ACU10FD Series

The ACU10FD digital mass flow controller consists of a mass flow sensor, laminar flow splitter, flow-control regulating valve, and amplification control circuit. It features digital signal input and output, short warm-up time, minimal zero drift, and high reliability.

Category:

Gas Flow Meters and Flow Controllers

Product attachment:

ACU10FD-气体质量流量控制器(1).pdf

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I. Product Overview

◆Thermal principle, fast response, high accuracy

◆ Tubular diversion, resistant to clogging

◆Suitable for various low- and high-pressure pipelines

◆ Short warm-up time, minimal zero drift, and high reliability

◆ Digital input/output can be used to control and display flow rate via secondary instruments or flow computers.

The ACU10FD mass flow controller consists of a mass flow sensor, a laminar flow element, a flow-control regulating valve, and an amplification and control circuit. It is designed based on the thermal conduction distribution effect, in which heat transfer by the flowing fluid alters the temperature distribution along the wall of the measuring capillary.

The ACU10FD mass flow controller measures gas mass flow using the differential-temperature calorimetric method based on heat transfer through a capillary tube, ensuring that the measurement is unaffected by temperature and pressure variations. The flow signal detected by the sensor is amplified and then compared with a setpoint voltage; the resulting error signal is used to drive the control valve, thereby implementing closed-loop regulation to maintain the flow rate in the channel at the desired setpoint.

II. Product Applications

Glass industry	Solar energy	Atmospheric Monitoring	Industrial Production	Petroleum and Petrochemical
Coal Metallurgy	Gas production and distribution	Environmental protection	Various instrumental analyses

III. Product Specifications

Series	ACU10FD
Model	LC	LM	MC	Miss	BC	BM
Measurement range	0–(2, 5, 10…1000) SCCM, 0–(1, 5, 10…30) SLM		0-(30, 40, 50...300) SLM		0-(300, 400, 500...3000) SLM
Accuracy	±1.0% F.S
Linear	±0.5% F.S.
Repeatability	±0.2% F.S
Working differential pressure	0.1–0.5 MPa (to be specified at the time of order)
Range ratio	50:1	100 to 1	50:1	100 to 1	50:1	100 to 1
Response time	<0.8s
Analog quantity	0–5 V, 4–20 mA
Digital quantity	RS232/485, MODBUS protocol
Power supply	±15 VDC, 24 VDC
Operating temperature	0–50°C
Work pressure drop	<0.01 MPa
Maximum withstand voltage	3 MPa / 10 MPa (specified at the time of order)
Electrical Connection	DB15 port
Leak rate	1×10⁻⁹ Pa·m³/s
Temperature coefficient	±0.025% F.S./°C
Valve	Valve remains closed	/	Valve remains closed	/	Valve remains closed	/
Base Material	Stainless steel
Sealing material	Fluororubber, nitrile rubber, EPDM, perfluoroether
Body thread	G3/8 internal thread				G1/2 internal thread
Joint	Compression fittings, ferrules, quick-connects, VCRs, flanges, etc.