ACU30FC Series

The ACU30FC is a high-precision, differential-pressure‑based flow controller/flowmeter. With a compact footprint yet a large display, it offers enhanced convenience and user-friendliness. This series employs a differential-pressure mass‑measurement principle that exhibits no thermal drift and zero response lag, enabling simultaneous display and output of instantaneous flow, cumulative flow, pressure, temperature, and other parameters.

Range: 0-300SLM

Datasheet (PDF) 675 KB

Category: Gas Flow

Overview

Applications

Specifications

Dimensions

Software

◆ No “specific heat capacity” error; high-precision data with real-time feedback.

◆ Compact design, with a large screen for a more intuitive experience.

◆ Supports multi-parameter measurement, facilitating data analysis. Employs a DSP-based controller to further enhance accuracy and reliability.

◆ Nearly a hundred gases can be switched freely, with no need to return the instrument to the factory for calibration.

◆ Supports USB Type-C and Bluetooth, offering flexible and versatile device connectivity.

The ACU30FC series flow meters operate on the differential pressure principle, calculating flow rate by measuring the pressure drop across a throttling element. The device features built-in PID control and, when paired with an electromagnetic proportional control valve, enables precise flow regulation. The ACU30FC can simultaneously measure multiple parameters, including gas mass flow, volumetric flow, pressure, and temperature, and transmits these data via RS‑485 or RS‑232 interfaces to a touch screen, external devices, or a control system for real-time monitoring and analysis.

Vacuum	Coating	Solar energy	Various instrumental analyses
Petroleum and Petrochemicals	Gas production and gas distribution	Environmental protection	Semiconductor

Series	ACU30FC
Model number	SC	SM	LC	LM	MC	MM
Range of measurement	0–(2, 5, 10…1000) SCCM, 0–(1, 5, 10…30) SLM				0-（30,40,50...300)SLM
Accuracy	±0.5%F.S
Repeatability	±0.2%F.S
Linear	±0.25%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
Typical response time	50 milliseconds (adjustable)
Analog quantity	0–5 V, 4–20 mA
Digital quantity	RS232/485, MODBUS protocol
Power supply	24VDC
Communication protocol	Modbus, DeviceNet, Profinet, EtherCAT, Profibus, and others
Operating temperature	0~60℃
Maximum working pressure	1MPa
Electrical connection	DB9 port
Installation location	Horizontal installation
Protection rating	IP40
Leak rate	1×10-9 Pa·m³/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
Joint	Ferrules, ferrule fittings, quick-connect couplings, VCR fittings, flanges, etc.