S-401 COMPRESSED AIR FLOW SENSOR (S-401)

Affordable wide-range compressed air thermal mass flowmeter requiring no pressure or temperature compensation.

The S401 compressed air flow meter is designed to be easy to use, affordable and offering a wide measurement range. Based on its thermal mass measurement principle, it does not require additional pressure or temperature compensation.

Key Specifications

Factory Configurable

Parameter	Specification
Pressure range	Up to 50 bar
Accuracy	±1.5% Rdg
Output	4-20mA, Pulse / Totalizer, RS485 Modbus
Supply voltage	10–28 VDC (2-wire loop)
Wetted material	AISI 316L SS
Operating temperature	-30°C to +140°C
Protection	IP65 Enclosure
Process connection	G1/2" Hot-Tap Insertion
Electrical connection	Hirschmann DIN 43650-A / M12 4-Pin / Flying lead

Applications

✓Enterprise Compressed Air Efficiency & Leak Audits

✓Compressor Station Capacity & FAD Benchmarking

✓Nitrogen, Argon, and CO2 Consumption Sub-Metering

✓Automotive Paint Spray Booth Air Flow Monitoring

✓Cement & Textile Plant Energy Management (ISO 50001)

Downloads & Documentation

Datasheet (PDF)

Dimensional Drawing

Upon Request

Installation Manual

Included with Dispatch

Calibration Certificate

100% Tested

QAP / Inspection Documentation

Provided where applicable for OEM supply

OEM ADAPTATION & CUSTOMIZATION

Need a different pressure range, output or connection?

Talk to an ACT Application Engineer. We adapt pressure spans, wetted metallurgy (316L, Hastelloy), process threads (BSP, NPT, Tri-Clamp), and cable lengths to your exact machinery.

+91 8879490008