Vaisala INTERCAP HMDW80 SERIES Especificações Página 124
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/ TECHNOLOGY DESCRIPTION
Vaisala CARBOCAP® Sensor for Measuring
Carbon Dioxide
Box headline here
CARBOCAP in Brief
▪
A silicon-based infrared (IR)
absorption sensor
▪
Continuous internal reference
measurement
▪
Both ppm and percentage-
level CO
2
measurement
▪
Providing accurate
measurements for over 15 years
First launched in 1997, the Vaisala CARBOCAP
®
carbon
dioxide (CO
2
) sensor features a groundbreaking innovation
– the micromachined, electrically tunable Fabry-Perot
Interferometer (FPI) filter for built-in reference measurement.
This reliable and stable sensor has been delivering accurate
CO
2
measurements for over 15 years across a wide range of
industries and applications, from building automation and
safety to life sciences and ecological research.
How It Works
Carbon dioxide has a characteristic
absorbance band in the infrared (IR)
region at a wavelength of 4.26 µm.
This means that when IR radiation
is passed through a gas containing
CO
2
, part of the radiation is absorbed.
Therefore, the amount of radiation
passing through the gas depends on
the amount of CO
2
present, and this
can be detected with an IR detector.
The Vaisala CARBOCAP sensor
features an electrically tunable
FPI filter located in front of the IR
detector. In addition to measuring
CO
2
absorption, the micromechanical
FPI filter enables a reference
measurement at a wavelength where
no absorption occurs. When taking
the reference measurement, the
FPI filter is electrically adjusted to
switch the bypass band from the
absorption wavelength to a non-
CARBOCAP’s Unique Benefits
▪
Superior stability enabled by
built-in reference measurement
▪
Minimal maintenance and
calibration requirements
▪
Insensitive to dust, water vapor,
and most chemicals
▪
Insensitive to changing air flow
absorption wavelength. The reference
measurement compensates for any
potential changes in the light source
intensity, as well as for contamination
and dirt accumulation in the optical
path. This feature means that
CARBOCAP sensor operation is
highly stable over time.
Instruments measuring at both
the absorption and the reference
wavelength with a single light
source are known as single-beam
dual-wavelength instruments.
The technology is widely applied
in costly analyzers. The unique
feature of the CARBOCAP sensor
is its micromachined FPI filter,
which performs a dual-wavelength
measurement using a single detector.
The compact size of the sensor
means that this advanced technology
can be incorporated into small
probes, modules, and transmitters.
Both absorption and reference are
measured with the CARBOCAP sensor.
4.26 µm
Carbon Dioxide
- 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
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