Vaisala DRYCAP DMT340 SERIES User manual

USER'S GUIDE
Vaisala DRYCAP® Dewpoint and
Temperature Transmitter Series
DMT340
M210704EN-E

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 2009
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.

________________________________________________________________________________
VAISALA________________________________________________________________________ 3
Table of Contents
CHAPTER 1
GENERAL INFORMATION..........................................................................13
About This Manual.................................................................13
Contents of This Manual.....................................................13
Version Information.............................................................14
General Safety Considerations...........................................14
Feedback.............................................................................14
Product Related Safety Precautions....................................15
ESD Protection....................................................................15
Recycling ................................................................................15
Regulatory Compliances.......................................................16
DNV Type Approval.......................................................16
Transmitters with LAN or WLAN Interface.....................16
Transmitters with WLAN Interface.................................17
Patent Notice ..........................................................................17
Trademarks.............................................................................17
License Agreement................................................................18
Warranty..................................................................................18
CHAPTER 2
PRODUCT OVERVIEW................................................................................19
Introduction to DMT340.........................................................19
Basic Features and Options................................................20
Structure of the Transmitter ................................................21
Probe Options .....................................................................23
CHAPTER 3
INSTALLATION............................................................................................25
Mounting the Housing ...........................................................25
Standard Mounting without Mounting Plate........................25
Wall Mounting with Wall Mounting Kit.................................26
Mounting with DIN Rail Installation Kit................................28
Pole Installation with Installation Kit for Pole or Pipeline ....29
Mounting the Rain Shield with Installation Kit.....................30
Panel Mounting Frame........................................................30
Wiring ......................................................................................32
Cable Bushings...................................................................32
Grounding the Cables.........................................................33
Transmitter Housing Grounding..........................................34
Signal and Power Supply Wiring.........................................34
Connections to a 24 VAC Power Supply ............................35
Probe Mounting......................................................................36
DMT342 Small-size Flanged Probe for Use with Sampling
Cell......................................................................................37
DMT344 For High-pressure Applications............................39

USER'S GUIDE____________________________________________________________________
4 ___________________________________________________________________ M210704EN-E
DMT347 Small Pressure-tight Probe...................................41
Pressure-Tight Swagelok Installation Kits for DMT347.......41
DMT348 For Pressurized Pipelines.....................................43
Tightening the Clasp Nut.....................................................45
Ball Valve Installation Kit for DMT348.................................46
Leak Screw Installation .......................................................49
Mounting the Probe Directly to the Process........................50
Sampling Cell for DMT348..................................................52
Optional Modules ...................................................................54
Power Supply Module .........................................................54
Installation......................................................................55
Warnings ........................................................................55
Galvanic Isolation for Output...............................................58
Installation......................................................................58
Third Analog Output ............................................................59
Installation and Wiring....................................................59
Alarm Relays.......................................................................60
Installation and Wiring....................................................60
Selecting the Activation State of the Relay....................61
RS-422/485 Interface ..........................................................62
Installation and Wiring....................................................62
LAN Interface.......................................................................64
WLAN Interface...................................................................65
Attaching the WLAN Antenna ........................................66
Data Logger Module............................................................66
8-pin Connector...................................................................69
CHAPTER 4
OPERATION.................................................................................................71
Getting Started........................................................................71
Display/Keypad.......................................................................71
Basic Display.......................................................................71
Graphic History....................................................................72
Menus and Navigation.........................................................74
Changing the Language.................................................75
Rounding Setting............................................................76
Display Backlight Setting................................................76
Display Contrast Setting.................................................76
Keypad Lock (Keyguard)................................................76
Menu PIN Lock...............................................................77
Factory Settings...................................................................77
Display Alarms.....................................................................78
Configuring a Display Alarm...........................................78
MI70 Link Program for Data Handling ..................................80
Serial Line Communication...................................................80
User Port Connection..........................................................81
Service Port Connection......................................................82
Connection Cables.........................................................82
Installing the Driver for the USB Cable ..........................82
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....................................................87

________________________________________________________________________________
VAISALA________________________________________________________________________ 5
Using Serial Line............................................................89
Telnet Settings....................................................................89
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 the Measurement Message from Serial Line .........96
Starting Continuous Outputting......................................96
R................................................................................96
Stopping Continuous Outputting....................................96
S................................................................................96
Formatting Serial Line Message .........................................97
FTIME and FDATE.........................................................97
FST ................................................................................97
General Settings.....................................................................98
Changing the Quantities and Units.....................................98
Using Display/Keypad....................................................98
Using Serial Line............................................................99
FORM.............................................................................99
UNIT.............................................................................100
Pressure Compensation Setting .......................................101
Using Display/Keypad..................................................101
Using Buttons on the Motherboard..............................102
Using Serial Line..........................................................102
XPRES and PRES..................................................102
Date and Time...................................................................103
Using Display/Keypad..................................................103
Using Serial Line..........................................................104
User Port Serial Settings...................................................104
SERI.............................................................................105
SMODE........................................................................105
INTV.............................................................................106
ECHO...........................................................................106
Data Filtering.....................................................................106
FILT..............................................................................107
Device Information............................................................107
? ...................................................................................108
HELP............................................................................109
ERRS...........................................................................109
VERS ...........................................................................109
Resetting the Transmitter Using Serial Line .....................110
RESET.........................................................................110
Locking Menu/Keypad by Using Serial Line .....................110
LOCK ...........................................................................110
Data Recording.....................................................................111
Selecting the Data Recording Quantities..........................111
DSEL............................................................................111
View Recorded Data.........................................................111
DIR...............................................................................112
PLAY............................................................................113
Deleting the Recorded Files..............................................114
UNDELETE..................................................................114
Analog Output Settings.......................................................114
Changing the Output Mode and Range............................114
Analog Output Quantities..................................................116
AMODE/ASEL..............................................................117

USER'S GUIDE____________________________________________________________________
6 ___________________________________________________________________ M210704EN-E
Analog Output Tests..........................................................118
ITEST ...........................................................................118
Analog Output Fault Indication Setting..............................119
AERR............................................................................119
Operation of Relays..............................................................120
Quantity for Relay Output..................................................120
Measurement-Based Relay Output Modes.......................120
Relay Setpoints............................................................120
Hysteresis.....................................................................121
Relay Indicating Transmitter Error Status .........................122
Enabling/Disabling the Relays...........................................123
Operation of the Indication LEDs ......................................124
Setting the Relay Outputs .................................................124
RSEL............................................................................125
Testing the Operation of Relays........................................126
RTEST..........................................................................127
Operation of the RS-485 Module.........................................127
Networking Commands................................................127
SDELAY .......................................................................128
SERI.............................................................................128
ECHO...........................................................................128
SMODE ........................................................................128
INTV .............................................................................129
ADDR ...........................................................................129
OPEN [nn]....................................................................130
CLOSE .........................................................................130
Sensor Functions .................................................................130
AutoCal..............................................................................130
Automatic AutoCal........................................................131
Manual AutoCal............................................................131
Sensor Purge.....................................................................131
Manual Sensor Purge...................................................132
Interval Purge...............................................................132
Power-up Purge ...........................................................133
PUR.........................................................................133
PURGE....................................................................133
Sensor Warming................................................................134
CHAPTER 5
MAINTENANCE..........................................................................................135
Periodic Maintenance...........................................................135
Cleaning ............................................................................135
Changing the Probe Filter .................................................135
Calibration and Adjustment...............................................135
Error States .......................................................................136
Technical Support ................................................................138
Return Instructions ..............................................................138
Vaisala Service Centers.......................................................139
CHAPTER 6
CALIBRATION AND ADJUSTMENT.........................................................141
Calibration.............................................................................141
User Calibration and Adjustment.......................................141
Opening and Closing the Adjustment Mode......................142

________________________________________________________________________________
VAISALA________________________________________________________________________ 7
Adjustment Information.....................................................143
CTEXT and CDATE.....................................................143
Adjusting Dewpoint Td/f .......................................................144
Two-point Relative Humidity Adjustment using
Display/Keypad.................................................................144
Two-point Relative Humidity Adjustment Using Serial Line146
One-point Dewpoint Adjustment Using Display/Keypad...146
One-point Dewpoint Adjustment Using Serial Line...........148
Adjusting Temperature........................................................149
Adjusting Temperature Using Display/Keypad .................149
Adjusting Temperature Using Serial Line .........................150
CT ................................................................................150
Adjusting Analog Outputs...................................................151
Adjusting Analog Outputs using Display/Keypad..............151
Adjusting Analog Outputs using Serial Line......................152
ACAL............................................................................152
CHAPTER 7
TECHNICAL DATA....................................................................................153
Specifications.......................................................................153
Performance......................................................................153
Operating Environment.....................................................154
Inputs and Outputs............................................................154
Mechanics.........................................................................155
Probe Specifications .........................................................155
Technical Specifications of Optional Modules ..................156
Power Supply Module..................................................156
Analog Output Module.................................................156
Relay Module...............................................................156
RS-485 Module............................................................157
LAN Interface Module ..................................................157
WLAN Interface Module...............................................157
Data Logger Module ....................................................157
Options and Accessories....................................................158
Dimensions (mm/inch).........................................................160
APPENDIX A
CALCULATION FORMULAS ....................................................................165

USER'S GUIDE____________________________________________________________________
8 ___________________________________________________________________ M210704EN-E
This page intentionally left blank.

________________________________________________________________________________
VAISALA________________________________________________________________________ 9
List of Figures
Figure 1 Transmitter Body......................................................................21
Figure 2 Inside the Transmitter...............................................................22
Figure 3 Probe Options ..........................................................................23
Figure 4 Standard Mounting...................................................................25
Figure 5 Mounting with Wall Mounting Kit..............................................26
Figure 6 Dimensions of the Plastic Mounting Plate (mm/inch)...............26
Figure 7 Mounting with Metal Wall Mounting Plate................................27
Figure 8 Dimensions of Metal Mounting Plate (mm/inch) ......................27
Figure 9 Mounting with DIN Rail Installation Kit.....................................28
Figure 10 Vertical Pole.............................................................................29
Figure 11 Horizontal Pole.........................................................................29
Figure 12 Mounting the Rain Shield with Installation Kit..........................30
Figure 13 Panel Mounting Frame.............................................................31
Figure 14 Panel Mounting Dimensions (mm/inch) ...................................31
Figure 15 Cable Bushings........................................................................32
Figure 16 Grounding the Screen of Electrical Cable................................33
Figure 17 Screw Terminal Block on the Motherboard..............................34
Figure 18 Connections to 24 VAC Power Supply.....................................36
Figure 19 DMT342 Installation (without the Sampling Cell).....................37
Figure 20 HMP302SC Optional Sampling Cell.........................................38
Figure 21 DMT344 Probe.........................................................................39
Figure 22 Tightening the Nut....................................................................40
Figure 23 Cleaning of the Tightening Cone..............................................40
Figure 24 DMT347 Probe with Swagelok Installation Kit .........................41
Figure 25 DMT347 Probe Installation to Pipeline with Swagelok
Installation Kit...........................................................................42
Figure 26 DMT348 Probe.........................................................................43
Figure 27 Leak Screw in the DMT348 Probe...........................................44
Figure 28 Sealing of Fitting Body into Process ........................................44
Figure 29 Tightening the Clasp Nut..........................................................45
Figure 30 Installing the DMT348 Probe Through a Ball Valve Assembly 47
Figure 31 Probe in Leak Screw Installation..............................................49
Figure 32 DM240FA with Probe...............................................................50
Figure 33 Example of Installing the Probe Directly on the Process Pipe.51
Figure 34 Sampling Cells DMT242SC2 and DMT242SC ........................52
Figure 35 Installing the Probe in High Temperatures...............................53
Figure 36 Power Supply Module ..............................................................54
Figure 37 Galvanic Output Isolation Module............................................58
Figure 38 Third Analog Output.................................................................59
Figure 39 Third analog output selection...................................................60
Figure 40 Relay Module ...........................................................................61
Figure 41 RS-485-Module........................................................................62
Figure 42 4-Wire RS-485 Bus ..................................................................63
Figure 43 LAN Interface Module...............................................................65
Figure 44 WLAN Interface Module...........................................................66
Figure 45 Data Logger Module.................................................................68
Figure 46 Wiring of the Optional 8-pin Connector....................................69
Figure 47 Basic Display............................................................................72
Figure 48 Graphical Display.....................................................................72
Figure 49 Graphical Display with Data Logger.........................................73
Figure 50 Main Views...............................................................................75
Figure 51 Display Alarm Active ................................................................78
Figure 52 Display Alarms .........................................................................79
Figure 53 Modifying an Alarm Limit..........................................................79

USER'S GUIDE____________________________________________________________________
10 __________________________________________________________________ M210704EN-E
Figure 54 Service Port Connector and User Port Terminal on the Mother
Board........................................................................................81
Figure 55 Connection Example Between PC Serial Port and User Port..82
Figure 56 Network Interface Menu ...........................................................85
Figure 57 IP Configuration Menu..............................................................85
Figure 58 Wireless LAN Settings..............................................................88
Figure 59 Entering Network SSID.............................................................88
Figure 60 Selecting the Wireless Network Type.......................................88
Figure 61 Web Configuration Interface for WLAN....................................91
Figure 62 Opening a Serial Connection....................................................92
Figure 63 Opening a Telnet Connection...................................................93
Figure 64 Pressure Set Buttons on the Motherboard.............................102
Figure 65 Following Device Information on the Display .........................107
Figure 66 Current/Voltage Switches of Output Modules ........................115
Figure 67 Measurement-Based Relay Output Modes............................120
Figure 68 FAULT/ONLINE STATUS Relay Output Modes.....................123
Figure 69 Relay Availability ....................................................................124
Figure 70 Following AutoCal on the Display...........................................131
Figure 71 Performing Manual Purge.......................................................132
Figure 72 Activating Start-up Purge........................................................133
Figure 73 Error Indicator and Error Message.........................................136
Figure 74 Starting the Adjustment..........................................................144
Figure 75 Performing Purge ...................................................................144
Figure 76 Following the RH Trend on Graphical Display .......................145
Figure 77 Ending Adjustment of Point 1.................................................145
Figure 78 Proceeding to Adjustment of Point 2......................................145
Figure 79 Completing Adjustment of Point 2..........................................145
Figure 80 Following Stabilization............................................................147
Figure 81 Proceeding with T d/f Adjustment............................................147
Figure 82 Completing T d/f Adjustment....................................................147
Figure 83 Dewpoint Accuracy Graph......................................................153
Figure 84 DMT340 Transmitter Body Dimensions .................................160
Figure 85 WLAN Antenna Dimensions...................................................161
Figure 86 Sampling Cell Dimensions......................................................161
Figure 87 DMT342 Probe Dimensions ...................................................162
Figure 88 DMT344 Probe Dimensions ...................................................162
Figure 89 DMT347 Probe Dimensions ...................................................163
Figure 90 DMT348 Standard Probe Dimensions....................................163
Figure 91 NPT 1/2" Nut Dimensions.......................................................164
Figure 92 DMT348 Optional 400mm Probe Dimensions........................164