BGI deltaCal Volumetric Air Flow Calibrator
The BGI deltaCal® is a simple-to-use, NIST Traceable Standard for volumetric air flow, barometric
pressure, and ambient temperature. The deltaCal is a venturi based system with built-in
compensation for changes in ambient temperature and pressure. All deltaCal systems are built and
tested at Mesa which is both a NIST traceable Calibration Laboratory and an ISO 17025 facility.
To begin calibration, simply replace the sampler inlet head on any U.S. EPA PM10 and PM2.5
designated samplers with the deltaCal sampling head. Additionally, the deltaCal is useable with any
air sampler in the 1.5 to 19.5 LPM range with an accessory adapter. The higher flow DC100 Model
allows for calibration of European standard PM samplers. The lower flow DC200 Model allows for
calibration of nephelometers and other light scattering particulate monitors.
- Total flow range of 2 to 19.5 LPM
- DC100 Model provides flow range of 10 – 60 LPM
- DC200 Model provides flow range of 0.3-3.5 LPM
- NIST-traceable accuracy ≤ 1% of flow reading
- Continuous uninterrupted output display of all parameters
Application
- Calibration and audits of PM2.5 and PM10 samplers in accordance with U.S. EPA requirements
- May be used on any sampler in the 1.5 to 19.5 LPM range, 10-60, 0.3-3.5
- Appropriate for field or indoor use
- Calibration of European PM10 samplers operating at 38.4 LPM using the DC100
- Calibration of 50 LPM DICOT samplers and standard DICOT Samplers
Video Link
Calibrating Air Flow in an FRM Using a deltaCal
https://youtu.be/JiIM-y6-9Zg?t=59
Part No
1) BGI Model DC1 – deltaCal Flow Calibrator (1.5 – 19.5 LPM)
2) BGI Model DC100 – deltaCal High Flow Calibrator (10 – 60 LPM)
3) BGI Model DC200 – deltaCal Low Flow Calibrator (0.8 – 3.5 LPM)
