ACU10FD Series

The ACU10FD digital mass flow controller comprises a mass flow sensor, a laminar flow element, a flow‑control regulating valve, and an amplification control circuit. It features digital signal input and output, short warm‑up time, low zero drift, and high reliability.

Category:

Gas Flow Meters and Flow Controllers

Product attachment:

ACU10FD-气体质量流量控制器(2).pdf

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I. Product Overview

◆ Thermal principle, fast response, high accuracy

◆ Tubular shunt, less prone to blockage

◆ Suitable for various low-pressure and high-pressure pipelines

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

◆ Digital inputs/outputs can use secondary instruments or flow computers to control and display flow rates.

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 operates on the principle of thermal conduction—where heat transfer by the flowing fluid alters the temperature distribution along the wall of a measurement capillary.

The ACU10FD mass flow controller measures gas mass flow using the capillary‑based differential‑temperature calorimetric principle, ensuring independence from temperature and pressure variations. It amplifies the flow signal detected by the sensor, compares it with a setpoint voltage, and uses the resulting error to drive a control valve, thereby maintaining closed‑loop regulation of the flow rate through the channel to match the desired value.

II. Product Applications

Glass industry	Solar energy	Atmospheric monitoring	Industrial manufacturing	Petroleum and Petrochemicals
Coal Metallurgy	Gas production and gas distribution	Environmental protection	Various instrumental analyses

III. Product Specifications

Series	ACU10FD
Model number	LC	LM	MC	MM	British Columbia	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	100:1	50:1	100:1	50:1	100:1
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
Working pressure drop	<0.01 MPa
Maximum withstand voltage	3 MPa / 10 MPa (to be specified at the time of order)
Electrical connection	DB15 port
Leak rate	1×10-9 Pa·m³/s
Temperature coefficient	±0.025%F.S/℃
Valve	Valve normally closed	/	Valve normally closed	/	Valve normally closed	/
Base material	Stainless steel
Sealing material	Fluororubber, nitrile rubber, EPDM, perfluoroether
Body thread	G3/8 internal thread				G1/2 internal thread
Joint	Ferrules, ferrule fittings, quick-connect couplings, VCR fittings, flanges, and more