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January 16th, 2008
Humidity Transmitter HMT330 from Vaisala Features Integrated Data Logging

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PR – Vaisala HUMICAP® Humidity and Temperature
Transmitter Series HMT330 now offers several new features including a
data logging option,
Chinese as a new user interface language, the new generation Vaisala HUMICAP
® 180 R sensor and
a USB connection cable for computers. In addition, the HMT330 has a new display
with a white background light for easier reading.

The new data
logging option is a module that is slotted into the transmitter. The module has
an enhanced memory that can store data of three measured parameters. When
logging is fixed at 10 second intervals, data can be recorded for as long as 4
years and 5 months. A real-time clock with a battery backup ensures accurate
date and time stamps, as well as the preservation of recorded data if power to
the transmitter is interrupted.

The logging
feature does not require any pre-setting; data is ready and available when
needed. The stored data can be viewed graphically on the display throughout the
logging period, and the user can zoom in and out as necessary. Any period of
measured results can be downloaded via a serial interface to a computer.

Vaisala also
introduces the new generation of its proven Vaisala HUMICAP® Relative Humidity Sensor,
the HUMICAP
®180R. This new sensor provides further
improved long-term stability and chemical tolerance as well as resistance
against various contaminants.

To connect the
service port of the HMT330 transmitter to the USB port of a computer, Vaisala now
offers a USB-RJ45 Serial Connection Cable. It operates as an RS232 – USB
converter at a data transfer rate of 19200 bauds/s.

In addition to the
eight existing languages, the graphical display interface now also includes
Chinese. Users can select the language on the display menu. With the new white
background in the display, contrast is increased and readability is improved.

See the HMT330
product pages
or online demo for more information.

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