ACU20FD Normally Open Valve Series

The ACU20FD digital mass flow meter consists of a mass flow sensor, a laminar flow splitter, a flow-control regulating valve, and an amplification and control circuit. It features digital signal input and output, short warm-up time, minimal zero drift, and high reliability.

Category:

Gas Flow Meters and Flow Controllers

Product attachment:

ACU20FD-L High-Precision Mass Flow Controller & Meter.pdf

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I. Product Overview

◆ Thermal principle, higher accuracy, faster response, with Ethernet port

◆ Tubular diversion, resistant to clogging

◆Suitable for various low- and high-pressure pipelines

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

◆ Analog input/output can use secondary instruments or flow computers to control and display flow.

ACU20FD High-precision mass flow meter/flow controller The mass flow rate of a gas is measured using the principle of differential-temperature calorimetry based on capillary heat transfer, which is unaffected by temperature and pressure. The flow signal detected by the sensor is amplified and then compared with a set voltage; the resulting error signal is used to drive a control valve, thereby implementing closed-loop regulation to maintain the flow through the channel at the desired setpoint.

II. Product Applications

Glass industry	Solar energy	Atmospheric Monitoring	Industrial Production	Petroleum and Petrochemical
Coal Metallurgy	Gas production and distribution	Environmental protection	Various instrumental analyses

III. Product Specifications

Series	ACU20FD
Model	LC	LM	MC	Miss	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	±0.5% F.S.
Linear	±0.25% F.S
Repeatability	±0.2% F.S
Response time	<0.2s	<0.1s	<0.2s	<0.1s	<0.2s	<0.1s
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
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	0~50℃
Maximum withstand voltage	3 MPa / 10 MPa (specified at the time of order)
Electrical Connection	DB9 port
Display screen	Touchscreen
Leak rate	1 times 10 ^-9 Pa m ³/S
Protection Level	IP40
Valve	Valve left open	/	Valve left open	/	Valve left open	/
Base Material	Stainless steel
Sealing material	Fluororubber, nitrile rubber, EPDM, perfluoroether
Body thread	G3/8 internal thread				G1/2 internal thread
Joint	Compression fittings, ferrules, quick-connects, VCRs, flanges, etc.

IV. Product Dimension Drawing

V. Optional Accompanying Measurement and Control Software (Additional charges apply)

Mass Flow Measurement and Control System V5.0

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