Hytronik HHC24 De-centralised, Non-addressable Master Circadian Rhythm Sensor

The Hytronik HHC24 is a de-centralised, non-addressable Master Circadian Rhythm Sensor designed for human-centric lighting (HCL) in environments such as offices, schools, and hospitals. It serves as the system "engine," utilising integrated PIR occupancy detection and an intelligent photocell to automate white balance (CCT) and dimming levels according to pre-programmed biodynamic curves.

Technical Specifications

• Operating Voltage: 220-240VAC 50/60Hz.
• System Capacity: Features a built-in 80mA DALI PSU. It can control a maximum of 40 DT8 drivers (at 2mA each) and 4 HHC23 sensor extenders (at 8mA each).
• Detection Parameters: * PIR Range: 10m x  3m (D x H) with a 360° detection angle.
• Mounting Height: Maximum 5m.
• Connectivity: Broadcast-only (non-addressable); includes two push terminals (P1, P2) for manual override of brightness and CCT.
• Standby Power: <1W.

Functional Features

• Circadian Control: 9 pre-programmed profiles (1 for office, 8 for healthcare) with automatic seasonal and geographic latitude adjustments.
• Daylight Harvesting: Integrated photocell maintains target lux levels by regulating artificial light output relative to natural light.
• Occupancy Sensing: Automatically resumes the circadian algorithm upon motion detection and switches off after a programmable hold-time to save energy.
• Commissioning: Setup is performed via the HRC-09 remote control (sold separately), including clock synchronisation and latitude calibration.

Mechanical & Compliance

• Installation: Ceiling mount with a 70mm drill hole.
• Environmental: IP20 rating; Operating temperature -20°C to +50°C.
• Standards: CB, CE, EMC, RED, RCM; complies with EN60669 and AS/NZS60669 safety standards.