
10 D Gill Street, Woburn, MA 01801
USA & Canada Tel: 1-888-VAISALA (824-7252)
Brazil: 0800-891-7392
International Calls: +1-781-933-4500
Email: instruments@vaisala.com
www.vaisala.com/HMT330
10
Vaisala Instruments Catalog 2009
Ref. B210768EN rev. A
HMT330 Series Humidity and Temperature
Transmitters for Industrial Applications
Features/Benefits
• Six models for demanding industrial
applications
• Full 0 ... 100 % RH measurement,
temperature range up to +180 °C
(+356 °F) (depending on model)
• Pressure tolerance up to 100 bar
(depending on model)
• Next generation Vaisala HUMICAP®
Sensor for excellent accuracy and
stability
• Graphical display of measurement
trends and over four-year history
• Multilingual user interface
• Excellent performance in harsh
chemical concentrations
• Corrosion resistant IP65 housing
• NIST traceable (certicate included)
• Analog outputs, WLAN/LAN
e Vaisala HUMICAP® Humidity
and Temperature Transmitter Series
HMT330 is designed for demanding
industrial applications where stable
measurement and wide customization
is important.
Vaisala HUMICAP
®
performance
e HMT330 series incorporates
Vaisala’s 30 years of experience in
industrial humidity measurement.
An updated, even more stable and
chemical resistant HUMICAP® sensor
is available, next to the proven reliable
and accurate sensor.
Chemical purge minimizes
effects of contaminants
In environments with high
concentrations of chemicals and
cleaning agents, chemical purge helps
to maintain measurement accuracy
between calibration intervals.
Chemical purge involves heating the
sensor to remove harmful chemicals.
e function can be initiated manually
or programmed to occur at set
intervals.
Graphical display of history
and measurement trends
e HMT330 can be ordered with a
large numerical and graphical display,
which allows the user to clearly monitor
operational data, measurement trends
and 1-year measurement history.
e optional data logger with real-time
clock makes it possible to generate
over four years of measured history,
and zoom in on any desired time or
time frame. e battery backup of the
clock guarantees a reliable logging of
measured data.
e display alarm allows tracking of
any measured parameter, with a freely
congurable low and high limit.
Data collection and (wireless)
transfer to PC
e recorded measurement data can be
viewed on the display or transferred to
a PC with Microsoft Windows® software.
e transmitter can also be connected
to a network with an optional (W)LAN
interface, which enables a (wireless)
Ethernet connection.
A USB-RJ45 cable makes it easy to
connect the service port of the HMT330
to a PC.
Many ways to install and
versatile outputs
Mains and DC power options, and
several mounting accessories make the
instrument easy to install.
e HMT330 can have up to three
analog outputs. Isolated galvanic power
supply and analog outputs are also
available. For serial interface the USB
connection, RS232 and RS485 can be
used.
e HMT330 transmitter family has the solution for demanding industrial humidity
measurements.
e display shows measurement trends, real
time data and over four years of history.
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