Mass Flow Meters and Controllers that are Intrinsically Safe 

IS-Max™ Intrinsically Safe Mass Flow Meters and Controllers for Explosive Environments

Intrinsically safe flow measurements and precise control, with unprecedented insights into your process. Gain a richness of variables reporting that’s unmatched in hazardous applications. IS-Max series of gas meters and controllers have ATEX/IECEx certifications for use in potentially explosive environments.

  • Accuracy of flow to ± 0.5% of reading or ± 0.1% of full scale, whichever is greater
  • 98-129 field-selectable gas calibrations
  • Easy-to-read display makes it easy to verify operating conditions in the field and on installation
  • Digital MODBUS or ASCII, or analog communications
  • Measure Volumetric flow, Mass flow, Absolute pressure, Gauge pressure, Barometric pressure, Temperature, Relative humidity, Dew point, and more

Available variants

Corrosive-Resistant (ISMS/ISMCS)

FLOW RANGES

0.5 SCCM – 5,000 SLPM (meters)

o.5 SCCM – 250 SLPM (controllers)

PRESSURE RANGES

11.5 – 160 PSIA

Optional 11.5 – 320 PSIA with ISMQ/ISMCQ

Mass flow meter 100 SCCM

Mass Flow Meters

IS-Max intrinsically safe flow meter from Alicat.

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

IS-Max intrinsically safe flow meter from Alicat.

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

Mass Flow Controllers

Alicat IS-Max intrinsically safe mass flow controller (MFC)

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 intrinsically safe mass flow controller (MFC)

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

Build Options for Intrinsically Safe Mass Flow Meters and Controllers

Calibration
Standard or high accuracy; custom calibration points
Communication Protocols
RS-232 Serial (default)
RS-485 Serial
Analog
(4-20 mA)
Modbus RTU (over RS-232 or RS-485)
Displays
Backlit monochrome or none
Process Connections
NeSSI SP76 compatible; M5, 10-32”; 1/8”, 1/4“ NPT; BSPP, SAE, and VCR
Ingress Protection
IP66
Hazardous environment ratings
See Certifications, below
Humid gases
Relative humidity compensation, dew point reading

Downloads

Manuals

IS-Max and IS-Pro Operating 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

DEKRA IECEx 22.0078X Certification
DEKRA 22ATEX0075 X Certification
Alicat IS-Max, IS-Pro Control Drawing 20231130
CE 0344 DEKRA 22ATEX0075 X IECEx DEK 22.0078 X
CODA coriolis mass flow meter

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

Pressure Instrumentation

Alicat offers pressure controllers for use in flowing, dead-ended, or vacuum applications.

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

Gas chromatography processes

DALL-E geothermal energy extraction illustration

Mining, oil and gas, and hydrogen production

Hydrogen fuel illustration

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.

7641 N Business Park Dr. Tucson, AZ 85743

Geograaf 24
6921 EW
Duiven, The Netherlands