Protection and signaling devices

Carel’s protection and signaling devices are an added security for your system, by avoiding downtime, damages or risks to personnel.

ColdWatch: trapped personnel alarm kit

EN 378-1 regulation mandates the installation of a system for reporting trapped personnel for cold rooms with a volume greater than 10 m³ and operating below 0 °C.

ColdWatch is the cold room alarm kit for low temperature rooms. There are two parts to install: an external control unit and an internal emergency button.

When the internal button is pressed, a trapped person will asks for help by activating a red blinking LED light and a powerful 100-decibel siren. ColdWatch also provides a configurable auxiliary relay, useful for activating a telephone dialer.

Phase sequence controller (RSF)

The RSF modules control the correct presence and sequence of input phases L1/L2/L3, in addition to measuring the voltage of the three phases.

Phase sequence controllers have an output relay, nergized only if the sequence is correct and if each individual phase falls within a range corresponding to ± 10% of the rated voltage (depending on the model).

These devices are compact and havemodular dimensions, for DIN rail mounting.

Antifreeze thermostat

This antifreeze thermostat protects heat exchangers and electric heaters in air conditioning and refrigeration systems, and check that the temperature does not fall below a critical value.

These thermostat also offer self-protection in the event of a fault of the sensitive element.

Air flow switch

The air flow switch monitors flows on ducts, by activating a safety swich when flow levels are reduced or absent.

The air flow switch was designed for air conditioning and air handling systems, for monitoring air or non aggressive gases.

Antiflooding system

The CAREL antiflooding system is used to detect the presence of water in an environment. 

This sensor is generally used for the protection against flooding of critical infrastructures such as calculation centers, offices, laboratories, etc.

The sensor activates itself when it delects water presence, switching a relay ON.

Level sensor

The level sensor is a device that detects the amount of refrigerant present in the exchanger.

A resistive value proportional to the measured level is supplied to the output. The output must be connected to a Carel electronic control set up for operation.

The sensor is made of stainless steel, able to withstand extreme working conditions.

Smoke and fire detector

Smoke and fire detectors detect sudden and dangerous temperature changes or increased smoke.

These detectors self-calibrate and they not lose sensitivity, since they adapt to environmental conditions.

Combined light and presence sensor

Sensors for ambient light detection and presence detection, for intelligent management of electrical loads and energy saving.

Combined light and presence sensors are compatibile with Carel and third-party electronic controllers.