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The Definer 220 allows users to verify gas flow rates, in the field or in the lab, to an accuracy of ±1% percent of reading, including temperature and pressure compensation. Unlike thermal mass flow meters, the Definer 220′s positive displacement technology provides immediate indication of actual volumetric gas flow rate – accurately and independently of gas type. Integrated temperature and pressure sensors in the flow stream allow users to automatically standardize volumetric flow readings to standard conditions, for traceable verifications of mass flow devices.

The Definer 220 represents the next generation of our Proven DryCal® Technology developed specifically for critical industrial and environmental applications. It provides the accuracy, customization and durability needed in today’s exacting, fast-paced workplace.

Key Features

  • Innovative – Primary volumetric and standardized flow reading with ability to connect with Swagelok® fittings
  • Proven DryCal® Technology – Accurate and reliable gas flow readings without messy liquids
  • Easy to setup and use – plug and play installation with simple push button operation
  • Quality and Expertise — ±0.08% Scope of Accreditation for gas flow by NVLAP of NIST; Over 20 years experience providing training, installations, system consulting and custom solutions

Technical Specifications

Approximate Time per Reading 1-15 seconds
Gas Compatibility Use with non-corrosive, non-condensing, non-combustible gases, less than 70% humidity
Flow Modes Pressure or Suction
Measurement Cell Style Integrated
Temperature and Pressure Sensors In the flow stream\nPress.: 3.5 mmHg (typical), 7.0 mm (max); Temp.: 0.8o C (typical), 1.3o C (max)
Reading Styles Single (manual), Continuous or Burst, with averaging function user-selectable from 1 to 100 measurements
Pressure and Suction Fittings 1/4” ID Swagelok® compression fittings, 3/8” fittings on High Model
Storage Temperature 0-70 C
Ambient Humidity 0-70%, non-condensing
Operating Pressure (Absolute) 15 PSI