GS43/44 CO2 Transmitter(Indoor / Duct Type)

● Accurate and excellent long-term life cycle
● Measuring up to 10000 PPM
● Voltage or current output and optional RS-485, and display
● Free software configuration

Monitoring air quality and saving energy / Environmental control and monitoring system / Ventilation system control for building, library, train station, supermarket, office / Agriculture, green houses, fruit and vegetable storage, mushroom farming, hatcheries and incubators

Display
Display：Without backlight
Digit：5 digits(upon request)
Digit height：5.56 mm

Input
Sensor type：NDIR sensor
Measuring range：2000 / 5000 / 10000 PPM

Output
Output：4 ... 20 mA / 0 ... 10 V
Modbus：RS-485
Signal connection：3-wire
Sensitivity：±1 PPM ±1% of measured value
Load resistance：Voltage output：≧10 KΩ / Current output：< 250 Ω
linear accuracy(at +25°C)：400 ... 2000 PPM：±40 PPM ±3% of  reading / 2000 ... 10000 PPM：±250 PPM ±3% of  reading
Output calibration (ZERO & SPAN)：Factory software calibration
Warm-up time：< 2 min. ; stable time 20 mins.
Response time(t90)：GS33：< 2 min.；GS34：< 6 min.
Sampling time：About 6 sec.
ADC default：2000 PPM：On；5000 PPM / 10000 PPM：Off 

Environment
Medium：Non-aggressive gas(HVAC system)
Operating Temp.：0 ... 50℃
Operating Humid.：Tarps：0 ... 95%RH(Non-condensing) / Non-woven：0 ... 85%RH(Non-condensing)
Storage Temp.：-20 ... +60℃

Electrical
Power supply：DC 12 ... 36 V & AC 24 V ±10%
Current consumption：DC：37 mA / AC：70 mA
Starting current：DC：> 200 mA / AC：> 210 mA
Electrical connection：M12(4P or 5P)metal connector with 2 m cable or terminal(cable gland) 

Installation
Installation：Indoor：Wall mount / Duct：Flange mount

Protection
IP rating：GS43：IP54 / GS44：IP64
Electrical protection：■ Polarity protection ■ Over-voltage ■ Short-circuit

Certification
Certification：CE

Material
Housing：PC fire-proof(PC - 110)(UL94V-2)
Filter for duct type：POM
Ventilation-cloth：2000 PPM：Non-woven,5000 / 10000 PPM：Tarps
Weight：GS43：126 g / GS44：155 g

Accessory table