C-RQ-0400H-P

This is a sensor for measuring relative humidity and temperature of air with no aggressive substances in air conditioning ducts and ventilation ducts; an example of connection is shown e.g. in the Chapter on Measurement of relative humidity and temperature in the air ducts.

The actual temperature and humidity sensor is located in a plastic ABS stem, which is terminated with a dust filter. The electronic component, including the terminal block (CIB, 2x AI/I) is located inside the plastic head made of polycarbonate. The sensors in the air duct system include the central plastic holder used for mounting the sensor on the duct wall.

The sensor is designed for conventional chemically non-aggressive environments, it requires no service, only the dust filters should be regularly cleaned; they are located in the plastic part of the sensor that can be unscrewed.

The characteristics of the temperature and humidity sensor, especially with regard to adverse climatic conditions, are listed in the section describing the C-RQ-0400I module.

Mounting and connecting the sensor

The sensor should be mounted using a holder (on the right in the figure), which should be screwed on the wall of the air duct at the point of measurement, and the actual stem of the C-RQ-0400H-P sensor should be inserted through a hole in the bracket (and the duct).

Basic parameters of the sensor:

Standard lengths of the stem L1:

180 mm

240 mm

The connection of the terminal block of the module is identical with that of the C-RQ-0400I-xx module; the chapter describing it also includes a diagram of the mechanical design of the module with the glands and the layout of the terminals.