Visualization of ventilation

Product catalog summary

Overview: The document provides technical specifications and features of the SMA and NMA series CO2 concentration measurement devices by C.H.C. SYSTEM, Tokyo, Japan. These devices are designed for use in various environments such as public spaces, hospitals, greenhouses, classrooms, and offices to monitor and control indoor air quality (IAQ) by detecting CO2 levels.

Specifications: The devices utilize high-precision optical NDIR (non-dispersive infrared absorption) dual beam sensors for CO2 measurement. They feature a measurement range of 0-5,000 ppm for CO2 and operate within a temperature range of 0-50°C and humidity of 20-90%. The devices offer both analog (4-20mA, 0-10V) and digital outputs (RS485 Modbus RTU) for integration with ventilation control systems.

Standards and Recommendations: The document references CO2 concentration standards from ASHRAE and Japanese regulations, recommending levels below 1,000 ppm for healthy indoor environments. It highlights the importance of maintaining CO2 levels to improve work efficiency, prevent drowsiness, and reduce health hazards.

Features: The devices provide visualization of ventilation by measuring and displaying indoor CO2 concentration. They include features such as automatic ventilation control, data logging to a MicroSD card, and alarm systems that alert users when CO2 levels exceed set thresholds. The devices are designed to improve energy efficiency by optimizing ventilation based on CO2 levels.

Design and Operation: The devices are available in slim half-size (SMA series) and standard size (NMA series) models. They include options for manual calibration, various display modes, and protective covers to prevent unauthorized operation. The devices are powered by AC100-240V or DC24V and have a power consumption of approximately 1.5W.

Applications: These devices are suitable for use in environments where maintaining optimal air quality is critical, such as hospitals, schools, and offices. They help in visualizing and controlling ventilation to ensure compliance with health and safety standards.

Catalog excerpts

Visualization of CO2 concentration Automatic ventilation （ Standard size） Measure and display indoor CO2 concentration （Slim half size） Energy efficiency by proper ventilation control Improve work efficiency, prevent drowsiness and health hazards Significant reduction in Improving the working electricity expenditures and learning environment Healthy CO2 level with consideration of energy efficiency Preferred healthy and normal level outdoors ASHRAE recommended level Building Hygiene Control Law (incl.Hospital etc.) Feel drowsy or discomfort, or smell odors Damage is expected if it continues for a long time School Hygiene Management Act Detect and inform the levels of CO2 concentration CO2 related standards U.S.A. ASHRAE Building Hygiene Control recommended value Law （incl.Hospital etc.） School Hygiene Management Act 1,000 less than 1,500 less than ppm ppm CONTACT US Planning, Designing, and sales : C.H.C. SYSTEM TOKYO, JAPAN Public spaces Greenhouses/ Plant factories Please feel free to contact us with any questions before purchasing. P

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Compliant with Ministry of Economy, Trade and Industry "Guidelines for Selection of Carbon Dioxide Concentration Measuring Instruments" High-precision optical NDIR dual beam sensor, built-in CO2 concentration correction (calibration) function Specification table Standard type Data logger built-in type Standard type （ type NMA-VRC-IIM RS485 Modbus） Data logger built-in type Half size （AC type） manufacturer's recommended retail price （DC24V type） manufacturer's recommended retail price（DC24V type） manufacturer's recommended retail price Control by RS485 Modbus RTU, relay output or proportional...

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Visualization of ventilation

Visualization of ventilation

Catalog excerpts

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