Atec Vaisala-DMT348 - Manual

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)