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Atec Vaisala-DMT348 User Manual

Atec Equipment

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www.vaisala.com

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. Typical
applications include compressed air
drying and metal treatment. The
device is very reliable, easy to use
and economical to maintain.

Stability in Low Dew

Points

The Vaisala DRYCAP

®

Sensor is

immune to particulate contamination,
water condensation, oil vapor
and most chemicals. Since the
sensor withstands condensation,
its performance is unmatched for
low dew point applications that
experience water spikes in the
process. The sensor recovers rapidly
from contact with free water.

Patented Auto-Calibration

The stability of the DMT340 is
due to the unique auto-calibration

The display shows measurement trends,

real time data and history.

function, patented by Vaisala.
The auto-calibration makes the
transmitter perform a 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 are so
minor that it will go unnoticed.
This ensures low maintenance and
high performance. To continue
performance at the highest level, the
transmitter can be sent to Vaisala
for a NIST traceable calibration.
Calibration intervals depend on the
application; in normal conditions, a
NIST traceable calibration in every
two years is recommended.

Graphical Measurement

Trend and History Display

The DMT340 can be ordered with a
large numerical and graphical display
with a multilingual menu. It allows

Features/Benefits

Measures dew points from

-60 °C to +80 °C (-76 ... +176

°F) with the accuracy of ±2 °C

(±3.6 °F)

Vaisala DRYCAP® Sensor

provides accurate, reliable

measurement with excellent

long-term stability and fast

response

Withstands condensation

Unique auto-calibration feature

Optional alarm relays, local

display and mains power

supply module

Compatible with Vaisala

DRYCAP® Hand-Held Dewpoint

Meter DM70

NIST traceable (certificate

included)

3 analog outputs and a serial

interface, WLAN/LAN

MODbUS protocol support

(RTU/TCP)