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The BGI tetraCal® is a simple-to-use standard for volumetric airflow, barometric pressure, and ambient temperature. The tetraCal is a venturi based system with built-in compensation for changes in ambient temperature and pressure. All tetraCal systems are built and tested at Mesa which is both a NIST traceable Calibration Laboratory and an ISO-9001:2015 facility.

  • Calibration of particulate samplers and industrial hygiene
  • Total flow range of 1.2 to 30 LPM
  • Ultra model provides a flow range of 1 to 60 LPM
  • Continuous uninterrupted output display of all parameters
  • Higher flow Ultra Model allows for calibration of European standard PM samplers
  • Simple ON/OFF operation — all data displayed on screen automatically
  • Venturi-based calibrator
  • Portable
  • 20 hour battery life (4-AA)
  • Furnished with universal power supply (120/240 VAC)
  • Download feature with supplied software
  • Calibration of environmental and industrial hygiene air-sampling instruments
  • Calibration and audits of speciation and particulate samplers to U.S. EPA requirements
  • May be used on any sampler in the 1.2 – 30 LPM range
  • Usable in field or laboratory
  • Suitable for calibration of cascade impactors
  • Flow Rate Range: 1.2 – 30 LPM (tetraCal TC5), 1 – 60 LPM (tetraCal Ultra TC14)
  • 1-60 LPM (actual volumetric reading)
  • Temp Operational Range: -30oC to 55oC
  • Temp Reading Range: -30oC to 55oC
  • Temp Reading Precision: 0.5oC
  • Barometric Pressure Range: 400 – 800 mmHg (534 – 1066 millibars)
  • Dimensions of Control Module: 1.59 in. high (4.04 cm) X 3.9 in. wide (9.91 cm) X 7.7 in. long (19.61 cm) Height with venturi and hose adaptor 6.30 in (16.00cm)
    Weight with Venturi: 7.4 oz (209 g)
  • Dimensions of Carrying Case: 15.75 in. wide (40.00 cm) X 4.5 in. high (11.43 cm) X 12.25 in. thick (31.20 cm)
  • Weight Complete with Contents: 4.69 lbs (2.13 kg)