S+S Room humidity, tempe­rature and CO2 sensor - RFTM-CO2-Modbus

S+S Room Sensor - RFTM-CO2-Modbus Overview

The S+S Room humidity, temperature, and CO2 sensor - RFTM-CO2-Modbus from the renowned manufacturer S+S Regeltechnik GmbH is a multifunctional room climate sensor at its highest level of expansion. This sensor comes equipped with a Modbus connection and is housed in an elegant plastic casing with a snap-on cover. It offers the option of being with or without a display, featuring the RFTM-CO2-Modbus type variant with or without a setpoint potentiometer. This sensor is designed to measure the environmental parameters of humidity (0-100% RH), temperature (0-50°C), air quality (VOC) (0-100%), particulate matter (PM) (0-1000 µg/m3), and CO2 content (0-5000 ppm). It can also function as a room operating device (% setpoint).

Benefits and Features

- Provides precise monitoring and control of the entire room climate, facilitating energy-efficient and demand-oriented room ventilation. - Reduces operational costs and enhances comfort by ensuring optimal indoor air quality. - Suitable for various settings including offices, hotels, conference rooms, residential spaces, and retail establishments. - Features a long-term stable digital humidity and temperature sensor for accurate measurements. - Utilizes an advanced (VOC) gas sensor for determining air quality and an optical NDIR sensor for measuring CO2 levels. - Includes an optical particulate matter sensor to detect particles in the range of 0.3 to 10 micrometers.

Innovative Modbus Technology

The sensor boasts an innovative Modbus interface with galvanic isolation and RS485 connectivity. It offers a switchable bus termination resistor, DIP switches for configuring bus parameters, and allows for setting the bus address in a power-off state. The sensor is equipped with internal LEDs for telegram status indication, two separate push-in terminals, and a two-line display that can be programmed in the 7-segment and dot-matrix areas. Additionally, the sensor comes factory-calibrated and can be fine-tuned by a professional based on environmental conditions.

Technical Specifications

- Power Supply: 24 V AC/DC (±10%) - CO2 Sensor: Optical NDIR sensor with automatic and manual calibration - Sensors: Digital humidity sensor with integrated temperature sensor - Bus Protocol: Modbus (RTU mode), address range adjustable from 0 to 247 - Measurement Range: 0-5000 ppm for both CO2 and Air Quality - Humidity Deviation: Typically ±2% (20-80% RH) at +25°C, otherwise ± 3.0% - Temperature Deviation: Typically ±0.2 K at +25°C - Humidity Range: 0-95% RH (non-condensing) - Temperature Range: 0-50°C - Housing: Plastic, ABS material, Pure White color (similar to RAL 9010) - Dimensions: 98 x 98 x 33 mm (Baldur 2) - Protection Class: IP30 (According to EN 60529) Please refer to reputable sources for the most current technical data of the S+S Room humidity, temperature, and CO2 sensor - RFTM-CO2-Modbus from S+S Regeltechnik GmbH.