Overview
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- Barometric pressure, humidity and temperature measurement in one transmitter
- Available with two barometric pressure sensors - for added reliability
- RS-232C serial interface with NMEA protocol for GPS use
- Optional display, RS-485, analog output, and relay
- Optional power supply module
- NIST traceable calibration
- HMT330MIK Installation kit for outdoor use
- Applications include environmental monitoring in calibration laboratories, GPS meteorology: estimating precipitable water vapor in the atmosphere; weather stations
- Integrated data logging, with over four years of measured history
- LAN and WLAN communication options
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Technical Specifications
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Barometric pressure measurement |
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Measurement range |
500 ... 1100 hPa, 50 ... 1100 hPa |
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Accuracy at +20 °C |
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Class A 500 ... 1100 hPa |
±0.10 hPa |
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Class B 500 ... 1100 hPa |
±0.20 hPa |
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50 ... 1100 hPa |
±0.30 hPa |
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Total accuracy
(-40...+60 °C/-40...+140 °F) |
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Class A 500 ... 1100 hPa |
± 0.15 hPa |
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Class B 500 ... 1100 hPa |
± 0.25 hPa |
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50 ... 1100 hPa |
± 0.45 hPa |
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Long-term stability |
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Class A 500 ... 1100 hPa
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± 0.1 hPa |
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Class B 500 ... 1100 hPa
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± 0.1 hPa |
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50 ... 1100 hPa
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± 0.2 hPa |
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Sensor |
Vaisala BAROCAP® |
Relative humidity measurement |
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Measurement range |
0 ... 100 %RH |
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Accuracy (including non-linearity and hysteresis)
at +15 … +25 °C
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± 1 %RH (0 … 90%)
± 1.7 %RH (90 … 100%) |
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Sensor |
Vaisala HUMICAP®180
Vaisala HUMICAP® 180R |
Temperature measurement |
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Measurement range |
-40 ... +60 °C (-40 ... +140 °F) |
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Accuracy |
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at -40 °C (-40 °F) |
± 0.4 °C (±0.8 °F) |
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at +20 °C (68 °F) |
± 0.2 °C (±0.4 °F) |
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at +60 °C (140 °F) |
± 0.3 °C (±0.6 °F) |
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Sensor |
Pt100 RTD 1/3 Class B IEC 751 |
Operating environment |
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Temperature range
with display
Humidity range |
-40 ... +60 °C (-40 … +140 °F)
0 ... +60 °C (+32 … +140 °F)
non-condensing |
Inputs and outputs |
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Operating voltage |
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with an optional power |
10 ... 35 VDC |
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supply module |
100 … 240 VAC |
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Analog outputs (optional) |
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current outputs |
0 … 20 mA, 4 … 20 mA |
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voltage output |
0 … 1 V, 0 … 5 V, 0 … 10 V |
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Serial interface |
RS-232C, RS-485 |
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Ethernet interface (optional)
Supported standards |
10/100Base-T |
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Connector |
RJ45 |
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Protocols |
Telnet |
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WLAN interface (optional) |
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Supported standards |
802.11b |
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Antenna connector type |
RP-SMA |
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Protocols |
Telnet |
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Security |
WEP 64/128,WPA |
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Authentication / Encryption |
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Open / no encryption |
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Open / WEP |
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WPA Pre shared key / TKIP |
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WPA Pre shared key / CCMP
(a.k.a. WPA2) |
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Optional data logger with
real-time clock |
max. three with trend/min/max values |
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Logged parameters |
10 sec (fixed) |
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Logging interval |
4 years 5 months |
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Max. logging period |
13,7 million points per |
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Logged points |
parameter |
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Battery lifetime |
min. 5 years |
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Display |
LCD with graphic trend display |
Calculated quantities |
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Humidity parameters
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Dewpoint temperature (Tdp)
Absolute humidity (a)
Mixing ratio (x)
Wet bulb temperature (Tw)
Water vapour pressure (Pw)
Entalphy (h)
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Pressure parameters |
QNH Pressure
QFE Pressure
Height corrected pressure HCP
WMO Pressure tendency code |
For complete specifications, please see the brochure or user guide in "Documents".
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Related Services
- Service Center Calibration
Regular calibration ensures that your Vaisala equipment continues to provide accurate, high-quality data. We offer traceable, standards-compliant calibration services for almost all Vaisala products and partner with world-class couriers for rapid, trouble-free return of your equipment.- Repair Services
Vaisala repair services include fault tracing and repair or replacement of failed components, as well as final testing to ensure your equipment is functioning properly. Repairs can be carried out on site or at one of our service centers.- Spare Parts
Get rapid access to the spare parts you need to maximize the uptime of your equipment and ensure reliable and accurate operation. In addition to standard spare part delivery, we also offer an express service where parts are shipped within one business day.- Warranty
All Vaisala products and services are covered by a 12-month warranty as standard, with selected products covered for up to 24 months. During this period you benefit from free repair or replacement of faulty equipment. With Vaisala’s extended warranty, you get free repair or replacement for five years.
Documents
- Optimizing gas turbine performance with precise humidity measurements (pdf, 367KB)
- PTU300 联合 产品应用介绍 (pdf, 1015KB)
- PTU300 組み合わせた カタログ資料 (pdf, 912KB)
- DNV Type Approved Product Certificate No.: A-11440 (pdf, 1421KB)
- Vaisala Veriteq Continuous Monitoring System Brochure (pdf, 1449KB)
- Measure Monitor and Validate in Life Science Environments (pdf, 456KB)
- PTU300製品カタログ (pdf, 2433KB)
- PTU300 Ficha técnica en español (pdf, 323KB)
- PTU300 Ficha técnica em português (pdf, 427KB)
- PTU300 Fiche technique en français (pdf, 675KB)
- PTU300 Datasheet in English (pdf, 696KB)
- PTU300 選定明細書 (pdf, 164KB)
- PTU300 Calibration Order Form (pdf, 25KB)
- PTU300 Order form (pdf, 115KB)
- PTU30T選定明細書 (pdf, 115KB)
- PTU300選定明細書(Option) (pdf, 64KB)
- PTU301選定明細書 (pdf, 131KB)
- PTU303選定明細書 (pdf, 192KB)
- PTU307選定明細書 (pdf, 199KB)
- Vaisala BAROCAP® for barometric pressure measurement (pdf, 224KB)
- Vaisala BAROCAP® para medição de pressão barométrica (pdf, 217KB)
- PTU300 取扱説明書 (pdf, 1624KB)
- PTU300 Manuel utilisateur en français (pdf, 3507KB)
- PTU300 ИНСТРУКЦИЯ ПОЛЬЗОВАТЕЛЯ (pdf, 2369KB)
- PTU300 User Guide In English (pdf, 2547KB)
- PTU300取扱説明書 (pdf, 3244KB)
- Certified Reliability For The Seas (pdf, 639KB)
- PTU300 Wiring Diagram in English (pdf, 368KB)
- PTU300-HMT330MIK 外形図 (pdf, 312KB)
- PTU303、307用ダクト取付けキット外形図 (pdf, 336KB)
- PTU300 外形図 (pdf, 558KB)
- PTU300 Display type 外形図 (pdf, 464KB)
- PTU 300 no display 外形図 (pdf, 1020KB)
- POWER-1 Power Supply Module Installation Instructions in English (pdf, 441KB)
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