CO2 Monitor and Controller

Specifications

Product features

• Multiple control functions and high performance with low prices
• Application in all ventilation systems, or public places
• Wall mounting type and duct type selectable
• Built-in pump type for some special applications
• LCD display detecting both CO₂ level and temperature, also relative humidity (optional)
• NDIR infrared CO₂ sensor with special ABC logic self calibration system and 15 years long lifetime
• It makes the CO₂ measurement more accurate and more reliable
• Specially provide the altitude calibration
• Microprocessor control, quick response, high precision
• Providing strong control outputs with up to three 0 to 10V analog outputs and three relay dry-contact outputs
• Analog output with two alternatives: PID control output or linearized over full range output
• Different control mode for delays selected by users applications such as ventilation systems or greenhouses
• Locale adjustable range of CO₂: 0 to 2,000ppm/0 - 5,000ppm/20,000ppm/0 to 50,000ppm
• Adjustable range of temperature: 5 to 45C
• Adjustable range of humidity: 5 to 95% RH
• RS-485 communication interface optional, 15kV anti-static protection, independent base address setting
• Specially provide a simple CO₂ controller with 6 indicator lights and a relay output to control a fan
• CE approval

• Specifications  

• Gas detected	Carbon Dioxide (CO2)
  Sensing element	Non-Dispersive Infrared Detector (NDIR)
  Temperature sensor	NTC
  Humidity sensor	HS series capacitive sensor
  Temperature dependence	0.2% FS/°C
  Temperature correction	Self compensation
  Power supply	24VAC/VDC, or 100~240VAC, 60HZ, selectable with the order
  Consumption	3.5 W max. ; 2.5 W avg.
  Accuracy@25°C(77°F)	±30ppm + 3% of reading
  Stability	<2% of FS over life of sensor (15 yr typical)
  Calibration interval	ABC Logic Self Calibration Algorithm
  Non linearity	<1% of FS
  Pressure dependence	0.13% of reading per mm Hg
  Altitude calibration	Programmable from 0-9,900m in 100m increments
  Response Time	<2 minutes for 90% step change
  Signal update	Every 2 seconds
  Warm up time	2 hours (first time) 2 minutes (operation)
  CO2 measuring range	0~2,000ppm (default) 0~20,000ppm, programmable selection 0~50,000ppmt
  CO2 setting & Display resolution	1ppm
  Temperature measuring/ setting range	0~50°C(32~122°F)/ 5~45°C(41~113°F)
  Humidity measuring/setting range	0~99%RH/ 5~95%RH
  Analog output	0~10VDC linearized output or PID control output, selectable by end users
  Output resolution	10Bit
  Relay output	One or two dry contact outputs with programmable selection to control CO2, temperature, humidity Rated switching current: 3A(220VAC/30VDC), resistance load
  Communication interface	RS-485, 9600/14400/19200(default)/28800 or 38400bps (programmable selection), 15KV antistatic protection, 3 independent base address, max network node 64
  Flow rates	Diffusion version 80 ~ 120 cc/min Flow through version 40~50cc/min
  Operation conditions	0~50°C(32~122°F); 0~95%RH,
  Storage conditions	10~50°C(50~122°F)/ 20~60%RH non condensing
  NDIR life	15 years
  Weight	360g
  Dimensions	130mm×90mm×40mm
  Installment standard	65mm×65mm or 2”×4”wire box
  Interface connections	Maxi. 9 terminals
  Wiring standard	wire section area<1.5mm2
  Approval Standard	CE-Approval
  Programming and selection	Via internal jumpers and push-buttons on the panel

   

  Application
Hotel, exhibition hall, hospital, shop, restaurant, air port, train station, theater and other public places
House, villa, office, meeting room, classroom and other places
Greenhouse, mushroom, grown room and other agricultural applications
All ventilation systems