Indoor Type CO2 Transmitter | GS23

Description Indoor Type CO2 Transmitter | GS23 Specification Display Display LCD module without backlight Display readout One line character Digit 4 digits Digit height 17.84 mm Input CO2 NDIR sensor Measuring range CO2 0 … 2000 PPM Output Analog output 0 … 10 V / 4 … 20 mA Modbus RS-485 Signal connection 3-wire Load resistance Max. 250 Ω for 1 output Min. 10 KΩ for V output Warm-up time ＜2 min; Stable time 20 min Response time t90＜2 min Sampling time About 6 sec Data logger Via RS-485 by using eYc free software Accuracy(at 25°C;101.3 kPa) CO2 ±40 PPM±3% of reading Environment Medium Air Operating Temp. 0 … 50°C Operating Humid. 0 … 85%RH Storage temperature 20 … 60°C Electrical Power supply DC 24 V & AC 24 V±10% Current consumption DC：150 mA / AC：120 mA Starting current DC 24 V：250 mA / DC 12 V：550 mA AC 24 V:230 mA Electrical connection Analog & communication:4P connector Installation Installation Wall mount Protection IP rating IP20 Electrical protection ■ Polarity protection ■ Short-circuit Certification Certification CE Material Housing PC(PC-110)(UL94V-2) Weight 100 g *Please make sure the product and the device which connect with RS-485 are on common ground, to avoid damaged product. Indoor Type CO2 Transmitter | GS23