eyc-tech Small Value Precise Measurement: Equipment Upgraded, Technology Enhanced

In modern industry and scientific research, precisely measuring micro air velocity and airflow is critical for ensuring the performance of precision systems and the reliability of research data. With technological advancements, eyc-tech offers exclusive patented wind tunnel devices and air volume calibration systems (sonic nozzles), and has integrated Laser Doppler Anemometry (LDA) for precise calibration of air velocity, airflow, and differential pressure transmitters, providing you with exceptional solutions for low air velocity and airflow measurement.

eyc-tech’s exclusive patented wind tunnel devices undergo rigorous testing and calibration procedures according to IEC61298 and ISO17025 standards. The system was run 3-cycle or 5-cycle curve inspection by measuring circles quantities and positions of testing points to achieve calculation of the targets and calibration of the linear curve which help air velocity transmitter to maintain high precision quality. By combining the wind tunnel device with LDA, we could reduce the measurable minimum value to 0.1 m/s. This precision in low air velocity measurement is crucial for environmental monitoring, manufacturing process control, ventilation system optimization, and equipment safety. eyc-tech’s air velocity transmitters are calibrated using advanced wind tunnel devices and LDA during their design and manufacturing processes.

Air Velocity Series Transmitters

FTE120 Air Flow Transmitter

Measuring range : 0 ... 30 m/s
Min. measuring range: 0.2 m/s, 0.1 m/s(optional)
Output : 4 ... 20 mA / 0 ... 10 V / RS-485
Accuracy : ±2% F.S.
IP rating : IP65

FTS34/35 Air Velocity Transmitter

Measuring range : 0 ... 40 m/s
Min. measuring range: 0.2 m/s

Output : 4 ... 20 mA / 0 ... 10 V / RS-485
Accuracy : ±2% F.S.
IP rating : IP54

Differential pressure measurement is crucial for the precise calculation of air velocity and airflow. By combining wind tunnel devices with Laser Doppler Anemometry (LDA), we can not only measure air velocity precisely but also convert low air velocity into micro differential pressures using Bernoulli's principle from fluid dynamics. This verifies the measurement capabilities of eyc-tech's hot-wire differential pressure measurement technology, ensuring measurement reliability down to 1 Pa. The application of advanced micro differential pressure measurement technology allows various industries to easily monitor process and system conditions, mitigating risks associated with small value fluctuations and achieving higher efficiency and safety.

PHM330 Differential  Pressure  Transmitter

Measuring element : Hot-wire type diff. pressure sensor, flow-through
Measuring range : ±50 ... ±1500 pa
Output : 4 ... 20 mA / 0 ... 10 V / RS-485
Accuracy : ±1.5% F.S. ±3% M.V..
IP rating :IP65

PMM330 Differential  Pressure  Transmitter (Indoor)

Measuring element : Hot-wire type diff. pressure sensor, flow-through
Measuring range : ±50 ... ±1500 pa
Output : 4 ... 20 mA / 0 ... 10 V / RS-485
Accuracy : ±1.5% F.S. ±3% M.V.
IP rating : IP65

In airflow measurement, eyc-tech employs sonic nozzles as standard equipment for airflow measurement. Sonic nozzles maintain a critical state, ensuring that flow measurement is unaffected by downstream conditions, thereby achieving high precision in flow measurement. Whether in industrial processes or laboratory applications, sonic nozzles provide extremely precise micro airflow measurements with a precision of up to 1 m³/h.

Airflow Series Transmitters

FDM06-I

Venturi  Thermal  Mass  Flow  Meter

Measuring range:
DN15：65 Nm³/h
DN25：160 Nm³/h
DN40：350 Nm³/h
DN50：500 Nm³/h
Turndown ratio : 75：1
Output: 4 ... 20 mA / 0 ... 10 V / Relay / RS-485
IP Rating: IP65

FTM06D-I

Inline Type Air Flow Transmitter

Measuring range:
DN15：0.1 ... 76 m³/h
DN25：0.4 ... 212 m³/h
DN40：0.9 ... 543 m³/h
DN50：1.5 ... 848 m³/h

Output: 4 ... 20 mA / 0 ... 10 V / RS-485 / Frequency / Pulse
IP Rating: IP65 (IP67 option)

FTE120-I

Inline Type Air Flow Transmitter

Measuring range:
DN10 : 0 ... 150 l/min
DN15 : 0 ... 500 l/min
DN20 : 0 ... 1000 l/min
DN25 : 0 ... 1500 l/min
Min. measuring range: 5 l/min
Output: 4 ... 20 mA / 0 ... 10 V / RS-485 / Frequency / Pulse
IP Rating: IP65(Body) / IP20(Probe)

These technological and equipment upgrades represent our persistent pursuit of precision measurement. We are committed to providing the most advanced measurement solutions to meet the industry's demand for high-precision measurements, supporting technological upgrades and innovation across various sectors.