PTU300 Combined Pressure, Humidity and Temperature Transmitter
	Measures humidity, temperature, and barometric pressure in two accuracy classes. The PTU300 series features a large numerical and graphical display. Optional data logging and (W)LAN interface. 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 histor LAN and WLAN communication option
Datasheet Order Form User Guide
Barometric pressure measurement Measurement range Accuracy at +20 °C      Class A 500 ... 1100 hPa      Class B 500 ... 1100 hPa      50 ... 1100 hPa Total accuracy  (-40...+60 °C/ -40...+140 °F)      Class A 500 ... 1100 hPa      Class B 500 ... 1100 hPa      50 ... 1100 hPa Long-term stability      Class A 500 ... 1100 hPa      Class B 500 ... 1100 hPa      50 ... 1100 hPa Sensor 500 ... 1100 hPa, 50 ... 1100 hPa ±0.10 hPa ±0.20 hPa ±0.30 hPa ± 0.15 hPa ± 0.25 hPa ± 0.45 hPa ± 0.1 hPa ± 0.1 hPa ± 0.2 hPa Vaisala BAROCAP® Relative humidity measurement Measurement range Accuracy (including non-linearity and hysteresis)         at +15 … +25 °C Sensor 0 ... 100 %RH ± 1 %RH (0 … 90%) ± 1.7 %RH (90 … 100%) Vaisala HUMICAP®180 Vaisala HUMICAP® 180R Temperature measurement Measurement range Accuracy          at -40 °C (-40 °F)          at +20 °C (68 °F)          at +60 °C (140 °F) Sensor -40 ... +60 °C (-40 ... +140 °F) ± 0.4 °C (±0.8 °F) ± 0.2 °C (±0.4 °F) ± 0.3 °C (±0.6 °F) Pt100 RTD 1/3 Class B IEC 751 Operating environment Temperature range         with display Humidity range -40 ... +60 °C (-40 … +140 °F) 0 ... +60 °C (+32 … +140 °F) non-condensing Inputs and outputs Operating voltage         with an optional power         supply module Analog outputs (optional)         current outputs         voltage output Serial interface Ethernet interface (optional)         Supported standards         Connector         Protocols WLAN interface (optional)         Supported standards         Antenna connector type         Protocols         Security Authentication / Encryption         Open / no encryption         Open / WEP         WPA Pre shared key / TKIP         WPA Pre shared key / CCMP (a.k.a. WPA2) Optional data logger with real-time clock         Logged parameters         Logging interval         Max. logging period         Logged points         Battery lifetime Display 10 ... 35 VDC 100 … 240 VAC 0 … 20 mA, 4 … 20 mA 0 … 1 V, 0 … 5 V, 0 … 10 V RS-232C, RS-485 10/100Base-T RJ45 Telnet 802.11b RP-SMA Telnet WEP 64/128,WPA max. three with trend/min/max values 10 sec (fixed) 4 years 5 months 13,7 million points per parameter min. 5 years LCD with graphic trend display Calculated quantities Humidity parameters Pressure parameters Dewpoint temperature (Tdp) Absolute humidity (a) Mixing ratio (x) Wet bulb temperature (Tw) Water vapour pressure (Pw) Entalphy (h) QNH Pressure QFE Pressure Height corrected pressure HCP WMO Pressure tendency code

PTU300 Pressure Humidity and Temp