BGI tetraCal Air Flow Calibrator
The BGI tetraCal® is a simple-to-use, NIST Traceable Standard for volumetric air flow, 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 17025 facility.
To use the tetraCal®, simply connect the tetraCal® and the sampling instrument with tubing and
media, inline. The tetraCal® immediately begins providing the flow rate and ambient condition data
on the screen. Using the optional external temperature probe accessory, the tetraCal can perform
speciation sampler audits as documented by the EPA. The higher flow Ultra Model allows for
calibration of European standard PM samplers.
– Calibration of particulate samplers and industrial hygiene
– Total flow range of 0.1 to 30 LPM
– Ultra model provides flow range of 1 to 60 LPM
– NIST-traceable accuracy ≤ 1% of flow reading
– Continuous uninterrupted output display of all parameters
Application
- 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 0.1 – 60 LPM range
- Usable in field or laboratory
- Suitable for calibration of cascade impactors
