Popular multi span Co2 controllers Carbon Dioxide detector

Gas detected

Carbon Dioxide (CO₂)

CO2 Senser

Non-Dispersive Infrared Detector (NDIR) with more than 10 years lifetime

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)

±40ppm + 3% of reading   (0~5000ppm)

±75ppm or 10% reading whichever is greater (0~20,000ppm)

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

0~5,000ppm

0~20,000ppm optional

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 non condensation

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: 2A(220VAC/30VDC), resistance load

Communication interface

Modbus RS-485, 9600/14400/19200(default)/28800 or 38400bps (programmable selection), 15KV antistatic protection, 3 independent base address

Operation conditions

0~50°C(32~122°F); 0~95%RH,

Storage conditions

0~50°C(32~122°F); 5~90%RH non condensing

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