Vaisala PTU300 User manual

USER'S GUIDE
Vaisala Combined Pressure, Humidity,
and Temperature Transmitte
r
PTU300
M210796EN-F

PUBLISHED BY
Vaisala Oyj Phone (int.): [phone]
P.O. Box 26 Fax: [phone]
FI-00421 Helsinki
Finland
Visit our Internet pages at http://www.vaisala.com/
© Vaisala 2011
No part of this manual may be reproduced in any form or by any means, electronic or
mechanical (including photocopying), nor may its contents be communicated to a third
party without prior written permission of the copyright holder.
The contents are subject to change without prior notice.
Please observe that this manual does not create any legally binding obligations for
Vaisala towards the customer or end user. All legally binding commitments and
agreements are included exclusively in the applicable supply contract or Conditions of
Sale.

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Table of Contents
CHAPTER 1
GENERAL INFORMATION..........................................................................11
About This Manual.................................................................11
Contents of This Manual.....................................................11
Version Information.............................................................12
Related Manuals.................................................................12
Documentation Conventions...............................................12
Safety.......................................................................................13
ESD Protection .......................................................................13
Recycling ................................................................................14
Regulatory Compliances.......................................................14
EU Declaration of Conformity..............................................14
DNV Type Approval ............................................................15
Transmitters with LAN or WLAN Interface..........................15
Transmitters with WLAN Interface ......................................16
Patent Notice ..........................................................................16
Trademarks.............................................................................16
License Agreement................................................................17
Warranty..................................................................................17
CHAPTER 2
PRODUCT OVERVIEW................................................................................19
Introduction to PTU300..........................................................19
Basic Features and Options................................................20
New and Improved Features Compared to PTU200 .....20
Pressure Measurement.......................................................21
Structure of the Transmitter ................................................22
Probe Options .....................................................................24
Warmed Probe PTU307......................................................26
CHAPTER 3
INSTALLATION............................................................................................27
Mounting the Housing ...........................................................27
Standard Mounting without Mounting Plate........................27
Wall Mounting with Wall Mounting Kit.................................28
Mounting with DIN Rail Installation Kit................................30
Pole Installation with Installation Kit for Pole or Pipeline ....31
Mounting Rain Shield with Installation Kit...........................33
Panel Mounting Frame........................................................33
Wiring ......................................................................................35
Cable Bushings...................................................................35
Grounding the Cables.........................................................36
Grounding the Transmitter Housing....................................37

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Alternate Wiring Systems......................................................37
Signal and Power Supply Wiring.........................................38
8-Pin Connector...................................................................39
D-9 Connector.....................................................................40
Connections to a 24 VAC Power Supply.............................41
Probe Mounting ......................................................................42
General Instructions for Probes with Cable.........................42
PTU303 for General Use.....................................................44
PTU307 for High Humidities................................................45
Temperature Probe (Optional) ............................................45
Optional Modules ...................................................................46
Power Supply Module .........................................................46
Installation......................................................................47
Warnings ........................................................................48
Galvanic Isolation for Output...............................................51
Third Analog Output ............................................................51
Installation and Wiring....................................................52
Relays..................................................................................53
Installation and Wiring....................................................53
Selecting the Activation State of the Relay....................53
RS-422/485 Interface ..........................................................55
Installation and Wiring....................................................56
LAN Interface.......................................................................59
WLAN Interface...................................................................60
Attaching the WLAN Antenna ........................................61
Data Logger Module............................................................62
CHAPTER 4
OPERATION.................................................................................................65
Getting Started........................................................................65
Display/Keypad (Optional).....................................................66
Basic Display.......................................................................66
Pressure 3h Trend and Tendency Reading........................67
Using Basic Display........................................................67
Pressure tendency graphics and codes.........................67
Using Serial Line............................................................69
Missing Trend.................................................................69
Graphic History....................................................................70
Information Display..............................................................72
Menus and Navigation.........................................................73
Changing the Language.................................................73
Rounding Setting............................................................74
Display Backlight Setting................................................74
Display Contrast Setting.................................................74
Keypad Lock (Keyguard)................................................75
Menu PIN Lock...............................................................75
Factory Settings .............................................................75
Display Alarms.....................................................................76
Configuring a Display Alarm...........................................77
MI70 Link Program for Data Handling ..................................79
Serial Line Communication...................................................80
User Port Connection..........................................................81
User Port Operating Modes............................................81

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Service Port Connection .....................................................82
Connection Cables.........................................................82
Installing the Driver for the USB Cable..........................82
Using the Service Port...................................................83
LAN Communication..............................................................83
IP Configuration ..................................................................84
Using Display/Keypad....................................................85
Using Serial Line............................................................86
Wireless LAN Configuration................................................87
Using Display/Keypad....................................................88
Using Serial Line............................................................89
Communication Protocol.....................................................90
Web Configuration for LAN and WLAN...............................90
Terminal Program Settings .................................................91
Opening a Serial/USB connection .................................92
Opening a Telnet Session (LAN/WLAN)........................93
List of Serial Commands.....................................................94
Getting Measurement Message from Serial Line................97
Starting Continuous Outputting......................................97
R................................................................................97
Stopping Continuous Outputting....................................97
S................................................................................97
Outputting Reading Once ..............................................97
SEND........................................................................97
Assign an Alias for the SEND Command ......................98
Communicating with a Transmitter in POLL Mode.............98
OPEN.............................................................................98
CLOSE...........................................................................98
Formatting Serial Line Message .........................................99
FTIME and FDATE.........................................................99
General Settings...................................................................100
Changing Quantities and Units .........................................100
Using Display/Keypad..................................................100
Using Serial Line..........................................................101
FORM......................................................................101
UNIT........................................................................103
Date and Time...................................................................104
Using Display/Keypad..................................................104
Using Serial Line..........................................................104
NMEA Data Format...........................................................105
GPS Commands...............................................................106
Pressure Compensation Settings.......................................107
Using Display/Keypad.......................................................107
Using Serial Line...............................................................108
PRES and XPRES.......................................................108
PFIX.............................................................................109
PSTAB .........................................................................109
Pressure Average Calculation...........................................110
Pressure.......................................................................110
Relative Humidity (RH) and Temperature (T)
Filtering ........................................................................111
FILT..............................................................................111
Device Information............................................................112
Using Serial Line..........................................................113

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?....................................................................................113
LIGHT...........................................................................114
HELP............................................................................114
ERRS............................................................................115
VERS............................................................................115
Resetting Transmitter using Serial Line ............................115
RESET..........................................................................115
Locking Menu/Keypad using Serial Line...........................116
LOCK............................................................................116
Serial Output Settings..........................................................117
Using Display/Keypad .......................................................117
Using Serial Line ...............................................................118
SERI.............................................................................118
SMODE ........................................................................119
ADDR ...........................................................................119
INTV .............................................................................120
SDELAY .......................................................................120
ECHO...........................................................................120
Data Recording.....................................................................121
Selecting Data Recording Quantities ................................121
DSEL............................................................................121
View Recorded Data .........................................................122
DIR ...............................................................................122
PLAY ............................................................................124
Deleting the Recorded Files..............................................125
UNDELETE..................................................................125
Analog Output Settings .......................................................125
Changing Output Mode and Range...................................125
Analog Output Quantities..................................................127
AMODE/ASEL..............................................................128
Analog Output Tests..........................................................129
ITEST ...........................................................................129
Analog Output Fault Indication Setting..............................130
AERR............................................................................130
Operation of Relays..............................................................131
Quantity for Relay Output..................................................131
Measurement-Based Relay Output Modes.......................131
Relay Setpoints............................................................131
Hysteresis.....................................................................133
Relay Indicating Transmitter Error Status .........................133
Enabling/Disabling Relays.................................................135
Setting Relay Outputs .......................................................135
RSEL............................................................................137
Testing Operation Of Relays.............................................138
RTEST..........................................................................139
Sensor Functions .................................................................139
Chemical Purge (Optional)................................................139
Automatic Chemical Purge (Interval Purge).................140
Manual Chemical Purge...............................................140
Chemical Purge in Power Up.......................................141
Starting and Configuring Chemical Purge.........................141
Using Buttons On Motherboard....................................141
Using Display/Keypad (Optional).................................141
Using Serial Line..........................................................142

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PURGE...................................................................142
PUR.........................................................................142
Setting Sensor Heating.....................................................144
Setting Humidity Sensor Heating using
Display/Keypad............................................................144
Using Serial Line..........................................................145
XHEAT....................................................................145
CHAPTER 5
MODBUS....................................................................................................147
Overview of MODBUS Protocol Support ...........................147
Taking MODBUS into Use ................................................148
Enabling Serial MODBUS ....................................................149
Using Display/Keypad (Optional)......................................149
Using Serial Line...............................................................149
Enabling Ethernet MODBUS ...............................................151
Using Display/Keypad (Optional)......................................151
Using Serial Line...............................................................152
Diagnostic MODBUS Counters...........................................154
Viewing Counters using Display/Keypad..........................154
Viewing Counters using Service Port................................154
Disabling MODBUS..............................................................155
CHAPTER 6
MAINTENANCE .........................................................................................157
Periodic Maintenance ..........................................................157
Cleaning............................................................................157
Changing the Probe Filter.................................................157
Changing the Sensor...........................................................158
Error States.......................................................................159
Technical Support................................................................161
Product Returns...................................................................161
CHAPTER 7
CALIBRATION AND ADJUSTMENT.........................................................163
Pressure................................................................................163
Opening and Closing the Adjustment Mode .....................164
Pressure Adjustment...........................................................165
One-Point Adjustment Using Display/Keypad...................165
One-Point Adjustment using Serial Line...........................166
LCI...........................................................................166
LC............................................................................166
MPCI.......................................................................167
MPC........................................................................168
Relative Humidity Adjustment ............................................169
Using Push Buttons...........................................................169
Using Display/Keypad.......................................................170
Using Serial Line...............................................................171
CRH .............................................................................171
Relative Humidity Adjustment After Sensor Change .......173

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Using Display/Keypad .......................................................173
Using Serial Line ...............................................................173
FCRH............................................................................173
Temperature Adjustment.....................................................174
Using Display/Keypad .......................................................174
Using Serial Line ...............................................................175
Analog Output Adjustment (Ch1 and Ch2)........................176
Using Display/Keypad .......................................................176
Using Serial Line ...............................................................176
ACAL............................................................................176
Feeding Adjustment Information........................................177
Using Display/Keypad .......................................................177
Using Serial Line ...............................................................177
CTEXT..........................................................................177
CDATE .........................................................................177
CHAPTER 8
TECHNICAL DATA ....................................................................................179
Specifications .......................................................................179
Performance......................................................................179
Barometric Pressure.....................................................179
Relative Humidity .........................................................180
Temperature (+ Operating Pressure Ranges) .............181
Optional Temperature Probe........................................181
Calculated Variables ....................................................182
Accuracies of Calculated Variables...................................182
Accuracy of Dewpoint Temperature °C........................182
Accuracy of Mixing Ratio g/kg (Ambient Pressure
1013 mbar)...................................................................183
Accuracy of Wet Bulb Temperature °C........................183
Accuracy of Absolute Humidity g/m³............................183
Dewpoint Temperature (PTU307 Warmed Probe Option) 184
Operating Conditions....................................................184
Inputs and Outputs.......................................................185
Mechanics ....................................................................186
Transmitter Weight.......................................................186
Technical Specifications of Optional Modules...................186
Power Supply Module ..................................................186
Analog Output Module..................................................187
Relay Module ...............................................................187
RS-485 Module ............................................................187
LAN Interface Module...................................................188
WLAN Interface Module...............................................188
Data Logger Module.....................................................188
Options and Accessories ....................................................189
Dimensions (mm/inch).........................................................190
PTU301 .............................................................................192
PTU303 .............................................................................193
PTU307 .............................................................................193
Temperature Probe ...........................................................193

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APPENDIX A
PROBE INSTALLATION KITS AND INSTALLATION EXAMPLES.........195
Duct installation kits (for PTU303/307)...............................195
Duct Installation Kit for Temperature Probe
(for PTU307)..........................................................................196
Pressure Tight Swagelok Installation Kits
(For PTU307).........................................................................197
RH Probe Installation........................................................197
Temperature Probe Installation.........................................198
Examples of Vapor Tight Installations with
Cable Gland ..........................................................................199
RH-Probe Installations (for PTU303/307).........................199
T- Probe Installations (PTU307)........................................201
Meteorological Installation Kit (for PTU307)......................202
APPENDIX B
CALCULATION FORMULAS ....................................................................203
APPENDIX C
MODBUS REFERENCE.............................................................................207
Function Codes....................................................................207
Register Map.........................................................................208
Data Encoding...................................................................208
32-Bit Floating Point Format........................................208
16-Bit Integer Format...................................................209
Measurement Data (Read-Only).......................................210
Status Registers (Read-Only)...........................................211
Configuration Registers.....................................................211
Exception Status Outputs ...................................................212
Diagnostic Sub-Functions...................................................213
Device Identification Objects..............................................214
Exception Responses..........................................................214

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List of Figures
Figure 1 Transmitter Body ......................................................................22
Figure 2 Inside the Transmitter...............................................................23
Figure 3 PTU301 Fixed Probe................................................................24
Figure 4 PTU301 Short Cable Probe......................................................24
Figure 5 Probe Options...........................................................................25
Figure 6 Standard Mounting...................................................................27
Figure 7 Mounting with Wall Mounting Kit ..............................................28
Figure 8 Dimensions of the Plastic Mounting Plate (mm/inch)...............28
Figure 9 Dimensions of the Probe Holder Plate (mm/inch)....................29
Figure 10 Mounting with DIN Rail Installation Kit .....................................30
Figure 11 Vertical Pole..............................................................................31
Figure 12 Horizontal Pole .........................................................................31
Figure 13 Mounting with Metal Wall Mounting Plate ................................32
Figure 14 Dimensions of Metal Mounting Plate (mm/inch).......................32
Figure 15 Mounting Rain Shield with Installation Kit ................................33
Figure 16 Panel Mounting Frame.............................................................34
Figure 17 Panel Mounting Dimensions (mm/inch)....................................34
Figure 18 Cable Bushings.........................................................................35
Figure 19 Grounding the Screen of Electrical Cable................................36
Figure 20 Screw Terminal Block on Motherboard ....................................38
Figure 21 Pinout of the Optional 8-Pin Connector....................................39
Figure 22 Wiring of Optional D-9 Connector.............................................40
Figure 23 Connections to 24 VAC Power Supply.....................................41
Figure 24 Measurement Error at 100 %RH..............................................42
Figure 25 Horizontal Mounting of Probe...................................................43
Figure 26 Vertical Mounting of Probe.......................................................43
Figure 27 Power Supply Module...............................................................46
Figure 28 Galvanic Output Isolation Module.............................................51
Figure 29 Third Analog Output .................................................................51
Figure 30 Third Analog Output Selection..................................................52
Figure 31 Relay Module............................................................................54
Figure 32 RS-485 Module.........................................................................55
Figure 33 4-Wire RS-485 Bus...................................................................57
Figure 34 2-Wire RS-485 Bus...................................................................58
Figure 35 LAN Interface Module...............................................................60
Figure 36 WLAN Interface Module ...........................................................61
Figure 37 Data Logger Module.................................................................63
Figure 38 Basic Display............................................................................66
Figure 39 Basic Display with P3H Trend and Tendency............................67
Figure 40 Pressure Tendency Description ...............................................68
Figure 41 Graphical Display .....................................................................70
Figure 42 Graphical Display with Data Logger.........................................71
Figure 43 Device Information on Display..................................................72
Figure 44 Main Menu................................................................................73
Figure 45 Alarm Limits Shown on Graph Screen .....................................76
Figure 46 Display Alarm Active.................................................................77
Figure 47 Display Alarms..........................................................................77
Figure 48 Modifying an Alarm Limit..........................................................78
Figure 49 Service Port Connector and User Port Terminal
on Motherboard ........................................................................80
Figure 50 Connection Example between PC Serial Port and User Port ..81

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Figure 51 Network Interface Menu...........................................................85
Figure 52 IP Configuration Menu..............................................................85
Figure 53 Wireless LAN Settings..............................................................88
Figure 54 Entering Network SSID ............................................................88
Figure 55 Selecting the Wireless Network Type ......................................88
Figure 56 Web Configuration Interface for WLAN....................................91
Figure 57 Opening a Serial Connection ...................................................92
Figure 58 Opening a Telnet Connection ..................................................93
Figure 59 Current/Voltage Switches of Output Modules........................126
Figure 60 Relay Output Modes...............................................................132
Figure 61 FAULT/ONLINE STATUS Relay Output Modes....................134
Figure 62 Relay Indicators on Display....................................................136
Figure 63 Decrease of Sensor Gain.......................................................140
Figure 64 Purge Buttons on Motherboard..............................................141
Figure 65 Chemical Purge Settings........................................................141
Figure 66 Performing Chemical Purge...................................................142
Figure 67 Serial Interface Settings.........................................................149
Figure 68 IP Configuration......................................................................151
Figure 69 Wireless LAN Settings............................................................151
Figure 70 Communication Protocol........................................................152
Figure 71 MODBUS Counters................................................................154
Figure 72 Changing the Sensor..............................................................158
Figure 73 Error Indicator and Error Message.........................................159
Figure 74 Adjustment and Purge Buttons ..............................................164
Figure 75 Adjustment Menu ...................................................................165
Figure 76 Selecting Point 1 Reference Type..........................................170
Figure 77 Accuracy over Temperature Range.......................................181
Figure 78 Accuracy in Dewpoint Measurement......................................184
Figure 79 Transmitter Body Dimensions................................................190
Figure 80 WLAN Antenna Dimensions...................................................191
Figure 81 PTU301 Fixed Probe Dimensions..........................................192
Figure 82 PTU301 Short Cable Probe Dimensions................................192
Figure 83 PTU303 Probe Dimensions....................................................193
Figure 84 PTU307 Probe Dimensions....................................................193
Figure 85 Optional Temperature Probe Dimensions..............................193
Figure 86 Duct Mounting Installation Kit.................................................195
Figure 87 Duct Mounting Installation Kit for T-Probe .............................196
Figure 88 Swagelok Installation Kit for RH-probe ..................................197
Figure 89 Swagelok Installation Kit for T-Probe.....................................198
Figure 90 Cable Installation with Cable Gland.......................................199
Figure 91 Probe Installation with Cable Gland.......................................200
Figure 92 Vapor Tight Installation...........................................................201
Figure 93 Wall Mounting Installation ......................................................201
Figure 94 Meteorological Installation Kit for Outdoor Installation...........202

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List of Tables
Table 1 Manual Revisions.....................................................................12
Table 2 Related Manuals.......................................................................12
Table 3 Application, Location Classes...................................................15
Table 4 Basic Quantities Measured by PTU300 ...................................21
Table 5 Optional Quantities Measured by PTU300...............................21
Table 6 Optional Pressure Quantities Measured by PTU300 ...............21
Table 7 Wiring of the Optional 8-Pin Connector....................................39
Table 8 Pin Assignments to RS-232/485 Serial Output ........................40
Table 9 Connecting the Twisted Pair Wires to the Screw Terminals ....56
Table 10 4-Wire (Switch 3: On)...............................................................57
Table 11 2-Wire (Switch 3: Off)...............................................................58
Table 12 Observartion Periods and Resolution.......................................62
Table 13 Periods for Trend and Max/Min Calculations ...........................70
Table 14 Graph Information Messages in Cursor Mode .........................71
Table 15 Default Serial Communication Settings for the User Port ........81
Table 16 Communication Settings for the Service Port...........................83
Table 17 IP Settings for the LAN and WLAN Interfaces..........................84
Table 18 Wireless LAN Settings..............................................................87
Table 19 Measurement Commands........................................................94
Table 20 Formatting Commands.............................................................94
Table 21 Data Recording Commands.....................................................95
Table 22 Chemical Purge Commands.....................................................95
Table 23 Calibration and Adjustment Commands...................................95
Table 24 Setting and Testing the Analog Outputs...................................95
Table 25 Setting and Testing the Relays.................................................95
Table 26 Pressure Commands................................................................96
Table 27 GPS Commands.......................................................................96
Table 28 Other Commands .....................................................................96
Table 29 FORM Command Modifiers....................................................101
Table 30 Conversion Factors for Pressure Units ..................................108
Table 31 Filtering Levels for Relative Humidity (RH) and
Temperature (T)......................................................................111
Table 32 Selection of Output Modes.....................................................119
Table 33 Relay State Examples............................................................135
Table 34 Supported MODBUS Variants................................................147
Table 35 Error Messages ......................................................................160
Table 36 Adjustment and Calibration Commands.................................164
Table 37 Indicator Led Functions..........................................................165
Table 38 Calculated Variables (Typical Ranges) ..................................182
Table 39 Transmitter Weight (in kg/lb) ..................................................186
Table 40 Supported Function Codes.....................................................207
Table 41 PTU300 MODBUS Register Blocks........................................208
Table 42 Measurement Data Registers.................................................210
Table 43 Status Registers .....................................................................211
Table 44 Configuration Parameter Registers........................................211
Table 45 Configuration Flag Registers..................................................212
Table 46 PTU300 Exception Status Outputs.........................................212
Table 47 PTU300 MODBUS Diagnostics..............................................213
Table 48 PTU300 MODBUS Device Identification................................214
Table 49 PTU300 MODBUS Exception Responses..............................214

Chapter 1 ________________________________________________________ General Information
VAISALA_______________________________________________________________________ 11
CHAPTER 1
GENERAL INFORMATION
About This Manual
This manual provides information for installing, operating, and
maintaining the Vaisala Combined Pressure, Humidity, and Temperature
Transmitter PTU300.
Contents of This Manual
- Chapter 1, General Information, provides general notes for the manual
and the product.
- Chapter 2, Product Overview, introduces the features, advantages, and
the product nomenclature of PTU300.
- Chapter 3, Installation, provides you with information that is intended
to help you install the product.
- Chapter 4, Operation, contains information that is needed to operate
this product.
- Chapter 5, MODBUS, contains information that is needed when
operating the transmitter using the MODBUS protocol.
- Chapter 6, Maintenance, contains information that is needed in basic
maintenance of the product.
- Chapter 7, Calibration and adjustment, provides information and
instructions concerning calibration and adjustment of PTU300.
- Chapter 8, Technical data, provides the technical data of the product.
- Appendix A, Probe installation kits and installation examples, presents
the installation kits available for PTU300 and provides some
installation examples.
- Appendix B, Calculation Formulas, presents the formulas used for the
calculated output quantities.
- Appendix C, MODBUS Reference, describes the MODBUS functions
and data of the transmitter.

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12 __________________________________________________________________ M210796EN-F
Version Information
Table 1 Manual Revisions
Manual Code Description
M210796EN-F May 2011. This manual. Applicable from
transmitter software version 5.10 onward.
Added MODBUS protocol. Updated serial line
command descriptions. Updated storage
temperature range.
M210796EN-E November 2009. Previous version. Added
PTU301 short cable probe.
Related Manuals
Table 2 Related Manuals
Manual Code Manual Name
M210195EN PTU200 Series Transmitters User´s Guide
Documentation Conventions
Throughout the manual, important safety considerations are highlighted
as follows:
WARNING Warning alerts you to a serious hazard. If you do not read and follow
instructions very carefully at this point, there is a risk of injury or even
death.
CAUTION Caution warns you of a potential hazard. If you do not read and follow
instructions carefully at this point, the product could be damaged or
important data could be lost.
NOTE Note highlights important information on using the product.

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VAISALA_______________________________________________________________________ 13
Safety
The PTU300 delivered to you has been tested for safety and approved as
shipped from the factory. Note the following precautions:
WARNING Ground the product, and verify outdoor installation grounding
periodically to minimize shock hazard.
CAUTION Do not modify the unit. Improper modification can damage the product,
lead to malfunction, or make the product noncompliant with applicable
legislation.
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. However, it is possible to damage the product
by delivering electrostatic discharges when touching, removing, or
inserting any objects inside the equipment housing.
To make sure you are not delivering high static voltages yourself:
- Handle ESD sensitive components on a properly grounded and
protected ESD workbench. When this is not possible, ground yourself
to the equipment chassis before touching the boards. Ground yourself
with a wrist strap and a resistive connection cord. When neither of the
above is possible, touch a conductive part of the equipment chassis
with your other hand before touching the boards.
- Always hold the boards by the edges and avoid touching the
component contacts.

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14 __________________________________________________________________ M210796EN-F
Recycling
Recycle all applicable material.
Dispose of batteries and the unit according to statutory regulations. Do
not dispose of with regular household refuse.
Regulatory Compliances
EU Declaration of Conformity
The Vaisala Combined Pressure, Humidity, and Temperature Transmitter
PTU300 is in conformity with the provisions of the following EU
directives:
- Low Voltage Directive
- EMC-Directive
Conformity is shown by compliance with the following standards:
- EN 60950-1: Information technology equipment – Safety – Part 1:
General requirements.
- 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.
- EN 61000-3-2: Limits for harmonic current emissions.
- EN 61000-3-3: Limitation of voltage changes, voltage fluctuations
and flicker in public low-voltage supply systems.

Chapter 1 ________________________________________________________ General Information
VAISALA_______________________________________________________________________ 15
DNV Type Approval
The Vaisala Combined Pressure, Humidity, and Temperature Transmitter
PTU300 is found to comply with Det Norske Veritas' Rules for
Classification of Ships, High Speed & Light Craft and Det Norske
Veritas' Offshore standards.
Applicable tests carried out according to Standard for Certification
No. 2.4, April 2006.
Table 3 Application, Location Classes
Type PTU300
Temperature B
Humidity B
Vibration A
EMC B
Enclosure B/IP65
TYPE APPROVED PRODUCT
CERTIFICATE NO.: A-11440
Transmitters with LAN or WLAN Interface
This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to Part 15 of the FCC Rules. These limits
are designed to provide reasonable protection against harmful
interference in a residential installation. Operation is subject to the
following two conditions: (1) this device may not cause interference, and
(2) this device must accept any interference, including interference that
may cause undesired operation of the device.
This equipment generates, uses and can radiate radio frequency energy
and, if not installed and used in accordance with the instructions, may
cause harmful interference to radio communications. However, there is
no guarantee that interference will not occur in a particular installation. If

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16 __________________________________________________________________ M210796EN-F
this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on,
the user is encouraged to try to correct the interference by one or more of
the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to
which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
Transmitters with WLAN Interface
This device has been designed to operate with a 2 dBi half-wave antenna.
Antennas with a gain greater than 2 dB are strictly prohibited for use with
this device. The required antenna impedance is 50 ohms.
To reduce potential radio interference to other users, the antenna type and
its gain should be so chosen that the equivalent isotropically radiated
power (e.i.r.p.) is not more than that permitted for successful
communication.
This Class [B] digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe [B] est conforme à la norme NMB-
003 du Canada.
Patent Notice
The Vaisala HUMICAP® Humidity, and Temperature Transmitter Series
PTU300 is protected by, for example, the following patents and their
corresponding national rights:
Finnish patents 98861 and 99164, French patents 6650303 and 9504397,
German patents 69418174 and 19513274, Japanese patents 3585973 and
2801156, UK patents 0665303 and 2288465, and U.S. patent 5607564.
Trademarks
HUMICAP® and BAROCAP® are registered trademarks of Vaisala Oyj.
Windows® is a registered trademark of Microsoft Corporation in the
United States and/or other countries.

Chapter 1 ________________________________________________________ General Information
VAISALA_______________________________________________________________________ 17
License Agreement
All rights to any software are held by Vaisala or third parties. The
customer is allowed to use the software only to the extent that is provided
by the applicable supply contract or Software License Agreement.
Warranty
Visit our Internet pages for more information and our standard warranty
terms and conditions: www.vaisala.com/services/warranty.html.
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.

USER'S GUIDE____________________________________________________________________
18 __________________________________________________________________ M210796EN-F
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