RSA-DCAA/ RSA-DCD& RSA-DCAC Carbon Dioxide (CO2) Transmitter/Controller

Applications & Features

• This series transmitters/controllers are designed for monitoring & controlling indoor air quality(CO2 concentration)
• RSA-DCAA / RSA-DCAC is suitable for wall mount and RSA-DCD is suitable for duct mount. RSA-DCD uses a patented probe structure for excellent sampling performance
• High performance NDIR digital sensor and circuit, ensure precise measurement and temperature compensation
• Stable, reliable and fast response
• 15 years sensor life without maintenance
• Digital technology applied, over voltage and reverse polarity
  protection, high reliability and anti-interference capability
• All electrical terminals are on the inside bottom, avoid any
  possible destroy to PCB when wiring(for RSA-DCAA/RSA-DCAC)
• Multiple outputs selection
• LCD & function keys can set various parameters, calibrate and adjust output, so the product can be a stand alone controller(for RSA-DCAC)

Specifications

Sensor: NDIR sensor, with ABC algorithm*
Sampling Method: diffusion
Accuracy: see models
Response time: <120s (30cc/min, low airflow)
Drift: <±10ppm/year
Range: 0~2000ppm (measurement range 400~2000 ppm)
Output: 4~20mA, 0~10V, RS485/Modbus
Load resistance:~5000(Current output),~2k0(Voltage output)
Power supply: 16~28VAC/16~35VDC
Display: Optional LCD, with unit display
Display resolution: 1ppm
Working environment: 0~50°C, 0~85%RH (Non-cond.)
Temp. Compensation: RSA-DCAA0/CDD0:10~40°C
RSA-DCAA1/CDD1:0~50°C
Storage temperature: -20~60°C
Housing: ABS+PC (RSA-DCAA), fireproof ABS/PC (RSA-DCAA)
Protection: IP30 (RSA-DCAA), housing IP65/probe IP30(RSA-DCAA)
Weight: 135g(RSA-DCAA), 230g(RSA-DCAA)
Approval: CE
*ABC algorithm: Automatic Baseline Correction, it constantly keeps track of the sensor's lowest reading over a few days interval and slowly corrects for any long term drift detected as compared to the expected fresh air value of 400 ppm CO2.

Models for RSA-DCAC & RSA-DCD


 

Specifications

Sensor: NDIR sensor, with ABC algorithm
Sampling Method: diffusion
Accuracy: see models
Temp. Compensation: RSA-DCAC0:10~40°C; RSA-DCAC 1:0~50°C
Response time: <120s (30cc/min, low airflow)
Drift: <±10ppm/year
Range: 0~2000 ppm (measure range 400~2000ppm)
Output: 2×SPST, 3A-30VDC/250VAC
Communication: optional RS485/Modbus
Power supply: 16~28VAC/16-35VDC
Display and keys: with LCD Display and 3 touch keys, see more details on LCD & Keys operation
Display resolution: 1ppm
Working environment: 0~50°C, 0~85%RH (Non-cond.)
Storage temperature: -20~60°C
Housing: ABS+PC
Protection: IP30
Weight: 135g
Approval: CE

Models for RSA-DCAC

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