Vaisala MAWS201 User's Guide Page 193
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Appendix A _________________________________________________________________ Glossary
VAISALA _______________________________________________________________________ 191
The temperature at which the air, if cooled, would reach saturation,
and at which dew would therefore begin to condense out on a solid
surface. The TD is calculated using the following formula:
15.273
b
2
a
c
bc
TD −
+×
×
=
where
a=
RH
100
ln
b= 2711.5TA2.1a15.0 +×−×
c = TA + 273.15
TA = Actual air temperature [°C] measured by MAWS
Dew point
(temperature)
RH = Actual relative humidity [%] measured by MAWS
DSI485A
Serial RS-485 communication module for MAWS.
DSU232
Serial RS-232 communication module for MAWS.
Global radiation
The total of direct solar radiation and diffuse sky radiation received
by a horizontal surface. Global radiation is measured by
pyranometers.
Gust
The peak momentary wind velocity within a given interval of time,
for example, 10 minutes. (V
max
-V
min
)/V
mean
.
Hexadecimal
Numbering system using the base number 16 and including the ten
decimal digits (0 to 9) along with six alpha digits (A to F).
Humidity
The water vapor content of the air. Weather station sensors
commonly measure relative humidity. Relative humidity is the ratio
of water vapor pressure present in a gas (P
w
) to the maximum
pressure of water vapor that could be present in the gas in that
temperature [P
ws
(t)].
%RH = 100 x P
w
/ P
ws
(t)
LED
Light Emitting Diode
Logger
The processing unit of the MAWS weather station. The electronics
of the logger take care of measuring, storing, and processing of the
measured quantities.
Logging
The process of storing the measured and calculated values in the
logger's memory.
- USER'S GUIDE 1
- Table of Contents 3
- CHAPTER 3 4
- CHAPTER 4 5
- CHAPTER 5 6
- List of Figures 8
- GENERAL INFORMATION 13
- ESD Protection 16
- Version Information 17
- Related Manuals 17
- Warranty 18
- PRODUCT OVERVIEW 19
- MAWS201 Mobile AWS 20
- 9809-001 21
- Product Nomenclature 22
- MAWS Software 23
- Operating Software 23
- Lizard Setup Software 24
- MAWS Terminal 24
- QML102 AWS Logger 25
- Memory Expansion Board 26
- (Optional) 26
- Power Supplies 27
- Internal Battery 28
- Solar Panels 28
- Mains Power Supplies 29
- 0201-006 30
- 0201-007 30
- 0105-016 35
- 0106-041 38
- 0105-029 40
- Communication Modules 42
- SATELLINE 3AS Radio Modem 44
- Masts for MAWS101 45
- Sensor Arm 46
- Carry Case Sets 46
- 0201-013 47
- 0201-014 47
- INSTALLATION 49
- Unpacking Instructions 50
- Siting the Station 50
- Humidity 51
- Precipitation 52
- Solar Radiation 52
- Soil Temperature 52
- Soil Moisture 53
- Water Level 53
- Fuel Moisture 54
- 0201-017 55
- 0201-018 55
- 0201-020 57
- 0201-021 57
- 0201-022 57
- Installing MAWS101 to a Mast 59
- On DKP102 59
- 0201-026 60
- 9908-003 62
- 9910-015 62
- Assembling the Tripod 65
- Installing Power Supply 66
- Installing Solar Panel 66
- 0201-028 67
- 0201-029 67
- 9806-016 69
- 9901-009 69
- 0011-042 70
- 0201-032 72
- Installing Pressure Sensor 74
- Installing Wind Sensor 75
- 0201-034 76
- 9806-062 78
- 9901-010 78
- 0002-011 80
- 0201-037 82
- 9902-004 82
- Installing Soil Temperature 84
- 0106-039 85
- 0106-038 85
- 0105-087 87
- On the Wooden Surface 89
- To a Pole Mast 89
- To the Sensor Arm 90
- Finalizing the Installation 90
- 0201-040 91
- 0201-042 95
- 0105-077 97
- 0105-078 97
- QMT107 Probe Extraction 99
- Figure 94 Probe Extraction 100
- Packing Instructions 101
- OPERATION 103
- Taking MAWS into Use 104
- Aligning the MAWS201 Station 104
- Quick Start Instructions 105
- 0201-044 106
- MAWS Terminal Main Window 108
- 0105-041 109
- Preferences Window 110
- Opening MAWS Service 112
- Connection 112
- Service connection opened 113
- Giving Commands 114
- Modifying Station Settings 115
- 0105-053 116
- MAWS Configuration File 118
- Selecting Configuration File 118
- Uploading Configuration File 119
- Data Logging 120
- Log Data Format 122
- Controlling Logging 122
- Freeing Up Logging Space 123
- Working with Data Log Files 123
- 0105-046 124
- Browsing Downloaded Files 126
- 0105-049 127
- 0105-050 127
- Using External Memory Card 129
- Resetting MAWS 130
- Table 25 Command Set 131
- MAINTENANCE 135
- Overall Checking 137
- Sensors and Accessories 137
- Solar Panel 137
- Wind Sensor 137
- 0009-022 139
- Air Temperature and Relative 140
- Humidity Sensor 140
- Pressure Sensor 141
- Precipitation Sensors 142
- 9901-031 144
- 9901-033 146
- Soil Temperature Sensors 148
- Soil Moisture Sensor 149
- Water Level Sensors 149
- Leaf Wetness Sensor 150
- Fuel Moisture Sensor 150
- Cable Maintenance 150
- Spare Parts 151
- Available Spare Parts 151
- Ordering Spare Parts 151
- TROUBLESHOOTING 153
- The LASTVAL Command 154
- Software Operation 155
- System Information 157
- Connection Problems 158
- Commands 159
- Battery Status 160
- Power Supply 161
- Getting Help 161
- Return Instructions 162
- TECHNICAL DATA 163
- Figure 120 Connector Blocks 164
- Wiring Diagrams 165
- 9806-064 166
- 0201-048 168
- Connectors 171
- Battery Charging 171
- Battery Sensing 172
- External Power Supply 172
- Solar Cell 173
- Lead Batteries 173
- Primary Cells 174
- Normal Charging 174
- Quick Charging 175
- Float Charging 176
- Temperature Protection 176
- Specifications 177
- QML102 Logger 177
- Accessories 178
- QMP201C) 179
- (inside QMP201C) 180
- Wind Sensors 181
- Solar Radiation Sensors 182
- Communication Devices 188
- Block Diagrams 189
- GLOSSARY 191
- 2711.5TA2.1a15.0 +×−× 193
- QFE PA e 194
- QFF QFE e 195
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