Siro-CO2 Multifunctional CO2 Transmitters For Building Automation Systems

Product Details:

Current Range 4-20 Milliamperes (mA)
Connectivity Type RS-485 Modbus; 0-10V/4-20mA output
Measurement Range CO2: 0...5000 ppm; Humidity: 0...100% RH; Temperature: -20...+60C
Sensor Type Non-dispersive infrared (NDIR) sensor
Equipment Type CO2 Transmitter
Temperature Range -20 to +60 Celsius (oC)
Resolution CO2: 1 ppm; Temperature: 0.1C; Humidity: 0.1% RH
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Siro-CO2 Multifunctional CO2 Transmitters For Building Automation Systems Product Specifications

Connectivity Type RS-485 Modbus; 0-10V/4-20mA output
Display Type LCD Display
Measurement Range CO2: 0...5000 ppm; Humidity: 0...100% RH; Temperature: -20...+60C
Current Range 4-20 Milliamperes (mA)
Accuracy CO2: (50 ppm +3% of measured value); Temperature: 0.3C; Humidity: 2% RH %
Range CO2: 0...5000 ppm
Power Consumption <2 W Watt (W)
Equipment Type CO2 Transmitter
Material ABS/Polycarbonate
Temperature Range -20 to +60 Celsius (oC)
Humidity % 0...100% RH
Resolution CO2: 1 ppm; Temperature: 0.1C; Humidity: 0.1% RH
Sensor Type Non-dispersive infrared (NDIR) sensor
Power Supply 24 V AC/DC

Product Description

Siro is an indoor air quality transmitter with a modern design. The transmitter is available with several optional air quality sensors. The modular device can be equipped with CO₂ concentration and VOC (Volatile Organic Compounds) measurements or alternatively PM (Particulate Matter) measurement, and in addition, temperature and humidity measurements. It offers easy installation and adjustment, several different model options and various output signals that are configurable separately for each measurement parameter.

The Siro series devices are available with a user interface that includes an LCD display and buttons making the configuration of the device quick and easy. An external configuration tool is available for devices without the user interface. Siro utilizes the industry standard NDIR measurement principle with self-calibrating ABC logic^TM for CO₂ measurement.

Siro series devices include:

Several options for indoor air quality measurements (CO₂, VOC,
PM, rH, T).
Field configurable outputs for selected measurements.
Proportional output options including voltage (0"10 V, 0"5 V,
2"10 V) and optional current (4"20 mA).
Offset feature enabling field calibration for each measurement
parameter (CO₂, VOC, PM, rH, T).
Optional LCD-display and buttons.

General Specification

Measuring units:	CO₂ ppm, C
Optional measuring units:	% rH, VOC ppm
Calibration:	Automatic self-calibration, ABC Logic^TM
Supply voltage:	24 VDC/VAC 10 %
Output signal 1:	010 V (linear to CO₂) or optional 420 mA (linear to CO₂)
Output signal 2:	010 V (linear to Temp) or optional 420 mA (linear to Temp)
Optional output signal 3:	010 V (linear to rH) or optional 420 mA (linear to rH)
Optional output signal 4:	010 V (linear to VOC) or optional 420 mA (linear to VOC)
Operating temperature:	0+50 C
Protection standard:	IP20

Versatile Installation Options

Tailored for both wall and duct mounting, the Siro-CO2 transmitter effortlessly fits into various building layouts. The IP54 housing protects the device from dust and splashes, making it suitable for challenging environments while maintaining precise performance.

Advanced Sensing and Connectivity

Equipped with a non-dispersive infrared sensor, the transmitter ensures accurate CO2 detection with rapid response times. Its selectable output optionsincluding RS-485 Modbus, 0-10V, and 4-20mAprovide seamless integration with leading building automation and air quality monitoring systems.

Reliable Performance and Calibration

With an operational temperature range from -20C to +60C and humidity tolerance of 0100% RH, the transmitter offers stability across a wide range of conditions. Both automatic and manual calibration methods maximize accuracy, supporting ongoing optimal air quality management.

FAQs of Siro-CO2 Multifunctional CO2 Transmitters For Building Automation Systems:

Q: How do I install the Siro-CO2 Multifunctional CO2 Transmitter in my building?

A: You can mount the transmitter in either a wall or duct location, depending on your monitoring requirements. The compact and robust IP54-rated housing allows it to be installed in spaces exposed to dust and moisture without compromising performance.

Q: What applications is this CO2 transmitter suitable for?

A: The Siro-CO2 is ideal for HVAC control, building automation systems, and indoor air quality monitoring. It is designed to support spaces such as offices, residential buildings, hospitals, and other commercial areas requiring precise air quality regulation.

Q: When should I calibrate the Siro-CO2 Transmitter, and how is it done?

A: Calibration is recommended during initial setup and periodically, depending on your usage and environmental conditions. The unit supports both automatic and manual calibration, ensuring continued measurement accuracy for CO2 levels.

Q: Where can I use this transmitter within a building?

A: This transmitters flexible mounting options make it suitable for installation in room spaces, HVAC ducts, plant rooms, and other areas requiring efficient air quality monitoring and control.

Q: What is the process for integrating the transmitter with building automation systems?

A: Integration is straightforward thanks to selectable analog (0-10V/4-20mA) and digital (RS-485 Modbus) outputs. Simply choose the appropriate output to match your system requirements and connect the device using the provided terminals.

Q: How does the Siro-CO2 benefit indoor air quality management?

A: Accurate CO2, temperature, and humidity measurements enable real-time monitoring and adjustment of ventilation systems, optimizing occupant comfort while ensuring compliance with air quality standards.

Q: What are the main advantages of using this transmitter over other air quality sensors?

A: Its multifunctional capabilities, rapid response time, high accuracy, robust housing, and easy integration options offer exceptional reliability and flexibility in modern building automation and HVAC environments.

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