Barometric Pressure Sensors – Vaisala
Measuring air pressure is important both in weather forecasting and in many industrial applications.
In meteorology, air pressure and its changes relate to low and high-pressure fronts and their movements. A rapid drop in air pressure indicates an approaching storm or rain front, while increasing pressure brings the promise of clearer skies and sunshine.
In industrial applications, pressure is measured in laboratories and life science applications, for example.
Weather-Related Applications: Barometric pressure measurement has a wide variety of applications within meteorology. It is commonly used in weather, aviation, hydrology, and agrology applications.
Industrial Applications: Barometric pressure data is also required in several industrial applications. It is measured in pressure-sensitive industrial equipment, such as laser interferometers and lithography systems, engine-testing benches, and in exhaust-gas analysis.
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Note: Prices listed below are no longer up to date. Please contact us for an updated quote.
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Barometric Pressure Sensors
Indigo520 Transmitter for Combined Pressure, Humidity and Temperature Measurement
The Indigo520 is a unique transmitter capable of measuring three parameters simultaneously: barometric pressure, humidity, and temperature. The instrument can be configured with an internal barometric pressure module, plus one or two probes can be attached to measure humidity and temperature. Reliable HUMICAP® and BAROCAP® sensor technologies make it suitable for several applications such as engine testing booths, calibration laboratories, marine engine air intake monitoring and demanding meteorology applications.
Supersedes the PTU300. An adaptor plate is available to match the PTU300 mounting.
- Absolute pressure measurement range of 500 … 1100 hPa
- Total accuracy ±0.15 hPa
- Pressure units: hPa, mbar, kPa, Pa, inHg, mmH20,mmHg, torr, psia
- Supports 2 detachable probes simultaneously
- Large touchscreen display
- HUMICAP & BAROCAP sensor technologies
- IP66 and NEMA 4 rated metal enclosure
- 4 configurable galvanically isolated analog outputs
- 2 relays
- Ethernet connection with web interface for remote access
- Modbus® TCP/IP protocol
- Optional cloud connectivity from the Indigo500 through Jade Smart Cloud
Key Benefits:
- HMP1 for laboratories
- HMP3 with a field replaceable sensor for general use
- HMP7 for demanding, high-humidity industrial and meteorology applications
- HMP9 for confined spaces
- TMP1 for temperature measurement only
Rugged design
The robust Indigo520 transmitter is suitable for harsh conditions with its metal enclosure with IP66 and NEMA4 classification. The transmitter’s touchscreen is made of chemically strengthened glass.
Proven Vaisala Sensor Technology
Indigo series incorporates sensors known for their high accuracy and excellent long-term stability: Vaisala BAROCAPs for pressure measurement and Vaisala HUMICAPs for humidity measurement. The temperature sensor is a platinum RTD sensor.
Graphical Display of Measurement Data and Trends for Convenient Operation
Indigo520 features a large graphical touchscreen display. It allows users to easily monitor operational data, measurement trends, and access measurement history. The built in data logger, with real-time clock, makes it possible to generate years of measurement history and zoom in on any desired time or time frame. The display alarm allows any measured parameter to be tracked, with freely configurable low and high limits.
Versatile Outputs and Data Collection
Indigo520 comes with a standard Ethernet interface along with 4 programmable analog outputs. and 2 relays. A USB service cable is also available for easy PC connectivity.
Outdoor Installation Kit
Outdoor installation is possible using the optional Indigo500MIK installation kit, for applications requiring reliable measurements for meteorological purposes.
Flexible Calibration
Quick, one-point field calibration for humidity is easy using Vaisala Hand-Held Humidity Meter Indigo80.
With Vaisala Barometric Pressure Transfer Standard PTB330TS, including optional humidity and temperature probe, field check and calibration can be performed for all three parameters.
Configuration code is required: INDIGO520 Order Form (PDF) / HMPX Order Form (PDF)
| Part No | Product Detail |
|---|---|
| Indigo520 | Industrial Transmitter for Barometric Pressure (requires optional pressure module), add external probes for humidity/temp |
| HMP1 | Humidity & Temp Probe for laboratories |
| HMP3 | Humidity & Temp Probe with a field replaceable sensor for general use |
| HMP7 | Humidity & Temp Probe for demanding, high-humidity industrial and meteorology applications |
| HMP9 | Humidity & Temp Probe for confined spaces |
| TMP1 | Temperature Probe |
PTB330 for Professional Meteorology, Aviation and Industrial Users
This PTB330 barometer – designed for a wide range of high-end atmospheric pressure measurement – is based on the Vaisala BAROCAP® Sensor. It is a Vaisala in-house, silicon capacitive, absolute pressure sensor providing high measurement accuracy and excellent long-term stability.
- Vaisala BAROCAP® sensor
- Accurate measurement
- Excellent long-term stability
- Added reliability through redundancy
- Graphical trend display with 1-year history data
- Altitude corrected pressure (QFE, QNH)
Key Benefits:
Excellent long-term stability through technology
The PTB330 offers high measurement accuracy and superior stability thanks to the Vaisala BAROCAP® Sensor. These barometers operate over a wide temperature range and perform reliably even in highly demanding applications such as professional meteorology and aviation.
Low hysteresis, high repeatability
Combining two powerful technologies – single-crystal silicon material and capacitive measurement – BAROCAP® sensors feature low hysteresis and high repeatability.
Reliability through redundancy
When two or three sensors are used, the barometer continuously compares the readings of the pressure sensors against one another and provides information on whether these are within the set internal difference criteria.
Highly Accurate:
The PTB330 series is highly accurate. The Class A barometers for the most demanding applications are fine-tuned and calibrated against a high-precision pressure calibrator. Class B barometers are adjusted and calibrated using electronic working standard. All PTB330 barometers come with a traceable factory calibration certificate.
Reliability through Redundancy:
According to your choice, PTB330 can incorporate one, two, or three BAROCAP sensors. When two or three sensors are used, the barometer continuously compares the readings of the pressure sensors against one another and reports if they are within the set internal difference criteria. This unique feature provides redundancy in pressure measurement.
Users also get a stable and reliable pressure reading at all times as well as a pre-indication of when to service or recalibrate the barometer.
QNH and QFE:
PTB330 can be set to compensate for QNH and QFE pressure used especially in aviation. The QNH represents the pressure reduced to sea level, based on the altitude and temperature of the observation site. The QFE represents the height-corrected pressure of small differences in altitude, for example, the air pressure at the airfield elevation.
Graphical Display:
PTB330 features a multilingual, graphical display allowing users to monitor measurement trends. PTB330 updates the graph automatically during measurement and it provides a one-year measurement history. In addition to instant pressure, PTB330 provides the WMO pressure trend and tendency
codes.
Applications:
PTB330 can be used successfully for
aviation, professional meteorology, and
for demanding industrial pressure
measurement applications such as
accurate laser interferometric
measurement and exhaust gas analysis in
engine test benches.
Data sheet on BAROCAP Digital Barometer PTB330 (pdf, opens in a new tab)
Configuration code is required
| Part No | Product Detail |
|---|---|
| PTB330A | PTB330 Digital Barometer (500 to 1100hPa), (Class A, equipped with 1 pressure transducer) |
| PTB330B | PTB330 Digital Barometer (500 to 1100hPa), (Class B, equipped with 1 pressure transducer) |
PTB330TS Vaisala Barometric Pressure Transfer Standard PTB330TS
Barometric Pressure Transfer Standard PTB330TS makes field inspection accurate and easy.
It combines a PTB330 digital barometer with a hand-held MI70 indicator within a portable unit functioning as a transfer standard.
PTB210 Digital Barometer for harsh environments
- 500… 1100 hPa or 50…. 1100 hPa pressure ranges with serial output
- Different scaling’s between 500… 1100 hPa with analog output
- Electronics housing IP65 protected against sprayed water
- Accurate and stable measurement
- NIST traceable (certificate included)
Key Benefits:
For harsh environments
The Vaisala BAROCAP® Digital Barometer PTB210 is ideal for outdoor installations and harsh environments. The barometers are designed to operate in a wide temperature range, and the electronics housing provides IP65 (NEMA 4) standardized protection against sprayed water.
Excellent hysteresis and repeatability characteristics
The PTB210 barometers use the Vaisala BAROCAP® Sensor, a silicon capacitive absolute pressure sensor developed by Vaisala for barometric pressure applications. The Vaisala
BAROCAP® Sensor provides also outstanding temperature and long-term stability.
Several pressure ranges
The PTB210 barometers are designed for various pressure ranges. They are available in two basic configurations: serial output for 500 … 1100 hPa and 50 … 1100 hPa and analog output with different scalings between 500 … 1100 hPa.
Data sheet on BAROCAP® Digital Barometer PTB210 (pdf, opens in a new tab)
Configuration code required: PTB210 Order Form (PDF)
| Part No | Product Detail |
|---|---|
| PTB210A | Digital Barometer, Class A (50-1100 hPa only) with serial interface |
| PTB210B | Digital Barometer, Class B with serial interface |
| PTB210C | Digital Barometer, Class C with analog voltage output |
PTB110 for Industrial Use – BaroCap Barometer
The compact PTB110 is suitable for applications, such as environmental pressure monitoring, data buoys, laser interferometers, and in agriculture and hydrology. Due to its very low power consumption, the barometer is particularly ideal for different data logger applications.
Patented Vaisala technology provides long-term stability.
- Vaisala BAROCAP® sensor
- Several pressure ranges
- Accuracy ±0.3 hPa at +20 °C
- Long-term stability
- Output voltage 0 … 2.5 or 0 … 5 VDC
- On/off control with external trigger
- Output voltage 0 … 2.5 or 0 … 5 VDC
- Current consumption less than 4 mA
- Mountable on a (35 mm wide) DIN rail
Key Benefits
Excellent long-term stability of the barometer
The PTB110 barometer uses the Vaisala BAROCAP® Sensor, a silicon capacitive absolute pressure sensor developed by Vaisala for barometric pressure measurement applications. The sensor combines the outstanding elasticity characteristics and mechanical stability of single-crystal silicon with the proven capacitive detection principle.
Accuracy and stability
The excellent long-term stability of the barometer minimizes or even removes the need for field adjustment in many applications, such as environmental pressure monitoring, data buoys, laser interferometers, and in agriculture and hydrology.
Low power consumption
The compact PTB110 is especially ideal for data logger applications as it has low power consumption. Also an external On/Off control is available. This is practical when the supply of electricity is limited.
Data sheet on BAROCAP® Barometer PTB110 (pdf, opens in a new tab)
Configuration code required: PTB110 Order Form (PDF)
| Part No | Product Detail |
|---|---|
| PTB110 | Barometric Pressure Transmitter with NIST traceable calibration certificate |
Choose from one of the following pressure ranges: 500..1100, 600..1100, 800..1100, 600..1060, 800..1060hPa
Choose from one of the following outputs: 0…5Vdc, 0…2.5Vdc or frequency output(1hPa=1Hz)
Differential pressure transmitter series
PDT101 Differential Pressure Transmitter
Vaisala Differential Pressure Transmitter PDT101 is designed especially for demanding life science and high technology cleanroom applications.
The PDT101 transmitter can be mounted on a wall, DIN rail or panel and is ideal for incorporating into the Vaisala ViewLinc Continuous Monitoring System to measure and monitor the critical environmental parameters as required in regulated environments.
- DIN rail, panel or wall mountable
- 2 pressure ranges (Pa and inH2O)
- Accessible zero and span adjustment potentiometers
- ¼” brass tubing connections
- LED status indicator
- Specially designed for critical and regulated environments
- Euro style detachable connector
- Measurements traceable to international standards
Key Benefits
Easy to install
Easy mounting on a wall, DIN rail or panel. The transmitter’s has a compact design and is well suited for monitoring cleanrooms and adjacent corridors with LED indicator lights for quick and easy power status checks.
Simplified compliance
As part of the Vaisala viewLinc monitoring system, the PDT101 is ideal for regulated environments where continuous, documented and redundant data is a requirement.
Precision and flexibility
The sensor enables precise measurement and control in high performance cleanrooms. The PDT101 transmitter is available with voltage output (3-wire) or current output (2-wire).
PDT101 Datasheet with order codes (PDF)
Order code required (see datasheet for model listing)
PDT101 Vaisala Differential Pressure Transmitter, voltage or current output, various measurement ranges (see datasheet for order codes)
Differential Pressure Transmitter PDT102
The PDT102 transmitter has an ultrathin profile suited for DIN rail mounting.
The transmitter is ideal for incorporating into the Vaisala Veriteq Continuous Monitoring System to measure and monitor the critical environmental parameters as required in regulated environments.
Features:
- In-place system calibration and on-line monitoring without disturbing process tubes with optional process valve actuator and test jacks
- Ultrathin profile ideally suited for DIN rail mount reduces installation and calibration costs
- High accuracy, two options; 0.25% or 0.50% of span designed for use in critical monitoring of cleanrooms for pharmaceutical, biotechnology, medical device and semiconductor controlled manufacturing environments
- Extremely robust MEMS silicon sensor technology provides very high accuracy, sensitivity, stability and durability
- NIST traceable 9 point calibration with certificate
- Front side accessible zero and span adjustment potentiometers
Key Benefits:
Ideal for demanding cleanroom environments
As part of the Vaisala viewLinc monitoring system the PDT102 is highly suited for regulated environments where continuous, documented and redundant data is a required to meet regulations.
Robust sensing technology
The silicon sensor uses a micro-machined, ultra-thin silicon diaphragm that provides repeatability and stability.
High performance measurement
The PDT102 offers very high accuracy, sensitivity and stability with two options for accuracy, 0.25% or 0.50% of span providing a highly reliable and repeatable measurement.
PDT102 Datasheet with order codes (PDF)
PDT102 Vaisala Differential Pressure Transmitter, DIN rail mount, voltage or current output, various output ranges and accuracies (see datasheet for order codes)
PTB330TS Vaisala Barometric Pressure Transfer Standard
Barometric Pressure Transfer Standard PTB330TS combines a PTB330 digital barometer with a hand-held MI70 indicator within a portable unit functioning as a transfer standard. The optional HMP155 probe is available for accurate humidity and temperature measurement. For professional meteorology, aviation, laboratories and demanding industrial applications.
Operational PTB330TS unit includes a PTB330 digital barometer, hand-held MI70 indicator, optional HMP155 humidity and temperature probe, optional MI70 Link PC software, a user’s guide and a weatherproof transfer case equipped with a shoulder strap.
- Portable, battery operated transfer standard with data logging capability
- Barometric pressure with Vaisala BAROCAP® Digital Barometer PTB330
- Excellent long term stability
- Accurate measurement
- Optional humidity and temperature measurements with HMP155
- Vaisala HUMICAP®180R sensor – superior long-term stability
- New, fast temperature probe
- Chemical purge
- Data can be logged, and transferred to a PC via MI70 Link software
Key Benefits:
Easy to use
Data can be logged, and transferred to a PC via MI70 Link software. Multilingual user interface with nine languages to select from.
Take the Lab to the Field
PTB330TS makes field inspection accurate and easy. It combines a PTB330 digital barometer with a hand-held MI70 indicator within a portable unit functioning as a transfer standard. The PTB330TS comes in a durable and weatherproof transport case that can be easily carried and shipped.
High measurement accuracy and excellent long-term stability
The PTB330 series features extremely high accuracy. Class A barometers for the most demanding applications are fine-adjusted and calibrated against a high-precision pressure calibrator. All the PTB330 barometers come with a NIST traceable, factory calibration certificate, also optional ISO/IEC 17025 accreditation calibration services are available.
Configuration code required: PTB330TS Order Form (PDF)
| Part No | Product Detail |
|---|---|
| PTB330TS | Barometric Pressure Transfer standard, Class A accuracy, with weatherproof hard case, MI70 handheld indicator, and optional HMP155 humidity and temp probe (configuration code required) |
Static Pressure Heads SPH10/20 for Minimizing Wind Induced Error
Variations due to strong and gusty wind can be overcome by using a static pressure head to ‘filter out’ the effect of dynamic pressure. The Vaisala Static Pressure Head Series SPH10/20 are designed to minimize the errors caused by wind. The wind tunnel tested structure is both horizontally and vertically symmetrical. This design ensures reliable barometric pressure measurements in all weather.
Wind induced effects are one of the main sources of error when measuring barometric pressure. Variations due to strong and gusty wind can be overcome by using a static pressure head to reduce the effect of dynamic pressure. Vaisala Static Pressure Head Series SPH10/20 are designed to minimize the errors caused by wind. Their wind tunnel tested structure is both horizontally and vertically symmetrical. This design ensures reliable barometric pressure measurements in all weather.
Ideal for Outdoor Installations
Vaisala static pressure heads are available in two models: Vaisala Static Pressure Head SPH10 is a basic version, and Vaisala Static Pressure Head SPH20 is a heated version for reliable operation in snowy and icy conditions. The heated SPH20 contains a thermostat that switches on the warming power at temperatures where the risk of icing may occur. Composed of ultraviolet stabilized PC plastics and offshore aluminium, SPH10/20 static pressure heads are durable and weather resistant.
SPH10/20 protects against rain and condensed water. This prevents capillary condensation of a water column in the pressure channel resulting in a pressure error. The drain holes in the lower plate allow rain and water to flow out. The static pressure heads have internal netting that prevents insects and debris from blocking the pressure channel.
Carefree Maintenance
SPH10/20 static pressure heads are easy to install and disassemble, service, and clean – even at the installation site. Vaisala BAROCAP Digital Barometer PTB210 can be installed directly on top of SPH10/20 static pressure heads. Other barometers can be connected to the heads with pressure tubing.
SPH10 and SPH20 are a perfect pair for all Vaisala barometers. They ensure an accurate and reliable measurement in all weather conditions.
- Minimizes wind induced error
- Reliable barometric pressure measurement in all weather
- Wind tunnel tested structure
- Easy to clean
- Easy to install
Key Benefits
Ideal for outdoor installations
Composed of ultraviolet stabilized PC plastics and offshore aluminium, the SPH10/20 static pressure heads are durable and weather resistant. The SPH10/20 protects against moisture with drain holes in the lower plate that allow rain and water to flow out. It also has internal netting that prevents insects and debris from blocking the pressure channel.
Ease of installation and carefree maintenance
The SPH10/20 static pressure heads are easy to install and disassemble, service, and clean – even at the installation site.
Reliable barometric pressure measurement in all weather
Vaisala BAROCAP® PTB210 Barometers can be installed directly on top of the SPH10/20 static pressure heads. Other barometers can be connected to the heads with pressure tubing.
Data sheet on Static Pressure Heads SPH10/20 (pdf, opens in a new tab)
SPH10 Vaisala Static Pressure Head, basic version, suits all Vaisala barometers
SPH20 Vaisala Static Pressure Head, heated version for ice/snow conditions, suits all Vaisala barometers
Obsolete and Superseded Products
PTB100 Barometric Pressure Transmitter:
The PTB100 series has been replaced by the PTU300.
PTB 220 Series can have up to 3 internal sensors for redundancy (a requirement of Met Bureaus).
The PTU200 has been replaced by the Indigo520 series.
PTB220TS is an all in one portable unit that can be used as a portable barometer, as a transfer or travelling standard and as a laboratory working standard.
The PTU220TS has been replaced by the PTB330TS.
PTU300 has been replaced by Indigo520 series.