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CO2 Indoor Air Quality Monitor VAT810/VAT820/VAT840/VAT930

This device is the reaction of indoor air quality by detecting indoor carbon dioxide concentrations, and by which control the room ventilation to improve indoor air quality. This product can be effectively improved indoor air quality by controlling the indoor fresh air, and reduce the heat loss caused due to excessive fresh air, play the role of energy-saving air-conditioning system. The concentration of carbon dioxide can be set by the customer, and default 900ppm.

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Description

Product Features：

Used for monitoring indoor air quality, suitable for bedroom, Office, conference rooms, theaters, other public indoor places;
Measure indoor carbon dioxide concentration, temperature, humidity, with digital output RS485 communication(MODBUS);
Used in multi-monitor system in building automation.

Product Parameters：

	VAT810	VAT820	VAT840	VAT930
Type	Desktop	Wallmount	Wall Embedded	Duct mount
Measuring range	Temperature: -20~50℃ ±0.5℃	Temperature: -20~50℃ ±0.5℃	Temperature: -20~50℃ ±0.5℃	Temperature: -20~50℃ ±0.5℃
	Humidity: 0~100% ±3%RH	Humidity: 0~100% ±3%RH	Humidity: 0~100% ±3%RH	Humidity: 0~100% ±3%RH
	CO2: 300~3000ppm ±(50ppm+3%)	CO2: 300~3000ppm ±(50ppm+3%)	CO2: 300~3000ppm ±(50ppm+5%)	CO2: 300~3000ppm ±(50ppm+3%)
Alarm	Sound and light alarm	Sound and light alarm		Sound and light alarm
Warm-up time	2 minutes; 2 hours(for first time)	2 minutes; 2 hours(for first time)		2 minutes; 2 hours(for first time)
Sensor	Capacitive (Humidity); NDIR (CO₂)	Capacitive (Humidity); NDIR (CO₂)	Capacitive (Humidity); NDIR (CO₂)	Capacitive (Humidity); NDIR (CO₂)
Input power	5V DC	24DC/AC	24DC/AC	24DC/AC
Features
Display	SEG LCD	Color TFTLCD	SEG LCD	Dot matrix LCD
USB interface	√	√	N/A	√
Operating	Touch Buttons	Touch Screen	Touch Buttons	Touch Keys
Power consumption	1.5W	5W(Max.) / 3.5W(Average)	5W(Max.) / 3.5W(Average)	5W(Max.) / 3.5W(Average)
Housing	IP40	IP40	IP40	IP65
Size	125 x 85 x 30 mm	135 x 91 x 36 mm	117 x 90 x 60 mm	146 x 117 x 70 mm

Application and After-Sales Service：

The CO2 Indoor air quality monitor can measure temperature, humidity and CO2 with sould and light alarm and USB interface(except VAT840). The warm-up time is usually 2 minutes, but for first time at 2 hours. This device is suitable for bedroom, office, conference rooms, theaters and other public indoor places.

ACCESSORIES
operating manual, screws.
General Maintenance
Longtime drift fix：Device continue work 3weeks then it can be auto adjust the reading.
Auto calibrate： Device can be auto calibrate by manual instruction.
Keep press the SET key, then press 2 time the + key, then release the SET key. Device will into auto calibrate mode.
Press again SET key, then will confirm and into calibrate process.
Then device will start the fresh air fan signal to 30min, after then will calibrate the CO2 to 400ppm.(device can not be respond now)
When finish process, device auto exit auto calibrate mode.
Manual calibrate： Device can be manual calibration.
Keep press the SET key, then press 3 time the + key, then release the SET key. Device will into manual calibrate mode。
Press + or – key to adjust the display value to present value.
Then press SET key again, confirm calibration and exit calibrate mode.
Low limit threshold setting： Device can be set CO2 low limit threshold.
Keep press the SET key, then press 2 time the – key, then release the SET key. Device will into low limit threshold setting mode.
+：Increase 100ppm every press when threshold setting.
-：Reduce 100ppm every press when threshold setting.
Press SET key again, confirm and exit setting mode.

CO2 Indoor Air Quality Monitor VAT810/VAT820/VAT840/VAT930

Product Features：

Product Parameters：

Application and After-Sales Service：

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