Duct/Remote Mount Air Velocity Transmitter

Applied to detect, adjust, control air velocity in ventilation measurement and control system to satisfy the relevant ventilatio

Features

Based on thermal measurement principal, using innovation, advanced, sensitive hot film sensor, strong pollution tolerance, low airflow angle dependence, easy to install and maintain

Sensor without moving mechanical components to provide accurate, reliable, sensitive and long-term detect, wide working temperature range and real-time temperature compensation

Digital technology applied, ensure the output signal linear and accuracy

Output with over voltage and reverse polarity protection, high reliability and interference capability

Multiple output optional, optional relay output for alarm or control

Field jumpers selection air velocity range 0~5/10/15/20m/s

MMI operation panel can configure various functions of parameter setting, modification and calibration

Optional MMI operation panel: Including LCD, integrated with function keys, can be ordered and installed in field separately. See details on MMI product.

Specifications

Air velocity	Thermal hot film sensor
range	0~5/10/15/20m/s or other (0~25m/s)
Accuracy	<±(0.2m/s+3% measuring value @ 20°C,45 % RH,1013hPa
Response sensitivity	0.001m/s
Response time	Typical 2s
Dependence of angle Of inflow:	< 3 % measuring value @ | Δα | < 10°
Uncertainty of factory calibration	±(1% measuring value,min. 0.1m/s)
Sensor temperature range	-20~150°C,Temperature sensitivity  <0.1%/K
Output	4~20mA,0~10VDC,RS485/Modbus
Temperature	High accuracy thermistor
Range	0~50°C,0~100°C
Accuracy	<±0.5°C@25°C(≥1m/s slow air )
Response time	10s
Output	4~20mA,0~10VDC,RS485/Modbus
General
Relay output	1×SPDT,1A/30VDC,0.5A/125VAC
Analog output load	≤600Ω(4~20mA),≥2KΩ(0~10VDC)
Power	18~30VAC/DC
Display(MMI)	LCD Display,display accuracy 1m/s
Working environment Temperature	-20~85,0~95%RH(Non-condensing)
Housing material	fireproof  ABS
Protection	IP65,NEMA4X

Duct/Remote Mount Air Velocity Transmitter