ACU10FD

The ACU10FD digital mass flow controller consists of a mass flow sensor, laminar flow separator, flow controller regulating valve, and amplification control circuit. It features digital signal input and output, offering advantages such as short preheating time, minimal zero drift, and high reliability.

Category:

Gas Flow Meters and Flow Controllers

Product attachment:

ACU10FD Digital Type.pdf

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I. Product Overview

◆Thermal principle, fast response, high accuracy

◆ Tubular shunt, resistant to clogging

◆ Suitable for various low-pressure 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 rates via secondary instruments or flow computers.

The ACU10FD mass flow controller consists of components such as a mass flow sensor, laminar flow separator, flow control regulating valve, and an amplification control circuit. It operates based on the thermal conduction distribution effect, where the heat transferred by the flowing fluid alters the temperature distribution along the walls of the measurement capillary tube.

The ACU10FD mass flow controller uses the capillary heat transfer method—measuring the temperature difference before and after heat transfer—to accurately determine the mass flow rate of gases, independent of temperature and pressure variations. The flow signal detected by the sensor is first amplified, then compared with a preset voltage. The resulting difference is used to precisely adjust the control valve, enabling closed-loop regulation of the flow through the channel until it matches the set flow rate.

II. Product Applications

Glass industry	Solar energy	Atmospheric Monitoring	Industrial production	Petroleum and Petrochemicals
Coal Metallurgy	Gas Generation and Gas Distribution	Environmental protection	Various instrumental analyses

3. Product Specifications

Series	ACU10FD
Model	LC	LM	MC	MM	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% of F.S.
Linear	±0.5% of F.S.
Repeatability accuracy	±0.2% of Full Scale
Work differential pressure	0.1–0.5 MPa (specified upon order)
Measurement range ratio	50:1	100:1	50:1	100:1	50:1	100:1
Response time	<0.8s
Analog quantity	0–5V, 4–20mA
Digital quantity	RS232/485, MODBUS Protocol
Power supply	±15VDC, 24VDC
Operating temperature	0–50°C
Work pressure drop	<0.01 MPa
Maximum withstand voltage	3 MPa / 10 MPa (specified upon 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
Surface Thread	G3/8 internal thread				G1/2 internal thread
Connector	Crimping sleeves, pagodas, quick-connect fittings, VCR connectors, flanges, and more