18 Condair CDC, CDC-NA, CDC-ST and CDC-SL
2 Condair CDC, CDC-NA, CDC-ST and CDC-SL
CDC / CDC-NA CDC-ST / CDC-SL
2.1 Functional description
The Condair CDC, CDC-NA, CDC-ST or CDC-SL serve for the humidity measurement in air ducts. For the
humidity measurement a capacitive humidity sensor is used. The microprocessor samples the humidity
once per second. It calculates an averaging signal over a preset number of seconds and generates the
output signal. The applied measuring technology guarantees excellent reliability and long term stability.
The output signal of the sensor 0-10VDC, 2-10VDC or 4-20mA, 0-20mA may be customized by jumpers.
2.2 Safety
Please observe all local regulations concerning electrical installations.
The installation work must be performed only by adequately qualied personnel (electrician or work-
man with equivalent training).
Please observe all local regulations concerning electrical installations.
Warning - danger of electric shock! Before starting the installation work the unit to which the Condair
CDC will be connected must be disconnected from the mains and may be reconnected to mains only
after all installation work has been completed.
Warning! The electronic components inside the Condair CDC and the humidier are very susceptible
to electrostatic discharges. For the protection of these components, measures must be taken during all
installation work to prevent damage caused by electrostatic discharge (ESD–protection).
2.3 Delivery
The delivery includes:
– Humidity sensor Condair CDC, Condair CDC-ST or Condair CDC-SL
– Cable gland
– Fixing material
– Installation manual
– Duct ange (Condair CDC-ST only)