Smart sensor for motion, light, and air quality

• Function description

  The SENMaxPre is a discrete flat white round multifunctional sensor that contains 5 sensors within a single compact unit. SENMaxPre detects presence, light intensity (lux), humidity (RH%), CO2 (ppm), and temperature (°C). This makes the sensor highly versatile. Air quality is measured through openings in the surface. Utilizing smart controlled ventilation and heating is necessary to create a healthy indoor climate and efficiently manage energy use. SENMaxPre is suitable for applications in both HVAC and light control, as well as other applications related to the available sensors.

  The product is suitable for indoor ceiling mounting. This sensor can be directly connected to the Qbus two-wire bus via the supplied flexible connecting cable. Configuration is performed via System Manager III. 

   

  The SENMaxPre, like every Qbus module, has a unique serial number (Prefix 0059) that is entered during configuration in the configuration software System Manager III. All programmed data is stored internally in permanent memory. This module can receive firmware updates via the Qbus bus. 

   

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

  • Temperature: Range from -10°C to +60°C. Creating an HVAC mode or thermostat mode is not required.
  • Presence detection: Sensitivity has two levels. A threshold can be set for sensitivity of presence detection to activate the I/O via an “Activation trigger”. To maintain the I/O, a lower threshold can be set for presence with a “Maintain trigger”. After presence is no longer detected, a run-on time can be set between 2 seconds and 127 minutes. After this run-on time, the linked I/O is turned off. 
    Through a scan function, the current presence detection can be visually tested. Once the presence detection goes below the yellow line (maintain), the run-on time starts.
  • Lux: Threshold >= or <= adjustable between 0 and 3000lux
  • CO2: Threshold >= or <= adjustable between 400-2000ppm
  • RH%: Threshold >= or <= adjustable between 0%-95%

  The controlled I/O can be of the type Bistable or Dimmer. Thus, the sensor can directly control a dimmer based on lux measurement and presence detection. Additionally, a night function allows the dimmed light circuit to turn on at a lower intensity. This day clock function can be activated via clock times, logic, or regular operation. 

   

  A blue indicator LED is provided for displaying presence detection.

• 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
  • Maximum 10 sensors per bus, 20 sensors per controller

  Electrical Safety: 

  • Qbus Bus: 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: ASA plastic, UV-resistant, self-extinguishing according to UL94-V0
  • Protection rating: IP20, EN 60529
  • Net Housing Dimensions (h x d): 31mm x 60mm
  • Housing Dimensions with connection wire / plug (h x d): 37mm x 60 / drill diameter 40, 44, 48mm
  • Cover plate / sensor surface dimensions: (h x d) 1.5mm x 60mm / drill diameter 40, 44, 48mm
  • 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
  • Detection Range at 2.5m Height: ∅6m at desk height, ∅7m at ground level
• 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: [email protected]

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.