Vaisala DRYCAP DMT143, User Manual

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If the gas temperature is higher than the specified maximum operating temperature of the
transmitter, gas sampling and cooling it to ambient temperature (for example, 20 °C / 68 °F) is
recommended. Note that the dew point temperature must be clearly lower than the ambient
temperature to avoid condensation in the sampling line. Sampling from the process is easy by
using Vaisala sampling cell options.
The DMT143 is light in weight, which means that it can be installed in a sample pipeline in the
sampling cells without the need of any additional mechanical support. You can use a standard
G1/2" T-shaped pipe fitting (not available from Vaisala) when installing DMT143 into a pipeline.
More Information
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Sampling Accessories (page 28)
4.3 Installing the Transmitter
1. Remove the yellow transport protection cap from the transmitter.
2. The DMT143 models with a parallel thread (G1/2" ISO 228/1) require a sealing ring for a
tight connection. Use the sealing ring that is provided with the transmitter. Make sure the
threads on the mounting point match your transmitter.
For the model with NPT thread, do not use a sealing ring.
Chapter 4 – Installation
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