For optimal CO2 concentration management in greenhouses! The world's first CO2 controller compatible with "zero concentration difference CO2 application."
The "SA-K Series" is an agricultural CO2 controller that works in conjunction with CO2 generators to maintain the CO2 concentration in greenhouses at appropriate levels. When the ventilation windows are open, it applies zero concentration difference CO2, and when the windows are closed, it applies high concentration CO2, allowing for automatic switching control (managed by a single CO2 sensor). 【What is zero concentration difference application?】 This is the application of CO2 that brings the indoor and outdoor CO2 concentration difference to zero. Even with the windows open, during photosynthesis, the indoor CO2 concentration decreases (250-350 ppm) compared to the outdoor air (400-450 ppm), resulting in about a 20% reduction in photosynthesis compared to using outdoor air. With zero concentration difference application, CO2 is absorbed by plants without waste, enabling photosynthesis to occur with nearly 100% efficiency. 【What is high concentration CO2 application?】 By setting the indoor CO2 concentration to a high level (700-1000 ppm), it can further promote the photosynthesis of crops. 【Recommended for those who:】 ■ Find it cumbersome to manage CO2 concentration in greenhouses ■ Want to improve production efficiency 【Benefits of introduction】 ■ Reduction of labor in operations ■ Improvement in plant production efficiency *For more details, please refer to the PDF materials or feel free to contact us.
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basic information
【Features】 ■ Automatic switching control between zero concentration difference CO2 application and high concentration CO2 application ■ High-precision NDIR sensor (non-dispersive infrared) ■ Compatible with CO2 cylinders / combustion-type CO2 generators ■ Option to measure/fix outdoor CO2 concentration ■ Sunlight detection using a photo sensor (sold separately) ■ Emergency notification through blinking of the main unit display *For more details, please refer to the PDF document or feel free to contact us.
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Line up（3）
| Model number | overview |
|---|---|
| SA-K03 | ■Measurement method: NDIR (Non-dispersive Infrared) dual cell ■Measurement range: 0–3000ppm ■LED display: Zero concentration difference CO2 application・High concentration CO2 application ■LCD display: CO2 concentration (indoor・outdoor)・CO2 valve (generator) ■Measurement output: CO2 concentration・Control amount (4–20mA) ■Dimensions: W170×H126× ■Power supply: AC100–220V 0.3W ■Recommended pump flow rate: 0.1–0.5L/min |
| SA-P01 | ■Pump unit ■Used in conjunction with SA-K03 |
| SA-S01 | ■Used in conjunction with SA-K03 ■Confirmation of sunlight (for photosynthesis) |
catalog（5）
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Company information
Since its establishment in April 1979, CHC System Co., Ltd. has been recognized as a distinctive environmental engineering company focused on environmental conservation. We specialize in the construction of building facilities primarily related to air conditioning, the planning, manufacturing, and sales of artificial marble products such as system kitchens and wash counters, and the development and sales of CO2 controllers that achieve energy efficiency and a comfortable indoor environment, earning high praise for our quality and customer service. Currently, we have established a construction company and an architectural design office within our group, expanding our business as a comprehensive construction and equipment company that handles everything from planning and designing buildings to executing and managing various facility construction projects. We aim to continue growing while seeking total harmony between architecture and facilities. In the future, in addition to architecture, facilities, and design, we will expand our business as an environmental equipment manufacturer that responds to societal needs, striving to be of service to everyone.