Vaisala PTU300 Podręcznik Użytkownika Strona 66
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USER'S GUIDE____________________________________________________________________
64 __________________________________________________________________ M210796EN-E
where:
6 = Decreasing, then steady; or decreasing, then decreasing more
slowly; atmospheric pressure now lower than three hours ago
7 = Decreasing (steadily or unsteadily); atmospheric pressure now
lower than three hours ago
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. I.1, International Codes, Part A - Alphanumerical
Codes, 1995 Edition, WMO - No. 306. Section C, Code Table 0200: a.
Using Serial Line
Pressure 3h trend and tendency reading is also available through serial
line. Key in the lines below:
>form "P=" p "trend=" p3h "tend=" a3h #r#n
OK
>send <cr>
P= 1024.7trend= 0.8tend=1
The last line shows the values.
For more information on the Form command, see the section Changing
Quantities and Units, starting on page 92.
Missing trend
In addition to this the PTU300 series barometers output a code "*" when
the pressure tendency has not yet been calculated that is, less than three
hours have elapsed since the power-up of the barometer. The absence of
the pressure trend is indicated in a similar manner, too.
NOTE
When the P
3H
tendency is chosen as a display quantity, the PTU300
logs actual measured pressure, instead of trend or tendency value.
- USER'S GUIDE 1
- Table of Contents 3
- CHAPTER 4 4
- CHAPTER 5 7
- CHAPTER 6 7
- CHAPTER 7 8
- APPENDIX A 8
- APPENDIX B 9
- List of Figures 10
- List of Tables 12
- GENERAL INFORMATION 13
- Feedback 14
- ESD Protection 15
- Recycling 15
- Regulatory Compliances 16
- Patent Notice 18
- Trademarks 18
- License Agreement 18
- Warranty 18
- PRODUCT OVERVIEW 19
- Pressure Measurement 20
- Structure of the Transmitter 22
- 0604-060 23
- 0911-067 25
- INSTALLATION 27
- 0503-004 28
- 0804-065 28
- 0503-002 30
- 0503-041 32
- 0509-151 32
- 0704-002 34
- 0804-083 34
- Grounding the Cables 36
- Alternate Wiring Systems 37
- WARNING 38
- 8-Pin Connector 39
- D-9 Connector 40
- CAUTION 41
- Probe Mounting 42
- 0507-024 43
- 0507-022 43
- Temperature Probe (Optional) 45
- Optional Modules 46
- Installation 47
- Warnings 48
- Third Analog Output 51
- Installation and Wiring 52
- RS-422/485 Interface 55
- Figure 33 4-Wire RS-485 Bus 57
- LAN Interface 58
- WLAN Interface 59
- Data Logger Module 60
- 0706-068 62
- Reading 64
- 0604-055 65
- Graphic History 67
- Information Display 68
- Menus and Navigation 69
- Changing the Language 70
- Rounding Setting 71
- Display Backlight Setting 71
- Display Contrast Setting 71
- Keypad Lock (Keyguard) 71
- Menu PIN Lock 72
- Factory Settings 72
- Display Alarms 73
- 0802-069 74
- 0802-070 74
- User Port Connection 76
- Service Port Connection 77
- Using the Service Port 78
- LAN Communication 79
- Wireless LAN Configuration 83
- Telnet Settings 85
- 0802-114 86
- 0810-071 88
- Serial Line 91
- Outputting Reading Once 92
- General Settings 94
- Date and Time 97
- N_#r #n 99
- GPS Commands 100
- Using Display/Keypad 101
- Using Serial Line 102
- User Port Serial Settings 104
- Pressure Average Calculation 107
- Device Information 108
- Data Recording 111
- View Recorded Data 112
- Analog Output Settings 115
- 0503-045 116
- AMODE/ASEL 118
- Analog Output Tests 119
- Operation of Relays 121
- Hysteresis 122
- 0610-077 123
- Testing Operation Of Relays 126
- Networking Commands 128
- Sensor Functions 131
- Manual Chemical Purge 132
- Chemical Purge in Power Up 133
- Using Buttons On Motherboard 133
- Setting Sensor Heating 135
- Display/Keypad 136
- MAINTENANCE 137
- Changing the Sensor 138
- Error States 139
- Table 33 Error Messages 140
- Technical Support 141
- Return Instructions 141
- Vaisala Service Centers 142
- CALIBRATION AND ADJUSTMENT 143
- 0508-013 144
- Relative Humidity Adjustment 148
- Temperature Adjustment 152
- TECHNICAL DATA 157
- Relative Humidity 158
- Optional Temperature Probe 159
- Calculated Variables 160
- 1013 mbar) 161
- Probe Option) 162
- Inputs and Outputs 163
- Mechanics 163
- Modules 164
- Relay Module 165
- RS-485 Module 165
- LAN Interface Module 165
- WLAN Interface Module 165
- Options and Accessories 166
- Dimensions (mm/inch) 168
- 0804-033 169
- 12 (0.47) 170
- 120 (4.72) 170
- Temperature Probe 171
- PROBE INSTALLATION KITS AND 173
- INSTALLATION EXAMPLES 173
- PTU307) 174
- 0508-016 176
- 0508-018 178
- 0508-015 178
- 0601-044 180
- 99.621 182
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