What does a current sensing relay do in a humidifier?
The Aprilaire 50 current sensing relay is used to turn any humidifier on when the indoor blower of the air handler is energized. The relay makes installing any humidifier easier than ever before. Designed to be installed in series with the 24 volt circuit. Installation instructions included.
What is Model 50 current sensing relay?
The Model A50 Current Sensing Relay measures electrical current rather than voltage. This type of relay is more reliable and less expensive than using sail switches, pressure switches or other types of relays. The relay is easily installed around the common lead of the blower motor and inserted into the circuitry.
How do you install a current sensor?
For new installations, the installation is just as easy. Just remove the top portion of the sensing ring, place the conductors inside, and snap the top back in place. The transducer uses two wires to connect to the power supply and the load, programmable logic controller, panel meter or data acquisition system.
What is current monitoring relay?
Current Monitoring Monitoring relays are an inexpensive solution that help monitor important parameters of electrical and physical systems. There are various monitoring relays such as voltage monitoring, current monitoring, frequency monitoring, temperature monitoring etc.
How does a current sensing switch work?
The sensor works when the current conductor passes through a magnetically permeable core that concentrates the conductor’s magnetic field. The Hall effect device, which is mounted within the core, is at a right angle to the concentrated magnetic field and a constant current (in one plane) excites the Hall device.
How do you test a current relay?
Current relay contacts can be checked by putting the ohmmeter probes on the relay terminals connected to the contacts. When the relay is upright, the resistance reading should be infinite (open). When the relay is flipped upside down, the resistance reading should be zero (shorted).
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