1 taking care with the sensors, 8 warranty – NOVUS RHT-P10-485-LCD User Manual
Page 6
RHT-WM-485-LCD, RHT-DM-485-LCD and RHT-P10-485-LCD Transmitters
NOVUS AUTOMATION
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7.1 TAKING CARE WITH THE SENSORS
The calibration of the humidity sensor may be changed if it is exposed to
contaminant vapors or extreme humidity and temperature conditions for long
time periods. For accelerating the calibration recovery follow the procedure
as described below:
• Remove the sensor from the capsule.
• If there are solid particles on the sensor, wash it with water.
• Place the sensor within a 80 °C (+/- 10°C) oven for 24 hours.
• Keep the sensor in a place at a temperature between 20 and 30 °C and
humidity over 75% RH for 48 hours.
• Place the sensor back in the capsule.
IMPORTANT
The sensor used in this transmitter may be damaged or become out of
calibration if it is exposed to chemical agents contaminated atmosphere.
Hydrochloric Acid, Nitric Acid, Sulphuric Acid and Ammonia in high
concentrations may damage the sensor. Acetone, Ethanol and Propylene
Glycol may cause a reversible measurement error.
8 WARRANTY
Warranty conditions are available on our web site