ELSNER 70821 Cala Touch KNX CH Room controller, black

The Cala Touch KNX CH room controller from the ELSNER 70821 series is a versatile and powerful device for the KNX bus system, designed to manage and monitor various aspects of the domestic or commercial environment.

Key Features

This device features a 2.3-inch (59 mm) colored touch display with a resolution of 320 x 240 pixels, embedded in a glass, plastic and metal frame, available in two colors: white (RAL 9010) and black (RAL 9005).

Environmental Control

• 1 temperature control (including mode change and indication if heating or cooling is active), which can also be used as an extension unit to operate another controller.
• 3 operating operations (dimming, windows) with buttons, sliders and position display (including the position of the blades).
• 3 light switches or adjustments (with percentage display).
• 1 x RGB light control
• 1 light color temperature setting.
• 1 HCL control (adaptation of the color temperature of the light over adjustable periods of time).

Scenarios and Timers

• 1 scenario function (4 scenarios with recall, storage and status indication).
• Weekly timer switch with 8 periods.

Information and Settings

• 2 pages of information (each displays 2 text objects).
• Device settings.
• Protective screen (clock, clock/internal/external temperature alternately, off) that can be activated or deactivated.
• Keypress tone that can be turned on or off.

Logic and Calculations

• 4 inputs for binary contacts or T-NTC temperature sensors.
• 8 AND logic gates and 8 OR logic gates, each with 4 inputs. All switching events, as well as 16 logic inputs (in the form of communication objects), can be used as inputs for logic gates.
• 8 multifunction modules (calculators) to modify input data through calculations, condition queries or data point type conversion.
• 4 variable comparators manipulated to output minimum, maximum or average values. 5 inputs each for values received through communication objects.
• Summer compensation for cooling systems. A characteristic curve matches the target temperature in the room with the outside temperature and sets the minimum and maximum target temperature values.

Physical Characteristics

• Dimensions: 60 mm x 60 mm with mounting depth ≥ 10 mm.
• Total weight: about 70 g
• Ambient temperature: 0... +45°C.
• Ambient humidity (non-condensing): 5...95%.
• Storage temperature: -25... +70°C.
• Overvoltage category: III.
• Degree of pollution: 2.