
www.vaisala.com
10 11
Graphical display of
history and measurement
trends
The 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. The 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. The battery backup of the
clock guarantees a reliable logging of
measured data.
The display alarm allows tracking
of any measured parameter, with a
freely congurable low and high limit.
Data collection and
(wireless) transfer to PC
The recorded measurement data
can be viewed on the display or
transferred to a PC with Microsoft
Windows
®
software. The 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.
The 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.
Flexible calibration
The HMT330 instruments are
calibrated at six humidity points at
the factory. A quick, one-point eld
calibration can be performed with
the hand-held HM70 meter. A two-
point calibration can be performed
with the HMK15 salt bath calibrator
in a controlled environment. The
transmitter can be sent to Vaisala for
recalibration. Accredited calibrations
and maintenance contracts are also
available.
HMT330 Series Humidity and Temperature
Transmitters for demanding humidity measurement
The 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
The 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.
The HMT330 transmitter family has the solution for demanding industrial humidity
measurements.
Chemical purge minimizes
eects 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.
The function can be initiated
manually or programmed to occur at
set intervals.
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 (certificate
included)
▪
Analog outputs, WLAN/LAN
Humidity
Komentáře k této Příručce