ACU30FC Series

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

Category:

Gas Flow Meters and Flow Controllers

Product attachment:

ACU30FC Differential Pressure MFC.pdf

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I. Product Overview

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

◆ Compact design for a more intuitive large-screen experience.

◆ Supports multi-parameter measurement for convenient data analysis; employs a DSP-based main controller to further enhance accuracy and reliability.

◆ Switch freely among nearly 100 gases—no need to return the instrument to the factory for calibration.

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

The ACU30FC series flow meters operate on the differential-pressure principle, calculating flow rate based on the pressure difference generated as the fluid passes through a throttling element. The instrument features built-in PID control functionality and, when paired with an electromagnetic proportional control valve, enables precise flow regulation. The ACU30FC can measure multiple parameters, including gas mass flow, volumetric flow, pressure, and temperature, and transmits these measurements via communication interfaces such as RS485 and RS232 to a touch screen or other external devices and control systems for data monitoring and analysis.

II. Product Applications

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

III. Product Specifications

Series	ACU30FC
Model	SC	SM	LC	LM	MC	Miss
Measurement range	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 to 1	50:1	100 to 1	50:1	100 to 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 Level	IP40
Leak rate	1×10⁻⁹ Pa·m³/s
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
Joint	Compression fittings, ferrules, quick-connects, VCRs, flanges, etc.