Vaisala GMW90 User Manual

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Page 1

USER'S GUIDE

Vaisala CARBOCAP® Carbon Dioxide,

Temperature, and Humidity Transmitters

GMW90 Series

M211659EN-B

Page 2

PUBLISHED BY

Street address: Vanha Nurmijärventie 21, FI-01670 Vantaa, Finland Mailing address: P.O. Box 26, FI-00421 Helsinki, Finland Phone: +358 9 8949 1 Fax: +358 9 8949 2227

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.

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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 ................................................................................ 10

Regulatory Compliances ....................................................... 10

Patent Notice .......................................................................... 10

Trademarks ............................................................................. 11

Software License .................................................................... 11

Warranty .................................................................................. 11

CHAPTER 2

PRODUCT OVERVIEW ................................................................................ 12

Introduction to GMW90 Series .............................................. 12

GMW90 Series Transmitters ................................................. 13

Output Parameters Explained ............................................... 14

Transmitter parts .................................................................... 15

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

Changing Between DIP and Custom Configuration ....... 21

Configuration of Digital Output Models ............................... 21

DIP Switches of Digital Output Models .......................... 22

Addressing with BACnet Protocol .................................. 23

Addressing with Modbus Protocol .................................. 23

Selecting Location ................................................................. 24

Installing the Mounting Base ................................................ 25

Wiring ...................................................................................... 25

Wiring GMW93R/RA ........................................................... 27

Wiring GMW93 .................................................................... 27

Wiring GMW94R ................................................................. 28

Wiring GMW94 .................................................................... 28

Wiring GMW95 .................................................................... 29

Connecting Several Transmitters on Same

RS-485 Line ................................................................... 29

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Connecting a Common AC Power Supply to Several

Transmitters ......................................................................... 30

CHAPTER 4

OPERATION ................................................................................................. 31

Display ..................................................................................... 31

Startup Screens ................................................................... 31

Measurement Screen .......................................................... 32

Indicators on the Display ..................................................... 33

Service Port ............................................................................. 33

Connecting With an MI70 Indicator ..................................... 33

Connecting With a Computer .............................................. 34

Installing the Driver for the USB Service Cable ............. 34

Terminal Application Settings ......................................... 35

List of Serial Commands ....................................................... 37

Transmitter Information ......................................................... 38

Show Transmitter Information ............................................. 38

Show Transmitter Firmware Version ................................... 38

Show Transmitter Serial Number ........................................ 38

Show Transmitter Status ..................................................... 39

Show Measured Parameters ............................................... 41

Show Command Help.......................................................... 41

Show Command List ........................................................... 42

Measurement Settings ........................................................... 42

Set Environmental Parameters ........................................... 42

Select Units ......................................................................... 43

Analog Output Settings ......................................................... 43

Set Analog Output Mode ..................................................... 43

Set Analog Output Scaling .................................................. 44

Set Output Clipping and Error Limit ..................................... 45

Display Settings ...................................................................... 47

Select Parameters to Display .............................................. 47

Serial Line Output Commands .............................................. 48

Start Measurement Output .................................................. 48

Stop Measurement Output .................................................. 48

Output a Reading Once ....................................................... 48

Set Output Interval ............................................................... 49

Set Output Format ............................................................... 50

Serial Line Settings ................................................................ 52

Set Remote Echo ................................................................ 52

Set Serial Line Turnaround Delay ....................................... 52

Calibration and Adjustment Commands .............................. 53

Adjust CO2 Measurement .................................................... 53

Show Current CO2 Adjustment ....................................... 53

1-point Adjustment of CO2 Measurement ...................... 54

2-point Adjustment of CO2 Measurement ...................... 54

Clear User Adjustment of CO2 Measurement ................ 55

Adjust Humidity Measurement ............................................ 55

Show Current RH Adjustment ........................................ 55

1-point Adjustment of RH Measurement ........................ 56

2-point Adjustment of RH Measurement ........................ 56

Clear User Adjustment of RH Measurement .................. 57

Adjust Temperature Measurement ...................................... 57

Show Current T Adjustment ........................................... 57

1-point Adjustment of T Measurement ........................... 57

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Clear User Adjustment of T Measurement .................... 58

Enter Calibration and Adjustment Information .................... 58

Testing Commands ................................................................ 59

Test Analog Outputs ........................................................... 59

Other Commands ................................................................... 60

Enable Advanced Serial Commands .................................. 60

Reset Transmitter ................................................................ 60

Set BACnet Parameters ...................................................... 61

Set CO2 Indicator LED Parameters ..................................... 62

CHAPTER 5

MAINTENANCE ........................................................................................... 63

Cleaning .................................................................................. 63

Calibration and Adjustment .................................................. 63

Adjustment Methods ........................................................... 63

Notes for CO2 Adjustment ................................................... 64

Using Calibration Gas vs. Ambient Gas......................... 64

Effect of Temperature on CO2 Measurement ................ 64

Effect of Pressure on CO2 Measurement ....................... 65

Notes for T Adjustment ....................................................... 65

Notes for RH Adjustment .................................................... 65

Adjustment Using Display and Trimmers ............................ 66

Adjustment Using a Hand-Held Meter ................................ 67

Adjustment Using a Computer ............................................ 68

Repair Maintenance ............................................................... 69

Replacing the GM10 Module ............................................... 70

Replacing the HTM10 Module ............................................. 71

CHAPTER 6

TROUBLESHOOTING ................................................................................. 72

Problem Situations ................................................................. 72

Error Messages ...................................................................... 73

Viewing Error Messages on Serial Line .............................. 74

View Currently Active Errors .......................................... 74

View Error Table ............................................................ 74

Error State ............................................................................... 75

Reverting to Factory Settings ............................................... 76

Reverting to Factory Settings Using DIP Switches ............. 76

Reverting to Factory Settings Using Service Port ............... 77

Technical Support .................................................................. 78

Product Returns ..................................................................... 78

CHAPTER 7

TECHNICAL DATA ...................................................................................... 79

Specifications ......................................................................... 79

Spare Parts and Accessories ................................................ 81

Dimensions in mm ................................................................. 82

APPENDIX A

BACNET REFERENCE ................................................................................ 83

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BACnet Protocol Implementation Conformance

Statement ................................................................................ 83

Transmitter Models and Objects ........................................... 85

Device Object .......................................................................... 86

Carbon Dioxide Object ........................................................... 88

Temperature Object ................................................................ 89

Relative Humidity Object ....................................................... 90

Calculated Humidity Objects ................................................. 91

Operation Pressure Object .................................................... 92

Operation Altitude Object ...................................................... 93

BIBBs Supported .................................................................... 94

Application Services Supported ........................................... 95

APPENDIX B

MODBUS REFERENCE ............................................................................... 96

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List of Figures

Figure 1 GMW90 with Visible Display and Indicator LEDs .................... 12

Figure 2 Transmitter Parts - Outside ...................................................... 15

Figure 3 Opening the Transmitter........................................................... 16

Figure 4 Transmitter Parts – Inside ........................................................ 17

Figure 5 Decorative Cover ...................................................................... 18

Figure 6 DIP Switch Settings of Analog Output Models ......................... 20

Figure 7 DIP Switch Settings of Digital Output Models .......................... 22

Figure 8 Example of Transmitter Addressing ......................................... 23

Figure 9 Selecting Transmitter Location ................................................. 24

Figure 10 Installing the Mounting Base .................................................... 25

Figure 11 Wiring from Behind (Recommended) ....................................... 26

Figure 12 Wiring from Above .................................................................... 26

Figure 13 Wiring GMW93R/RA ................................................................ 27

Figure 14 Alternate Wiring for GMW93R/RA ............................................ 27

Figure 15 Wiring GMW93 ......................................................................... 27

Figure 16 Wiring GMW94R ...................................................................... 28

Figure 17 Wiring GMW94 ......................................................................... 28

Figure 18 Wiring GMW95 ......................................................................... 29

Figure 19 Several Transmitters on Same RS-485 Line............................ 29

Figure 20 Connecting a Common AC Power Supply ............................... 30

Figure 21 GMW95R Startup Screens ....................................................... 31

Figure 22 Measurement Screen – Normal Operation .............................. 32

Figure 23 Measurement Screen – Problem With Humidity Measurement32

Figure 24 PuTTY Terminal Application..................................................... 36

Figure 25 Effect of Pressure on CO2 Reading ......................................... 65

Figure 26 Trimmer Centering Screen ....................................................... 66

Figure 27 Adjustment Screen ................................................................... 66

Figure 28 Disconnecting the GM10 Module ............................................. 70

Figure 29 Replacing the HTM10 Module .................................................. 71

Figure 30 DIP Switch Factory Reset (GMW93/94) ................................... 76

Figure 31 DIP Switch Factory Reset (GMW95) ........................................ 76

Figure 32 GMW90 Series Dimensions ..................................................... 82

Figure 33 Dimensions of the Mounting Base ........................................... 82

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List of Tables

Table 1 Manual Revisions ....................................................................... 8

Table 2 Related Manuals ......................................................................... 8

Table 3 Applicable Patents .................................................................... 10

Table 4 GMW90 Series Transmitters .................................................... 13

Table 5 Parameters Supported by GMW90 Series ............................... 14

Table 6 Serial Interface Settings ........................................................... 35

Table 7 Basic Serial Commands ........................................................... 37

Table 8 Advanced Serial Commands .................................................... 37

Table 9 FORM Command Parameters .................................................. 51

Table 10 FORM Command Modifiers ...................................................... 51

Table 11 Troubleshooting Table .............................................................. 72

Table 12 Error Messages ........................................................................ 73

Table 13 Performance ............................................................................. 79

Table 14 Operating Environment ............................................................. 80

Table 15 Inputs and Outputs ................................................................... 80

Table 16 Mechanics ................................................................................. 80

Table 17 GMW90 Series Spare Parts and Accessories .......................... 81

Table 18 Device Object Properties .......................................................... 86

Table 19 Carbon Dioxide Object Properties ............................................ 88

Table 20 Status Flags .............................................................................. 88

Table 21 Reliability .................................................................................. 88

Table 22 Event State ............................................................................... 88

Table 23 Temperature Object Properties ................................................ 89

Table 24 Status Flags .............................................................................. 89

Table 25 Reliability .................................................................................. 89

Table 26 Event State ............................................................................... 89

Table 27 Relative Humidity Object Properties ......................................... 90

Table 28 Status Flags .............................................................................. 90

Table 29 Reliability .................................................................................. 90

Table 30 Event State ............................................................................... 90

Table 31 Calculated Humidity Objects .................................................... 91

Table 32 Calculated Humidity Object Properties ..................................... 91

Table 33 Status Flags .............................................................................. 91

Table 34 Reliability .................................................................................. 92

Table 35 Event State ............................................................................... 92

Table 36 Operation Pressure Object Properties ..................................... 92

Table 37 Status Flags .............................................................................. 92

Table 38 Operation Altitude Object Parameters ...................................... 93

Table 39 Status Flags .............................................................................. 93

Table 40 BACnet Smart Sensor BIBBs Support...................................... 94

Table 41 BACnet Standard Application Services Support ...................... 95

Table 42 Modbus Functions Supported by GMW90 ............................... 96

Table 43 GMW90 Modbus Measurement Data Registers ....................... 96

Table 44 GMW90 Modbus Status Registers (Read-only) ....................... 97

Table 45 GMW90 Modbus Error Code Bits ............................................. 97

Table 46 GMW90 Modbus Configuration Parameter Registers .............. 97

Table 47 GMW90 Modbus Device Identification ..................................... 98

Table 48 GMW90 Modbus Exception Responses ................................... 98

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Chapter 1 _________________________________________________________ General Information

CHAPTER 1

GENERAL INFORMATION

This chapter provides general notes for the manual and the products that are covered.

About This Manual

This manual provides information for installing, operating, and maintaining GMW90 series transmitters. All transmitter models in the 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 the products that are covered.

- Chapter 2, Product Overview, introduces the GMW90 series transmitters.

- Chapter 3, Installation, provides you with information that is intended to help you install the GMW90 series transmitters.

- Chapter 4, Operation, contains information that is needed to operate the GMW90 series transmitters.

- Chapter 5, Maintenance, provides information that is needed in basic maintenance of the GMW90 series.

- Chapter 6, Troubleshooting, describes possible problems, their probable causes and remedies, and provides contact information for technical support.

- Chapter 7, Technical Data, provides the technical data of the GMW90 series transmitters.

- Appendix A, BACnet Reference,describes the BACnet protocol implementation of the GMW90 series digital transmitters.

- Appendix B, Modbus Reference, describes the Modbus protocol implementation of the GMW90 series digital transmitters.

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Manual Code

Description

M211659EN-B

April 2014. This manual. Added transmitter models

appendix.

M211659EN-A

November 2013. First version.

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

with analog outputs. Updated BACnet reference

Related Manuals

Table 2 Related Manuals

WARNING

CAUTION

NOTE

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 highlights important information on using the product.

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Chapter 1 _________________________________________________________ General Information

Connect only de

If you connect more than one transmitter to a single 24 VAC transformer, always connect the phase (~) to the +Vs connector in each transmitter.

The trimmers only turn 135 degrees each way, less than half a rotation. Do not force the trimmer past the stopping po

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

Safety

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

WARNING

CAUTION

-energized wires.

int.

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:

- When installing the transmitter, do not touch exposed contacts on the component board.

- 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.

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Patent Issued By

Patent Number

United States Patent and Trademark Office US 5,827,438

US 6,177,673

European Patent Office EP0776023

EP0922972

German Patent and Trade Mark Office

69615635

Japan Patent Office

4263285

Finnish Patent Office 112005

105598

Recycling

Recycle all applicable material.

Dispose of the unit according to statutory regulations. Do not dispose of with regular household refuse.

Regulatory Compliances

GMW90 series transmitters comply 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.

Patent Notice

GMW90 series are protected by the following patents and their corresponding national rights:

Table 3 Applicable Patents

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Chapter 1 _________________________________________________________ General Information

Trademarks

CARBOCAP® is a registered trademark of Vaisala Oyj.

All other trademarks are the property of their respective owners.

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.

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CHAPTER 2

PRODUCT OVERVIEW

This chapter introduces the GMW90 series transmitters.

Introduction to GMW90 Series

GMW90 series transmitters are wall-mount transmitters for building automation applications. All GMW90 series transmitters measure carbon dioxide (CO2) and temperature (T), and some models also include humidity measurement. The CO2 measurement is based on a new generation CARBOCAP® sensor, which uses a novel, silicon-based microchip emitter instead of an incandescent light bulb.

All 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 PC.

1310-036

Figure 1 GMW90 with Visible Display and Indicator LEDs

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Chapter 2 ___________________________________________________________ Product Overview

Model

Measurement

Output

Display Visible

CO2 LEDs

GMW93

CO2, temperature

2 x analog (0 ... 5/10V)

GMW93D

CO2, temperature

2 x analog (0 ... 5/10V)

Yes

GMW93R

CO2, humidity, temperature

3 x analog (0 ... 5/10V)

GMW93RD

CO2, humidity, temperature

3 x analog (0 ... 5/10V)

Yes

GMW93RA

CO2, humidity, temperature

3 x analog (0 ... 5/10V)

Yes

GMW94

CO2, temperature

2 x analog (0/4 ... 20 mA)

GMW94D

CO2, temperature

2 x analog (0/4 ... 20 mA)

Yes

GMW94R

CO2, humidity, temperature

3 x analog (0/4 ... 20 mA)

GMW94RD

CO2, humidity, temperature

3 x analog (0/4 ... 20 mA)

Yes

GMW95

CO2, temperature

Digital (Modbus/BACnet)

GMW95D

CO2, temperature

Digital (Modbus/BACnet)

Yes

GMW95R

CO2, humidity, temperature

Digital (Modbus/BACnet)

GMW95RD

CO2, humidity, temperature

Digital (Modbus/BACnet)

Yes

GMW90*

CO2, temperature

Configurable (digital or analog)

Optional

GMW90R*

CO2, humidity, temperature

Configurable (digital or analog)

Optional

GMW90 Series Transmitters

Table 4 below lists the most important differences between the GMW90 series transmitter models. For technical specifications, see Chapter 7, Technical Data, on page 79.

Table 4 GMW90 Series Transmitters

* Factory configurable model. See order form for details.

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Parameter

Symbol

Unit(s)

Description

Carbon dioxide

CO2

ppm

Concentration of carbon dioxide gas (CO2).

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.

Output Parameters Explained

Table 5 Parameters Supported by GMW90 Series

NOTE

humidity

temperature

°F

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

vapor in the air will condense into

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

can be reached by evaporative

All of these parameters are visible and selectable using the service port (serial line and MI70 indicator use) even if your transmitter model does not have a humidity sensor. However, the transmitter will not show any measurement results for parameters that it cannot measure or calculate.

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Chapter 2 ___________________________________________________________ Product Overview

1 = Locking screw for mounting base. Not included, M3×6 recommended.

2 = Inlet for CO2 calibration gas. Use a 3 mm inner diameter silicone tube and 0.4 l/min flow.

3 = Adjustment trimmers.

4 = Service port.

5 = Window for display (only in models where the display is visible)

6 = Locking screw for slide. Not included, M3×6 recommended.

7 = Display.

8 = CO2 level indicator LEDs. Enabled on models with LED option. Default settings:

blinking at > 5000 ppm CO2.

9 = Type label.

10 = Holes for indicator LEDs (only in models with LED option).

11 = Grip for slide.

Transmitter parts

1310-038

Figure 2 Transmitter Parts - Outside

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- Green LED (bottom): lit between 0 ... 800 ppm CO2.

- Yellow LED (middle): lit between 800 ... 1200 ppm CO2.

- Red LED (top): lit between 1200 ... 5000 ppm CO2,

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

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.

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

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Chapter 2 ___________________________________________________________ Product Overview

1 = Mounting base.

2 = Opening for cable (wiring from top).

3 = Terminal label.

4 = Opening for cable (wiring from behind, recommended).

5 = Label for RS-485 baud rate DIP switch settings. Included only on digital models.

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

7 = Screw terminals.

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

9 = Transmitter body.

RS-485 termination jumper (connects a 120 Ω resistor). Included only on digital models.

11 = GM10 module (measures CO2).

12 = DIP switches for common configuration options. Digital models have an extra DIP switch bank for transmitter address.

13 = Grip for slide.

14 = TM10 module (measures temperature only) or HTM10 module (measures humidity and temperature).

15 = HUMICAP® sensor (on models with humidity measurement).

14 15

1310-039

Figure 4 Transmitter Parts – Inside

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1 = Decorative cover lid. If you intend to paint the cover, paint the outer surface of this 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 5 Decorative Cover

part, and leave the other part entirely

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1310-042

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Chapter 3 ________________________________________________________________ Installation

CHAPTER 3

INSTALLATION

This chapter provides you with information that is intended to help you install the GMW90 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 GMW93) and digital output models (for example, GMW95).

Configuration of Analog Output Models

You can configure analog output models of GMW90 series transmitters in two ways:

- Using the DIP switches on the component board. See section DIP Switches of Analog Output Models on page 20.

- Configuring the settings in software through the service port. See connection instructions and serial line commands in Chapter 4, Operation, on page 31.

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. Additionally, standard analog output settings and display configuration are always set in the DIP configuration mode. DIP switch number 8 is the master switch that controls which configuration method is used.

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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 or

0...20 mA

Set analog output channels to 0 ... 5 V (voltage output) or 0 ... 20 mA (current output)

0...10V or

4...20 mA

Set analog output channels to 0 ... 10 V (voltage output) or 4 ... 20 mA (current output)

Not used

5 Not used

6 Not used

7 Not used

8 Custom

Configuration through service port only.

DIP

Configuration by DIP switches only. Resets display analog outputs to standard settings.

Non-Metric

0...20mA

Custom

Metric

4..20mA

DIP

2 3 4

5 6

Non-Metric

Custom

Metric

DIP

2 3 4

5 6

GMW93 GMW94

0...5V

0...10V

DIP Switches of Analog Output Models

1402-027

Figure 6 DIP Switch Settings of Analog Output Models

NOTE

analog output. Sets analog output scaling

and analog output. Sets analog output scaling to

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 21.

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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 CO2, scaling 0 ... 2000 ppm.

- Channel 2 output parameter T, scaling -5 ... +55 °C.

- Channel 3 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 76.

Configuration of Digital Output Models

Digital output models of the GMW90 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 22.

- You can set a jumper for RS-485 line termination on the component board (120 Ω resistor). For location of the jumper, see Figure 4 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 31.

- 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 83.

- Appendix B, Modbus Reference, on page 96.

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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

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

Parity None

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

Non-Metric

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

Metric

Use 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

128 64 32 16 8 4 2 1

Address

(Binary Weighting)

Metric

Non-Metric

DIP Switches of Digital Output Models

1209-016

Figure 7 DIP Switch Settings of Digital Output Models

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.

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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 GMW90 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 8 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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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 9 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 82.

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. For example, fresh concrete binds CO2 and may cause low readings, especially in new buildings. Seal the cable opening if necessary.

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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 10 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). If you are wiring a GMW90 series transmitter from above, note that the GM10 module takes up significant space inside the transmitter. To make sure there is enough space to close the transmitter, use a < Ø 5 mm cable, and route it from the left side of the mounting base. See Figure 12 on page 26.

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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1310-044

Figure 11 Wiring from Behind (Recommended)

1310-045

Figure 12 Wiring from Above

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Chapter 3 ________________________________________________________________ Installation

T+

GND -VsCO2+ +Vs

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

RL = 10 kΩ min.

RH+

T+

GND -Vs

+ +Vs

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

RL = 10 kΩ min.

RH+

T+

GND -VsCO2+ +Vs

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

= 10 kΩ min.

Wiring GMW93R/RA

Recommended wiring for long cables:

1402-032

Figure 13 Wiring GMW93R/RA

-Vs terminal is internally connected to GND terminal, so you can also

use the -Vs terminal as common ground. Maximum cable resistance is

2.5 Ω (24V supply, 0 ... 10 V output):

1402-031

Figure 14 Alternate Wiring for GMW93R/RA

Wiring GMW93

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GMW93 is wired in the same way as GMW93R/RA, except for the humidity output that is not present:

1402-030

Figure 15 Wiring GMW93

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T+GND -VsCO

+ +Vs

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

RH+

= 0 ... 600 Ω

T+GND -VsCO

+ +Vs

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

RL = 0 ... 600 Ω

Wiring GMW94R

-Vs terminal is internally connected to GND terminal.

1402-034

Figure 16 Wiring GMW94R

Wiring GMW94

GMW94 is wired in the same way as GMW94R, except for the humidity output that is not present:

1402-033

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Figure 17 Wiring GMW94

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Chapter 3 ________________________________________________________________ Installation

D- -VsD+ +Vs

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

-485

Transmit

D-

-Vs

D+

+Vs

Shld

GND

uil

din

g con

tro

lle

r Tr

ansm

itt

er Transmi

Power su

ppl

D-

D+

+Vs

-Vs

SHIEL

RS-485:

BACne

t or

DBU

master

Connect shield on

contro

ller side

Set RS-485

termination j

umper

D-

-Vs

D+

Shld

GND

D-

-V

D+

+Vs

Wiring GMW95

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 18 Wiring GMW95

Connecting Several Transmitters on Same RS-485 Line

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 Figure 4 on page 17.

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

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Figure 19 Several Transmitters on Same RS-485 Line

1209-015

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+Vs OUT

-Vs

+Vs OUT

-Vs GND

Shared common line

GMW90

CONTROLLER

24 VAC

Supply 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 20 below.

1310-046

Figure 20 Connecting a Common AC Power Supply

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CHAPTER 4

OPERATION

This chapter contains information that is needed to operate the GMW90 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.

The first screen identifies the transmitter and the connected measurement modules, and shows if the transmitter is operating normally (status OK) or if there is an error (status ERROR).

The following screens show configuration information that is relevant to the outputs of the transmitter. Transmitters with digital output show information on the selected communication protocol (BACnet or Modbus). Transmitters with analog output show the analog output mode and scaling.

The last screen shows the currently configured pressure compensation setting.

1310-049, 1310-047

Figure 21 GMW95R Startup Screens

After the startup screens the transmitter shows the measurement screen. It shows the measured parameters and currently active indicators.

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Measurement Screen

Measurement screen shows the measured parameters and currently active indicators.

1310-040

Figure 22 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.

1310-041

Figure 23 Measurement Screen – Problem With Humidity

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 left

MI70 connection indicator. Is shown when an

port.

Bottom left

Alert indicator and error text. Is shown if an

Error Messages on page 73.

The s transmitter supply (not grounded) to the service port. If you connect a device that is grounded to a different potential will affect the even affect the transmitter’s functionality or cause damage to the transmitter.

Indicators on the Display

Service Port

You can connect to the service port on the GMW90 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 CARBOCAP® Hand-Held Carbon Dioxide Meter GM70.

CAUTION

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

MI70 Indicator is connected to the service

error is active. The error message is written after the indicator. See section

ervice port is not galvanically isolated from the rest of the

electronics. Connect only equipment with a floating power

than the transmitter’s power supply, you

accuracy of the transmitter’s analog outputs. You may

Connecting With an MI70 Indicator

When connecting using an MI70 indicator, use the connection cable for GM70 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 a Hand-Held Meter on page 67.

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

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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 37.

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 34 for detailed instructions.

- For more information on using a terminal application, see section Terminal Application Settings on page 35.

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 (requires Windows). 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

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.

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.

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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0807-004

Figure 24 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.

CCO2

Calibrate and adjust CO2 measurement.

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.

TRAF

Show or set CO2 indicator LED parameters.

List of Serial Commands

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.

Some commands, such as CRH, are not available if the required feature is not present on the transmitter, or the command is not relevant.

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 : GMW95R SW version : 1.1.28.5849 SNUM : H2930002

HTM10 module information Software version : 0.11.1 SNUM : H2950107

GM10 module information Software version : 1.1.0 SNUM : J04C030105

Show Transmitter Firmware Version

Use the VERS command to show the transmitter model and firmware version.

VERS<cr>

Example:

>vers GMW95R / 1.1.28

Show Transmitter Serial Number

Use the SNUM command to show the transmitter serial number.

SNUM<cr>

Example:

>snum Serial number : H2930002

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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 : GMW95R_ H2930002 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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Example (display full status):

>status

Device Name : GMW95R Copyright : Copyright Vaisala Oyj 2013 SW Name : XM90 SW Model : XM9x SW version : 1.1.28.5849 Serial number : H2930002 Address : 0

SUB FUNCTIONS

* Serial Port (COM1) * Mode : STOP

* Error Manager (ERR) * Status : NORMAL Active errors : 0

* MCI communication (MCI) * Status : NORMAL

* Measurement module (HTM10) * Status : NORMAL Factory date : 20130720

* Measurement module (GM10) * Status : NORMAL Calibration : 20130819

* BACnet module (BACNET) * BACnet protocol : active MAC : 0 (00h) Device Instance : 6 (00000006h) Name : GMW95R_ H2930002 Location : Location Description : Description MAX_MASTER : 127 (7Fh) Node type : Master Baud setting : Auto

* MODBUS module (MODBUS) * MODBUS protocol : inactive

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CALCS

transmitter model does not measure h

Show Measured Parameters

Use the CALCS command to list the measurement parameters that are supported by the GMW90 series transmitters. CO2, 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 CO2 - Filtered CO2

NOTE

command also lists all humidity parameters, even if your

umidity.

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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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 (basic serial commands from a transmitter model with analog outputs, advanced commands are not enabled):

>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 GMW90 series transmitters you can set the ambient pressure value that is used for pressure compensation of CO2 measurement and calculated humidity 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

If you want to change analog output settings, you must set the transmitter’s configuration DIP switch 8 to position switch is set to

Commands for configuring analog outputs are not available on digital output models (for example, GMW95).

where channel

Analog output channel, 1 ... 3.

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, GMW95).

UNIT [x]<cr>

Example:

>unit m

Unit : Metric

Analog Output Settings

NOTE

DIP, the settings are view-only.

NOTE

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>

Custom. If the

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where channel

Analog output channel, 1 ... 3.

parameter

Parameter that is output on the channel.

dTd dew/frostpoint 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.

Example (show current configuration):

>pass 9000 >amode

Aout 1 range (mA) : 4.00 ... 20.00 (error: 3.60) Aout 2 range (mA) : 4.00 ... 20.00 (error: 3.60) Aout 3 range (mA) : 4.00 ... 20.00 (error: 3.60)

Example (set channel 1 to 0 ... 20 mA output, with error level at 21 mA):

>amode 1 0 20 21

Aout 1 range (mA) : 0.00 ... 20.00 (error: 21.00) >

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>

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)

Available parameters are:

CO2 carbon dioxide RH relative humidity T temperature Tdf dew/frostpoint temperature Td dewpoint temperature Tw wetbulb temperature h enthalpy x mixing ratio a absolute humidity

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where channel

Analog output channel, 1 ... 3.

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 humidity and temperature, 0 for carbon dioxide

The error state is defined using the see section Set Analog Output Mode on page 43.

These settings have no effect on the measurements shown on the display. The dis outside the scaled output range, as long as the measurement is still functioning.

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>

the error state. Range 0 ... 20. Default is 5 for

AMODE command,

NOTE

play will always show the currently measured values, even

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

>pass 9000 >asel

Aout 1 quantity : T (-5.00 ... 55.00 'C) Aout 2 quantity : RH (0.00 ... 100.00 %) Aout 3 quantity : CO2 (0.00 ... 2000.00 ppm)

>amode Aout 1 range ( V) : 0.00 ... 5.00 (error: 5.50) Aout 2 range ( V) : 0.00 ... 5.00 (error: 5.50) Aout 3 range ( V) : 0.00 ... 5.00 (error: 5.50)

>aover Aout 1 clipping : 0.00 % Aout 1 error limit : 5.00 % Aout 2 clipping : 0.00 % Aout 2 error limit : 5.00 % Aout 3 clipping : 0.00 % Aout 3 error limit : 0.00 %

The parameter for channel 3 is CO2, with standard output range 0 ... 5 V and scaling 0 ... 2000 ppm. Error state is 5.5 V, which is set immediately when the measured value is outside the scaled output range.

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Now give the following AOVER command:

>aover 3 5 10 Aout 3 clipping : 5.00 % Aout 3 error limit : 10.00 %

Channel 3 now behaves like this:

- Clipping is now set to 5%, meaning the output is allowed to vary between 0 ... 5.25 V. The channel will output the measurement for 0 ... 2100 ppm, but range 0 ... 5 V remains scaled to 0 ... 2000 ppm.

- Error limit is 10%, which means channel 3 will show the error state (5.5 V) when the measured value is 10% outside the scaled output range. With the settings above, this will happen if the measured temperature is outside range 0 ... 2100 ppm.

- The output will never actually be between 5.25 and 5.5 V because of clipping.

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where

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

out1 out2 out3 CO2 CO2_10 RH T Tdf Td T h x a dTd dew/frostpoint 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.

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. 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 same parameter as analog output channel 3

carbon dioxide level

carbon dioxide level in 10 ppm steps

relative humidity

temperature

dew/frostpoint temperature

dewpoint temperature

w wetbulb temperature enthalpy mixing ratio absolute humidity

Example (show currently displayed parameters):

>pass 9000 >dsel

Quant 1 : RH Quant 2 : T Quant 3 : CO2

Example (change display to only show CO2):

>dsel CO2 OK

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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 = 26.44 %RH T = 24.27 'C CO2 = 449 ppm RH = 26.45 %RH T = 24.27 'C CO2 = 449 ppm RH = 26.43 %RH T = 24.27 'C CO2 = 449 ppm RH = 26.43 %RH T = 24.27 'C CO2 = 449 ppm ...

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>

Output a Reading Once

Use the SEND command to output a single measurement message.

SEND<cr>

Example:

>send

RH = 26.44 %RH T = 24.27 'C CO2 = 449 ppm

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

xxx

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

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 51,

Command to set default format:

>form /

Example of default output (default depends on transmitter model):

RH = 26.44 %RH T = 24.27 'C CO2 = 449 ppm RH = 26.45 %RH T = 24.27 'C CO2 = 449 ppm RH = 26.43 %RH T = 24.27 'C CO2 = 449 ppm RH = 26.43 %RH T = 24.27 'C CO2 = 449 ppm ...

Command to set output format as CO2 and T with Modulus-256 checksum:

>form "CO2 =" U4 4.0 CO2 " T =" U3 3.2 t CS2 \r \n

Output example:

CO2 = 479 ppm T = 24.26 'C E9 CO2 = 477 ppm T = 24.27 'C E8 CO2 = 475 ppm T = 24.27 'C E6 CO2 = 475 ppm T = 24.27 'C E6 ...

Command to set output format as CO2 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 "CO2 =" U4 4.0 CO2 " T =" U3 3.2 t #003

Output example (ASCII codes not visible here):

CO2 = 817 ppm T = 24.26 'CCO2 = 806 ppm T = 24.27 'CCO2 = 800 ppm T = 24.27 'CCO2 = 788 ppm T = 24.27 'CO2 = 781 ppm T = 24.27 'CCO2 = 768 ppm T = 24.27 'C...

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Measured Parameter

Abbreviation in FORM Command

Carbon dioxide

CO2

Relative humidity

Temperature

Dew/frostpoint temperature

Tdf

Dewpoint temperature

Wetbulb temperature

Enthalpy

Mixing ratio

Absolute humidity

Dew/frostpoint 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

NOTE

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

\”

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where delay

Turnaround delay in milliseconds, range 1 … 1000.

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

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

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You must enable advanced serial commands using the command before usi

Before using the Adjustment

Calibration and Adjustment Commands

The following sections describe the calibration and adjustment commands of the GMW90 series. For general information on performing calibration and adjustment on the serial line, see section Adjustment Using a Computer on page 68.

NOTE

PASS 9000

ng the calibration and adjustment commands.

Adjust CO2 Measurement

Use the CCO2 command to adjust the carbon dioxide (CO2) measurement. You can do a 1-point or a 2-point adjustment, or clear the adjustment information from the GM10 module. Note that the factory adjustment will remain intact when user adjustment is cleared.

Remember to let the transmitter stabilize in the reference concentration before entering the adjustment command. Three minutes is typically enough.

CCO2 command, read section Notes for CO2

on page 64.

Show Current CO2 Adjustment

In addition to the user-adjustable offset and gain values, the CCO2 command displays diagnostic information that may be useful to Vaisala Helpdesk if there is a problem with the adjustment.

CCO2<cr>

Example:

>pass 9000 >cco2

User gain : 1.000 User offset : -8.365 CO2 (pre-adjust) : 464.625 30s delta : 13.904 30s stddev : 4.429 Adjustability : CAN_ADJUST

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where

x = The reference CO2 concentration (ppm) that the transmitter should be showing.

where

LO = Adjustment point at low concentration (< 700 ppm).

HI = Adjustment point at high concentration (> 700 ppm).

x = The reference CO2 concentration (ppm) that the transmitter should be showing.

1-point Adjustment of CO2 Measurement

The 1-point adjustment adjusts either offset or gain, depending on the CO2 concentration.

CCO2 [ONE] [x]<cr>

Example:

>pass 9000 >cco2 one 440

2-point Adjustment of CO2 Measurement

The 2-point adjustment adjusts both offset and gain.

CCO2 [LO | HI] [x]<cr>

The 2-point correction is not applied immediately – you must use the CCO2 SAVE command to store your adjustment to the GM10 module. If you have entered user adjustments using the CCO2 command but do not wish to commit them, use the CCO2 CANCEL command.

CCO2 [SAVE | CANCEL]<cr>

Example (two point adjustment, low concentration 0 ppm and high concentration 1000 ppm):

>pass 9000 >cco2 lo 0

OK >cco2 hi 1000 OK

>cco2 save

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Before using the on page 65

Clear User Adjustment of CO2 Measurement

CCO2 [RESET]<cr>

Example:

>pass 9000 >cco2 reset

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.

NOTE

CRH command, read section Notes for RH Adjustment

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 ... 3).

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) Aout 3 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 passcode

Passcode to enable advanced commands is 9000.

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 GMW95R / 1.1.28.5849 / XM90 >

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where

parameter_name

Name of the BACnet parameter to change. Available parameters

Instance

in range

Name

object. String value

Description

Device object.

Location

object.

Password

service.

MAX_MASTER: Max_Master parameter in Device

object. Unsigned

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>

are:

: BACnet instance number. Unsigned value

0 ... 4194302.

: BACnet Object_Name shown in the Device

, no spaces.

: BACnet Description shown in the

String value, no spaces.

Example (show BACnet parameters):

>pass 9000 >bacnet

Instance : 6 (00000006h) Name : GMW95R_ H2930002 Location : Location Description : Description Password : 1234 MAX_MASTER : 127 (007Fh) COV_Interval : 0 Autobaud_Interval : 10

: BACnet Location shown in the Device

String value, no spaces.

: Password used in ReinitializeDevice

String value, no spaces.

value, range 1 ... 127.

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where step1

The yellow LED is lit above this ppm limit (default 800).

step2

The red LED is lit above this ppm limit (default 1200).

step3

The red LED starts blinking above this ppm limit (default 5000).

quant

Quantity that controls the LEDs. Options are:

CO2 NONE – LEDs disabled.

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

>pass 9000 >bacnet description main_hall

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

Set CO2 Indicator LED Parameters

On transmitter models with indicator LEDs, you can use the TRAF command to show or set CO2 indicator LED limits. You can also turn the LEDs off.

TRAF [step1 step2 step3]<cr> TRAF [quant]<cr>

– LEDs controlled by CO2 level (default).

Example (set indicator LED limits to 900, 1500 and 5000 ppm):

>traf 900 1500 5000 Traffic quantity : CO2 Traffic step 1 : 900.00 ppm Traffic step 2 : 1500.00 ppm Traffic step 3 : 5000.00 ppm Traffic threshold : 20.00 ppm >

Example (disable indicator LEDs):

>traf none Traffic quantity : Disabled Traffic step 1 : 800.00 ppm Traffic step 2 : 1200.00 ppm Traffic step 3 : 5000.00 ppm Traffic threshold : 20.00 ppm >

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CHAPTER 5

MAINTENANCE

This chapter provides information that is needed in basic maintenance of the GMW90 series.

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

Calibration and Adjustment

GMW90 series transmitters are fully calibrated as shipped from factory. GMW90 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.

Adjustment Methods

You can adjust the measurements in the following ways:

- 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 a Hand-Held Meter 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 modules. See section Repair Maintenance on page 69.

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Notes for CO2 Adjustment

1-point CO2 adjustment affects either offset or gain, depending on the gas concentration. 1-point adjustment below 700 ppm affects the measurement offset, above 700 ppm it affects the gain.

2-point adjustment will adjust both offset and gain. Choose the adjustment points as follows:

- For first point, use as low concentration as possible. Preferably 0 ppm, must be below 700 ppm.

- For second point, use as high concentration as is relevant for your application. Must be within 700 ... 5000 ppm.

Using Calibration Gas vs. Ambient Gas

You can adjust using a calibration gas with a known concentration (recommended), or adjust using the ambient gas:

- When using a calibration gas, feed the gas to the adjustment inlet at a flow rate of 0.3 ... 0.7 L/min. For location of the inlet, see Figure 2 on page 15. After connecting the gas supply to the field adjustment inlet, wait for at least three minutes for the reading to stabilize.

- When using ambient gas for adjustment, avoid breathing near the transmitter during the adjustment.

Regardless of the CO2 reference used, it is important to let the CO2 measurement stabilize before performing the adjustment. Three minutes is typically enough. Also allow for the stabilization period after adjustment, before verifying the result.

Effect of Temperature on CO2 Measurement

The device is fully temperature compensated using internal temperature measurement.

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Effect of Pressure on CO2 Measurement

Ambient pressure affects the CO2 reading of GMW90. If the ambient pressure differs from the normal pressure 1013 hPa, the transmitter can correct the reading if you enter the correct pressure value to the transmitter using an MI70 indicator or a computer (ENV command).

When adjusting the transmitter, you can also correct your reference concentration (for example, the value on the gas cylinder label) according to the graph below.

1402-025

Figure 25 Effect of Pressure on CO2 Reading

Notes for T Adjustment

Temperature adjustment is always a simple 1-point offset correction.

Notes for RH Adjustment

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

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.

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Adjustment Using Display and Trimmers

CAUTION

NOTE

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 measurement modules. If you replace a module, there is no need to undo previous adjustments.

1. To enter the adjustment screen, open the slide and rotate the CO2,

T, or RH 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.

1111-0 75

Figure 26 Trimmer Centering Screen

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

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

1310-092

Figure 27 Adjustment Screen

3. If you have adjusted the CO2 measurement, wait for three minutes

for the reading to stabilize.

4. Verify the adjusted measurement from measurement screen.

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Adjustment Using a Hand-Held Meter

GMW90 transmitters can be adjusted using Vaisala hand-held meters HM70 (for humidity and temperature) and GM70 (for carbon dioxide and temperature).

1. Connect the GMW90 series transmitter to the MI70 indicator using the connection cable (Vaisala order code 219980). MI70 indicator is the hand-held display device that is included with HM70 and GM70.

2. Depending on the connected devices, you may be prompted to check the currently applied environment settings. Check the settings when prompted.

3. In the Functions menu of the MI70 indicator, select Calibrate XMW9x and press Start.

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

5. Select parameter for adjustment: CO2, RH, or T.

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 GMW90

transmitter to the same reading as the reference that is connected to the other port of the MI70 indicator. This option is not available if no reference for the selected parameter is connected to the MI70 indicator.

- 1-point adjustment: Adjusts the measurement of the GMW90

to a reference value that you specify. Follow the instructions from the MI70 indicator when using this option.

- 2-point adjustment: Adjusts the measurement of the GMW90

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 measurement module (GM10 module for CO2, HTM10 module for RH or T). Only the adjustment for the selected parameter is removed.

8. Complete the selected adjustment by following the instructions from the MI70 indicator.

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Adjustment Using a Computer

For more detailed instructions on using the Vaisala USB cable and a terminal application, see section Connecting With a on page 34.

For a description of the serial commands, see section Calibration and Adjustment Commands on page 53.

1. Connect the GMW90 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 cco2 ct crh ctext cdate

Note that the CRH command is not available if your transmitter does not support humidity measurement.

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 CCO2, CT, and CRH commands to adjust the transmitter’s 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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User calibration settings (adjustment by trimmers or service port) are stored in the module. If you replace the module, you do not need to undo the previously applied correction.

Repair Maintenance

If you cannot restore the measurement accuracy of the transmitter by calibration and adjustment, you can replace the measurement modules inside the transmitter. Measurement modules are the small component boards that are connected to the main transmitter component board. See Figure 4 on page 17.

NOTE

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Replacing the GM10 Module

To replace the module:

1. Disconnect the transmitter body from the mounting base.

2. Locate the GM10 module on the transmitter. The module is a separate component board with a golden cuvette that contains the CARBOCAP® sensor. The module is connected to the main transmitter board with a connector, and held in place by a plastic clip on the other side. See Figure 4 on page 17.

3. Disconnect the module by carefully lifting the module from the connector side. See Figure 28 below.

1311-137

Figure 28 Disconnecting the GM10 Module

4. Take the new GM10 module and place it in the hole for the module so that the plastic clip meets the component board. Then lower the connector end of the module.

5. Push down on the module to secure the connector.

6. Reconnect the transmitter to the mounting base.

7. Verify that there are no errors when the transmitter starts up. If there are, see section Error Messages on page 73.

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Handle the body to the mounting base, avoid touching the module or the HUMICAP

Replacing the HTM10 Module

CAUTION

HTM10 module carefully. When reinstalling the transmitter

sensor.

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 29 Replacing the HTM10 Module

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

there are, see section Error Messages on page 73.

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Problem

Possible Cause

Remedy

Transmitter reports an

serial line.

Multiple causes.

Refer to Table 12 on

Temperature reading

Transmitter is installed in

source or in sunlight.

Relocate transmitter.

Transmitter installed in

Reinstall transmitter with

up.

Transmitter does not

Advanced commands not enabled.

Issue the PASS 9000 command.

Remote echo enabled on

line.

Issue the ECHO OFF

Intermittent connection

terminal.

Issue the command

Cannot see what you are

Serial line echo not

Enable local echo on

page 35.

Unable to complete CO2

Incorrect reference gas flow.

Retry calibration after

Breathing on transmitter

as reference.

Measurement not

attempting adjustment.

Incorrect calibration gas

2-point calibration.

CHAPTER 6

TROUBLESHOOTING

This chapter describes possible problems, their probable causes and remedies, and provides contact information for technical support.

Problem Situations

Table 11 Troubleshooting Table

error on the display or

shown by the transmitter is too high.

recognize a valid serial command, responds with message

FAIL 1: Unknown command

typing on the serial line.

an unsuitable location, for example, near a heat

improper orientation.

the transmitter, causing collisions on the RS-485

problem between the transmitter and your

enabled.

page 73.

See section Selecting Location on page 24.

the arrow on the mounting base pointing

command to disable remote echo.

again.

your terminal. See section Application Settings

Terminal

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adjustment successfully.

while using ambient gas

stabilized before

concentration(s) used for

reading section Calibration and Adjustment on page 63.

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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

GM10 01

Communication

GM10 module.

Check that the GM10 module

and reconnect.

GM10 03

Internal problem

- Restart the transmitter.

GM10 04

GM10 10

GM10 11

GM10 12

Dirty or damaged GM10 module.

Replace module.

Internal 1

Internal problem

- Restart the transmitter.

Internal 2

Internal 3

Internal 4

Error Messages

Table 12 Error Messages

problem with

humidity measurement.

with HTM10 module.

problem with

with GM10 module.

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.

sits firmly in place. Remove

- Replace the module if unable to remove the problem.

with the transmitter.

- 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 42: 0: ERROR:OFF: HTM10 06 Device Descriptor mismatch 43: 0: CRITICAL:OFF: Factory parameter memory not consistent 79: 0: ERROR:OFF: GM10 01 Continuous communication failure 81: 0: CRITICAL:OFF: GM10 03 FLASH Corrupted 82: 0: CRITICAL:OFF: GM10 04 MEM I 28: 0: ERROR:OFF: GM10 10 Device Descriptor mismatch 88: 0: ERROR:OFF: GM10 11 Module uncalibrated 89: 0: ERROR:OFF: GM10 12 CO2 measurement

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You can also use the the err measured range. See section page

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

- For 0 ... 20 mA output, the default error level is 21 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 43.

NOTE

AOVER command to configure a channel to go to

or level if the measured parameter is sufficiently far out of the

Set Output Clipping and Error Limit on

45.

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Non-Metric

0...20m

Custom

Metric

4..20m

2 3 4

5 6

Non-Metric

Custom

Metric

2 3 4

5 6

GMW93

GMW94

0...5V

0...10V

2 3 4

5 6

2 3

5 6

2 3 4

5 6

Modbus

BACnet

Parity Even

A B C

Parity None

Baud Rate Metric

Non-Metric

Reverting to Factory Settings

GMW90 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 adjustments are also cleared from the GM10 and HTM10 measurement modules. The factory calibration will remain.

Reverting to Factory Settings Using DIP Switches

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 30 below: move all switches up.

Digital output models: Set the DIP switches in the leftmost DIP switch bank as shown in Figure 31 below. Do not move the switches in the other bank.

1204-040

Figure 30 DIP Switch Factory Reset (GMW93/94)

76 ___________________________________________________________________ M211659EN-B

Figure 31 DIP Switch Factory Reset (GMW95)

1209-028

Page 79

Chapter 6 ____________________________________________________________ Troubleshooting

If you are restoring the factory configuration on a factory customized analog output model (GMW90 or GMW90R), leave DIP number 8 to the

Custom

overwritted by the default settings at transmitter reset. For more information about this, see section Configuration

After using the

RESET

4. Reconnect the transmitter cover to the mounting base so the

transmitter 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. If you are

restoring the factory configuration on a factory customized analog output model (GMW90 or GMW90R), leave DIP number 8 to the Custom position to avoid the custom configuration from being overwritted by the default settings at transmitter startup. For more information about this, see section Changing Between DIP and Custom Configuration on page 21.

7. Reconnect the transmitter cover to the mounting base. Check the

startup screens to verify the configuration.

Reverting to Factory Settings Using Service Port

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

FRESTORE<cr>

NOTE

position to avoid the custom configuration from being

on page 21.

NOTE

command.

Example:

>pass 9000 >frestore

Restoring HTM10 factory parameters HTM10 factory parameters restored Restoring GM10 factory parameters GM10 factory parameters restored Restoring GMW95R factory settings 110/110 parameters restored >reset Resetting GMW95R / 1.1.28.5849 / XM90 >

VAISALA ________________________________________________________________________ 77

FRESTORE command, reset the transmitter using the

Changing Between DIP and Custom

Page 80

User's Guide _______________________________________________________________________

Technical Support

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

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

information:

- Name and model of the product in question.

- Serial number of the product.

- Name and location of the installation site.

- Name and contact information of a technically competent person who

can provide further information on the problem.

Product Returns

If the product must be returned for service, see www.vaisala.com/returns. Depending on the transmitter condition, Vaisala may replace measurement modules or the entire transmitter.

For contact information of Vaisala Service Centers, see

www.vaisala.com/servicecenters.

78 ___________________________________________________________________ M211659EN-B

Page 81

Chapter 7 _____________________________________________________________ Technical Data

Property

Description / Value

Carbon dioxide

Measurement range

0 … 5000 ppm

Accuracy

+20 … +30 °C (+ 68 … + 86 °F)

± (30 ppm + 2 % of reading)

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

± (35 ppm + 2.7 % of reading)

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

± (45 ppm + 3.8 % of reading)

Stability in typical HVAC applications

Total accuracy at room temperature

including 5 years drift*

Carbon dioxide sensor

Vaisala CARBOCAP® GM10

Temperature

Measurement range

-5 ... +55 °C (+23 ... +131 ºF)

Accuracy

+20 ... +30 °C (+68 ... +86 °F)

±0.5 °C (± 0.9 °F)

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

±0.6 °C (± 1.08 °F)

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

±0.8 °C (± 1.44 °F)

Temperature sensor

Digital temperature sensor

Relative humidity

Measurement range

0 ... 95 %RH, non-condensing

Accuracy

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

0 ... 60 %RH

±2.5 %RH

60 ...80 %RH

±3.0 %RH

80 ... 95 %RH

±4.0 %RH

Temperature range -5 ... +10 °C,

+104 ... +131°F)

0 ... 60 %RH

±3.5 %RH

60 ...80 %RH

±4.0 %RH

80 ... 95 %RH

±5.0 %RH

Stability in typical HVAC applications

±0.5 %RH/year

Humidity sensor

Vaisala HUMICAP® 180R

CHAPTER 7

TECHNICAL DATA

This chapter provides the technical data of the GMW90 series transmitters.

Specifications

Table 13 Performance

+40 ... + 55 °C (+23 ... +50 °F,

±75 ppm at 600 and 1000 ppm

VAISALA ________________________________________________________________________ 79

*Complies with CEC-400-2008-001-CMF

Page 82

User's Guide _______________________________________________________________________

Property

Description / Value

Operating temperature range

-5 ... +55 °C (+23 ... +131 °F)

Operating humidity range

0 … 95 %RH Dewpoint <30 °C (+86 °F)

Storage temperature range

-30 ... +60 °C (-22 ... +140 °F)

Electromagnetic compliance

EN61326-1, Industrial Environment

Property

Description / Value

Current output models

Outputs

0/4 … 20 mA 2 and 3 channel models available

Loop resistance

0 … 600 Ω

Supply voltage

18 … 35 VDC 24 VAC ± 20% 50/60 Hz

Max. power consumption

<2 W pulsed (outputs 3×21mA)

Typical power consumption

<1.2 W pulsed (outputs 3×12 mA)

Voltage output models

Outputs

0 … 5/10 V 2 and 3 channel models available

Load resistance

10 kΩ min.

Supply voltage

18 … 35 VDC 24 VAC ± 20% 50/60 Hz

Power consumption

<1 W pulsed (output load 3×10 kΩ)

Digital output models

Supply voltage

18 ... 35 VDC 24 VAC ±20 % 50/60 Hz

Max. power consumption (with 120 Ω termination)

<1.5 W pulsed

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

Property

Description / Value

IP class

IP30

Standard housing color

White (RAL9003*)

Housing material

ABS/PC, UL-V0 approved

Output connector

Screw terminals max. wire size 2 mm2 (AWG14)

Service port connector

4-pin M8

Weight

163 g

Table 14 Operating Environment

Table 15 Inputs and Outputs

Table 16 Mechanics

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

80 ___________________________________________________________________ M211659EN-B

Page 83

Chapter 7 _____________________________________________________________ Technical Data

Information on spare parts, accessories, and calibration products is

Description

Order Code

Carbon dioxide measurement module (for all models)

GM10SP

Temperature measurement module (for CO2+T models)

TM10SP

Humidity and temperature measurement module (CO2+T+RH models)

HTM10SP

Decorative cover set (10 pcs.)

236285

Connection cable for HM70/GM70 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

Spare Parts and Accessories

available online at www.vaisala.com and store.vaisala.com.

Table 17 GMW90 Series Spare Parts and Accessories

VAISALA ________________________________________________________________________ 81

Page 84

User's Guide _______________________________________________________________________

132.7

Ø 4.4

33.5

30.5

29.8

59.5

Dimensions in mm

1111-061

Figure 32 GMW90 Series Dimensions

1310-037

Figure 33 Dimensions of the Mounting Base

82 ___________________________________________________________________ M211659EN-B

Page 85

Appendix A _________________________________________________________ BACnet Reference

For more in ANSI/ASHRAE standard 135 Protocol for Building Automation and Control Networks.

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

Vendor Name:

Vaisala Oyj

Product Name:

XMW90

Product Model Numbers:

GMW95 | GMW95R

Applications Software Version:

1.1.28 and later

Firmware Version:

1.1.0.0 and later

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 94.

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 GMW90 series digital transmitters.

NOTE

formation on BACnet, refer to addendum D of the

-2001: BACnet®—A Data Communication

NOTE

Configuration of Digital Output Models on page 21.

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):

Transmitter Models and Objects

The availability of BACnet objects depends on the transmitter model. The following objects are present on all GMW90 series models:

- Device object

- Carbon dioxide object

- Temperature object

The following additional objects are present on models that include relative humidity measurement (for example, GMW95R):

- Relative humidity object

- Calculated humidity objects

- Operation pressure object

- Operation altitude object

VAISALA ________________________________________________________________________ 85

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User's Guide _______________________________________________________________________

Property

Data type (Application

Writable

nce Code)

Value or Initial Value

Persistence

Object_Identifier

BACnetObjectIdentifier

Y (R)

02 00 00 00 (hex)

Instance = xxxxxxx UV

Nonvolatile

Object_Name

CharacterString[50]

Y (R)

"xMW9xx_xxxxxxxx" UV

Nonvolatile

Object_Type

BACnetObjectType (ENUMERATED)

N (R)

8 (Device Object)

Fixed

System_Status

BACnetDeviceStatus (ENUMERATED)

N (R)

0 (Operational)

Volatile Vendor_Name

Character String

N (R)

"Vaisala Oyj"

Fixed

Vendor_Identifier

Unsigned16

N (R)

339

Fixed

Model_Name

CharacterString

N (R)

Product model. For example, “GMW95”

Nonvolatile

Firmware_Revision

CharacterString

N (R)

X.X.X.X (BACnet interface)

Fixed

Application_Software_R evision

CharacterString

N (R)

X.X.X.X

Fixed Location

Character String[50]

Y (O)

“Location”

Nonvolatile

Description

Character String[50]

Y (O)

“Description”

Nonvolatile

Protocol_Version

Unsigned

N (R)

Fixed

Protocol_Revision

Unsigned

N (R)

Fixed

Protocol_Services

BACnetProtocolServices

N (R)

Read Property

Who-Has

Fixed

Protocol_Object_Types

BACnetObjectTypesSupp

N (R)

Analog Input

Device

Fixed

Object_List

BACnetARRAY[N]of

N (R)

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

Type)

Supported (BIT STRING)

(Conforma

Object Type = 8,

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

_Supported

86 ___________________________________________________________________ M211659EN-B

orted (BIT STRING)

BACnetObjectIdentifier

Analog Value

AI1 (Carbon Dioxide) 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)

Page 89

Appendix A _________________________________________________________ BACnet Reference

Property

Data type (Application

Writable

nce Code)

Value or Initial Value

Persistence

Max_APDU_Length_Ac cepted

Unsigned16

N (R)

244

Fixed Max_Master

Unsigned16 (1..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

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, transmitter model GMW95 with serial number G1234567 receives the default object name "GMW95_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 61.

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

VAISALA ________________________________________________________________________ 87

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User's Guide _______________________________________________________________________

Property

Data type (Application Type)

Writable (Conformance Code)

Value or Initial Value

Persistence

Object_Identifier

BACnetObjectIdentifier

No (R)

00 00 00 01 (hex)

Instance = 1

Nonvolatile

Object_Name

CharacterString

No (R)

"CO2"

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)

"Carbon Dioxide"

Nonvolatile

Units

BACnetEngineeringUnits (ENUMERATED)

No (R)

96 (parts-per-million)

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)

2400 (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 BACnet1)

State

Cause

0 NO_FAULT_DETECTED

1 NO_SENSOR

No contact to measurement module

2 OVER_RANGE

CO2 level over BAC_CO2_MAX_VALUE

3 UNDER_RANGE

CO2 level under BAC_CO2_MIN_VALUE

7 UNRELIABLE_OTHER

Other measurement error

State

Cause

0 NORMAL

Reliability equals 0 (NO FAULT DETECTED)

1 FAULT

Reliability not 0

Carbon Dioxide Object

Table 19 Carbon Dioxide Object Properties

Object Type = 0,

Table 20 Status Flags

Table 21 Reliability

Table 22 Event State

88 ___________________________________________________________________ M211659EN-B

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Appendix A _________________________________________________________ BACnet Reference

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 23 Temperature Object Properties

(Application Type)

(ENUMERATED)

(Conformance

Object Type = 0,

Possible units are

Table 24 Status Flags

Table 25 Reliability

Table 26 Event State

VAISALA ________________________________________________________________________ 89

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User's Guide _______________________________________________________________________

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

Table 27 Relative Humidity Object Properties

(Application Type)

Table 28 Status Flags

(Conformance

Object Type = 0,

Table 29 Reliability

Table 30 Event State

90 ___________________________________________________________________ M211659EN-B

Page 93

Appendix A _________________________________________________________ BACnet Reference

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 31 above.

Nonvolatile

Object_Name

CharacterString

No (R)

See Table 31 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

Table 31 Calculated Humidity Objects

Table 32 Calculated Humidity Object Properties

(Application Type)

Table 33 Status Flags

(Conformance

VAISALA ________________________________________________________________________ 91

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User's Guide _______________________________________________________________________

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

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

Table 34 Reliability

Table 35 Event State

Operation Pressure 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 36 Operation Pressure Object Properties

Table 37 Status Flags

Object Type = 2,

92 ___________________________________________________________________ M211659EN-B

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Appendix A _________________________________________________________ BACnet Reference

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

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

ingly.

Table 38 Operation Altitude Object Parameters

Object Type = 2,

Table 39 Status Flags

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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 40 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 40 BACnet Smart Sensor BIBBs Support

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Appendix A _________________________________________________________ BACnet Reference

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

Table 41 BACnet Standard Application Services Support

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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

CO2

0001…0002

0257 (×1)

ppm

6401…6402

6657 (×1)

ppm

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 GMW90 series digital transmitters.

NOTE

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

Serial line settings such as baud rate are configured using DIP switches. See section Configuration of Digital Output Models on page 21.

Table 42 Modbus Functions Supported by GMW90

Table 43 GMW90 Modbus Measurement Data Registers

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

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Appendix B _________________________________________________________ Modbus Reference

A complete 32 single Modbus transaction.

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

GM10 module error

CO2 measurement error

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

Elevation is linked to pressure according to the following equation:

p = 101325 (1

where means that changing altitude will also change pressure and vice versa.

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 GMW90 registers.

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

NOTE

-bit floating point value should be read and written in a

Table 44 GMW90 Modbus Status Registers (Read-only)

Table 45 GMW90 Modbus Error Code Bits

Table 46 GMW90 Modbus Configuration Parameter Registers

NOTE

- 2.25577 10-5 h)

p is pressure in Pa and h is altitude above sea level in m. This

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5.25588

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Object Id

Object Name

Description

0x00

VendorName

“Vaisala”

0x01

ProductCode

Transmitter model (for example, “GMW95”)

0x02

MajorMinorVersion

Software version (for example, “1.0.0”)

0x03

VendorUrl

“http://www.vaisala.com/”

0x04

ProductName

GMW 90

0x80

SerialNumber

Serial number (e.g. “H0710040”)

0x81

CalibrationDate

Date of the last calibration (for example, “2012-08-07”, 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 47 GMW90 Modbus Device Identification

Table 48 GMW90 Modbus Exception Responses

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Vaisala GMW90 User Manual

Table of Contents

GENERAL INFORMATION

About This Manual

Contents of This Manual

Version Information

Related Manuals

Documentation Conventions

Safety

ESD Protection

Recycling

Regulatory Compliances

Patent Notice

Trademarks

Software License

Warranty

PRODUCT OVERVIEW

Introduction to GMW90 Series

GMW90 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

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 GMW93R/RA

Wiring GMW93

Wiring GMW94R

Wiring GMW94

Wiring GMW95

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

Calibration and Adjustment Commands

Adjust CO2 Measurement

Show Current CO2 Adjustment