Atec Vaisala-DM70 - Manual

DM70 Hand-held Dewpoint Meter
for Spot Checking and Field Verification
FEATURES/BENEFITS
• New DRYCAP ® polymer-based sensor provides
accuracy, reliability, long-term stability and
fast response
• Unique automatic self-calibration
• ± 2° C accuracy down to -58 °F (-50 °C )
• Data logging and transferring capabilities
• Multilingual, menu-based interface
• Numeric and graphical display
• Sample cell adapter for pressurized air lines
The DM70 provides a new level of fuctionality in hand-
held dewpoint meters. It serves as an independent data
logger, and an integrated calibration reference for the
DMT242 and DMP246 transmitters.
The DM70 measures dewpoint temperature accurately in
a wide measurement range: from -58 °F to +140 °F
(-50 °C to +60 °C). It features a fast response time
between start-up and low or high process dewpoints.
The DM70 incorporates Vaisala’s advanced DRYCAP ®
polymer-based technology, which enables reliable and
high performance dewpoint measurement. The probe
withstands condensation and may be placed directly in
pressurized spaces.
Numerical and graphical measurement data
Measurement data can be displayed numerically or
graphically in the LCD display. One key press changes
the readout to a real time graphics display, so the user
will know when the dewpoint plateau is reached. The
graphic history shows the data curve from the time the
device was turned on. It is easily scalable in the display.
Data-logging & data-transferring capability
The DM70 can be used as an on-site data-logger. To
simplify operation, the DM70 has a sophisticated MI70
Link Windows ® software program. It is a practical tool for
transferring logged data and real time measurement data
from the DM70 to a PC.
New Dewpoint Technology
The DRYCAP ® measurement technology, with the
patented auto-calibration feature, provides revolutionary
long-term stability that results in a long calibration
interval. Another advantage is the sensor’s durability
against condensation.
The DM70 is calibrated at the factory against internation-
ally traceable standards, and delivered with a calibration
certificate. It can also be sent to a Vaisala Service Center
for a traceable re-calibration.
Various Applications
Spot-checking instrument
The DM70 has a fast response time for temporary
dewpoint measurements. It can be used in industrial
dewpoint spot-checking applications, such as com-
pressed air lines and plastic molding processes.
Field-calibration instrument
The DM70 can perform the one-point calibration check
in the process for Vaisala’s DMT242 and DMP248 fixed
dewpoint transmitters. Transmitters can be connected to
DM70 with optional connection cables.
DSC74 Sample Cell Adapter
The DM70 can easily be connected to pressurized
processes by using the optional Sample Cell Adapter/
Quick Connector DSC74.
DM70KIT
The DM70 Kit includes:
• DM70 indicator + probe with rechargeable battery
and 115 VAC adapter
• MIK70 Link and analog output signal cable
• DMP74 Probe
• DSC74 Sample cell and quick connector
• Carrying case
• Certificate of calibration, traceable to NIST
DM70 Hand-held Dewpoint Meter with
optional Sample Cell Adapter