Modbus RS485 CO2 Controller / Carbon Dioxide Monitor , LCD Display

Gas detected

Carbon Dioxide (CO2)

Sensing element

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/℃

Temperature correction

Self compensation

Power supply

100VAC~240VAC or 24VAC, 50/60HZ±10%, selectable in order

Consumption

3.5 W max. ; 2.5 W avg.

Accuracy@25℃(77℉)

±40ppm + 3% of reading (0~5,000ppm)
±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

24 hours (first time)
10 minutes (operation)

CO2 measuring range

0～5,000ppm
0～20,000ppm? (optional)

CO2 setting & Display resolution

1ppm

Temperature measuring range

-20～60℃(-4～140℉)

Temperature setting range

5～45℃(41～113℉)

Humidity measuring range

0～99%RH

Humidity setting range

5～95%RH

Output resolution

10Bit

Relay output

Three ways dry contact outputs with programmable selection to control CO2,temperature,humidity
Rated switching current:? 2A(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

80 ~ 120 cc/min

Operation conditions

0~50℃(32~122℉); 0~95%RH, non condensing

Storage conditions

0~50℃(32~122℉); 0~90%RH

Weight

360g

Dimensions

130mm×90mm×40mm

Installment standard

65mm×65mm or 2”×4”wire box

Wiring standard

Wire section area<1.5mm2

Approval Standard

CE-Approval