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Advice on use
The hygrotest 600 humidity and temperature transmitter is
employed in a wide variety of industrial applications. Some
advice which can lead to better measuring results is given
below.
General
The better the process air flows past the probe, the sooner
the transmitter will display the correct temperature and
humidity.
- Low flow rate and uncontaminated atmosphere
Use slotted sensor caps (0554.0755) to achieve a faster
response time.
- Atmosphere containing dust or particles
Use a PTFE sintered cap (0554.0647) to protect the
sensor against contamination.
- Strong flow rates up to 10 m/s with few particles
Use a stainless steel sintered cap (0554.0647).
- Flow rates >10 m/s or lots of particles
Fit a deflector in the direction of flow and mount the
probe away from the wind with a suitable sintered cap.
- Applications in which drips may form
Install the probe in such a way that condensate can run
off. Use dew protection (0554.0166)(see drawing). You
may need to use a PTFE sintered cap with a drill hole
(0554.9913).
- Measuring humidity in chemical gases
Gas concentrations deviating from the natural ambient
atmosphere may have an influence on the values or
damage the humidity sensor.
- For installation support please contact your local testo
partner.
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