humidity / dew point / tempeRAtuRe / moistuRe in oil ... - Vaisala
humidity / dew point / tempeRAtuRe / moistuRe in oil ... - Vaisala
humidity / dew point / tempeRAtuRe / moistuRe in oil ... - Vaisala
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DMT143 M<strong>in</strong>iature Dew<strong>po<strong>in</strong>t</strong> Transmitter<br />
for OEM Applications<br />
The <strong>Vaisala</strong> DRYCAP ® Dew<strong>po<strong>in</strong>t</strong> Transmitter DMT143 is an ideal choice for small<br />
compressed air dryers, plastic dryers and other OEM applications.<br />
<strong>Vaisala</strong> DRYCAP®<br />
The <strong>Vaisala</strong> DRYCAP ® Dew<strong>po<strong>in</strong>t</strong><br />
Transmitter DMT143 is a m<strong>in</strong>iature <strong>dew</strong><br />
<strong>po<strong>in</strong>t</strong> measurement <strong>in</strong>strument. The<br />
transmitter can be <strong>in</strong>stalled directly<br />
<strong>in</strong>to pressurized systems at 50 bar<br />
(725 psia) maximum pressure. The<br />
long-term high performance is achieved<br />
with <strong>Vaisala</strong> DRYCAP ® technology.<br />
The sensor fully withstands gett<strong>in</strong>g wet,<br />
and therefore, the transmitter performs<br />
exceptionally well <strong>in</strong> applications that<br />
occasionally experience process water<br />
spikes, such as pipel<strong>in</strong>e condensation<br />
dur<strong>in</strong>g a system failure or start-up.<br />
The sensor is also highly resistant to<br />
particulate contam<strong>in</strong>ation, <strong>oil</strong> vapor<br />
and most chemicals, and is <strong>in</strong>sensitive<br />
to the flow rate.<br />
Long Calibration Interval<br />
The calibration <strong>in</strong>terval of the DMT143<br />
is two years. Additionally, the <strong>Vaisala</strong><br />
90<br />
DRYCAP ® Hand-Held Dew<strong>po<strong>in</strong>t</strong> Meter<br />
DM70 can be used to confirm the<br />
performance of the DMT143 without<br />
disconnect<strong>in</strong>g the transmitter. For any<br />
adjustment needs, the transmitter can<br />
be sent to <strong>Vaisala</strong> Service.<br />
The auto-calibration software works<br />
on-l<strong>in</strong>e while the process is runn<strong>in</strong>g.<br />
If the measurement accuracy is not<br />
confirmed, corrections are made<br />
automatically.<br />
Technical Data<br />
Measured Parameters<br />
www.vaisala.com<br />
Features/Benefits<br />
▪ M<strong>in</strong>iature size <strong>dew</strong> <strong>po<strong>in</strong>t</strong><br />
transmitter for e.g. small<br />
<strong>in</strong>dustrial dryer applications<br />
▪ <strong>Vaisala</strong> DRYCAP® technology<br />
with auto-calibration<br />
▪ Calibration <strong>in</strong>terval of two years<br />
▪ Dew <strong>po<strong>in</strong>t</strong> measurement range<br />
-60...+60 °C (-76...+140 °F)<br />
▪ Accuracy ±2 ºC (±3.6 ºF)<br />
▪ Withstands condensation<br />
▪ Fast response time<br />
▪ Compatible with <strong>Vaisala</strong><br />
DRYCAP® Hand-Held Dew<strong>po<strong>in</strong>t</strong><br />
Meter DM70<br />
▪ NIST traceable calibration<br />
(certificate <strong>in</strong>cluded)<br />
▪ Easy servic<strong>in</strong>g and data transfer<br />
via the RS485 user <strong>in</strong>terface<br />
▪<br />
LED alarm for exceeded <strong>dew</strong><br />
<strong>po<strong>in</strong>t</strong> level<br />
Easy Installation<br />
The DMT143 has a variety of features to<br />
choose from, <strong>in</strong>clud<strong>in</strong>g different output,<br />
<strong>in</strong>stallation options and alarm LED.<br />
Due to its small size and light weight, the<br />
DMT143 is quickly and easily <strong>in</strong>stalled<br />
<strong>in</strong> tight spaces or <strong>in</strong> small-size pipel<strong>in</strong>es.<br />
The alarm LED <strong>in</strong>dicates too high <strong>dew</strong><br />
<strong>po<strong>in</strong>t</strong> <strong>in</strong> the process. The trigger <strong>po<strong>in</strong>t</strong><br />
is preset at the factory. It can be later<br />
adjusted with the <strong>Vaisala</strong> DRYCAP ®<br />
Hand-Held Dew<strong>po<strong>in</strong>t</strong> Meter DM70 or a PC.<br />
Dew <strong>po<strong>in</strong>t</strong> temperature<br />
Measurement range(typical)<br />
-60 ... +60 °C (-76 ... +140 °F) T d<br />
Analog output scal<strong>in</strong>gs<br />
option 1<br />
-80 ...+20 °C (-112 ... +68 °F) Td<br />
option 2<br />
-80 ...+20 °C (-112 ... +68 °F) T d<br />
<strong>dew</strong> <strong>po<strong>in</strong>t</strong> at ambient pressure<br />
option 3<br />
free scal<strong>in</strong>g<br />
Accuracy <strong>in</strong> air or N2<br />
±2 °C (±3.6 °F) T d<br />
(see graph below)<br />
when the <strong>dew</strong> <strong>po<strong>in</strong>t</strong> is below 0 °C (32 °F), the transmitter outputs frost<strong>po<strong>in</strong>t</strong>
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