Tri Cal - Flow, Temperature and Pressure Calibrator

TriCal
Flow, Pressure & Temperature
Calibration Device

The BGI Tri Cal is the only audit device that provides a direct indication of volumetric flow rate, barometric pressure and ambient temperature in one instrument. It was developed for use with U.S. EPA FRM samplers, speciation samplers and any instruments operating in the 0.1 to 30 lpm range.

The Tri Cal provides volumetric flow information by measuring the pressure drop caused by air traveling through a venturi. As the flow rate through the venturi increases, the pressure drop increases. A desirable feature of the venturi is that most of the pressure drop created by the instrument is recovered in the expansion section of the venturi. Therefore, measurements are made at nearly the true operating conditions of the sampler.

The Tri Cal is the only field audit device that meets the same temperature criteria as the EPA designated samplers, which must operate between -30° and 40° C.

An optional filter temperature probe is available for use with PM2.5 FRM and speciation sampling systems.

Standard TriCal Unit Includes:

Control Unit with On Screen Display
Selectable Venturis and Inlet Adapters
Air Temperature Sensor
Delta Cal Software
AC Power Adapter

All functions of the Delta Cal are NIST traceable and the device is manufactured in to ISO 9001 standards.