Detecting humidity to avoid anomalies


Detecting moisture is a necessary step if we want to avoid problems that might jeopardize the proper functioning of a heating network.

How does it work ?

The installation of the detection system is very simple. In fact, the heat pipes are pre-equipped with detection cables and a control unit, which is designed to continuously check that the electric cables are in good working order and that the insulation of the pipes remains secure and dry, is positioned at one end of the network. When the pipes are being installed, it is simply a case of connecting the cables together.

The resistance of electrical cables with respect to the heat pipe is fixed to a pre-designed maximum level (By default, this threshold is set at 100 ohms.) and, when the humidity causes the resistance to drop below that threshold, an alarm is triggered.

What risks can be incurred without this type of system?

An operator cannot visualize a leak in their network. If the network uses water, the operator will not be notified and, in case of leakage, the water will remain stored between the insulation and the outside, with the risk of triggering corrosion in the pipes. Using the method described above will allow operators to be alerted quickly and anticipate this corrosion, while detecting and locating other anomalies, such as short circuits or damage from external work.

How do I install this type of system?

The installation of a moisture detecting system is carried out via several simple steps:

Connecting the cables to the connectors: the cables are already incorporated into the polyurethane foam, they are connected using connectors. As they must not touch the tubes, they are attached by clips.
Looping cables: these operate at the ends of the network, in order to obtain a closed circuit.
Connecting the alarm to the detector.
The test phase.

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