P.O. Box 26, FIN-00421 Helsinki, FINLAND
Tel: +358 9 894 91
Fax: +358 9 8949 2485
www.vaisala.com
The Vaisala DRYCAP® Hand-
Held Dewpoint Meter DM70
offers accurate and fast
measurement for industrial
dewpoint applications, such as
compressed air, metal
treatment and plastics drying.
DM70 Hand-Held Dewpoint Meter
for Spot-Checking Applications
The Vaisala DRYCAP® Hand-Held
Dewpoint Meter DM70 measures
dewpoint temperature accurately over
a wide measurement range. The probe
may be inserted directly into
pressurized processes, and it responds
rapidly from ambient to process
conditions. The sensor withstands
condensation and fully recovers from
getting wet.
Two probe models
Two models, both with auto-
calibration, are available. The DMP74A
is for dewpoints between -40...+60 °C.
The DMP74B with Sensor Purge is for
low dewpoints. Sensor Purge heats and
dries the sensor, making the response
from ambient to dry conditions
exceptionally fast. This allows rapid
spot checking measurements in
dewpoints down to -60 °C.
Low maintenance need due
to innovative auto-calibration
The advanced Vaisala DRYCAP®
Sensor provides reliable and high-
performance dewpoint measurement
with revolutionary long-term stability.
The result is a long calibration interval
and small maintenance cost.
Vaisala's auto-calibration procedure
works on-line and corrects any dry-end
drift in the calibration curve.
The meter is factory calibrated against
internationally traceable standards and
delivered with a certificate. The DM70
can also be sent to a Vaisala Service
Center for a traceable recalibration.
Easy-to-use user interface
The DM70 has a versatile and easy-to-
use, menu-based user interface and a
clear graphical LCD display with data-
logger function. It can also be used as a
tool for reading the output of fixed
Vaisala dewpoint transmitters, like the
DMT242, DMT142 and DMP248.
Various display variables
The DM70 displays one to three
parameters at a time, either
numerically or graphically. Several
units can be selected. An analog output
option is also available.
Features/Benefits
• Designed for industrial spot
checking and field calibration
• Two models: accurate measurement
ranges -40...+60 °C (-40…+140 °F)
and -60...+20 °C (-76…+68 °F)
• Vaisala DRYCAP® Sensor with
patented autocalibration function
• Low maintenance need due to
superior long-term stability
• Sensor withstands condensation
• Fast response, enhanced by Sensor
Purge option
• Easy-to-use user interface
• Data can be logged and transferred
to a PC via MI70 Link software
• Compact, small and light
• NIST traceable (certificate
included)
MI70 Link PC connection
The DM70 has a MI70 Link Windows®
software program for transferring
logged and real time measurement
data from the DM70 to a PC.
Lightweight construction
The DM70 is small and rugged, and
therefore an ideal choice for
demanding applications. The long
battery life provides convenient use in
the field.
The graphical display helps the user to know
when the dewpoint plateau is reached.
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