KNX for temperature, humidity and VOC – (flush-mounted)

Information

Datasheet

SK30-THC-VOC-PB KNX Flush-Mounted Sensor for Indoor Air Quality

The SK30-THC-VOC-PB from Arcus-EDS is an advanced KNX sensor designed to measure and control various indoor air parameters including temperature, humidity, and VOC (volatile organic compounds). With its compact flush-mounted housing (55 mm standard frame size), this unit is ideal for wall installation in KNX building automation systems. It features front control buttons, LED status indication, logic functions, and two configurable binary I/Os.

Available variants:

• White – Article number: 30533371  |  EAN: 642125989602
• Anthracite – Article number: 30533372  |  EAN: 642125989633

Applications:

• Monitoring and control of room temperature and humidity
• VOC concentration detection (air quality)
• Decentralized control of KNX valves or thermal actuators
• Automatic ventilation control based on humidity and air quality
• Evaluation of external switches or pushbuttons for switching functions

Functions and features:

• Sensors for temperature, humidity, and VOC integrated in the housing
• Calculates absolute humidity, dew point, and enthalpy
• Control functions for heating and cooling (can be combined)
• Setpoint temperatures for Comfort, Standby, Economy, and Protection modes
• Front control via two pushbuttons and/or KNX communication objects
• Fan control based on humidity/VOC thresholds and external inputs
• Dew point detection with alarm and automatic regulation if condensation risk
• Control output: 0–100% or programmable PWM for thermal actuators
• Additional temperature controller available as auxiliary
• Valve rinsing function included
• Four logic blocks for internal and external signal linking
• Two potential-free binary inputs/outputs
• LEDs for current temperature control status

Technical specifications:

• Temperature range: -25 to +80 °C
• Temperature resolution: 0.02 °C
• Temperature accuracy: ±0.4 °C (5–60 °C), otherwise ±0.8 °C
• Humidity range: 10–95% RH, resolution 0.02%, accuracy ±3% (20–80% at 20 °C)
• VOC measurement: see datasheet 2812-01
• Calculated values: absolute humidity, dew point temperature, enthalpy
• Operation: 2 front pushbuttons
• Binary I/O: 2 potential-free inputs/outputs
• Operating voltage: KNX bus voltage 21–32 VDC
• Power consumption: approx. 240 mW at 24 VDC
• Ambient temperature: -25 to +80 °C (operation and storage)
• Ambient humidity: 10–95% RH, non-condensing
• Bus coupler: integrated
• ETS compatibility: from version 4 (HLK305)
• Connection: KNX 2-pole terminal (red/black)
• Protection class: IP20
• Housing: Plastic, suitable for standard 55 mm frame

Important note:

This is a flush-mounted sensor designed for installation in standard wall boxes with 55 mm frame openings. The measurement elements are integrated into the housing. For more precise temperature control, a weighted reading using an external temperature sensor can be configured via KNX.