THG03 CO2 Temp. & Humidity Transmitter(Indoor)
Model :
THG03
Input：CO2 NDIR sensor / Temp. & humidity MEMS sensor
Output：0 ... 10 V / 4 ... 20 mA
Accuracy(at +25°C；DC 24 V；101.3 kPa)：
CO2±40 PPM±3% of reading / Temperature±0.5°C / Humidity±5%RH(30 ... 80% RH)
Measuring range：0 ... 2000 PPM / 0 ... 50℃ / 0 ... 100%RH(Non-condensing)
Output：0 ... 10 V / 4 ... 20 mA
Accuracy(at +25°C；DC 24 V；101.3 kPa)：
CO2±40 PPM±3% of reading / Temperature±0.5°C / Humidity±5%RH(30 ... 80% RH)
Measuring range：0 ... 2000 PPM / 0 ... 50℃ / 0 ... 100%RH(Non-condensing)
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Features● Integrated 3 sensors in 1 device with LCD display
● Measuring temperature, humidity and carbon dioxide
● 2 analog outputs and Modbus RS-485
● Optional analog output + RS-485
● Quick easy installation and maintenance due to well designed
● Cost-efficient and reliable
● Data can be logged and transferred to PC via RS-485 function link free software
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ApplicationsMonitoring the air quality in indoor environments / HVAC / Air conditioning / Museums / Greenhouse / Testing environments work places / Supermarkets / Data centers/ Production warehouses / Indoor public / Places to regulate the ventilation system to save energy
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SpecificationDisplay
Display：LCD module without backlight
Display readout：Double line character(Up：CO2；Down：T & H take turns)
Digit：CO2：4 digits；T & H：3 digits & 1 decimal
Digit height：17.84 mm
Input
CO2：NDIR sensor
Temp. & humidity：MEMS sensor
Measuring range
CO2：0 ... 2000 PPM
Temperature：0 ... 50℃
Humidity：0 ... 100%RH(Non-condensing)
Output
Analog output：0 ... 10 V / 4 ... 20 mA
Modbus：RS-485
Signal connection：3-wire
Load resistance：Voltage output：≧100 KΩ / Current output：＜250 Ω
Warm-up time：＜2 min；Stable time 20 min
Temp. influence：T & H：Max. -0.15%RH/℃(0 ... 80°C)
Response time：CO2：t90＜2 min / T & H：t63(15 ... 45°C / 33 ... 75%RH)≦10 sec
Sampling time：CO2：About 6 sec；T & H：About 3 sec
Data logger：Via RS-485 by using eyc free software
Accuracy(at +25°C；DC 24 V；101.3 kPa)
CO2：±40 PPM±3% of reading
Temperature：±0.5°C
Humidity：±5%RH(30 ... 80% RH)
Environment
Medium：Air
Operating Temp. / Humid.：T&H：0 ... 50°C / 0 ... 100%RH(Non-condensing)
Operating Temp. / Humid.：CO2：0 ... 50°C / 0 ... 85%RH
Storage temperature：-20 ... + 60℃
Electrical
Power supply：DC 24 V±10% & AC 24 V±10%
Current consumption：DC：150 mA / AC：120 mA
Starting current：DC 24 V：250 mA / AC 24 V：230 mA
Electrical connection：Analog & communication：4P Connector
Installation
Installation：Indoor and Wall mount
Protection
IP rating：IP20
Electrical protection：■ Polarity protection ■ Short-circuit
Certification
Certification：CE
Material
Housing material：PC(PC-110)(UL94V-2)
Weight：100 g
Note : Design and specifications are subject to change without notice.
Note : If the product has RS-485 function, to avoid damaging product, please make sure the product and the device which connect with RS-485 are on common ground.