V&A Indoor Air Quality Monitor and Controller-Wallmount VAT920-CO2 Environmental Products?0 pages
V&A®| Indoor Air Quality Monitor
tiHM'HHfii and Controller-Wallmount
INSTRUMENT
► VAT920-CO2/VAT920-CO2-VOC
Key Features
Operating:Touch screen
Display: Color TFT LCD , size: 50X65 mm
Measuring:Temperature,Humidity,CC>2 , VOC
Accuracy:Temperature:+/-0.5°C , Humidity:+/-3%RH , COr.+l-
(50ppm+3%)
Sensor: Humidity: Capacitive, CO2: Double windows NDIR
Correspod time:CC>2 :,(T90) <60s;Temperature and humidity:
1/e(63%)change ,Slow flow rates <10s
VOC:20m2 indoor,for lOppm ethanokl min,for flue gas<5min
Alarm:Sound and light alarm
USB interface
Power consumption: 5W maximum average 3.5W
Warm-up time :2 minutes, and for the first time 2 hours
Housing: IP40
Size:135*91 *36mm
Specification:
CO2
%RH
VOC
Model | VAT920-CO2 | VAT920-CO2-VOC |
Measuring range | Tern peratu re: -201-501 Humidity: 0-100% CO2:300-3000ppm | Temperature :-20t--50t Humidity: 0-100% CO2:300-3000ppm VOC:0-30ppm (Analogue display) |
Digital signal output | Standard: RS485 (Optional:LAN , Please remark) | |
Analog output | Standard: 4-20mA( Optional:0-10V,0-5V,Please remark) | |
Input power | Standard: 24VDC/AC | |
Threshold set | Custom threshold | |
Switch | 3 relays | |
Communication protocol | Modbus |
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V&A
• Color touch screen
• Dual window NDIR sensor
• Analog output 4~20mA
• RS485 communication
Wiring diagram
Applications:
Obtain LEED credits
Meet ASHRAE 62.standard
Green houses/winery,
breweries air quality,and other
Industry applications
Relay
Switch3
Relay
Switch2
Relay
Switch 1
Power port
Wo
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BO
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RS485-A
RS485-B
Analog Export 1
Analog Export 2
Analog Export 3
Earth port
Network port
More information online at www.mastech.com.cn
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