
Overview
Mass flow meters
Our most versatile mass flow meters, thanks to highly sensitive, multivariable Laminar DP technology. Perfect for versatility in research environments, while offering precision and reliability for industrial applications.
- Laminar DP (differential pressure) mass flow measurement technology pioneered by Alicat
- 98 standard (up to 130) pre-calibrated gas options – switch between gases without loss of accuracy
- Measures mass flow, volumetric flow, temperature and pressure
- Measurement range 0.01–100% (10,000:1 turndown)
Mass flow meters with laminar differential pressure technology

Alicat MQ Series High-Pressure Gas Mass Flow Meter
- Measure flow rates at higher pressures
- 10 SCCM – 12,000 SLPM options
- 11.5–320 PSIA operating pressure
- Accuracy as good as ± 0.6% of reading or ± 0.1% of full scale (whichever is greater)
- Repeatability ± 0.1% of full scale
Technical specifications
| Parameter | |
|---|
| Mass flow accuracy at calibration conditions | ± 0.6% of reading or ± 0.1% of full scale, whichever is greater |
| Bidirectional option | No additional uncertainty |
| Flow repeatability (2σ) | ± 0.1% of full scale |
| Flow measurement range | 0.1–100% of full scale |
| Temperature sensitivity | Mass flow zero shift: ± 0.01% of full scale per °C from tare temperature, per atm Mass flow span shift: ± 0.01% of reading per °C from 25 °C, per atm |
| Pressure sensitivity | Mass flow zero shift: ± 0.01% of full scale per atm from tare pressure Mass flow span shift: ± 0.1% of reading per atm from calibration conditions |
| Operating temperature range | -10…60 °C |
| Temperature accuracy | ± 0.75 °C |
| Operating pressure (full scale) | 320 PSIA |
| Pressure accuracy | Above 1 atm: ± 0.5% of reading Below 1 atm: ± 0.07 PSIA |
| Total volumetric uncertainty | ± 0.5% of reading (additional uncertainty) |
| Sensor response time | < 1 ms |
| Typical indicator response time | < 10 ms, depending on flow rate |
| Typical warm-up time | < 1 s |
For detailed information on all flow meter models, contact our laboratory installation consultants.
Datasheets (Alicat):
556,191.00 TL
556,191.00 TL
190,031.93 TL
570,095.78 TL
95,942.95 TL
575,657.69 TL
64,579.96 TL
581,219.60 TL
556,191.00 TL
556,191.00 TL
190,031.93 TL
570,095.78 TL
95,942.95 TL
575,657.69 TL
64,579.96 TL
581,219.60 TL
556,191.00 TL
556,191.00 TL
190,031.93 TL
570,095.78 TL
95,942.95 TL
575,657.69 TL
64,579.96 TL
581,219.60 TL
556,191.00 TL
556,191.00 TL
190,031.93 TL
570,095.78 TL
95,942.95 TL
575,657.69 TL
64,579.96 TL
581,219.60 TL
556,191.00 TL
556,191.00 TL
190,031.93 TL
570,095.78 TL
95,942.95 TL
575,657.69 TL
64,579.96 TL
581,219.60 TL
556,191.00 TL
556,191.00 TL
190,031.93 TL
570,095.78 TL
95,942.95 TL
575,657.69 TL
64,579.96 TL
581,219.60 TL
556,191.00 TL
556,191.00 TL
190,031.93 TL
570,095.78 TL
95,942.95 TL
575,657.69 TL
64,579.96 TL
581,219.60 TL
556,191.00 TL
556,191.00 TL
190,031.93 TL
570,095.78 TL
95,942.95 TL
575,657.69 TL
64,579.96 TL
581,219.60 TL
556,191.00 TL
556,191.00 TL
556,191.00 TL
556,191.00 TL