Vaisala BAROCAP PTB330 Guide de l'utilisateur Page 57
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Chapter 4 ________________________________________________________________ Operation
VAISALA_______________________________________________________________________ 55
Using Serial Line
Pressure 3h trend and tendency reading is also available through serial
line. Key in the lines below:
>form "trend=" P3H " " "tend" A3H #RN
>
For more information on the Form command, see section Changing
Quantities and Units on page 76.
Missing Trend
When the pressure tendency has not yet been calculated, that is, the
device has been powered-up less than three hours ago, the PTB330
barometer outputs a code "*" . The absence of the pressure trend is
indicated in a similar manner, too.
Graphic History
The graphical display shows the data trend of the selected quantities,
one at a time. The graph is updated automatically while measuring. Use
the following functions in the graphical display:
- Press the NEXT button to have the trend graph and max/min graph
in turns and browse through the quantities selected for display.
- Press the EXIT button to return to the basic display.
8 = Steady or increasing, then decreasing; or decreasing then
decreasing more rapidly; atmospheric pressure now lower
than three hours ago
Source: The World Meteorological Organization (WMO) publication
Manual on Codes Vol. 1.1, International Codes, Part A -
Alphanumerical Codes, 1995 Edition, WMO - No. C, Code Table
0200:a.
- USER'S GUIDE 1
- Table of Contents 3
- CHAPTER 4 4
- CHAPTER 5 6
- CHAPTER 6 6
- CHAPTER 7 6
- APPENDIX A 7
- APPENDIX B 7
- APPENDIX C 7
- List of Figures 9
- List of Tables 11
- GENERAL INFORMATION 13
- General Safety Considerations 14
- Feedback 14
- ESD Protection 15
- Recycling 16
- Trademarks 16
- License Agreement 16
- Warranty 17
- PRODUCT OVERVIEW 19
- Pressure Measurement 20
- 0705-091 22
- 0508-019 24
- 0503-004 24
- 0503-006 26
- Mounting Rain Shield with 28
- Installation Kit 28
- Panel Mounting Frame 29
- Cable Bushings 30
- 0604-059 31
- Alternate Wiring Systems 33
- 0703-019 34
- M-12 (8-Pin) Connector 36
- D-9 Connector 37
- AC Power Supply Module 38
- Installation 39
- Warnings 40
- Galvanic Isolation for Output 43
- Analog Output Module 44
- Relay Module (RELAY-1) 45
- 0503-037 47
- Figure 26 4-Wire RS-485 Bus 50
- Table 5 4-Wire (Switch 3:On) 50
- Figure 27 2-Wire RS-485 Bus 51
- OPERATION 53
- Menus and Navigation 54
- Reading 55
- 0708-035 56
- 0703-033 58
- Display Settings 60
- Rounding 61
- Backlight 61
- Contrast 61
- Keypad Lock 61
- Measuring Settings 62
- Diagnostic Settings 62
- Serial Interface Settings 63
- System Settings 64
- Factory Settings 65
- Clearing Graph Displays 65
- Relay Settings 66
- Analog Output Settings 68
- Serial Line Communication 70
- User Port Connection 71
- 1 2 3 4 5 72
- Service Port Connection 73
- Terminal Program Settings 73
- 0507-028 74
- 0507-027 74
- General Settings 78
- Changing Quantities and Units 78
- Measurement Related Commands 81
- User Port Serial Settings 83
- System Information Commands 85
- Resetting barometer By Using 86
- Serial Line 86
- Locking Menu/Keypad by Using 87
- Data Recording 88
- Selecting Data Recording 88
- Quantities 88
- View Recorded Data 89
- DELETE/UNDELETE 90
- Operation of Relays 91
- Quantity For Relay Output 91
- Hysteresis 92
- Enabling/Disabling Relays 94
- Setting Relay Outputs 95
- Testing Operation Of Relays 96
- Operation of RS-485 Module 97
- Networking Commands 97
- >INTV 10 min 99
- Output interval: 10 min 99
- Operation of Analog Output 101
- 0705-211 102
- 0706-031 102
- Analog Output Tests 104
- Periodic Maintenance 105
- Cleaning 105
- Error States 105
- 0706-070 106
- Pressure 109
- Pressure Adjustment 111
- Using Display/Keypad 116
- Using Serial Line 116
- Specifications 119
- Performance 119
- Operating Environment 120
- Inputs and outputs 121
- Mechanics 122
- Technical Specifications of 122
- Optional Modules 122
- Table 26 Relay Module 123
- Table 27 RS-485 Module 123
- Options and Accessories 124
- Dimensions (in mm) 125
- Technical Support 125
- Return Instructions 126
- Vaisala Service Centers 127
- CALCULATION FORMULAS 129
- 0706-110 130
- 0706-111 130
- Min...Max 132
- PA11A EMULATION MODE 135
- PA11A Message Format 136
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