When you need Mass flow control for class I div 1 or class I div 2 areas, also without explosion proof enclosures, you might need to be looking at the IS range from Alicat.
The IS-Max™ series of intrinsically safe mass flow controllers is designed for use in explosive gas atmospheres, providing accurate and reliable flow control in demanding industrial applications. With IECEx and ATEX Zone 0 certification, these controllers offer exceptional safety and performance.
- Wide Flow Range: Control gas flow from 0.5 SCCM to 250 SLPM full scale.
- High Accuracy: Flow precision of ±0.5% of reading or ±0.1% of full scale, ensuring consistent and reliable operation.
- Advanced DP Technology: Utilises laminar differential pressure (DP) measurement for enhanced accuracy.
- Multi-Gas Compatibility: Equipped with 128 pre-loaded gas calibrations, allowing effortless switching without loss of accuracy.
- Comprehensive Data Monitoring: Measures mass flow, volumetric flow, pressure, and temperature in real-time.
- Exceptional Turndown Ratio: Control and measure across a 10,000:1 turndown range (0.01% – 100%).
- Built for Harsh Environments: Features a durable IP66-rated enclosure for protection against dust and water.

Engineered for safety, precision, and flexibility, IS-Max™ flow controllers ensure stable performance in hazardous locations while delivering unmatched control over gas flow processes.
Browse the ISMC Series