VT2000 HVAC

CO2 Measuring Method : NDIR Sensor & Temperature / Humidity TRANSMITTER

CO₂Measuring Method : NDIR Sensor

Temperature / Humidity sensing element : CMOSens sensor

Retransmission Output : 4~20mA or 0~10V

Communication Output : RS485 MODBUS RTU (option)

Configured using a PC with free software and interface
cable (option)

Process value offset adjustable (available on CO₂ with Temperature and Humidity display type / option)

Digital keypad to adjust output calibration

Backlight LCD Indication to show CO₂ concentration

Specification
CO₂ Measuring method	NDIR Sensor
Temperature / Humidity Sensing element	CMOSens sensor
Load Resistance	4~20mA Current output: max. 500Ω
Load Resistance	0~10V Voltage output: min. 600Ω
A / D Resolution	15 bits
Output Response Time	<200 ms
RS485	RS485 MODBUS RTU : N81、N82、O81、E81 Format
Baud Rate	2.4K、4.8K、9.6K、19.2K、38.4K、57.6K、115.2K
RS485 Address	1~255
Display Type (specify when ordering)	CO₂ with Temperature and Humidity / CO₂
CO2 Sampling Time	1 second
Temperature / Humidity Sampling Time	1~10 seconds available
CO₂ Measuring Range	0~2000ppm or 0~5000ppm (RS485 communication required for 0~10000ppm)
Operating Temperature and Condition	Temperature : -10~50°C
Operating Temperature and Condition	Humidity : 0~100% RH (non-condensing)
CO₂ Measuring Accuracy	±70ppm
Temperature / Humidity Measuring Accuracy	±3%RH (10~90%RH) (at 25°C)，±0.4°C (at 25°C)
Temperature / Humidity Measuring Accuracy	(power supply 24VDC, operating temperature at 25°C)
Backlight LCD Ind.ication	Green : 0~600ppm
	Blue : 601~1000ppm
	Orange : >1001ppm
	(other LCD colors available on request)
Power Supply	DC 24V
Current consumption	DC 50mA
Housing	ABS
Dimensions	Length 135mm x Width 85mm x Height 40mm