Vaisala DRYCAP DMT340 SERIES Manuale utente

USER'S GUIDE

Vaisala DRYCAP® Dewpoint and

Temperature Transmitter Series

DMT340

M210704EN-F

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 http://www.vaisala.com/

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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VAISALA________________________________________________________________________ 1

Table of Contents

CHAPTER 1

GENERAL INFORMATION..........................................................................11

About This Manual.................................................................11

Contents of This Manual.....................................................11

Version Information.............................................................12

Documentation Conventions...............................................12

Safety.......................................................................................13

ESD Protection....................................................................13

Recycling ................................................................................13

Regulatory Compliances.......................................................14

EU Declaration of Conformity..............................................14

Transmitters with LAN or WLAN Interface..........................14

Transmitters with WLAN Interface ......................................15

Patent Notice ..........................................................................15

Trademarks.............................................................................15

License Agreement................................................................15

Warranty..................................................................................16

CHAPTER 2

PRODUCT OVERVIEW................................................................................17

Introduction to DMT340.........................................................17

Basic Features and Options................................................18

Structure of the Transmitter ................................................19

Probe Options .....................................................................21

CHAPTER 3

INSTALLATION............................................................................................23

Mounting the Housing ...........................................................23

Standard Mounting without Mounting Plate........................23

Wall Mounting with Wall Mounting Kit.................................24

Mounting with DIN Rail Installation Kit................................26

Pole Installation with Installation Kit for Pole or Pipeline ....27

Mounting the Rain Shield with Installation Kit.....................28

Panel Mounting Frame........................................................28

Wiring ......................................................................................30

Cable Bushings...................................................................30

Grounding the Cables.........................................................31

Transmitter Housing Grounding..........................................32

Signal and Power Supply Wiring.........................................32

Connections to a 24 VAC Power Supply ............................34

Probe Mounting......................................................................35

DMT342 Small-size Flanged Probe for Use with

Sampling Cell......................................................................35

DMT344 For High-pressure Applications............................37

DMT347 Small Pressure-tight Probe..................................39

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Pressure-Tight Swagelok Installation Kits for DMT347.......39

DMT348 For Pressurized Pipelines.....................................41

Tightening the Clasp Nut.....................................................43

Ball Valve Installation Kit for DMT348.................................45

Leak Screw Installation .......................................................47

Mounting the Probe Directly to the Process........................48

Sampling Cell for DMT348..................................................50

Optional Modules ...................................................................52

Power Supply Module .........................................................52

Installation......................................................................53

Warnings ........................................................................54

Galvanic Isolation for Output...............................................57

Installation......................................................................57

Third Analog Output ............................................................57

Installation and Wiring....................................................58

Alarm Relays.......................................................................59

Installation and Wiring....................................................59

Selecting the Activation State of the Relay....................59

RS-422/485 Interface ..........................................................61

Installation and Wiring....................................................62

LAN Interface.......................................................................65

WLAN Interface...................................................................66

Attaching the WLAN Antenna ........................................67

Data Logger Module............................................................68

8-Pin Connector...................................................................70

CHAPTER 4

OPERATION.................................................................................................71

Getting Started........................................................................71

Display/Keypad.......................................................................72

Basic Display.......................................................................72

Graphic History....................................................................73

Menus and Navigation.........................................................75

Changing the Language.................................................76

Rounding Setting............................................................76

Display Backlight Setting................................................76

Display Contrast Setting.................................................77

Keypad Lock (Keyguard)................................................77

Menu PIN Lock...............................................................77

Factory Settings...................................................................78

Display Alarms.....................................................................78

Configuring a Display Alarm...........................................79

MI70 Link Program for Data Handling ..................................81

Serial Line Communication...................................................82

User Port Connection..........................................................83

User Port Operating Modes............................................83

Service Port Connection......................................................84

Connection Cables.........................................................84

Installing the Driver for the USB Cable ..........................84

Using the Service Port....................................................85

LAN Communication..............................................................85

IP Configuration...................................................................86

Using Display/Keypad....................................................86

Using Serial Line............................................................88

Wireless LAN Configuration................................................89

Using Display/Keypad....................................................90

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VAISALA________________________________________________________________________ 3

Using Serial Line............................................................91

Communication Protocol.....................................................92

Web Configuration for LAN and WLAN...............................92

Terminal Program Settings .................................................93

Opening a Serial/USB Connection.................................94

Opening a Telnet Session (LAN/WLAN)........................95

List of Serial Commands.....................................................96

Getting the Measurement Message from Serial Line .........99

Starting Continuous Outputting......................................99

Stopping Continuous Outputting....................................99

Outputting Reading Once ..............................................99

Assign an Alias for the SEND Command ....................100

Communicating with a Transmitter in POLL Mode...........100

OPEN...........................................................................100

CLOSE.........................................................................100

Formatting Serial Line Message .......................................101

FTIME and FDATE.......................................................101

FST ..............................................................................102

General Settings...................................................................103

Changing the Quantities and Units...................................103

Using Display/Keypad..................................................103

Using Serial Line..........................................................104

FORM...........................................................................104

UNIT.............................................................................105

Pressure Compensation Setting .......................................106

Using Display/Keypad..................................................106

Using Buttons on the Motherboard..............................107

Using Serial Line..........................................................107

XPRES and PRES..................................................107

Date and Time...................................................................108

Using Display/Keypad..................................................108

Using Serial Line..........................................................109

Data Filtering.....................................................................109

FILT..............................................................................110

Device Information............................................................110

LIGHT...........................................................................112

HELP............................................................................112

ERRS...........................................................................113

VERS ...........................................................................113

Resetting the Transmitter Using Serial Line .....................113

RESET.........................................................................113

Locking Menu/Keypad Using Serial Line..........................114

LOCK ...........................................................................114

Serial Output Settings..........................................................115

Using Display/Keypad.......................................................115

Using Serial Line...............................................................116

SERI.............................................................................116

SMODE........................................................................117

ADDR...........................................................................117

INTV.............................................................................118

SDELAY.......................................................................118

ECHO...........................................................................119

Data Recording.....................................................................120

Selecting the Data Recording Quantities..........................120

DSEL............................................................................120

View Recorded Data.........................................................121

DIR...............................................................................121

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PLAY ............................................................................122

Deleting the Recorded Files..............................................123

UNDELETE..................................................................123

Analog Output Settings .......................................................123

Changing the Output Mode and Range ............................123

Analog Output Quantities..................................................125

AMODE/ASEL..............................................................126

Analog Output Tests..........................................................127

ITEST ...........................................................................127

Analog Output Fault Indication Setting..............................128

AERR............................................................................128

Operation of Relays..............................................................129

Quantity for Relay Output..................................................129

Measurement-Based Relay Output Modes.......................129

Relay Setpoints............................................................129

Hysteresis.....................................................................131

Relay Indicating Transmitter Error Status .........................131

Enabling/Disabling the Relays...........................................133

Operation of the Indication LEDs ......................................134

Setting the Relay Outputs .................................................134

RSEL............................................................................135

Testing the Operation of Relays........................................137

RTEST..........................................................................137

Sensor Functions .................................................................138

AutoCal..............................................................................138

Automatic AutoCal........................................................138

Manual AutoCal............................................................139

Sensor Purge.....................................................................139

Starting and Configuring Sensor Purge ............................140

Using Display/Keypad (Optional).................................140

Using Serial Line..........................................................141

PURGE....................................................................141

PUR.........................................................................141

Sensor Warming................................................................142

CHAPTER 5

MODBUS ....................................................................................................143

Overview of MODBUS Protocol Support............................143

Taking MODBUS into Use.................................................144

Enabling Serial MODBUS.....................................................145

Using Display/Keypad (Optional) ......................................145

Using Serial Line ...............................................................145

Enabling Ethernet MODBUS................................................147

Using Display/Keypad (Optional) ......................................147

Using Serial Line ...............................................................148

Diagnostic MODBUS Counters ...........................................150

Viewing Counters Using Display/Keypad..........................150

Viewing Counters Using Service Port ...............................150

Disabling MODBUS ..............................................................151

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VAISALA________________________________________________________________________ 5

CHAPTER 6

MAINTENANCE .........................................................................................153

Periodic Maintenance ..........................................................153

Cleaning............................................................................153

Changing the Probe Filter.................................................153

Calibration and Adjustment...............................................153

Error States.......................................................................154

Technical Support................................................................156

Product Returns...................................................................156

CHAPTER 7

CALIBRATION AND ADJUSTMENT.........................................................157

Calibration.............................................................................157

User Calibration and Adjustment ......................................157

Opening and Closing the Adjustment Mode .....................158

Adjustment Information.....................................................159

CTEXT and CDATE.....................................................159

Adjusting Dewpoint Td/f .......................................................160

Two-Point Relative Humidity Adjustment using

Display/Keypad.................................................................160

Two-Point Relative Humidity Adjustment using

Serial Line .........................................................................162

One-Point Dewpoint Adjustment using Display/Keypad...162

One-Point Dewpoint Adjustment using Serial Line...........164

Adjusting Temperature........................................................165

Adjusting Temperature using Display/Keypad..................165

Adjusting Temperature using Serial Line..........................166

CT ................................................................................166

Adjusting Analog Outputs...................................................167

Adjusting Analog Outputs using Display/Keypad..............167

Adjusting Analog Outputs using Serial Line......................168

ACAL............................................................................168

CHAPTER 8

TECHNICAL DATA....................................................................................169

Specifications.......................................................................169

Performance......................................................................169

Operating Environment.....................................................170

Inputs and Outputs............................................................170

Mechanics.........................................................................171

Probe Specifications .........................................................171

Technical Specifications of Optional Modules ..................172

Power Supply Module..................................................172

Analog Output Module.................................................172

Relay Module...............................................................172

RS-485 Module............................................................173

LAN Interface Module ..................................................173

WLAN Interface Module...............................................173

Data Logger Module ....................................................173

Options and Accessories....................................................174

Dimensions (mm/inch).........................................................176

USER'S GUIDE____________________________________________________________________

6 ___________________________________________________________________ M210704EN-F

APPENDIX A

CALCULATION FORMULAS.....................................................................181

APPENDIX B

MODBUS REFERENCE.............................................................................185

Function Codes.....................................................................185

Data Encoding...................................................................186

32-Bit Floating Point Format ........................................186

16-Bit Integer Format ...................................................187

Measurement Data (Read-Only).......................................188

Status Registers (Read-Only) ...........................................189

Configuration Registers.....................................................189

Exception Status Outputs....................................................190

Diagnostic Sub-Functions...................................................191

Device Identification Objects ..............................................192

Exception Responses..........................................................192

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VAISALA________________________________________________________________________ 7

List of Figures

Figure 1 Transmitter Body......................................................................19

Figure 2 Inside the Transmitter...............................................................20

Figure 3 Probe Options ..........................................................................21

Figure 4 Standard Mounting...................................................................23

Figure 5 Mounting with Wall Mounting Kit..............................................24

Figure 6 Dimensions of the Plastic Mounting Plate (mm/inch)...............24

Figure 7 Mounting with Metal Wall Mounting Plate................................25

Figure 8 Dimensions of Metal Mounting Plate (mm/inch) ......................25

Figure 9 Mounting with DIN Rail Installation Kit.....................................26

Figure 10 Vertical Pole.............................................................................27

Figure 11 Horizontal Pole.........................................................................27

Figure 12 Mounting the Rain Shield with Installation Kit..........................28

Figure 13 Panel Mounting Frame.............................................................29

Figure 14 Panel Mounting Dimensions (mm/inch) ...................................29

Figure 15 Cable Bushings........................................................................30

Figure 16 Grounding the Screen of Electrical Cable................................31

Figure 17 Screw Terminal Block on the Motherboard..............................32

Figure 18 Connections to 24 VAC Power Supply.....................................34

Figure 19 DMT342 Installation (without the Sampling Cell).....................35

Figure 20 HMP302SC Optional Sampling Cell.........................................36

Figure 21 DMT344 Probe.........................................................................37

Figure 22 Tightening the Nut....................................................................38

Figure 23 Cleaning of the Tightening Cone..............................................38

Figure 24 DMT347 Probe with Swagelok Installation Kit .........................39

Figure 25 DMT347 Probe Installation to Pipeline with Swagelok

Installation Kit...........................................................................40

Figure 26 DMT348 Probe.........................................................................41

Figure 27 Leak Screw in the DMT348 Probe...........................................42

Figure 28 Sealing of Fitting Body into Process ........................................42

Figure 29 Tightening the Clasp Nut..........................................................43

Figure 30 Installing the DMT348 Probe Through a Ball Valve

Assembly..................................................................................45

Figure 31 Probe in Leak Screw Installation..............................................47

Figure 32 DM240FA with Probe...............................................................48

Figure 33 Example of Installing the Probe Directly on the Process Pipe.49

Figure 34 Sampling Cells DMT242SC2 and DMT242SC ........................50

Figure 35 Installing the Probe in High Temperatures...............................51

Figure 36 Power Supply Module ..............................................................52

Figure 37 Galvanic Output Isolation Module............................................57

Figure 38 Third Analog Output.................................................................57

Figure 39 Third Analog Output Selection.................................................58

Figure 40 Relay Module ...........................................................................60

Figure 41 RS-422/485 Module .................................................................61

Figure 42 4-Wire RS-485 Bus ..................................................................63

Figure 43 2-Wire RS-485 Bus ..................................................................64

Figure 44 LAN Interface Module...............................................................66

Figure 45 WLAN Interface Module...........................................................67

Figure 46 Data Logger Module.................................................................69

Figure 47 Pinout of the Optional 8-Pin Connector....................................70

Figure 48 Basic Display............................................................................72

Figure 49 Graphical Display.....................................................................73

Figure 50 Graphical Display with Data Logger.........................................74

Figure 51 Main Views...............................................................................75

Figure 52 Alarm Limits Shown on Graph Screen.....................................79

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8 ___________________________________________________________________ M210704EN-F

Figure 53 Display Alarm Active.................................................................79

Figure 54 Display Alarms..........................................................................80

Figure 55 Modifying an Alarm Limit..........................................................80

Figure 56 Service Port Connector and User Port Terminal on the

Motherboard .............................................................................82

Figure 57 Connection Example between PC Serial Port and User Port ..83

Figure 58 Network Interface Menu ...........................................................87

Figure 59 IP Configuration Menu..............................................................87

Figure 60 Wireless LAN Settings..............................................................90

Figure 61 Entering Network SSID.............................................................90

Figure 62 Selecting the Wireless Network Type.......................................90

Figure 63 Web Configuration Interface for WLAN....................................93

Figure 64 Opening a Serial Connection....................................................94

Figure 65 Opening a Telnet Connection...................................................95

Figure 66 Pressure Set Buttons on the Motherboard.............................107

Figure 67 Device Information on Display...............................................110

Figure 68 Current/Voltage Switches of Output Modules ........................124

Figure 69 Measurement-Based Relay Output Modes............................130

Figure 70 FAULT/ONLINE STATUS Relay Output Modes.....................132

Figure 71 Relay Availability ....................................................................134

Figure 72 Following AutoCal on the Display...........................................139

Figure 73 Sensor Purge Settings............................................................140

Figure 74 Performing Sensor Purge.......................................................140

Figure 75 Serial Interface Settings .........................................................145

Figure 76 IP Configuration......................................................................147

Figure 77 Wireless LAN Settings............................................................147

Figure 78 Communication Protocol ........................................................148

Figure 79 MODBUS Counters................................................................150

Figure 80 Error Indicator and Error Message.........................................154

Figure 81 Starting the Adjustment..........................................................160

Figure 82 Performing Purge ...................................................................160

Figure 83 Following the RH Trend on Graphical Display .......................161

Figure 84 Ending Adjustment of Point 1.................................................161

Figure 85 Proceeding to Adjustment of Point 2......................................161

Figure 86 Completing Adjustment of Point 2..........................................161

Figure 87 Following Stabilization............................................................163

Figure 88 Proceeding with T d/f Adjustment............................................163

Figure 89 Completing T d/f Adjustment....................................................163

Figure 90 Dewpoint Accuracy Graph......................................................169

Figure 91 DMT340 Transmitter Body Dimensions .................................176

Figure 92 WLAN Antenna Dimensions...................................................177

Figure 93 Sampling Cell Dimensions......................................................177

Figure 94 DMT342 Probe Dimensions ...................................................178

Figure 95 DMT344 Probe Dimensions ...................................................178

Figure 96 DMT347 Probe Dimensions ...................................................179

Figure 97 DMT348 Standard Probe Dimensions....................................179

Figure 98 NPT 1/2" Nut Dimensions.......................................................180

Figure 99 DMT348 Optional 400mm Probe Dimensions........................180

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