Vaisala PTU300 User Manual
USER'S GUIDE
Vaisala Combine d Pr ess ur e, Hu mi dit y,
and Temperature Tr an smi tt er
PTU300
M210796EN-G
PUBLISHED BY
Vaisala Oyj Phone (int.): +358 9 8949 1
P.O. Box 26 Fax: +358 9 8949 2227
FI-00421 Helsinki
Finland
Visit our Internet pages at www.vaisala.com.
© Vaisala 2013
No part of this manual may be reproduced, published or publicly displayed in any form
or by any means, electronic or mechanical (including photocopying), nor may its
contents be modified, translated, adapted, sold or disclosed to a third party without prior
written permission of the copyright holder. Translated manuals and translated portions
of multilingual documents are based on the original English versions. In ambiguous
cases, the English versions are applicable, not the translations.
The contents of this manual are subject to change without prior notice.
This manual does not create any legally binding obligations for Vaisala towards
customers or end users. All legally binding obligations and agreements are included
exclusively in the applicable supply contract or the General Conditions of Sale and
General Conditions of Service of Vaisala.
_________________________________________________________________________________
Table of Contents
CHAPTER 1
GENERAL INFORMATION .......................................................................... 13
About This Manual ................................................................. 13
Contents of This Manual ..................................................... 13
Version Information ............................................................. 14
Related Manuals ................................................................. 14
Documentation Conventions ............................................... 14
Safety ....................................................................................... 15
ESD Protection ....................................................................... 15
Recycling ................................................................................ 16
Regulatory Compliances ....................................................... 16
EU Declaration of Conformity .............................................. 16
DNV Type Approval ............................................................ 17
Transmitters with LAN or WLAN Interface .......................... 17
Transmitters with WLAN Interface ...................................... 18
Patent Notice .......................................................................... 18
Trademarks ............................................................................. 18
Software License .................................................................... 19
Warranty .................................................................................. 19
CHAPTER 2
PRODUCT OVERVIEW ................................................................................ 21
Introduction to PTU300 .......................................................... 21
Basic Features and Options ................................................ 23
New and Improved Features Compared to PTU200 ..... 23
Structure of the Transmitter ................................................ 24
Probe Options ..................................................................... 26
Warmed Probe PTU307 ...................................................... 28
CHAPTER 3
INSTALLATION ............................................................................................ 29
Mounting the Housing ........................................................... 29
Standard Mounting without Moun tin g Pla te ........................ 29
Wall Mounting with Wall Mounting Kit ................................. 30
Mounting with DIN Rail Installation Ki t ................................ 32
Pole Installation with Installation Kit for Pole or Pipeline .... 32
Mounting Rain Shield with Installation Kit ........................... 34
Panel Mounting Frame ........................................................ 35
Wiring ...................................................................................... 37
Cable Bushings ................................................................... 37
Grounding the Cables ......................................................... 38
Grounding the Transmitter Housing .................................... 39
Alternate Wiring Systems ...................................................... 39
VAISALA _________________________________________________________________________ 1
User's Guide _______________________________________________________________________
Signal and Power Supply W iring ......................................... 40
8-Pin Connector ................................................................... 41
D-9 Connector ..................................................................... 42
Connections to a 24 VAC Power Supply ............................. 43
Probe Mounting ...................................................................... 44
General Instructions for Probes with Cable ......................... 44
PTU303 for General Use ..................................................... 46
PTU307 for High Humidities ................................................ 47
Temperature Probe (Optional) ............................................ 47
Optional Modules.................................................................... 48
Power Supply Module.......................................................... 48
Installation ...................................................................... 49
Warnings ........................................................................ 50
Galvanic Isolation of the Power Supply ............................... 53
Third Analog Output ............................................................ 53
Installation and Wiring .................................................... 54
Relays .................................................................................. 55
Installation and Wiring .................................................... 55
Selecting the Activation State of the Relay .................... 55
RS-422/485 Interface .......................................................... 57
Installation and Wiring .................................................... 58
LAN Interface ....................................................................... 61
WLAN Interface ................................................................... 62
Attaching the WLAN Antenna......................................... 63
Data Logger Module ............................................................ 63
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
Using Display/Keypad ............................................... 74
Using Serial Line ....................................................... 75
Keypad Lock (Keyguard) ................................................ 75
Menu PIN Lock ............................................................... 75
Factory Settings ............................................................. 76
Configuring Display Alarms ................................................. 76
Using Display/Keypad .................................................... 77
Using Serial Line ............................................................ 79
MI70 Link Program for Data Handling .................................. 80
Serial Line Communication ................................................... 81
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User Port Connection .......................................................... 81
User Port Operating Modes ........................................... 82
Service Port Connection ..................................................... 82
Connection Cables ......................................................... 82
Installing the Driver for the USB Cable .......................... 83
Using the Service Port ................................................... 83
LAN Communication .............................................................. 84
IP Configuration .................................................................. 84
Using Display/Keypad .................................................... 85
Using Serial Line ............................................................ 86
Wireless LAN Configuration ................................................ 87
Using Display/Keypad .................................................... 88
Using Serial Line ............................................................ 89
Communication Protoco l ..................................................... 90
Web Configuration for LAN and WLAN ............................... 90
Terminal Program Settings ................................................. 91
Opening a Serial/USB connection ................................. 91
Opening a Telnet Session (LAN/WLAN) ........................ 92
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
Outputting Reading Once From All Transmitters ........... 98
Communicating with a Transmitter in POLL Mode ............. 99
OPEN ............................................................................. 99
CLOSE ........................................................................... 99
Formatting Serial Line Mess age ....................................... 100
FTIME and FDATE....................................................... 100
General Settings ................................................................... 101
Changing Quantities and Units ......................................... 101
Using Display/Keypad .................................................. 101
Using Serial Line .......................................................... 101
FORM...................................................................... 101
UNIT ........................................................................ 104
Limit RH Output Range ..................................................... 105
Date and Time ................................................................... 106
Using Display/Keypad .................................................. 106
Using Serial Line .......................................................... 106
NMEA Data Format ........................................................... 107
GPS Commands ............................................................... 108
Pressure Compensation Settings ....................................... 109
Using Display/Keypad ....................................................... 109
Using Serial Line ............................................................... 110
PRES and XPRES ....................................................... 110
PFIX ............................................................................. 110
PSTAB ......................................................................... 111
Data Filtering for Pressure ................................................ 112
Data Filtering for Humidity and Temperature .................... 113
Using Display/Keypad .................................................. 113
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User's Guide _______________________________________________________________________
Using Serial Line .......................................................... 114
Device Information ............................................................. 115
Using Serial Line .......................................................... 115
? .................................................................................... 115
LIGHT ........................................................................... 116
HELP ............................................................................ 117
ERRS ............................................................................ 117
MODS ........................................................................... 117
VERS ............................................................................ 118
Resetting Transmitter using Serial Line ............................ 118
RESET .......................................................................... 118
Locking Menu/Keypad using Serial Line ........................... 118
LOCK ............................................................................ 118
Serial Output Settings .......................................................... 119
Using Display/Keypad ....................................................... 119
Using Serial Line ............................................................... 120
SERI ............................................................................. 120
SMODE ........................................................................ 121
ADDR ........................................................................... 121
INTV ............................................................................. 122
SDELAY ....................................................................... 122
ECHO ........................................................................... 122
Data Recording ..................................................................... 123
Selecting Data Recording Quantities ................................ 123
DSEL ............................................................................ 123
View Recorded Data .......................................................... 123
DIR ............................................................................... 124
PLAY ............................................................................ 125
Deleting the Recorded Files .............................................. 126
UNDELETE .................................................................. 126
Analog Output Settings ....................................................... 127
Changing Output Mode and Range ................................... 127
Analog Output Quantities .................................................. 128
AMODE/ASEL .............................................................. 129
Analog Output Tests .......................................................... 130
ITEST ........................................................................... 130
Analog Output Fault Ind icat ion Set tin g .............................. 131
AERR ............................................................................ 131
Extend Analog Output Range ............................................ 132
Operation of Relays .............................................................. 132
Quantity for Relay Output .................................................. 132
Measurement-Based Relay Output Modes ....................... 132
Relay Setpoints ............................................................ 132
Hysteresis ..................................................................... 134
Relay Indicating Transmitter Error Status ......................... 134
Enabling/Disabling Re lays ................................................. 137
Setting Relay Outputs........................................................ 137
RSEL ............................................................................ 138
Testing Operation Of Relays ............................................. 140
RTEST .......................................................................... 140
Sensor Functions ................................................................. 141
Chemical Purge (Optional) ................................................ 141
Automatic Chemical Purge (Interval Purge) ................. 142
Manual Chemical Purge ............................................... 142
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Chemical Purge in Power Up ....................................... 142
Starting and Configuring Chemical Purge ......................... 142
Using Buttons On Motherboard ................................... 142
Using Display/Keypad (Optional) ................................. 143
Using Serial Line .......................................................... 143
PURGE ................................................................... 143
PUR......................................................................... 144
RGLIMIT ................................................................. 145
Setting Sensor Heating ..................................................... 145
Setting Humidity Sensor Heating using Display/Keypad
..................................................................................... 146
Using Serial Line .......................................................... 146
XHEAT .................................................................... 146
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 .................................................. 150
Using Display/Keypad (Optional) ...................................... 150
Using Serial Line ............................................................... 152
Diagnostic Modbus Counters ............................................. 153
Viewing Counters using Display/Keypad .......................... 153
Viewing Counters using Service Port ................................ 153
Disabling Modbus ................................................................ 154
CHAPTER 6
MAINTENANCE ......................................................................................... 155
Periodic Maintenance .......................................................... 155
Cleaning ............................................................................ 155
Changing the Probe Filter ................................................. 155
Changing the Sensor ........................................................... 156
Error States ....................................................................... 157
Technical Support ................................................................ 159
Product Returns ................................................................... 159
CHAPTER 7
CALIBRATI O N AND AD JUSTMENT ......................................................... 161
Pressure ................................................................................ 161
Opening and Closing the Adjustment Mode ..................... 162
Pressure Adjustment ........................................................... 163
One-Point Adjustment Using Display/Keypad ................... 163
One-Point Adjustment using Serial Line ........................... 164
LCI........................................................................... 164
LC............................................................................ 164
MPCI ....................................................................... 165
MPC ........................................................................ 166
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Relative Humidity Adjustment ............................................. 167
Using Push Buttons ........................................................... 167
Using Display/Keypad ....................................................... 168
Using Serial Line ............................................................... 169
Multipoint Relative Humidity Adjustment Using Serial Line
........................................................................................... 171
MPC RH Command Syntax .......................................... 171
Example Multipoint Adjustment Procedure .................. 172
Relative Humidity Adjustment After Se n sor Change........ 174
Using Display/Keypad ....................................................... 174
Using Serial Line ............................................................... 174
FCRH ............................................................................ 174
Temperature Adjustment ..................................................... 175
Using Display/Keypad ....................................................... 175
Using Serial Line ............................................................... 176
Analog Output Adjustment (Ch1 and Ch2) ........................ 177
Using Display/Keypad ....................................................... 177
Using Serial Line ............................................................... 177
ACAL ............................................................................ 177
Feeding Adjustment Information ........................................ 178
Using Display/Keypad ....................................................... 178
Using Serial Line ............................................................... 178
CTEXT .......................................................................... 178
CDATE ......................................................................... 178
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
Technical Specifications of Optional Modules ................... 187
Power Supply Module .................................................. 187
Analog Output Module .................................................. 187
Relay Module ............................................................... 187
RS-485 Module ............................................................ 188
LAN Interface Module ................................................... 188
WLAN Interface Module ............................................... 188
Data Logger Module ..................................................... 188
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Spare Parts and Accessories .............................................. 189
Dimensions (mm/inch) ......................................................... 191
PTU301 ............................................................................. 192
PTU303 ............................................................................. 194
PTU307 ............................................................................. 194
Temperature Probe ........................................................... 194
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 Install ation Kits (For PTU307) . 196
RH Probe Installation ........................................................ 196
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 Installa tion 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
VAISALA _________________________________________________________________________ 7
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List of Figures
Figure 1 Transmitter Body ...................................................................... 24
Figure 2 Inside the Transmitter ............................................................... 25
Figure 3 PTU301 Fixed Probe ................................................................ 26
Figure 4 PTU301 Short Cable Probe ...................................................... 26
Figure 5 Probe Options ........................................................................... 27
Figure 6 Standard Mounting ................................................................... 29
Figure 7 Mounting with Wall Mounting Kit .............................................. 30
Figure 8 Dimensions of the Plastic Mounting Plate (mm/inch) ............... 30
Figure 9 Dimensions of the Probe Holder Plate (mm/inch) .................... 31
Figure 10 Mounting with DIN Rail Installation Ki t ..................................... 32
Figure 11 Vertical Pole .............................................................................. 32
Figure 12 Horizontal Pole ......................................................................... 33
Figure 13 Mounting with Metal Wall Mounting Plate ................................ 33
Figure 14 Dimensions of Metal Mounting Plate (mm/inch) ....................... 34
Figure 15 Mounting Rain Shield with Installation Kit ................................ 34
Figure 16 Panel Mounting Frame ............................................................. 35
Figure 17 Panel Mounting Dimensions (mm/inch) .................................... 36
Figure 18 Cable Bushings......................................................................... 37
Figure 19 Grounding the Screen of Electrical Cable ................................ 38
Figure 20 Screw Terminal Block on Motherboard .................................... 40
Figure 21 Pinout of the Optional 8-Pin Connector .................................... 41
Figure 22 Wiring of Optional D-9 Connector............................................. 42
Figure 23 Connections to 24 VAC Power Supply ..................................... 43
Figure 24 Measurement Error at 100 %RH .............................................. 44
Figure 25 Horizontal Mounting of Probe ................................................... 45
Figure 26 Vertical Mounting of Probe ....................................................... 45
Figure 27 Power Supply Module ............................................................... 48
Figure 28 Galvanic Isolation Module ........................................................ 53
Figure 29 Third Analog Output ................................................................. 53
Figure 30 Third Analog Output Selection .................................................. 54
Figure 31 Relay Module ............................................................................ 56
Figure 32 RS-485 Module ......................................................................... 57
Figure 33 4-Wire RS-485 Bus ................................................................... 59
Figure 34 2-Wire RS-485 Bus ................................................................... 60
Figure 35 LAN Interface Module ............................................................... 61
Figure 36 WLAN Interface Module ........................................................... 62
Figure 37 Data Logger Module ................................................................. 64
Figure 38 Basic Display ............................................................................ 66
Figure 39 Basic Display with P
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 ..................................... 77
Figure 46 Display Alarm Active ................................................................. 77
Figure 47 Display Alarms .......................................................................... 78
Figure 48 Modifying an Alarm Limit .......................................................... 78
Figure 49 Service Port Connector and User Port Terminal on
Motherboard ............................................................................. 81
Figure 50 Connection Example between PC Serial Port and User Port .. 82
Trend and Tendency ............................ 67
3H
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Figure 51
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 ........................ 127
Figure 60 Relay Output Modes ............................................................... 133
Figure 61 FAULT/ONLINE STATUS Relay Output Modes .................... 135
Figure 62 Relay Indicators on Display .................................................... 137
Figure 63 Decrease of Sensor Gain ....................................................... 141
Figure 64 Purge Buttons on Mother bo ard .............................................. 142
Figure 65 Chemical Purge Settings ........................................................ 143
Figure 66 Performing Chemical Purge ................................................... 143
Figure 67 Serial Interface Settings ......................................................... 149
Figure 68 IP Configuration ...................................................................... 151
Figure 69 Wireless LAN Settings ............................................................ 151
Figure 70 Communication Protoco l ........................................................ 151
Figure 71 Modbus Counters ................................................................... 153
Figure 72 Changing the Sensor .............................................................. 156
Figure 73 Error Indicator and Error Message ......................................... 157
Figure 74 Adjustment and Purge Buttons .............................................. 162
Figure 75 Adjustment Menu ................................................................... 163
Figure 76 Selecting Point 1 Reference Type .......................................... 168
Figure 77 Accuracy over Temperature Range ....................................... 181
Figure 78 Accuracy in Dewpoint Me a s urement ...................................... 184
Figure 79 Transmitter Body Dimensions ................................................ 191
Figure 80 WLAN Antenna Dimensions ................................................... 192
Figure 81 PTU301 Fixed Probe Dimensions .......................................... 192
Figure 82 PTU301 Short Cable Probe Dimensions................................ 193
Figure 83 PTU303 Probe Dimensions .................................................... 194
Figure 84 PTU307 Probe Dimensions .................................................... 194
Figure 85 Optional Temperature Probe Dimensions .............................. 194
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
Network Interface Menu ........................................................... 85
VAISALA _________________________________________________________________________ 9
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List of Tables
Table 1 Manual Revisions ..................................................................... 14
Table 2 Related Manuals ....................................................................... 14
Table 3 Application, Location Classes ................................................... 17
Table 4 Basic Quantities Measured by PTU300 ................................... 22
Table 5 Optional Quantities Measured by PTU300 ............................... 22
Table 6 Optional Pressure Quantities Measured by PTU300 ............... 22
Table 7 Wiring of the Optional 8-Pin Connector .................................... 41
Table 8 Pin Assignments to RS-232/485 Serial Output ........................ 42
Table 9 Connecting the Twisted Pair Wires to the Screw Terminals .... 58
Table 10 4-Wire (Switch 3: On) ............................................................... 59
Table 11 2-Wire (Switch 3: Off) ............................................................... 60
Table 12 Observartion Periods and Resolu tio n ....................................... 63
Table 13 Periods for Trend and Max/Min Calculations ........................... 70
Table 14 Graph Information Messages in Cursor Mode ......................... 71
Table 15 ALSEL Parameters ................................................................... 79
Table 16 Default Serial Communication Settings for the User Port ........ 81
Table 17 Communication Settings for the Service Port ........................... 83
Table 18 IP Settings for the LAN and WLAN Interfaces .......................... 84
Table 19 Wireless LAN Settings .............................................................. 87
Table 20 Measurement Commands ........................................................ 94
Table 21 Formatting Commands ............................................................. 94
Table 22 Data Recording Commands ..................................................... 95
Table 23 Chemical Purge Commands ..................................................... 95
Table 24 Calibration and Adjustment Commands ................................... 95
Table 25 Setting and Testing the Analog Outputs ................................... 95
Table 26 Setting and Testing the Relays ................................................. 96
Table 27 Pressure Commands ................................................................ 96
Table 28 GPS Commands ....................................................................... 96
Table 29 Other Commands ..................................................................... 96
Table 30 FORM Command Modifiers .................................................... 102
Table 31 Conversion Factors for Pressure Units .................................. 110
Table 32 Filtering Levels for Humidity Temperature ............................. 113
Table 33 Selection of Output Modes ..................................................... 121
Table 34 Relay State Examples ............................................................ 136
Table 35 Supported Modbus Variants ................................................... 147
Table 36 Error Messages ...................................................................... 158
Table 37 Adjustment and Calibration Commands ................................. 162
Table 38 Indicator Led Functions .......................................................... 163
Table 39 Example List for Multipoint Correction .................................... 172
Table 40 Calculated Variables (Typical Ranges) .................................. 182
Table 41 Standard Probe Cable Lengths and Approximate
Transmitter Weight (in kg/lb) .................................................. 186
Table 42 Spare Parts and Accessories ................................................. 189
Table 43 Supported Function Codes ..................................................... 207
Table 44 PTU300 Modbus Register Blocks ........................................... 208
Table 45 Measurement Data Registers ................................................. 210
Table 46 Status Registers ..................................................................... 211
Table 47 Configuration Parameter Registers ........................................ 211
Table 48 Configuration Flag Registers .................................................. 212
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Table 49
Table 50 PTU300 Modbus Diagnostics ................................................. 213
Table 51 PTU300 Modbus Device Identification ................................... 214
Table 52 PTU300 Modbus Exception Responses ................................ 214
PTU300 Exception Status Outputs ........................................ 212
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Chapter 1 _________________________________________________________ General Information
CHAPTER 1
GENERAL INFORM ATION
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.
VAISALA ________________________________________________________________________ 13
User's Guide _______________________________________________________________________
Manual Code
Description
M210796EN-G
December 2013. This manual. Applicable from
Various small corrections.
M210796EN-F
Previous version. Applicable from transmitter
temperature range.
Manual Code
Manual Name
M210195EN
PTU200 Series Transmitters User´s Guide
Warning
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
important data could be lost.
Version Information
Table 1 Manual Revisions
transmitter software version 5.14 onward.
Removed references to HUMICAP ®180L2
sensor. Added new command descriptions:
ALSEL, AOVER, CON, DSEND, MODS,
RGLIMIT, RHLIMIT, and M PC RH (multipoint RH
calibration). Updated FILT command description.
software version 5.10 onwar d.
Added Modbus protocol. Updated serial line
command descriptions. Updated storage
Related Manuals
WARNING
CAUTION
Table 2 Related Manuals
Documentation Conventions
Throughout the manual, important safety considerations are highlighted
as follows:
alerts you to a serious hazard. If you do not read and follow
this point, the product could be damaged or
NOTE
Note highlights important information on using the product.
14 ___________________________________________________________________ M210796EN-G
Chapter 1 _________________________________________________________ General Information
Ground the product, and verify outdoor installation grounding
periodically to minimize shock hazard.
Do not modify the unit. Improper modification can damage the product,
lead to malfunction, or make the product
legislation.
Safety
The PTU300 delivered to you has been tested for safety and approved as
shipped from the factory. Note the following precautions:
WARNING
CAUTION
noncompliant with applicable
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.
VAISALA ________________________________________________________________________ 15
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Recycle all applicable material.
Dispose of the unit according
with regular household refuse.
Recycling
to statutory regulations. Do not dispose of
Regulatory Compliances
EU Declaration of Conformity
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.
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Chapter 1 _________________________________________________________ General Information
Type
PTU300
Temperature
B
Humidity
B
Vibration
A
EMC
B
Enclosure
B/IP65
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 APPROVED PRODUCT
CERTIFICATE NO.: A-13529
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
this equipment does cause harmful interference to radio or television
VAISALA ________________________________________________________________________ 17
User's Guide _______________________________________________________________________
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 dBi are prohibited for use with this
device. The 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 (EIRP) 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 Notic e
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.
All other trademarks are the property of their respective owners.
18 ___________________________________________________________________ M210796EN-G
Chapter 1 _________________________________________________________ General Information
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.
VAISALA ________________________________________________________________________ 19
User's Guide _______________________________________________________________________
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Chapter 2 ___________________________________________________________ Product Overview
CHAPTER 2
PRODUCT OVERVIE W
This chapter introduces the features, advantages, and the product
nomenclature of the Vaisala Combined Pressure, Humidity, and
Temperature Transmitter PTU300.
Introduction to PTU300
The PTU300 transmitter provides reliable pressure measurement in a
wide range of applications. PTU300 series transmitters use a
BAROCAP® silicon capacitive absolute sensor developed by Vaisala for
barometric pressure measurement applications. The measurement
principle of the PTU300 series digital transmitters is based on an
advanced RC oscillator and three reference capacitors against which the
capacitive pressure sensor is continuously measured. The microprocessor
of the transmitter performs compensation for pressure linearity and
temperature dependence.
The applications of the PTU300 range from calibration laboratory
environmental condition monitoring to laser interferometer active
wavelength compensation and GPS meterorological measurements.
The PTU300 transmitter combines three measurement parameters:
pressure, temperature and humidity. The quantities measured and
calculated by PTU300 are presented in Table 4 on page 22. The
quantities available as an option are presented in Table 5 on page 22.
Analog outputs can be chosen between current and voltage signals.
Alternatively, digital outputs RS-232 (standard) or RS-422/485 (optional)
can be selected. A local display is also available.
The PTU300 transmitter is available with one or two pressure
transducers. The PTU301, PTU303 and PTU307 probes are available for
the PTU300 transmitter. A PTU30T model with only the temperature
probe (no humidity measurement) is also available.
In outdoor applications it is recommended to use the HMT330MIK
mounting kit with the PTU300 transmitters.
VAISALA ________________________________________________________________________ 21
User's Guide _______________________________________________________________________
Quantity
Abbreviation
Metric Unit
Non-Metric Unit
Pressure
P
See Table 6 on page 22.
Relative Humidity1)
RH
%RH
%RH
Temperature
T
ºC
ºF
Quantity
Abbreviation
Metric Unit
Non-Metric Unit
Dewpoint /Frostpoint Temperature (T
d/f
)
TDF
ºC
ºF
Dewpoint Temperature (Td)
TD
ºC
ºF
Absolute humidity (a)
A
g/m3
gr/ft3
Mixing ratio (x)
X
g/kg
gr/lb
Wetbulb temperature (Tw)
TW
ºC
ºF
Humid air volume/ dry air volume
(by volume or by weight) (H2O)
H2O
ppmv/ppmw
ppmv/ppmw
Water vapor pressure (Pw)
PW
hPa
lb/in2
Water vapor saturation pressure (Pws)
PWS
hPa
lb/in2
Enthalpy (h)
H
kJ/kg
Btu/lb
Difference of T and T
d/f
(∆T)
DT
ºC
ºF
Quantity
Abbreviation
Units Available
Pressure trend and tendency
P3h
hPa, psia, inHg, torr, bara, barg,
Pressure (measures average pressure
from P1 and P2 if both are connected)
P
Pressure from transducer 1 or 2
P1 and P2
QNH pressure
QNH
QFE pressure
QFE
Height Corrected Pressure
HCP
Table 4 Basic Quantities Measured by PTU300
1) Relative humidity not included on the PTU30T model
Table 5 Optional Quantities Measured by PTU300
Table 6 Optional Pressure Quantities Measured by PTU300
psig, mbar, mmHg, kPa, Pa,
O, inH2O
mmH
2
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Chapter 2 ___________________________________________________________ Product Overview
Basic Features an d Options
- Pressure redundancy option: two sensors in one unit
- Two accuracy classes for pressure measurement
- Several probes for various applications
- A 3 h trend and tendency available in pressure measurement
- Calculated output quantities available
- User-friendly display and keypad interface (optional)
- Different probe mounting kits, sensor protection options and probe
cable lengths
- Transmitter mounting kits for multiple installation purposes
- Chemical purge for applications where interfering chemicals in the
measuring environment pose a risk
- Warmed probe and sensor heating for high humidity conditions
(PTU307)
- Support for Modbus serial communications protocol
- Optional temperature sensor for PTU307
- Optional modules:
- Isolated power supply
- Power supply module for AC mains power
- RS-422/485-module
- LAN and WLAN interfaces
- Data logger module with real time clock
- Additional analog output module
- Relay module
New and Improved Features Compared to PTU200
- Improved %RH accuracy
- Graphical display (trend of any parameter)
- Analog outputs (voltage and current)
- Service port for MI70 or PC
- Support for Modbus serial communications protocol
- USB connectivity for service connections via the optional
USB-RJ45 cable
- Isolated RS-485 module (using single barometer module)
- Relay module (using single barometer module)
- LAN and WLAN interfaces (using single barometer module)
- Data logger module with real time clock (using single barometer
module)
VAISALA ________________________________________________________________________ 23
User's Guide _______________________________________________________________________
The numbers refer to Figure 1 above:
1 = Signal + powering cable gland, or WLAN antenna connector
2 = Pressure port
3 = Cable gland for optional module or AC mains cable
4 = Cover screw (4 pcs)
5 = Display with keypad (optional)
6 = Cover LED
Structure of the Transmitter
Figure 1 Transmitter Body
1104-078
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Chapter 2 ___________________________________________________________ Product Overview
The following numbers refer to Figure 2 above:
1 = Service port (RS-232)
2 = DIP switches for analog output settings
3 = Power supply and signal wiring screw terminals
4 = Relay, RS-422/485, data logger, LAN, WLAN, or analog
output module (optional)
5 = Grounding connector for power supply module
6 = Adjustment buttons (chemical purge buttons) with indicator
LED
7 = Galvanic isolation module (optional)
8 = Temperature probe cable
9 = Humidity probe cable
10 = BARO-1 module
11 = Pressure port
12 = Power supply module.
Figure 2 Inside the Transmitter
0604-060
VAISALA ________________________________________________________________________ 25
User's Guide _______________________________________________________________________
Probe Options
The PTU301 is intended for wall-mounted applications. The standard
version has a fixed probe.
1104-079
Figure 3 PTU301 Fixed Probe
The PTU301 short cable probe is a special version for use with the
WLAN module, and when LAN module and power supply module are
simultaneously installed. It has the general use PTU303 probe on a short
cable (21 cm), and a mounting plate with a probe holder.
1104-080
Figure 4 PTU301 Short Cable Probe
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Chapter 2 ___________________________________________________________ Product Overview
The following numbers refer to Figure 5 above:
1 = PTU303 Probe for general use
2 = PTU307 for demanding processes (optionally warmed probe)
3 = Temperature probe
0911-067
Figure 5 Probe Options
For probe cable lengths, see Table 41 on page 186.
VAISALA ________________________________________________________________________ 27
User's Guide _______________________________________________________________________
Warmed Probe PTU307
Temperature difference between the probe and external environment can
cause a risk of condensation on the sensor. A wet probe cannot observe
the actual humidity in the ambient air. If the condensed water is
contaminated, the life span of the probe may shorten and calibration may
change.
PTU307 probe shall be used in applications where condensation can
occur due to high humidity and rapid humidity changes. The warmed
probe is heated continuously so that its temperature is always higher than
that of the environment. This prevents condensation on the probe. The
power consumption of the warmed probe is slightly higher than that of
the other probes.
28 ___________________________________________________________________ M210796EN-G
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