Features
● Based on the thermal mass flow sensing principle, featuring bi-directional measurement.
● Highly sensitive to low airflow, using dual temperature sensors for detection; designed for laminar flow and differential pressure (positive/negative) control.
● 2″ LCD color screen with easy configuration via buttons.
● Displays air velocity and airflow, integrated with UI settings.
● Accuracy : ±1.0%
● Multiple Outputs: Analog output / Relay / RS-485
● Highly sensitive to low airflow, using dual temperature sensors for detection; designed for laminar flow and differential pressure (positive/negative) control.
● 2″ LCD color screen with easy configuration via buttons.
● Displays air velocity and airflow, integrated with UI settings.
● Accuracy : ±1.0%
● Multiple Outputs: Analog output / Relay / RS-485
Applications
Overflow Flow Monitoring ( 0.20 m/s) / Laminar Flow Monitoring ( 0.20 ... 0.50 m/s) / Semiconductor / Pharmaceutical / Food and Beverage / Laminar Flow Control / Overflow Control / Positive and Negative Pressure Control / Energy / Environmental Protection / Factory Automation / Pharmaceutical
*Recommended range : 0.00 ... 2.00 m/s for laminar and overflow monitoring.
*Recommended range : 0.00 ... 2.00 m/s for laminar and overflow monitoring.
Applications
Ultra-low flow detection with reverse flow alert
Specification
Input |
|
Sensor type |
Hot-wire sensor |
Turndown ratio |
100 : 1 |
Measuring range* |
±(0.00 ... 1.00 m/s) |
|
*Deadband : 0... -0.5 m/s *Recommended range : 0.00 ... 2.00 m/s for laminar and overflow monitoring. *Default setting: Forward direction |
|
Output |
|
Output signal |
4 ... 20 mA / 0 ... 10 V / Relay / RS-485 |
Signal connection |
3-wire |
Warm-up time |
60 sec |
Response time |
t90≦5 sec |
Load resistance |
Current output : ≦500 Ω |
Communication |
|
Communication methods & protocol |
RS-485 Modbus RTU |
RS-485 baud rate |
9600、19200、38400、57600、115200 bps |
Accuracy |
|
Accuracy (Including hysteresis, non-linearity and repeatability) |
0.05 ... 1.00 m/s：±(1% of mv+0.05 m/s) |
Uncertainty of factory calibration |
±1% |
Installation angle effect |
<3 % mv for α <10° |
Temp. influence |
0.2% / °C |
|
*The measurement range is defined at the standard condition(1013 mbar, 20°C).
*mv = measured value
|
|
Environmental |
|
Medium |
Air |
Operating Temp. & Humid. |
0 ... 50°C / 20 ... 90%RH(Non-condensing) |
Storage Temp. |
-25 ... +60°C |
Operating pressure |
2 bar : Duct type / Remote type |
Electrical |
|
Power supply |
DC 24 V ±10% |
Current consumption |
24 V : 110 mA |
Relay capacity |
Max current : 6 A |
Electrical connection |
M12 8P connector |
Installation |
|
Installation |
PT 1/4" movable thread |
Display |
|
Display readout |
-99.99 ... +99.99 (Air velocity) |
Decimal point |
Button |
Sampling time |
1 cycle/sec |
Flow unit |
m/s, ft/s, L/min, m³/min, m³/h |
Response time adjustment range |
0.5 ... 300 sec |
Certification |
|
Certification |
CE |
Protection |
|
IP rating |
IP65(Housing) |
Electrical protection |
■ Reverse polarity ■ Over-voltage |
Material |
|
Housing |
Aluminum alloy / Plastic |
Probe |
SUS316 |
Probe head |
SUS304 |
Weight |
Duct type : 340 g |
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Note : Design and specifications are subject to change without notice.
Note : Please make sure the product and the device which connect with RS-485 are on common ground, avoid damaged product.