ACU20L Series

The ACU20L is a high-precision series of liquid flow controllers and flow meters. This product line employs a differential-pressure mass‑measurement principle that exhibits no thermal drift and zero response lag, enabling simultaneous display and output of parameters such as instantaneous flow, totalized flow, pressure, and temperature. When control functionality is required, it can be equipped with an electromagnetic proportional control valve and built-in PID regulation.

Category:

Liquid Flow Meters and Flow Controllers

Product attachment:

ACU20L产品手册6.3(1).pdf

ACU20L Liquid Mass Flow Controller.pdf

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I. Product Overview

◆ Differential pressure principle, offering higher accuracy and faster response.

◆Capable of rapidly and accurately measuring the volumetric or mass flow rate of process fluids.

◆ Features uniquely designed vent holes for easy air release.

◆ Instantaneous and cumulative flow rates, as well as temperature, can be displayed simultaneously.

◆ Integrated PID controller for flow regulation

The ACU20L is a high-precision series of liquid flow controllers and flow meters. This product line employs a differential-pressure mass‑measurement principle that exhibits no thermal drift and no response lag, enabling simultaneous display and output of instantaneous flow, cumulative flow, temperature, and other parameters. When control functionality is required, it can be equipped with an electromagnetic proportional control valve and built-in PID regulation.

The ACU20L series liquid flow controllers/flow meters employ an internally compensated laminar‑flow pressure‑drop technology, ensuring that the fluid remains in laminar flow even across a wide flow range.

II. Product Applications

Glass industry	Solar energy	Atmospheric Monitoring	Industrial manufacturing
Coal Metallurgy	Petroleum and Petrochemicals	Environmental protection	Various instrumental analyses

III. Technical Parameters

Series	ACU20L
Model number	LC	LM	MC	MM	BC	BM	HC	HM
Range of measurement	0–(2, 5, 10…1000) SCCM		0-（1,2,3...5)SLM		0-（5,6,10...20)SLM		0-(40,45...60)SLM
Accuracy	±1.0%F.S
Repeatability	±2%F.S
Linear	±0.5%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	50:1	100:1
Typical response time	Controller: <0.2 s Flow meter: <0.1 s
Analog quantity	0–5 V, 4–20 mA, 1–5 V
Digital quantity	RS232/485, MODBUS protocol
Power supply	24 VDC, ±15 VDC
Operating temperature	10~50℃
Working pressure drop	<0.01 MPa
Work stress	1MPa
Electrical connection	DB9 port, RJ11
Protection rating	IP40
Leak rate	1×10 ^-9Pa m ³/S
Valve	Valve normally closed	/	Valve normally closed	/	Valve normally closed	/	Valve normally closed	/
Base material	Stainless steel
Sealing material	Fluororubber, chloroprene rubber, nitrile rubber, perfluoroether, metal seals, and others
Body thread	G3/8 internal thread				G1/2 internal thread
Joint	Ferrules, ferrule fittings, quick-connect couplings, VCR fittings, flanges, etc.