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IS-Max™ Intrinsically Safe Mass Flow Controllers

Mass Flow Controllers for Explosive Atmospheres

IS-Max Series: Intrinsically Safe Mass Flow Controllers by Alicat

IS-Max intrinsically safe flow controllers have IECEx and ATEX Zone 0 certificates. These instruments can measure and control flow of gases from 0.5 SCCM full scale to 250 SLPM full scale in explosive gas atmosphere hazardous locations.

Flow accuracy as great as ± 0.5% of reading or ± 0.1% of full scale, whichever is greater
Laminar differential pressure (DP) measurement technology
Up to 128 pre-loaded gas calibrations — switch without losing accuracy
Measures mass flow, volumetric flow, temperature, and pressure
As high as 0.01 – 100% measurement and control range (10,000:1 turndown)
IP66 enclosure
See certificates below

Operating manuals, brochures, software, and utilities →

Full Scale Flow Ranges

0.5 SCCM – 250 SLPM

OPERATING PRESSURE RANGE

11.5 – 160 PSIA
Optional 11.5 – 320 PSIA with ISMCQ

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Alicat Intrinsically Safe Mass Flow Controller

ISMC Series Flow Controller

For gas flow control in explosive atmospheres

Integrated Valve

98 gas calibrations pre-loaded
0.5 SCCM – 250 SLPM
11.5 – 160 PSIA (high pressure option to 320 PSIA)
Accuracy of flow as good as ± 0.5% of reading or ± 0.1% of full scale, whichever is greater
See certificates below

Spec Sheets

0.5 SCCM – 250 SLPM

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

ISMCS Series Flow Controller

Corrosion-resistant gas flow control in explosive atmospheres

Corrosion resistant

128 gas calibrations pre-loaded, including corrosives
0.5 SCCM – 250 SLPM
11.5 – 160 PSIA (high pressure option to 320 PSIA)
Accuracy as good as ± 0.4% of reading and ± 0.2% of full scale
See certificates below

Spec Sheets

0.5 SCCM – 250 SLPM

Low Pressure Drop

ISMCW Whisper™ Series Flow Controller

Ultra-low pressure drop mass flow controller

minimal pressure drop

Mass flow controller
98 gas calibrations pre-loaded
0.5 SCCM – 50 SLPM
60 PSIA operating pressure
Accuracy as good as ± 0.6% of reading or ± 0.1% of full scale, whichever is greater
0.7 PSID minimum pressure drop
See certificates below

Spec Sheets

0.5 SCCM – 50 SLPM

Alicat Intrinsically Safe Mass Flow Controller for higher pressures

High pressure

ISMCQ Series Flow Controller

Control flow at higher pressures

higher pressure

Mass flow controller
98 gas calibrations pre-loaded
10 SCCM – 2 SLPM
11.5 – 320 PSIA operating pressure
Accuracy as good as ± 0.6% of reading or ± 0.1% of full scale, whichever is greater
See certificates below

Spec Sheets

10 SCCM – 2 SLPM

Build Options

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 (default) 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 certificates below

Humid Gases

Relative humidity compensation, dew point reading

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Each product is made-to-order.  Alicat’s Applications Engineers are ready to provide expertise and discuss custom options, ensuring the best fit for your needs.

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