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Alicat ISMS - Intrinsically Safe Anti Corrosive Mass Flow Meter

  • Corrosive resistant gas meters for explosive environments
  • Full scale flows from 0.5 SCCM up to 5000 SLPM
  • Atex II 1G Ex ia IIC T4 Ga / IECEx Ex ia IIC T4 Ga.

The New Alicat ISMS series of mass flow meter

Alicat ISMS series of mass flow meter are Atex and IECEx Zone 0 certified. The intrinsically safe mass flow meters are for use with some corrosive gases and gas mixes.

Selectable and custom mix gases

Each device comes pre-loaded with a choice of 129 user-selectable gases and gas mixes. In addition the user may programme 20 user-defined mixes onto their device with each mix containing up to 5 gases with a 0.01% composition resolution.

Materials

The ISMS series offers a 316L stainless steel body with FFKM standard elastomers for improved corrosive gas combability, FKM and EPDM elastomers are also available where required.

Flow rates and port configurations

ISMS series from Alicat is available with full scale flow rates from 0.5 SCCM up to 5000 SLPM with typical port configurations ranging from M5 x 0.8mm female up to 1 1/2” NPT female. Other thread variants are also available including BSPP, SAE, or Swagelok®-compatible (VCO® and VCR®).

Accuracy

Standard accuracy across all flow ranges is ± 0.8% of reading and ± 0.2% of full scale, a high accuracy model is also available improving this to ± 0.4% of reading and ± 0.2% of full scale.

ISMS series feature a 4 – 20 mA output as well as RS-232 serial communications with option RS-485 or Modbus RTU (over either RS-232 or RS-485).

Display and ingress protection

Every device also comes with Alicats feature rich backlit monochrome display for easy setup and configuration. Ingress protection is to IP66 with electrical connections being via the DB15 connection port.

Optional relative humidity sensor can compensate for water vapour in hydrogen production calculations, ensuring a prevised measurement of hydrogen output.

Measurements available

Standard on board measurement and calculation ensure many variables are reported including:

  • Temperature
  • Mass flow
  • Volumetric flow
  • Absolute pressure
  • Gauge pressure
  • Barometric pressure
  • Relative humidity (with optional RH sensor)
  • Dew point (with optional RH sensor)
  • Percent water vapor (with optional RH sensor)
  • Total mass
  • Total volume

ISMQS models are also available for higher pressure applications with a P1 inlet pressure of up to 320 PSIA / 22 bara.

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Industries

The Alicat ISMS - Intrinsically Safe Anti Corrosive Mass Flow Meter is widely used in the following industries:

Alicat recalibration service

Alicat Calibration and Service Centre

We provide a certified annual recalibration service on all Alicat mass flow meters and mass flow controllers. Further details on our recalibration service.

Manufacturer

Alicat Scientific