RT-826 F&F temperature controller

Controller functions

• Operation mode: heating / cooling.
• Correction of indications ±9°C.
• Alarm of exceeding the temperature by 5°C from the set value.
• Projection of the value of the currently measured temperature.

Operation
The controller, depending on the selected operation mode, is designed to control heating or cooling devices. In the operating mode, the display shows the value of the currently measured temperature. Closing of the controller contact (switching on of the controlled device) is signaled by lighting of the red LED. Setting the set temperature and hysteresis, as well as the operation mode, is done using two buttons on the front of the regulator. Exceeding the temperature by 5°C from the set temperature is signaled by pulsation of the display. Optionally, the regulator realizes audible and visual signaling of exceeding the measured temperature by 5°C above the set temperature (e.g. in case of failure of the controlled device or "sticking" of the regulator contact.

Operation modes
-H- - HEATING mode
Until the desired ambient temperature is reached, the relay contact is closed (heating device switched on). Reaching the desired temperature causes the contact to open (heating device off). A drop in temperature by the hysteresis value causes the contact to close again. Exceeding the measured temperature by 5°C above the set temperature is signaled by rapid pulsation of digits (measured value) on the display.

-Hb- - HEATING mode with alarm function [+5°C]
As in -H- mode. An audible alarm will sound if the measured temperature exceeds the set temperature by 5°C. As an option, it is possible to connect an external light signaling that works together with the sound signaling.

-O- - COOLING mode
Until the desired ambient temperature is reached, the relay contact is closed (cooling device on). Reaching the set temperature causes the contact to open (cooling device off). Increasing the temperature by the hysteresis value causes the contact to close again. A decrease in the measured temperature by 5°C below the hysteresis value is signaled by a rapid pulsation of digits (measured value) on the display.

-Ob- - COOLING mode with alarm function [-5°C]
As in -O- mode. If the measured temperature drops by 5°C below the hysteresis value, an audible alarm will be activated. As an option, it is possible to connect an external light signaling that works together with the sound signaling.