Vaisala BAROCAP PTB330 User manual

USER'S GUIDE
Vaisala BAROCAP® Digital Baromete
r
PTB330
M210855EN-C

PUBLISHED BY
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© Vaisala 2008
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FIN-00421 Helsinki
Finland

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VAISALA________________________________________________________________________ 1
Table of Contents
CHAPTER 1
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Contents of This Manual . . . . . . . . . . . . . . . . . . . . . . . . . .11
General Safety Considerations . . . . . . . . . . . . . . . . . . . . .12
Feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Product Related Safety Precautions . . . . . . . . . . . . . . . . . .13
ESD Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Recycling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
License Agreement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
CHAPTER 2
PRODUCT OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Introduction to PTB330 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Basic Features and Options . . . . . . . . . . . . . . . . . . . . . . .17
Pressure Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Outer Structure of the Barometer . . . . . . . . . . . . . . . . . . . .19
Inner Structure of the Barometer . . . . . . . . . . . . . . . . . . . .20
CHAPTER 3
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Mounting the Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Standard Mounting without Mounting Plate . . . . . . . . . . .21
Wall Mounting with Wall Mounting Kit . . . . . . . . . . . . . . . .22
Mounting with DIN Rail Installation Kit . . . . . . . . . . . . . . . .23
Pole Installation with Installation Kit for Pole or Pipeline . .24
Mounting Rain Shield with Installation Kit . . . . . . . . . . . . .26
Panel Mounting Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
General about Wiring and Grounding . . . . . . . . . . . . . . . . .28
Cable Bushings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Grounding the Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Grounding the Barometer Housing . . . . . . . . . . . . . . . . . .31
Alternate Wiring Systems . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Signal and Power Supply Wiring . . . . . . . . . . . . . . . . . . . .32
M-12 (8-Pin) Connector . . . . . . . . . . . . . . . . . . . . . . . . . .34
D-9 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Optional Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
AC Power Supply Module . . . . . . . . . . . . . . . . . . . . . . . . .36
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

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Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Galvanic Isolation for Output . . . . . . . . . . . . . . . . . . . . . . .41
Analog Output Module . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Installation and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . 42
Relay Module (RELAY-1) . . . . . . . . . . . . . . . . . . . . . . . . . .43
Installation and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . 43
Selecting the Activation State of the Relay . . . . . . . . . 44
RS-422/485-1 Interface Module . . . . . . . . . . . . . . . . . . . . .46
Installation and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . 46
CHAPTER 4
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
Display/Keypad (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . .51
Basic Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
Menus and Navigation . . . . . . . . . . . . . . . . . . . . . . . . . 52
Pressure 3h Trend and Tendency Reading . . . . . . . . . . .53
Using Basic Display . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Pressure tendency graphics and codes . . . . . . . . . 53
Using Serial Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Missing Trend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Graphic History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
Information Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
Display Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
Changing Quantities . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Changing Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Rounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Backlight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Contrast . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Keypad Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Measuring Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
Diagnostic Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
Serial Interface Settings . . . . . . . . . . . . . . . . . . . . . . . . . . .61
System Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
Language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Menu PIN Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Factory Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Clearing Graph Displays . . . . . . . . . . . . . . . . . . . . . . . 63
Relay Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
Relay Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Testing the Operation of Relays. . . . . . . . . . . . . . . . . . 65
Analog Output Settings . . . . . . . . . . . . . . . . . . . . . . . . . . .66
Analog Output Quantities. . . . . . . . . . . . . . . . . . . . . . . 66
Testing the Operation of Analog Outputs. . . . . . . . . . . 66
Analog Output Fault Indication. . . . . . . . . . . . . . . . . . . 67
MI70 Link Interface Software for Data Handling . . . . . . . . .68
Serial Line Communication . . . . . . . . . . . . . . . . . . . . . . . . .68
User Port Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
Service Port Connection . . . . . . . . . . . . . . . . . . . . . . . . . .71
Terminal Program Settings . . . . . . . . . . . . . . . . . . . . . . . .71
List of Serial Commands . . . . . . . . . . . . . . . . . . . . . . . . . . .73

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General Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76
Changing Quantities and Units . . . . . . . . . . . . . . . . . . . . .76
Using Serial Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Measurement Related Commands . . . . . . . . . . . . . . . . . .79
TQFE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
DPMAX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
HHCP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
HQFE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
HQNH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
PSTAB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
User Port Serial Settings . . . . . . . . . . . . . . . . . . . . . . . . . .81
Using Serial Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
SMODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
INTV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
ECHO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
System Information Commands . . . . . . . . . . . . . . . . . . . . .83
?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
ERRS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
VERS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Resetting barometer By Using Serial Line . . . . . . . . . . . . .84
RESET. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Locking Menu/Keypad by Using Serial Line . . . . . . . . . . .85
LOCK. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Data Recording . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86
Selecting Data Recording Quantities . . . . . . . . . . . . . . . . .86
DSEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
View Recorded Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87
DIR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
PLAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
DELETE/UNDELETE . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88
Operation of Relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89
Quantity For Relay Output . . . . . . . . . . . . . . . . . . . . . . . . .89
Measurement-Based Relay Output Modes . . . . . . . . . . . .89
Relay Setpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Hysteresis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Relay Indicating Barometer Error Status . . . . . . . . . . . . . .91
Enabling/Disabling Relays . . . . . . . . . . . . . . . . . . . . . . . . .92
Setting Relay Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . .93
RSEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Testing Operation Of Relays . . . . . . . . . . . . . . . . . . . . . . .94
RTEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94
Operation of RS-485 Module . . . . . . . . . . . . . . . . . . . . . . . .95
Networking Commands . . . . . . . . . . . . . . . . . . . . . . . . . . .95
SDELAY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
SERI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
ECHO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
SMODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
INTV. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
ADDR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
SEND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
SCOM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

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OPEN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
CLOSE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Operation of Analog Output . . . . . . . . . . . . . . . . . . . . . . . .99
Changing Output Mode and Range . . . . . . . . . . . . . . . . . .99
Analog Output Quantities . . . . . . . . . . . . . . . . . . . . . . . . .101
Analog Output Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . .102
ATEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Analog Output Fault Indication Setting . . . . . . . . . . . 102
CHAPTER 5
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103
Periodic Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103
Error States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103
CHAPTER 6
CALIBRATION AND ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . .107
Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .107
Opening and Closing the Adjustment Mode . . . . . . . . . . .108
Pressure Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
Adjustments Using Display/Keypad . . . . . . . . . . . . . . . . .110
1-point Adjustment Using Serial Line. . . . . . . . . . . . . 111
LCP1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
MPCP1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Analog Output Adjustment (Ch1) . . . . . . . . . . . . . . . . . . .113
Using Display/Keypad . . . . . . . . . . . . . . . . . . . . . . . . 114
Using Serial Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Feeding Adjustment Information . . . . . . . . . . . . . . . . . . .115
Using Display/Keypad . . . . . . . . . . . . . . . . . . . . . . . . 115
Using Serial Line. . . . . . . . . . . . . . . . . . . . . . . . . . 115
CHAPTER 7
TECHNICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .117
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .117
Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .117
Barometric pressure range 500 ... 1100 hPa. . . . . . . 117
Barometric pressure range 50 ... 1100 hPa. . . . . . . . 117
Operating Environment . . . . . . . . . . . . . . . . . . . . . . . . . .118
Inputs and outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .119
Mechanics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .120
Technical Specifications of Optional Modules . . . . . . . . .120
Options and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . .122
Dimensions (in mm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .123
Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .123
Return Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .124
Vaisala Service Centers . . . . . . . . . . . . . . . . . . . . . . . . . . .125

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APPENDIX A
CALCULATION FORMULAS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .127
APPENDIX B
UNIT CONVERSION TABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .129
APPENDIX C
PA11A EMULATION MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .133
Activating the PA11A Emulation Mode . . . . . . . . . . . . . . .133
PA11A Message Format . . . . . . . . . . . . . . . . . . . . . . . . . . .134

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List of Figures
Figure 1 Barometer Body. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Figure 2 Inside of Open Barometer . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Figure 3 Standard Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Figure 4 Mounting with Wall Mounting Kit . . . . . . . . . . . . . . . . . . . . . . .22
Figure 5 Dimensions of Plastic Mounting Plate . . . . . . . . . . . . . . . . . . .23
Figure 6 Mounting with DIN Rail Installation Kit. . . . . . . . . . . . . . . . . . .23
Figure 7 Vertical Pole (side). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Figure 8 Vertical Pole (front) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Figure 9 Horizontal Pole. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Figure 10 Mounting with Metal Wall Mounting Plate . . . . . . . . . . . . . . . .25
Figure 11 Dimensions of Metal Mounting Plate (mm) . . . . . . . . . . . . . . .26
Figure 12 Mounting Rain Shield with Installation Kit . . . . . . . . . . . . . . . .26
Figure 13 Panel Mounting Frame. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Figure 14 Panel Mounting Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . .28
Figure 15 Cable Bushings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Figure 16 Grounding the Screen of Electrical Cable . . . . . . . . . . . . . . . .30
Figure 17 Screw Terminal Block on Motherboard . . . . . . . . . . . . . . . . . .32
Figure 18 Wiring of Optional M-12 (8-Pin) Connector . . . . . . . . . . . . . . .34
Figure 19 Wiring of Optional D-9 Connector . . . . . . . . . . . . . . . . . . . . . .35
Figure 20 AC Power Supply Module . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Figure 21 Galvanic Output Isolation. . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Figure 22 Analog Output 1 module . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Figure 23 Analog Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Figure 24 Relay Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Figure 25 RS-485-1 Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Figure 26 4-Wire RS-485 Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
Figure 27 2-Wire RS-485 Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
Figure 28 Basic Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
Figure 29 Main Menu (main level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
Figure 30 P3H Tendency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
Figure 31 Pressure Tendency Description. . . . . . . . . . . . . . . . . . . . . . . .54
Figure 32 Graphical Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
Figure 33 Device Information on Display . . . . . . . . . . . . . . . . . . . . . . . . .57
Figure 34 Checking Stability of the Measurement . . . . . . . . . . . . . . . . . .61
Figure 35 Relay Indicators on Display . . . . . . . . . . . . . . . . . . . . . . . . . . .64
Figure 36 Service Port Connector and User Port Terminal on
Motherboard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
Figure 37 Connection Example Between PC Serial Port and User Port .70
Figure 38 Starting Hyper Terminal Connection . . . . . . . . . . . . . . . . . . . .72
Figure 39 Connecting to Hyper Terminal . . . . . . . . . . . . . . . . . . . . . . . . .72
Figure 40 Hyper Terminal Serial Port Settings. . . . . . . . . . . . . . . . . . . . .73
Figure 41 Relay Output Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90
Figure 42 FAULT/ONLINE STATUS Relay Output Modes . . . . . . . . . . .92
Figure 43 Current/Voltage Switches of Output Modules . . . . . . . . . . . .100
Figure 44 Dip Switch Selection Example . . . . . . . . . . . . . . . . . . . . . . . .100

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8 _______________________________________________________________________________
Figure 45 Error Indicator and Error Message. . . . . . . . . . . . . . . . . . . . .104
Figure 46 Adjustment Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
Figure 47 PTB330 Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
Figure 48 Barometer Body Dimensions . . . . . . . . . . . . . . . . . . . . . . . . .123
Figure 49 Pressure Conversion Chart . . . . . . . . . . . . . . . . . . . . . . . . . .129

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VAISALA________________________________________________________________________ 9
List of Tables
Table 1 Quantities Measured by PTB330. . . . . . . . . . . . . . . . . . . . . . . . .18
Table 2 Pin Assignments to RS-232-/485 Serial Output. . . . . . . . . . . . . .34
Table 3 Pin Assignments to RS-232/485 Serial Output . . . . . . . . . . . . . .35
Table 4 Connecting the Twisted Pair Wires to the Screw Terminals . . . .47
Table 5 4-Wire (Switch 3:On) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
Table 6 2-Wire (Switch 3:Off) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
Table 7 Periods for Trend and Max/Min Calculations. . . . . . . . . . . . . . . .56
Table 8 Graph Information Messages in Cursor Mode. . . . . . . . . . . . . . .56
Table 9 Default Serial Communication Settings for the User Port . . . . . .69
Table 10 Fixed Communication Settings for Service Port. . . . . . . . . . . . . .71
Table 11 The modifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
Table 12 Output Quantities and Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . .78
Table 13 Selection of Output Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82
Table 14 Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104
Table 15 Adjustment and Calibration Commands for Barometer
Module P1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .108
Table 16 Barometric Pressure range 500 ... 1100 hPa at 20°C . . . . . . . . .117
Table 17 Barometric pressure range 50 ... 1100 hPa at 20°C . . . . . . . . . .117
Table 21 Operating Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .118
Table 18 Temperature Dependence**** . . . . . . . . . . . . . . . . . . . . . . . . . . .118
Table 19 Total Accuracy at -40 ... +60°C (-40 ... +140 °F) . . . . . . . . . . . . .118
Table 20 Long Term Stability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .118
Table 22 Inputs and outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .119
Table 23 Mechanics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .120
Table 24 AC Power Supply Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .120
Table 25 Analog Output Module AOUT-1. . . . . . . . . . . . . . . . . . . . . . . . . .120
Table 26 Relay Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .121
Table 27 RS-485 Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .121
Table 28 Options and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .122
Table 29 Unit Conversion Table for all Pressure Quantities (Excluding
deltaP and P3h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .130
Table 30 Unit Conversion Table for Difference Pressure deltaP and
Pressure Trend P3h Quantities . . . . . . . . . . . . . . . . . . . . . . . . . .130
Table 31 Unit Conversion Table for Settings Pressure Stability PSTAB
and Maximum Pressure Difference deltaPMAX. . . . . . . . . . . . . .130
Table 32 Unit Conversion Table for Settings HHCP and HQFE. . . . . . . . .131
Table 33 Unit Conversion Table for Settings HQNH. . . . . . . . . . . . . . . . . .131
Table 34 Unit Conversion Table for Setting TQFE . . . . . . . . . . . . . . . . . . .131

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10 ______________________________________________________________________________

Chapter 1 ________________________________________________________ General Information
VAISALA_______________________________________________________________________ 11
CHAPTER 1
GENERAL INFORMATION
This chapter provides general notes for the manual and the product.
About This Manual
This manual provides information for installing, operating, and
maintaining Vaisala BAROCAP®Digital Barometer PTB330.
Contents of This Manual
This manual consists of the following chapters:
- Chapter 1, General Information: This chapter provides general
notes for the manual and the product.
- Chapter 2, Product Overview: This chapter introduces the features,
advantages, and the product nomenclature of PTB330.
- Chapter 3, Installation : This chapter provides you with
information that is intended to help you install the product.
- Chapter 4, Operation: This chapter contains information that is
needed to operate the product.
- Chapter 5, Maintenance: This chapter contains information that is
needed in basic maintenance of the product.

User's Guide ______________________________________________________________________
12 __________________________________________________________________ M210855EN-C
- Chapter 6, Calibration and Adjustment: This chapter contains
instructions for performing the calibration and adjustment of the
product.
- Chapter7, Technical Data: This chapter providesthetechnicaldata
of the product.
- Appendix A, Calculation Formulas: This appendix contains the
calculation formulas used by the product.
- Appendix B, Unit conversion tables: This appendix contains the
unit conversion tables.
- Appendix C, PA11A Emulation Mode: This appendix describes
the PA11A emulation mode of the PTB330 series.
General Safety Considerations
Throughoutthemanual, importantsafetyconsiderationsare highlighted
as follows:
Feedback
Vaisala Customer Documentation Team welcomes your comments and
suggestions on the quality and usefulness of this publication. If you find
errors or have other suggestions for improvement, please indicate the
chapter, section, and page number. You can send comments to us by e-
mail: [email protected]
WARNING Warning alerts you to a serious hazard. If you do not read and follow
instructions very carefully at this point, there is a risk of injury or even
death.
CAUTION Caution warns you of a potential hazard. If you do not read and follow
instructions carefully at this point, the product could be damaged or
important data could be lost.
NOTE Note highlights important information on using the product.

Chapter 1 ________________________________________________________ General Information
VAISALA_______________________________________________________________________ 13
Product Related Safety Precautions
The product delivered to you has been tested for safety and approved as
shipped from the factory. Note the following precautions:
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.
WARNING Ground the product, and verify outdoor installation grounding
periodically to minimize shock hazard.
CAUTION Do not modify the unit. Improper modification can damage the
product or lead to malfunction.

User's Guide ______________________________________________________________________
14 __________________________________________________________________ M210855EN-C
Recycling
Trademarks
Microsoft®, Windows®, Windows NT®, and Windows® 2000 are
registered trademarks of Microsoft Corporation in the United States
and/or other countries.
License Agreement
All rights to any software are held by Vaisala or third parties. The
customer is allowed to use the software only to the extent that is
provided by the applicable supply contract or Software License
Agreement.
Recycle all applicable material.
Dispose of batteries and the unit according to statutory regulations.
Do not dispose of with regular household refuse.

Chapter 1 ________________________________________________________ General Information
VAISALA_______________________________________________________________________ 15
Warranty
Vaisala hereby represents and warrants all Products
manufactured by Vaisala and sold hereunder to be free
from defects in workmanship or material during a
period of twelve (12) months from the date of delivery
save for products for which a special warranty is given.
If any Product proves however to be defective in
workmanship or material within the period herein
provided Vaisala undertakes to the exclusion of any
other remedy to repair or at its own option replace the
defective Product or part thereof free of charge and
otherwise on the same conditions as for the original
Product or part without extension to original warranty
time. Defective parts replaced in accordance with this
clause shall be placed at the disposal of Vaisala.
Vaisala also warrants the quality of all repair and
service works performed by its employees to products
sold by it. In case the repair or service works should
appear inadequate or faulty and should this cause
malfunction or nonfunction of the product to which the
service was performed Vaisala shall at its free option
either repair or have repaired or replace the product in
question. The working hours used by employees of
Vaisala for such repair or replacement shall be free of
charge to the client. This service warranty shall be
valid for a period of six (6) months from the date the
service measures were completed.
This warranty is however subject to following
conditions:
a) A substantiated written claim as to any alleged
defects shall have been received by Vaisala within
thirty (30) days after the defect or fault became known
or occurred, and
b) The allegedly defective Product or part shall, should
Vaisala so require, be sent to the works of Vaisala or to
such other place as Vaisala may indicate in writing,
freight and insurance prepaid and properly packed and
labelled, unless Vaisala agrees to inspect and repair the
Product or replace it on site.
This warranty does not however apply when the defect
has been caused through
a) normal wear and tear or accident;
b) misuse or other unsuitable or unauthorized use of
the Product or negligence or error in storing,
maintaining or in handling the Product or any
equipment thereof;
c) wrong installation or assembly or failure to service
the Product or otherwise follow Vaisala's service
instructions including any repairs or installation or
assembly or service made by unauthorized personnel
not approved by Vaisala or replacements with parts not
manufactured or supplied by Vaisala;
d) modifications or changes of the Product as well as
any adding to it without Vaisala's prior authorization;
e) other factors depending on the Customer or a third
party.
Notwithstanding the aforesaid Vaisala's liability under
this clause shall not apply to any defects arising out of
materials, designs or instructions provided by the
Customer.
This warranty is expressly in lieu of and excludes all
other conditions, warranties and liabilities, express or
implied, whether under law, statute or otherwise,
including without limitation any implied warranties of
merchantability or fitness for a particular purpose and
all other obligations and liabilities of Vaisala or its
representatives with respect to any defect or deficiency
applicable to or resulting directly or indirectly from the
Products supplied hereunder, which obligations and
liabilities are hereby expressly cancelled and waived.
Vaisala's liability shall under no circumstances exceed
the invoice price of any Product for which a warranty
claim is made, nor shall Vaisala in any circumstances
be liable for lost profits or other consequential loss
whether direct or indirect or for special damages.

User's Guide ______________________________________________________________________
16 __________________________________________________________________ M210855EN-C

Chapter 2 __________________________________________________________ Product Overview
VAISALA_______________________________________________________________________ 17
CHAPTER 2
PRODUCT OVERVIEW
This chapter introduces the features, advantages, and the product
nomenclature of PTB330.
Introduction to PTB330
Vaisala BAROCAP®Digital Barometer PTB330 provides reliable
pressure measurement in a wide range of applications. Digital outputs
RS-232 (standard) or RS-422/485 (optional) can be selected.
Alternatively, analog outputs can be chosen between current and
optional voltage signals. A local graphical display is available as well.
The quantities measured and calculated by PTB330 are presented in
Table 1 on page 18.
The PTB330 barometer is available with one, two or three barometer
modules. The barometer can be used successfully both in accurate
pressure measurement applications at room temperature and in
demanding automatic weather station applications.
Basic Features and Options
- for applications in industrial and meteorological areas
- 1...3 barometer modules (sensors)
- graphicaldisplayshowingthe measurement trends ofthequantities
chosen by the user

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18 __________________________________________________________________ M210855EN-C
- user friendly, multilingual display
- calculated output quantities, QFE and QNH, available
- barometer mounting accessories for multiple installation purposes
- service port for MI70 Link Interface Software or PC
- four module slots
- optional modules: power supply module, RS-485 module, analog
output module and relay module
- optional USB cable
- IP 65 housing
- screw terminal, optional M12 connector or D-9 connector
Pressure Measurement
The PTB330 series barometers use a BAROCAP®silicon capacitive
absolute pressure sensor developed by Vaisala for barometric pressure
measurement applications. The BAROCAP®sensor has excellent
hysteresis and repeatability characteristics, low temperature
dependence and a very good long-term stability. The ruggedness of the
BAROCAP®sensor is outstanding and the sensor is resistant to
mechanical and thermal shocks.
The measurement principle of the PTB330 series digital barometers is
based on an advanced RC oscillator and reference capacitors against
which the capacitive pressure sensor is continuously measured. The
microprocessor of the barometer performs compensation for pressure
linearity and temperature dependence.
Table 1 Quantities Measured by PTB330
Quantity Abbreviation
Pressure (measures average
pressure from P1, P2, and P3)P
Pressure from barometer
module 1 or 2 or 3 P1, P2, and P3
Pressure trend and tendency P3h
Pressure difference (P1 -P2) deltaP12
Pressure difference (P1 -P3) deltaP13
Pressure difference (P2-P3) deltaP23 (available on serial port
only)
QNH pressure QNH