUMERATED)

No (R)

0 (NORMAL)

Volatile Out_of_Service

BOOLEAN

Yes (R)

0 (FALSE)

Volatile

COV_Increment

Real

Yes (O)

NaN (COV reporting disabled)

Nonvolatile

Min_Pres_Value

Real

No (O)

-40.0 (same as limit for UNDER_RANGE)

Nonvolatile

Max_Pres_Value

Real

No (O)

+80.0 (same as limit for OVER_RANGE)

Nonvolatile

Flag

State

Cause

IN_ALARM FALSE

Event State equals 0 (NORMAL)

TRUE

Event State not 0

FAULT FALSE

Reliability equals 0 (NO FAULT DETECTED)

TRUE

Reliability not 0

OVERRIDDEN

FALSE

Always FALSE

OUT_OF_SERVICE FALSE

Present Value may NOT be written via BACnet

TRUE

Present Value may be written via BACnet

State

Cause

0 NO_FAULT_DETECTED

1 NO_SENSOR

No contact to measurement module

2 OVER_RANGE

T over +80 °C

3 UNDER_RANGE

T under -40 °C

7 UNRELIABLE_OTHER

Other measurement error

State

Cause

0 NORMAL

Reliability equals 0 (NO FAULT DETECTED)

1 FAULT

Reliability not 0

Temperature Object

Table 28 Temperature Object Properties

(Application Type)

(ENUMERATED)

(Conformance

Object Type = 0,

Possible units are

Table 29 Status Flags

Table 30 Reliability

Table 31 Event State

90 ___________________________________________________________________ M211399EN-G

Appendix A _________________________________________________________ BACnet Reference

Pressure and Altitude objects are linked together. If object is changed, Present Value in another object is changed accordingly.

Property

Data type

Writable

Value or Initial Value

Object Identifier

BACnet Object Identifier

00 80 00 01 (hex)

Instance = 1

Object Name

Character String

"OPER P"

Object Type

BACnet Object Type

2 (Analog Value)

Present Value

Real

Yes

1013.25

Description

Character String

"Operation Pressure"

Units

BACnet Engineering Units

133 (hectopascals)

Status Flags

BACnet Status Flags

0 (FAULT == FALSE)

Event State

BACnet Event State

0 (NORMAL, does not change)

Out of Service

BOOLEAN

0 (FALSE)

Flag

State

Cause

IN_ALARM

FALSE

Always FALSE

FAULT

FALSE

Always FALSE

OVERRIDDEN

FALSE

Always FALSE

OUT_OF_SERVICE

FALSE

Always FALSE

Operation Pressure Object

Set current atmospheric pressure to improve the calculation accuracy of pressure dependent humidity parameters.

NOTE

Table 32 Operation Pressure Object Properties

Table 33 Status Flags

Present Value in one

Object Type = 2,

VAISALA ________________________________________________________________________ 91

User's Guide _______________________________________________________________________

Property

Data type

Writable

Value or Initial Value

Object Identifier

BACnet Object Identifier

00 80 00 02 (hex)

Instance = 2

Object Name

Character String

"OPER Altitude"

Object Type

BACnet Object Type

2 (Analog Value)

Present Value

Real

Yes

0.0

Description

Character String

"Operating Altitude"

Units

BACnet Engineering Units

Yes

31 (meters) or 33 (feet)

Status Flags

BACnet Status Flags

0 (FAULT == FALSE)

Event State

BACnet Event State

0 (NORMAL, does not change)

Out of Service

BOOLEAN

0 (FALSE)

Flag

State

Cause

IN_ALARM

FALSE

Always FALSE

FAULT

FALSE

Always FALSE

OVERRIDDEN

FALSE

Always FALSE

OUT_OF_SERVICE

FALSE

Always FALSE

Operation Altitude Object

Set current atmospheric pressure to improve the calculation accuracy of pressure dependent humidity parameters.

NOTE

Pressure and Altitude objects are linked together. If Present Value in one object is changed, Present Value in another object is changed accordingly.

Table 34 Operation Altitude Object Parameters

Table 35 Status Flags

Object Type = 2,

92 ___________________________________________________________________ M211399EN-G

Appendix A _________________________________________________________ BACnet Reference

Application Service (B-SS)

Designation

Supported

Data Sharing - Read Property - A

DS-RP-A



Data Sharing - Read Property - B

DS-RP-B



Data Sharing - Read Property Multiple - A

DS-RPM-A



Data Sharing - Read Property Multiple - B

DS-RPM-B



Data Sharing - Write Property - A

DS-WP-A



Data Sharing - Write Property - B

DS-WP-B



Data Sharing - Write Property Multiple - B

DS-WPM-B



Data Sharing - COV - Unsolicited - A

DS-COVU-A



Data Sharing - COV - Unsolicited - B

DS-COVU-B



Alarm and Event - Notification Internal - B

AE-N-I-B



Alarm and Event - ACK - B

AE-ACK-B



Alarm and Event - Information - B

AE-INFO-B



Alarm and Event - Enrollment Summary - B

AE-ESUM-B



Scheduling - External - B

SCHED-E-B



Trending - Viewing and Modifying Trends Internal - B

T-VMT-I-B



Trending - Automated Trend Retrieval - B

T-ATR-B



Device Management - Dynamic Device Binding - A

DM-DDB-A



Device Management - Dynamic Device Binding - B

DM-DDB-B



Device Management - Dynamic Object Binding - A

DM-DOB-A



Device Management - Dynamic Object Binding - B

DM-DOB-B



Device Management - Device Communication Control - B

DM-DCC-B



Device Management - Time Synchronization - B

DM-TS-B



Device Management - UTC Time Synchronization - B

DM-UTC-B



Device Management - Reinitialize Device - B

DM-RD-B



Device Management - Backup and Restore - B

DM-BR-B



Network Management - Connection Establishment - A

NM-CE-A



BIBBs Supported

Table 36 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.

Table 36 BACnet Smart Sensor BIBBs Support

VAISALA ________________________________________________________________________ 93

User's Guide _______________________________________________________________________

Application Service

Initiates Requests

Executes Requests

AcknowledgeAlarm



AddListElement



AtomicReadFile



AtomicWriteFile



ConfirmedCOVNotification



ConfirmedEventNotification



ConfirmedPrivateTransfer



ConfirmedTextMessage



CreateObject



DeleteObject



DeviceCommunicationControl





Disconnect-Connection-To-Network



Establish-Connection-To-Network



GetAlarmSummary



GetEnrollmentSummary



GetEventInformation



I-Am





I-Am-Router-To-Network



I-Could-Be-Router-To-Network



I-Have





Initialize-Routing-Table



Initialize-Routing-Table-Ack



LifeSafetyOperation



ReadProperty





ReadPropertyConditional



ReadPropertyMultiple





ReadRange



ReinitializeDevice





RemoveListElement



SubscribeCOV



SubscribeCOVProperty



TimeSynchronization



UnconfirmedCOVNotification





UnconfirmedEventNotification



UnconfirmedPrivateTransfer



UnconfirmedTextMessage



UTCTimeSynchronization



VT-Close



VT-Data



VT-Open



Who-Has





Who-Is





Who-Is-Router-To-Network



WriteProperty





WritePropertyMultiple



Application Services Supported

Table 37 below lists all the BACnet standard application services. The checked services are supported by the device.

Table 37 BACnet Standard Application Services Support

94 ___________________________________________________________________ M211399EN-G

Appendix B _________________________________________________________ Modbus Reference

For more information on Modbus protocol, refer to the Implementation Guide for Modbus Over Serial Line.

Serial line settings such as baud rate are configured using DIP switches. See section

Function Code

Name

03 (0x03)

Read Holding Registers

04 (0x04)

Read Input Register

06 (0x06)

Write Single Register

16 (0x10)

Write Multiple Registers

43 / 14 (0x2B / 0x0E)

Read Device Identification

Name

Metric float

Metric integer

Metric unit

Non-metric float

Non-metric integer

Non-metric unit

0003…0004

0258 (×0.01)

%RH

6403…0004

6458 (×0.01)

%RH

0005…0006

0259 (×0.01)

°C

6405…0006

6459 (×0.01)

°F

0007…0008

0260 (×0.01)

°C

6407…0008

6460 (×0.01)

°F

Tdf

0009…0010

0261 (×0.01)

°C

6409…0010

6461 (×0.01)

°F

dTd

0011…0012

0262 (×0.01)

°C

6411…0012

6462 (×0.01)

°F

0013…0014

0263 (×0.01)

°C

6413…0014

6463 (×0.01)

°F

0015…0016

0264 (×0.01)

g/m3

6415…0016

6464 (×0.01)

gr/ft3

0017…0018

0265 (×0.01)

g/kg

6417…0018

6465 (×0.01)

gr/lb

0019…0020

0266 (×0.01)

kJ/kg

6419…0020

6466 (×0.01)

btu/lb

APPENDIX B

MODBUS REFERENCE

This appendix describes the Modbus protocol implementation of the HMW90 series digital transmitters.

NOTE

Specification and

Configuration of Digital Output Models on page 23.

Table 38 Modbus Functions Supported by HMW90

Table 39 HMW90 Modbus Measurement Data Registers

Values read from the integer registers must be multiplied with the provided multiplier to get the actual value. All integer values are signed.

VAISALA ________________________________________________________________________ 95

User's Guide _______________________________________________________________________

Name

Address

Description

Error code (bits 15…0)

0513,6913

0 = no errors

Bit

Description

Any critical error is active. Requires transmitter restart or maintenance.

Any error is active. May be recoverable.

Internal error (Flash).

Module communication or compatibility error.

HTM10 module error.

Temperature measurement error.

Humidity measurement error.

Reserved.

Miscellaneous error.

Name

Metric float

Metric integer

Metric unit & valid range

Non-metric float

Non-metric integer

Non-metric unit & valid range

Pressure

0777…0779

1029 (×1)

700…1100 hPa

7177…7179

7429 (×1)

700 … 1100 hPa

Elevation

0779…0780

1030 (×1)

-700...2300 m

7179…7180

7430 (×1)

-2300 … 10000 ft

Available measurements depend on the transmitter model. Values may be unavailable also in case of device failure. Read status registers or exception status outputs to check for failures. Accessing unavailable (unsupported or temporarily missing) measurement data does not generate an exception. “Unavailable” value (a quiet NaN for floating point data or 0x8000 for integer data) is returned instead. An exception is generated only for any access outside the HMW90 registers.

A “quiet NaN” value is returned for unavailable values. Writing any NaN or infinite value is silently ignored.

NOTE

A complete 32-bit floating point value should be read and written in a single Modbus transaction.

Table 40 HMW90 Modbus Status Registers (Read-only)

Table 41 HMW90 Modbus Error Code Bits

Table 42 HMW90 Modbus Configuration Parameter Registers

NOTE

Elevation is linked to pressure according to the following equation:

p = 101325 (1 - 2.25577 10-5 h)

where p is pressure in Pa and h is altitude above sea level in m. This means that changing altitude will also change pressure and vice versa.

96 ___________________________________________________________________ M211399EN-G

5.25588

Appendix B _________________________________________________________ Modbus Reference

Object Id

Object Name

Description

0x00

VendorName

“Vaisala”

0x01

ProductCode

Transmitter model (for example, “HMW95”)

0x02

MajorMinorVersion

Software version (for example, “1.0.0”)

0x03

VendorUrl

“http://www.vaisala.com/”

0x04

ProductName

HMW 9 0

0x80

SerialNumber

Serial number (e.g. “H0810040”)

0x81

CalibrationDate

Date of the last calibration (for example, “2014-09-11”, empty if not available)

0x82

CalibrationText

Information text of the last calibration (empty if not available)

Code

Name

Reason

ILLEGAL FUNCTION

Unsupported function code

ILLEGAL DATA ADDRESS

Address out of valid ranges

ILLEGAL DATA VALUE

Otherwise invalid request

Table 43 HMW90 Modbus Device Identification

Table 44 HMW90 Modbus Exception Responses

VAISALA ________________________________________________________________________ 97

*M211399EN*

www.vaisala.com

Vaisala HMW93, TMW92, HMW92D, HMW93D, TMW93 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

GENERAL INFORMATION

About This Manual

Contents of This Manual

Version Information

Related Manuals

Documentation Conventions

Safety

ESD Protection

Recycling

Regulatory Compliances

Trademarks

Software License

Warranty

PRODUCT OVERVIEW

Introduction to HMW90 Series

HMW90 Series Transmitters

Output Parameters Explained

Transmitter Parts

Decorative Cover Option

INSTALLATION

Configuration Before Installation

Configuration of Analog Output Models

DIP Switches of Analog Output Models

Relay Configuration in DIP Mode

Changing Between DIP and Custom Configuration

Configuration of Digital Output Models

DIP Switches of Digital Output Models

Addressing with BACnet Protocol

Addressing with Modbus Protocol

Selecting Location

Installing the Mounting Base

Wiring

Wiring HMW92

Wiring HMW93

Wiring TMW92

Wiring TMW93

Wiring HMW95

Connecting a Common AC Power Supply to Several Transmitters

OPERATION

Display

Startup Screens

Measurement Screen

Indicators on the Display

Service Port

Connecting With an MI70 Indicator

Connecting With a Computer

Installing the Driver for the USB Service Cable

Terminal Application Settings

List of Serial Commands

Transmitter Information

Show Transmitter Information

Show Transmitter Firmware Version

Show Transmitter Serial Number

Show Transmitter Status

Show Measured Parameters

Show Command Help

Show Command List

Measurement Settings

Set Environmental Parameters

Select Units

Analog Output Settings

Set Analog Output Mode

Set Analog Output Scaling

Set Output Clipping and Error Limit

Display Settings

Select Parameters to Display

Serial Line Output Commands

Start Measurement Output

Stop Measurement Output

Output a Reading Once

Set Output Interval

Set Output Format

Serial Line Settings

Set Remote Echo

Set Serial Line Turnaround Delay

Relay Configuration in Custom Mode