Air Flow Meters
BATTERY OPERATED AIR/GAS FLOW GAUGE
AFG-20
AFG-20 Digital Air Flow Gauge is a battery-operated, differential pressure–based air/gas flow measurement instrument designed for reliable monitoring of compressed air systems. It offers fast, accurate, and trouble-free operation with an integral digital display and display ON/OFF (auto shut-off) feature for extended battery life. Compact and cost-effective, AFG-20 is ideal for industrial compressed air flow measurement in line sizes from 15 NB to 50 NB (Higher line sizes on request ). Its robust SS enclosure, zero-tare facility, and easy installation make it a dependable solution for continuous airflow monitoring in process and utility applications.
Configure the transmitter and electronics based on application, environment, and compliance requirements.
| Line Size | Line Size: 15NB to 50NB |
| Accuracy | ± 1% of F. S. |
| MOC of Plate | AISI 316, AISI 304, Hastelloy C, Other on request |
| MOC of Body | S S-304 / S S-316 |
| MOC of Gasket | PTFE & Other on request |
| Operating Temperature Range | 0-1200 C (Higher temp on request) |
| Operating Pressure Range | 2 0-25 kg/cm (Higher pressure on request) |
| Burst Pressure | 2 times max. Pressure range |
| Over Range Protection | 1.5 times of Max. operating pressure |
| Repeatability | +/- 0.5% of F.S. |
| MOC Electronics Enclosure | S S-304, SS -316 |
| Electronic Protection Class | Weatherproof IP-65 |
| Sensor Type | Piezo Resistive |
| Process Connection | 1) Threaded BSP (F) |
| 2) Flanged (STD ASA 150 B 16.5) | |
| 3) Socket Weld | |
| Inbuilt Display | 8-Digit, Dot Matrix LCD |
| Process Temperature | -40 to 120 °C max |
| Display Lock | Display can be turned ON by pressing the ‘ON’ Key on the front fascia |
| Display ON duration programmable (1 min, 2 min, 5 min & continuous ON) | |
| Power Supply | 3.6 V, Battery Operated |
| Battery Backup Time | 2000 Hrs |
| Response Time | < 200 mSec |
| Temperature Coefficient | ± 0.01% per °C |
| Enclosure Material | SS / Die-cast Aluminium IP-65 / Flameproof |
| Mounting | Direct Line mount |
| Operating Conditions | Temperature: -20 to 70 °C / Humidity: 5 to 95% non-condensing at 25 °C |
Download the complete product catalogue for detailed specifications, dimensions, certifications, and application guidance.
Electronet instruments are widely deployed across multiple industries and utilities for reliable monitoring and control of critical process parameters.
| Industry | Key Applications (AFG-20) |
| Automation & Manufacturing Industry | Stand-alone compressed air consumption audits, pneumatic machine line balancing, compressed air leak detection, and local gas flow indication |
| Textile Industry | Sub-metering and compressed air consumption audits across air-jet weaving looms, spinning texturizing units, and decentralized pneumatic machinery. |
| Mining Industry | Battery-powered flow measurement for mobile compressor setups, pneumatic drilling utility air supplies, and remote shaft ventilation monitoring. |
| Marine & Shipbuilding Industry | Independent flow auditing of shipboard service air networks, control air lines, pneumatic valve actuation lines, and deck inert gas utilities. |
| OEM Equipment Manufacturers | Direct mounting on packaged air compressor skids, nitrogen/oxygen generator packages, mobile pneumatic tools, and modular test rigs. |
| Sugar & Distillery Industry | Local monitoring of compressed air supply to bagging systems, pneumatic instrumentation valves, and utility air distribution lines across the mill. |
Core capabilities and advantages of the product.
