![IS_Pair Mass flow meter 100 SCCM](https://alicatprod.wpenginepowered.com/wp-content/uploads/2024/05/IS_Pair.webp)
Mass Flow Meters
![Alicat IS-MAX mass flow meter for explosive environments IS-Max intrinsically safe flow meter from Alicat.](https://alicatprod.wpenginepowered.com/wp-content/uploads/2024/05/IS-Meter_150px.webp)
ISM Series Flow Meter
Gas mass and volume flow meters for explosive environments
Intrinsically Safe
- 98 gases
- 0.5 SCCM- 5,000 SLPM
- 11.5 – 160 PSIA (high pressure option to 320 PSIA)
- accuracy of flow up to ±0.5% of reading or 0.1% of full scale, whichever is greater
- see Certifications below
Spec Sheets
![Alicat IS-MAX mass flow meter for explosive environments IS-Max intrinsically safe flow meter from Alicat.](https://alicatprod.wpenginepowered.com/wp-content/uploads/2024/05/IS-Meter_150px.webp)
ISMS Series Flow Meter
Corrosive-resistant gas meters for explosive environments
Stainless Steel
- mass flow meter
- as many as 129 gases, including corrosives
- 0.5 SCCM- 5,000 SLPM
- 11.5 – 160 PSIA (high pressure option to 320 PSIA)
- accuracy up to ±0.4% of reading or 0.2% of full scale whichever is greater
- see Certifications below
Spec Sheets
![Alicat IS-MAX mass flow meter for explosive environments IS-Max intrinsically safe flow meter from Alicat.](https://alicatprod.wpenginepowered.com/wp-content/uploads/2024/05/IS-Meter_150px.webp)
ISMW Whisper™ Series Flow Meter
Ultra-low pressure drop mass flow meters
Minimal pressure drop
- mass flow meter
- 98 gases
- 0.5 SCCM- 1,000 SLPM
- 11.5 – 160 PSIA (high pressure option to 320 PSIA)
- accuracy up to ±0.4% of reading and 0.2% of full scale
- 0.07 PSID minimum pressure drop
- see Certifications below
Spec Sheets
![Alicat IS-MAX mass flow meter for explosive environments IS-Max intrinsically safe flow meter from Alicat.](https://alicatprod.wpenginepowered.com/wp-content/uploads/2024/05/IS-Meter_150px.webp)
ISMQ Series Flow Meter
Measure flow rates at higher pressures
Higher pressure
- mass flow meter
- 98 gases
- 10 SCCM- 5,000 SLPM
- 11.5 – 320 PSIA operating pressure
- ± 0.6% of reading or ± 0.1% of full scale, whichever is greater
- see Certifications below
Spec Sheets
Mass Flow Controllers
![Alicat IS-Max MFC Alicat IS-Max intrinsically safe mass flow controller (MFC)](https://alicatprod.wpenginepowered.com/wp-content/uploads/2024/05/ISMC-024_thumb.webp)
ISMC Series Flow Controller
For gas flow control in explosive environments
integrated valve
- 98 gases
- 0.5 SCCM- 250 SLPM
- 11.5 – 160 PSIA (high pressure option to 320 PSIA)
- accuracy of flow up to ±0.5% of reading or 0.1% of full scale, whichever is greater
- see Certifications below
Spec Sheets
![Alicat IS-Max MFC Alicat IS-Max intrinsically safe mass flow controller (MFC)](https://alicatprod.wpenginepowered.com/wp-content/uploads/2024/05/ISMC-024_thumb.webp)
ISMCS Series Flow Controller
Corrosive-resistant gas flow control in explosive environments
stainless steel
- 128 gases, including corrosives
- 0.5 SCCM- 250 SLPM
- 11.5 – 160 PSIA (high pressure option to 320 PSIA)
- accuracy up to ±0.4% of reading or 0.2% of full scale whichever is greater
- see Certifications below
Spec Sheets
![Alicat IS-Max MFC Alicat IS-Max intrinsically safe mass flow controller (MFC)](https://alicatprod.wpenginepowered.com/wp-content/uploads/2024/05/ISMC-024_thumb.webp)
ISMCW Whisper™ Series Flow Controller
Ultra-low pressure drop mass flow controller
Minimal pressure drop
- mass flow controller
- 98 gases
- 0.5 SCCM- 50 SLPM
- 60 PSIA operating pressure
- accuracy to ± 0.4% of reading and ± 0.2% of full scale
- 0.7 PSID minimum pressure drop
- see Certifications below
Spec Sheets
![Alicat IS-Max MFC Alicat IS-Max intrinsically safe mass flow controller (MFC)](https://alicatprod.wpenginepowered.com/wp-content/uploads/2024/05/ISMC-024_thumb.webp)
ISMCQ Series Flow Controller
Control flow at higher pressures
Higher pressure
- mass flow controller
- 98 gases
- 10 SCCM- 2 SLPM
- 11.5 – 320 PSIA operating pressure
- accuracy ± 0.6% of reading or ± 0.1% of full scale, whichever is greater
- see Certifications below
Spec Sheets
Build Options for Intrinsically Safe Mass Flow Meters and Controllers
RS-485 Serial
Analog (4-20 mA)
Modbus RTU (over RS-232 or RS-485)
Downloads
Manuals
IS-Max and IS-Pro Operating Manual
IS-Max and IS-Pro Safe Installation Manual
Brochures
IS-Max and IS-Pro Brochure
Software/Utilities
FlowVision 2.0
Certifications
Intrinsically Safe IS-Max Flow and IS-Pro Pressure devices are approved for use in potentially explosive environments
Alicat IS-Max, IS-Pro Safe Installation Manual
![IS-certifications_ATEX CE 0344 DEKRA 22ATEX0075 X IECEx DEK 22.0078 X](https://alicatprod.wpenginepowered.com/wp-content/uploads/2024/05/IS-certifications_ATEX.jpg)
![CODA coriolis mass flow meter](https://alicatprod.wpenginepowered.com/wp-content/uploads/2024/05/Coda-Series.webp)
Liquid Flow
Liquid flow controllers use either Coriolis or laminar flow technology to accurately control liquid flows across a wide range of applications.
![Dual valve pressure controller 5 PSIG](https://alicatprod.wpenginepowered.com/wp-content/uploads/2024/04/PCD-5PSIG-D_Web.webp)
Pressure Instrumentation
Alicat offers pressure controllers for use in flowing, dead-ended, or vacuum applications.
![](https://alicatprod.wpenginepowered.com/wp-content/uploads/2024/05/custom.webp)
Custom Instrumentation
Order mass flow controllers and meters custom-build to your specific application needs.
Technical Reference
Find guides, tutorials, pinout diagrams, and industrial protocol resources for your Alicat instrument.
Applications
![Gas chromatography column inside a GC analyzer](https://www.alicat.com/wp-content/uploads/2024/05/gas_chromatography_column_carrier_gas_control-scaled.webp)
Gas chromatography processes
![DALL-E geothermal energy extraction illustration](https://alicatprod.wpenginepowered.com/wp-content/uploads/2024/04/DALL·E-2024-02-23-15.59.51-A-simple-illustration-depicting-geothermal-energy-extraction-showcasing-a-cross-section-of-the-Earths-layers.-On-the-surface-theres-a-geothermal-p.webp)
Mining, oil and gas, and hydrogen production
![Hydrogen fuel illustration](https://alicatprod.wpenginepowered.com/wp-content/uploads/2024/04/iStock-1285916859_hydrogen-fuel-illustration-150x150.webp)
Hydrogen electrolysis
Service and Support
Whether it is time for your instrument’s annual recalibration or your instrument needs a repair or upgrade,
you can fill out the Service Request Form below, email us, call us, or start a live chat session to get the service process started.