Smart sensor for motion, light, and air quality

• Function description

  The SENMax is a discrete flat white round multifunctional sensor incorporating 5 sensors within a compact unit. SENMax detects motion, light intensity (lux), humidity (RH%), CO2 (ppm), and temperature (°C). This makes the sensor highly versatile. Air quality is measured through small openings on the surface. To create a healthy indoor climate and achieve energy-efficient ventilation and heating, smart-controlled ventilation and heating are essential. The SENMax is suitable for applications in both HVAC and lighting control, as well as other applications related to the available sensors.

  The product is suitable for indoor ceiling installation. This sensor can be directly connected to the Qbus two-wire bus via the included flexible connection cable. Configuration is done through System Manager III. 

   

  The SENMax, like every Qbus module, has a unique serial number, which is entered during configuration in the System Manager III software. All programmed data remains internally stored in permanent memory. This module can receive firmware updates via the Qbus bus. 

   

  The sensor can control different I/Os based on the 5 distinct sensor values:

  • Temperature: range from -10°C to +60°C. Creating an HVAC mode or thermostat mode is not required for this feature.
  • Motion: Sensitivity has two levels. There is an adjustable threshold for the size of motion to activate the I/O via a “First trigger.” To keep the I/O on, a lower volume of motion is adjustable with a “Hold-trigger.” Once the motion ceases, a follow-up time can be set between 2 seconds and 127 minutes. After this follow-up time, the linked I/O is turned off.  
    Through a scan function, you can visually test the current motion detection. Once motion detection falls below the yellow line (hold), the follow-up time begins.
  • Lux: Threshold >= or <= adjustable between 0 and 3000lux
  • CO2: Threshold >= or <= adjustable between 400-2000ppm
  • RH%: Threshold >= or <= adjustable between 0%-95%

  The controllable I/O can be of the Bistable or Dimmer type. The sensor can thus directly control a dimmer address based on lux measurement and motion detection. Additionally, you can use a night function where the dimmed light circuit activates at a lower intensity. This day clock function can be activated via clock times, logic, or manual operation. 

   

  A blue indicator LED is provided to display motion detection and/or darkness.

• Technical specifications

  General Specifications SENMax

  • Ambient Temperature:
  • Operating Temperature: -10°C to 50°C
  • Storage Temperature: -10°C to 60°C
  • Maximum Humidity: 95 %, no moisture condensation
  • Power Supply: Bus
  • Peak Load Qbus bus: 15mA
  • Max. Installation Height: 2,000 meters above sea level

  Electrical Safety: 

  • Qbus Bus: 13.8Vdc - 18Vdc very low safety voltage
  • Non-toxic, in compliance with WEEE/RoHS
  • Overvoltage CAT. I (CAT.1)

  CE: 

  • Qbus declares that this product complies with all applicable European directives and regulations.
  • The EU Declaration of Conformity is available upon request.

  Physical Specifications:

  • Housing white variant: ASA plastic, UV-resistant, self-extinguishing according to UL94-V0
  • Protection rating: IP20, EN 60529
  • Net Housing Dimensions (h x d): 28mm x 36mm
  • Housing Dimensions with connection wire / plug (h x d): 35mm x 36 / drill diameter 40mm
  • Cover plate / sensor surface dimensions: (h x d) 1.5mm x 52mm
  • Surface-mounted version dimensions: (h x d) 40mm x 60mm
  • Weight: approximately 30g (flush-mounted) – 100g (surface-mounted)
  • Sensor Range CO2: 400 –40,000ppm, accuracy 50ppm between 400 – 2000 ppm
  • Sensor Range RH%: 0 – 100%RH
    Accuracy: 6%RH (15 °C – 35 °C & RH20 % - RH65%)
    Accuracy: 9%RH (-10°C – 15°C / 35°C-60°C and <RH20% or >RH60%
  • Sensor Range Temperature: -10 - 60°C
    Accuracy 0.8°C (15°C to 35°C)

  Accuracy 1.6°C (0-15°C or 35-60°C)

  • Light intensity direct measurement 0-1200lux
• Sizing
• Explanation of symbols

  Equipment where protection against the risk of electric contact is not only based on basic insulation but also on additional protection such as double insulation or reinforced insulation. There is no possibility for grounding.

   

  Before connecting the device, it is mandatory to read the manual of the respective product. ISO7000-0434

  Power supply connection (230V) to the power supply connector. IEC 60417-5036

  CE conformity. All declarations of conformity are available upon request.

• Warranty provision

  Standard Warranty Period: 2 years from delivery date.

  The warranty is no longer valid if the module has been opened! 

  Defective modules should be sent without seal along with a description of the defect to our service department:

  QBUS N.V.

  Joseph Cardijnstraat 19

  9420 Erpe-Mere

  Belgium

  T +32 53 60 72 10

  F +32 53 60 72 19

  Email: support@qbus.be

   

General

• Safety regulations

  Read the full manual before installing and activating the module.

  ATTENTION

  • The module must be installed, started, and maintained by a certified electrical installer in accordance with the applicable legal regulations of the country.
  • Before working on the SENMax, the bus power must be turned off.
  • Never connect external voltages (e.g., 230Vac) to the Qbus bus! This will cause irreversible damage to the modules.
  • Keep out of reach of children.
  • The module must not be opened. The warranty is void if the module is opened!

Installation and wiring

• Installation

  Provide a round opening of 40mm for the built-in version. Connect the supplied cable to the bus cable. Then push the connections deep enough, so the sensor has enough free space. Next, without applying great force, insert the sensor into a 40mm opening. Do not press on the sensor surface. Consider the orientation of the barbs to place the detection field in the desired position.

  For the Stand-Alone version, first mount the base with cable routing, then connect and click the sensor onto the base.

• Power supply

  The module is powered via the bus.

• BUS connection

  It is recommended to use the Qbus cable or any other cable with a minimum of 2 conductors of 1mm² as the bus cable. The green shielded EIB cable can also be used if the conductors are paired to achieve a minimum cross-section of 2 x 1mm².