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DMT340 Series Dewpoint and Temperature
Transmitters for Very Dry Conditions
The Vaisala DRYCAP
®
Dewpoint and
Temperature Transmitter Series
DMT340 is designed for industrial
low-humidity applications such as
compressed air drying and metal
treatment. The transmitters are very
reliable, easy to use, and economical
to maintain.
Stability at Low Dew
Points
The Vaisala DRYCAP
®
sensor is
immune to particulate contamination,
water condensation, oil vapor, and
most chemicals. Since the sensor
is condensation-resistant, its
performance is unmatched in low
dew point applications where water
spikes occur in the process. The
sensor recovers rapidly from contact
with free water.
Unique Auto-Calibration
Feature
The stability of the DMT340 series
is due to its unique auto-calibration
function, developed by Vaisala. This
The display shows measurement
trends, real-time data, and
measurement history.
feature allows the transmitter to
perform calibration and adjustment
by itself while the measured process
is running. If the measurement
accuracy is not confirmed, corrections
are made automatically. The
procedure is so quick and corrections
so minor that it causes no disruption,
ensuring easy maintenance and
high performance. To maintain high
performance, transmitters can be sent
to Vaisala for calibration. Calibration
intervals depend on the application; in
normal conditions it is recommended
to have calibration performed every
two years.
Graphical Display of
Measurement Data and
Trends for Convenient
Operation
The DMT340 features a large
numerical and graphical display with
a multilingual menu and keypad.
It allows users to easily monitor
operational data, measurement
trends, and access measurement
history for the past 12 months.
The optional data logger, with
real-time clock, makes it possible
to generate over four years of
measurement history and zoom in on
any desired time or time frame.
Features/Benefits
▪
Measures dew point from
-60°C to +80 °C (-76 ...
+176°F) with an accuracy of
±2°C (±3.6 °F)
▪
Vaisala DRYCAP® sensor
provides accurate, reliable
measurement with excellent
long-term stability and a fast
response time
▪
Condensation-resistant
▪
Unique auto-calibration feature
▪
Compatible with Vaisala
DRYCAP® Hand-Held Dewpoint
Meter DM70
▪
NIST traceable calibration
(certificate included)
▪
Graphical display and keypad
for convenient operation
▪
Optional alarm relays and
mains power supply module
▪
Analog outputs, RS232/485,
WLAN/LAN
▪
MODBUS protocol support
(RTU/TCP)
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