Vaisala INTERCAP HMDW80 SERIES Especificaciones Pagina 8
- Pagina / 187
- Tabla de contenidos
- MARCADORES
Valorado. / 5. Basado en revisión del cliente
6
How to Choose the Right Instrument for
Measuring Humidity and Dew Point
Partial Pressure of
Water Vapor
Humidity is simply water in its
gaseous phase, properly called water
vapor. Because water vapor is a gas,
most of the common gas laws apply
to it, including Dalton's law of partial
pressures. Dalton's law says that the
total pressure of a gas is equal to the
sum of the partial pressures of each
of the component gases:
P
total
= P
1
+ P
2
+ P
3…
If we consider air, the equation means
that the total atmospheric pressure
of 1.013 bar (14.7psia) is the sum of
the partial pressures of nitrogen,
oxygen, water vapor, argon, carbon
dioxide, and various other gases in
trace amounts.
Definition of Water Vapor
Pressure
Water vapor pressure (P
w
) is the
pressure exerted by the water vapor
present in air or a gas. Temperature
dictates the maximum partial
pressure of water vapor. This
maximum pressure is known as
saturation vapor pressure (P
ws
).
The higher the temperature, the
higher the saturation vapor pressure
and the more water vapor the air
can hold. Thus, warm air has a
greater capacity for water vapor
than cold air.
This paper discusses the following
topics in order to help in selecting
the right humidity instrument:
• Differenthumidityparameters
• Environmentalconditionsthat
influence the choice of humidity
instrument
What is Humidity?
An Introduction
to Humidity
Parameters
Learn the basics and get the best out of your humidity measurements.
• Sensorpropertiesthatinfluence
the choice of humidity instrument
• Practicalguidelinesforselectinga
humidity instrument
Humidity measurement and control is called for in a wide variety
of industrial applications. Each application has a different set of
requirements for humidity instruments, such as required measurement
range, tolerance to extreme temperature and pressure conditions,
ability to recover from condensation, ability to operate in hazardous
environments, and options for installation and calibration. There is
no single device that is suitable for all needs. In fact, the range of
available equipment is quite large, varying both in cost and quality.
- PRESSURE / WEATHER 1
- Measure 2
- Dew Point 4
- Relative Humidity 6
- Humidity Products 7
- What is Humidity? 8
- An Introduction 8
- Parameters 8
- Recommended 10
- Humidity 11
- Humidity Instrument 15
- Calibration 15
- Calibration of Dew Point 15
- Instruments 15
- Proven Vaisala HUMICAP® 16
- Performance 16
- Chemical Purge Minimizes 16
- Effects of Contaminants 16
- Flexible Installation 20
- Process is Running 23
- HMT331 probe 24
- HMT333 probe 24
- HMT334 probe 24
- HMT335 probe 24
- Looking for Accurate 25
- Instruments? 25
- Only Vaisala HUMICAP® 25
- Measures Up 25
- Temperature Transmitters 26
- HMP361 for wall mounting 27
- HMP363 for confined spaces 27
- HMP364 for high pressure 27
- HMP365 for high temperature 28
- HMP367 for high humidities 28
- HMP368 for pressurized 28
- Accessories 31
- Calculate 35
- Interchangeable Probe 36
- Remote probe dimensions 38
- BACnet in Brief 40
- Measures both Humidity 42
- Fast, On-Site Calibration 42
- Resistant to Chemicals 42
- Performance for Outdoor 48
- Easy Installation and 48
- Maintenance 48
- Easy Installation 50
- Reliable Operation 50
- Low Maintenance 54
- Chambers 56
- Vaisala INTERCAP 58
- Humidity and Temperature 58
- Probe HMP60 58
- Vaisala HUMICAP 60
- Probe HMP110 60
- Three Probes 62
- MI70 Link 62
- Temperature Meter HM40 64
- Features or Benefits 70
- Standard Contents of SHM40 70
- HMK15 Humidity Calibrator 72
- DTR500 Solar Radiation and 76
- Precipitation Shields 76
- Upper electrode 83
- Lower electrode 83
- Thin-film polymer 83
- Glass substrate 83
- Versatile Outputs and 85
- Data Collection 85
- Probe Specifications 86
- You Compress Air 89
- We Make Sure It’s Dry 89
- Measure Humidity Directly 90
- DMT345: Accurate in Hot 90
- OEM Applications 94
- DMT132 Dewpoint Transmitter 100
- Technical Data 101
- Spot-Checking Applications 102
- DSS70A Portable 104
- Sampling System 104
- Sampling Cells for 104
- Pressurized Processes 104
- Features/Benefits 106
- Dimensions 106
- Online Reliability 108
- Savings Across the Board 108
- Risk-Free, Greener 108
- Solution 108
- The Fruit of Experience 108
- Multiparameter Transmitter 110
- Outages 111
- Happen 24/7 111
- So Should Monitoring 111
- Moisture in Oil 112
- HUMICAP in Brief 113
- Transmitter Series for Oil 114
- Mounting Options 115
- MMT332 for High Pressure 116
- Installations 116
- MMT337 with Small-Sized Probe 116
- Transmitter for Oil 118
- Carbon Dioxide 124
- The CARBOCAP® Story 125
- Measurements 126
- Carbon Dioxide Probe 128
- Measurement 129
- Stability and Ability 129
- Interchangeable Probes 130
- Demanding OEM Applications 132
- GMM111 Carbon Dioxide Module 134
- Vaisala CARBOCAP 136
- Technology 136
- Two Sampling Methods 136
- Reliability from Unique 138
- Measurement Technology 138
- Convenient Installation 138
- Easy Calibration 138
- Please contact us at 140
- Demand Controlled Ventilation 144
- GMM112 Carbon Dioxide Module 148
- Pressure 150
- The BAROCAP Story 151
- PTU300 Models 153
- Digital Barometer 160
- SUBSCRIBE 161
- Take the Lab to the Field 162
- Standard PTB330TS 164
- PTB210 Digital Barometer 166
- Vaisala BAROCAP® 168
- Accuracy and Stability 168
- Applications 168
- Ideal for Outdoor 170
- Carefree Maintenance 170
- Operating Environment 172
- Available Options 172
- / TECHNOLOGY DESCRIPTION 176
- Vaisala WINDCAP® Sensor 177
- Vaisala RAINCAP® Sensor 177
- Measuring Acoustic 178
- Precipitation 178
- WMT52 Ultrasonic Wind Sensor 180
- Wind Measurement 182
- Vaisala Service Offering 184
- Service Offering 185
Relacionado con productos y manuales para De medición, control y control Vaisala INTERCAP HMDW80 SERIES
(57 paginas)© 2020, manymanuals.es. Todos los derechos reservados | 0.047 s |
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Comentarios a estos manuales