User manual VAISALA PTU200 DATASHEET
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Manual abstract: user guide VAISALA PTU200DATASHEET
Detailed instructions for use are in the User's Guide.
[. . . ] Box 26, FIN-00421 Helsinki, FINLAND Tel: +358 9 894 91 Fax: +358 9 8949 2485 Email: industrialsales@vaisala. com www. vaisala. com
PTU200 Combined Pressure, Humidity and Temperature Transmitter
Features/Benefits
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Barometric pressure, humidity and temperature measurement in one transmitter Available with two barometric pressure sensors for added reliability RS232C serial interface with NMEA protocol for GPS use Optional local display and RS485 serial interface NIST traceable (certificate included) Optional IP65 (NEMA 4) outdoor installation kit and tripod available
Applications
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PTU200 combines barometric pressure, humidity and temperature measurement in one transmitter.
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GPS meteorology: estimating precipitable water vapor in the atmosphere GPS accuracy improvement Meteorological applications Environmental monitoring in calibration laboratories
Three-in-one measurement
The Vaisala Combined Pressure, Humidity and Temperature Transmitter PTU200 is a versatile multipurpose instrument for various applications. in GPS* meteorology and other meteorological applications, as well as in environmental monitoring in calibration laboratories. [. . . ] * GPS = Global Positioning System
Vaisala's proven sensor technology
The PTU200 transmitter uses the Vaisala BAROCAP® Sensor for pressure measurement. The humidity and temperature probes are fitted with the Vaisala HUMICAP® Sensor. The sensors are known for their high accuracy and excellent long-term stability. The temperature sensor is a platinum RTD sensor.
Outdoor installation kit
For outdoor use, an optimized Vaisala Meteorological Installation Kit PTU200MIK1 is available. The PTU200MIK1 includes a IP65 (NEMA 4) rated enclosure for the barometer, a static pressure head and a radiation shield for the humidity and
Serial communication
An RS232C serial interface is standard with PTU200 transmitters. The transmitter software is also compatible
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Vaisala Meteorological Installation Kit PTU200MIK1 equipped with Vaisala Tripod PTU200TRIPOD. A
PTU200
BAROMETRIC PRESSURE
Technical Data
Barometric pressure
Pressure range Accuracy Linearity Hysteresis* Repeatability* Calibration uncertainty** Accuracy at +20 °C*** 500. . . 1100 hPa, 50. . . 1100 hPa 500. . . 1100 hPa 50. . . . 1300 hPa Class A Class B ±0. 05 hPa ±0. 10 hPa ±0. 20 hPa ±0. 03 hPa ±0. 03 hPa ±0. 08 hPa ±0. 03 hPa ±0. 03 hPa ±0. 08 hPa ± 0. 07 hPa ±0. 15 hPa ±0. 20 hPa ± 0. 10 hPa ±0. 20 hPa ±0. 30 hPa
Temperature dependence**** ±0. 1 hPa ±0. 1 hPa ±0. 3 hPa Total accuracy (-40. . . +60 °C / -40. . . +140 °F) ±0. 15 hPa ±0. 25 hPa ±0. 45 hPa Long-term stability/year ±0. 1 hPa ±0. 1 hPa ±0. 2 hPa Response time (100% response) 1 s· 1 s· one sensor 2 s· * Defined as ±2 standard deviation limits of endpoint nonlinearity, hysteresis error, or repeatability error. ** Defined as ±2 standard deviation limits of inaccuracy of the working standard including traceability to NIST. ***Defined as the root sum of the squares (RSS) of endpoint nonlinearity, hysteresis error, repeatability error and calibration uncertainty at room temperature. ****Defined at ±2 standard deviation limits of temperature dependence over the operating temperature range.
Relative humidity
Measurement range 0. 8. . . 100 %RH Output scale 0. . . 100 %RH equals 0. . . 1 VDC Accuracy at +20 °C (including nonlinearity and hysteresis) against factory references ±1 %RH field calibration against references ±2 %RH (0. . . 90% RH) ±3 %RH (90. . . 100% RH) Typical long-term stability better than 1 %RH per year Temperature dependence ±0. 05 %RH/°C Response time (90%) at +20 °C 15 sec. [. . . ] Specifications subject to change without prior notice. ©Vaisala Oyj
Vaisala Instruments Catalog 2005
Ref. [. . . ]
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