Vaisala PTU300 Guida Utente Scaricare il pdf (Pagina 169)

APPENDIX B_______________________________________________ CALCULATION FORMULAS

VAISALA ______________________________________________________________________ 167

APPENDIX B

CALCULATION FORMULAS

The PTU300 series transmitters measure relative humidity and

temperature. From these values dewpoint, mixing ratio, absolute

humidity and enthalpy in normal pressure are calculated using the

following equations:

1 2 ... 164 165 166 167 168 169 170 171 172 173

USER'S GUIDE 1
Table of Contents 3
CHAPTER 5 6
CHAPTER 6 6
List of Figures 8
List of Tables 9
GENERAL INFORMATION 11
Feedback 12
ESD Protection 12
Recycling 13
Regulatory Compliances 13
Trademarks 13
License Agreement 13
Warranty 14
PRODUCT OVERVIEW 15
Basic Features and Options 16
Pressure Measurement 17
0601-008 18
Probe Options 20
Warmed Probe PTU307 21
INSTALLATION 23
Standard Mounting without 24
Mounting Plate 24
0503-004 25
0503-040 25
Kit for Pole or Pipeline 27
0503-041 28
0509-151 28
Cable Bushings 30
Grounding the Cables 31
Alternate Wiring Systems 33
WARNING 34
8-Pin Connector 35
D-9 Connector 36
CAUTION 37
Probe Mounting 38
0507-024 39
0507-022 40
Temperature Probe (Optional) 42
Power Supply Module 43
Installation 44
Warnings 44
0506-030 47
Relays 49
RS-422/485 Interface 51
1 (not connected) RxB 52
2 (not connected) RxA 52
4 B TxB 52
5 A TxA 52
OPERATION 55
Basic Display 56
Reading 57
0604-055 58
Graphic History 60
Information Display 61
Menus and Navigation 62
Language Setting 63
Rounding Setting 63
Display Backlight Setting 63
Display Contrast Setting 64
Keypad Lock (Keyguard) 64
Menu PIN Lock 64
Factory Settings 65
Serial Line Communication 66
User Port Connection 66
Service Port Connection 67
Terminal Program Settings 68
0601-029 69
0601-030 69
List of Serial Commands 70
Getting Measurement Message 73
Setting time and date 75
General Settings 75
NMEA Data Format 79
GPS Commands 81
User Port Serial Settings 85
Pressure Average Calculation 88
Device Information 89
Serial Line 92
Locking Menu/Keypad by Using 92
Data Recording 93
Selecting Data Recording 93
Quantities 93
View Recorded Data 94
Deleting the Recorded Files 96
Analog Output Settings 96
0503-045 97
AMODE/ASEL 99
Analog Output Tests 100
Setting 101
Operation of Relays 102
Quantity For Relay Output 102
Hysteresis 103
Enabling/Disabling Relays 105
Setting Relay Outputs 106
Testing Operation Of Relays 108
Operation of RS-485 Module 109
Networking Commands 110
Sensor Functions 113
Chemical Purge (Optional) 113
Manual Chemical Purge 114
Chemical Purge in Power Up 115
Using Buttons On Motherboard 115
Using Serial Line 116
Setting Sensor Heating 117
MAINTENANCE 121
Changing the Sensor 122
Error States 123
Table 18 Error Messages 124
CALIBRATION AND ADJUSTMENT 127
0508-013 128
Relative Humidity Adjustment 132
Using Push-Buttons 132
Using Display/Keypad 133
Temperature Adjustment 137
TECHNICAL DATA 143
Relative Humidity 144
Optional Temperature Probe 145
Calculated Variables 146
1013 mbar) 147
Dewpoint Temperature (PTU307 148
Warmed Probe Option) 148
Inputs and Outputs 149
Mechanics 149
Technical Specifications of 150
Optional Modules 150
Relay Module 151
RS-485 Module 151
Options and Accessories 151
Item code 152
Dimensions (in mm and inch) 153
12 (0.47) 154
120 (4.72) 154
Temperature Probe 155
Technical Support 155
Return Instructions 156
Vaisala Service Centers 157
PROBE INSTALLATION KITS AND 159
INSTALLATION EXAMPLES 159
PTU307) 160
RH Probe Installation 161
0508-016 162
0508-018 164
0508-015 164
0507-015 167
0601-044 168
CALCULATION FORMULAS 169

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Vaisala PTU300 Guida Utente Pagina 169

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