The BGI High-Volume Calibrator (HiVol Cal) is a simple-to-use, NIST Traceable Standard for volumetric air flow, barometric pressure, and ambient temperature.

The HiVol Cal is a venturi based system with built-in compensation for changes in ambient temperature and pressure. All HiVol Cal systems are built and tested at Mesa which is a NIST traceable Calibration Laboratory.  

  • Simply connect, read and adjust the flow controller of the HiVol to the BGI HiVol Cal. Adapters are available for easy calibration of 2” radiological filter holders and 8×10” filter holders. The HiVol Cal is a preferable alternative to standard orifice calibration. 
  • Total flow range of 7 – 54 CFM 
  • NIST-traceable accuracy ≤ 1% of flow reading 
  • Continuous uninterrupted output display of all parameters 
  • Adapters available for 2” and 8×10” filter holders
Technical Specifications
Product Options
Document Downloads

Technical Specifications

  • Flow Range: 7- 54 CFM 
  • Accuracy: +/-1% 
  • Temperature Application: -30° to 55° C 
  • Pressure Application: 400 – 800 mmHg (534 – 1066 millibars) 
  • Accuracy: 0.75% of Reading 
  • Dimensions:
    • Measuring Head 4.5 in. Max OD (11.4cm) X 9.5in. high (24.1cm)
    • Control Module 8 in. high (20.3cm) X 4 in. wide (10.15cm) X 1.7 in. thick ( 4.32 cm) 
  • Weight: 2 lbs 
  • Battery: 4 – AA Disposable 
  • NIST Traceable Calibration: Certificate

Product Options

  • Calibration of high volume particulate samplers 
  • Calibration of PUF Samplers 
  • Calibration of high flow rate impactors 
  • Calibration of radiological samplers

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