IS-Max™ Mass Flow Meter for CID1 (Zone 0, 1)

Flowmeters designed for Class I Division 1 environments offer accurate gas measurement in areas where explosive gases are consistently present.

IS-Max™ is intrinsically safe and has received certification for Class I Div 1, ATEX Zone 0, IECEx, thereby ensuring adherence to regulations in hazardous locations.

Employing laminar differential pressure technology, IS-Max delivers precise mass and volumetric flow measurements along with multivariate reporting that includes temperature and pressure information.

Key Specifications:

• Precision: ± 0.4 % of the reading or ± 0.2 % of the full scale
• Digital MODBUS or Alicat^® ASCII,  plus analog options make it easy to gather data and automate from outside the hazardous zone
• A clear display facilitates rapid verification during both installation and field assessments
• As many as 128 pre-installed gas calibrations allow for immediate switching without any loss of accuracy
• Parameters: Mass flow, volumetric flow, absolute/gauge pressure, barometric pressure, temperature, relative humidity, dew point, and additional metrics

Full Scale Flow Ranges: 0.5 SCCM-5,000 SLPM

Operating Pressure Range: 11.5-160 PSIA, Optional 11.5-320 PSIA with ISMQ

ISM Series Flow Meter

Gas volumetric and mass flow meters for explosive environments

Image Credit: Alicat Scientific, Inc.

• 98 gases
• 0.5 SCCM-5,000 SLPM
• Intrinsically safe mass flow meter
• 11.5-160 PSIA (high-pressure option to 320 PSIA)
• Flow accuracy as precise as ± 0.5 % of the reading or 0.1 % of the full scale, depending on which is greater

ISMS Series Flow Meter

Corrosive-resistant gas meters for explosive environments

Stainless Steel

Image Credit: Alicat Scientific, Inc.

• Pressure range: 11.5 to 160 PSIA
• Flow range: 0.5 SCCM to 5,000 SLPM
• Corrosion-resistant intrinsically safe mass flow meter
• It offers an accuracy of ± 0.4 % of the reading and 0.2 % of the full scale
• This device can measure up to 128 gases, including corrosive substances

ISMW Whisper™ Series Flow Meter

Minimal Pressure Drop

Ultra-low pressure drop mass flow meters for explosive gas atmospheres.

Image Credit: Alicat Scientific, Inc.

• 98 gases
• 0.5 SCCM-1,000 SLPM
• 0.07 PSID minimum pressure drop
• Low-pressure-drop intrinsically safe mass flow meter
• 11.5-160 PSIA (high-pressure option available up to 320 PSIA)
• Accuracy can be as precise as ± 0.6 % of the reading or ± 0.1 % of the full scale, depending on which is greater

ISMQ Series Flow Meter

Higher Pressure

Measure flow rates at higher pressures in explosive gas atmospheres areas.

Image Credit: Alicat Scientific, Inc.

• 98 gases
• 10 SCCM-5,000 SLPM
• Operating pressure range of 11.5-320 PSIA
• Intrinsically safe mass flow meter designed for elevated pressures
• Accuracy can reach ± 0.6 % of the reading or ± 0.1 % of the full scale, depending on which is greater

Build Options for Intrinsically Safe Mass Flow Meters

Source: Alicat Scientific, Inc.