PTU-2000 METEOROLOGICAL THERMO-HYGROMETER
The Model PTU-2000 is a complete precision pressure, ambient temperature, and humidity professional quality measuring system designed for the meteorologist, climatologist, or atmospheric scientist. It provides accurate and reliable measurements achieving an absolute accuracy of ± 0.2° C in measuring ambient temperature over the entire ± 50° C range, relative humidity accuracy of ± 2% and pressure accuracy of ± 0.03" Hg. The system consists of an aspirated double-shielded platinum resistance thermometer, polymer capacitance hygrometer sensor, and solid state pressure sensor.
Ambient temperature is highly variable in both time and space, and a single measurement reflects a limited space-time domain. Historically, techniques other than direct measurement of ambient temperature have provided support for the global warming issue, but precise knowledge of atmospheric ambient temperatures is a fundamental component to understanding the Earth's climatic mechanisms. As we continue collecting ambient temperature data for the climatological database, improvements in the basic measurement are required. While some of the problems of measuring ambient temperature cannot be easily eliminated, basic instrumental and observational errors in climatic temperature measurements can be reduced using the PTU-2000.
Maximum sensor protection with double intake radiation shields plus canopy shade ring
Reliable solid-state detection technology
Precision platinum resistance thermometer
Solid state pressure transducer
Professional grade meteorological stations
Aviation weather systems
The PTU-2000 electronics are packaged in a weatherproof NEMA-type PVC enclosure. The radiation shields are manufactured with white UV-resistant materials. Electrical and mechanical components are designed to operate over a temperature span of ± 50° C. The system typically mounts two meters above the ground to a tower or support and aimed into the prevailing wind.
Two foil-shielded 10' (3m) long cables are supplied with pig tails for interface to the user's junction box:
Spare aspiration blower
Spare aspiration screen
Mechanical Interface, Dimensions in inches (cm)
101 Industrial Blvd.
Turners Falls, MA 01376 USA
Fax: (413) 863-0255
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This page was last updated on Monday, September 11, 2006 .