Mega System A1-Aircal Digital Flow Calibrator

A1-Aircal is a digital flow calibrator used to verify the key parameters recorded by air samplers: pressure, flow and temperature. It includes high-precision pressure sensors and a temperature sensor in the measuring cell. Flow can be read at both actual and normalized conditions; measurements are saved to permanent memory and transferred by USB.

• Medium-flow cell: 10-50 L/min.
• High-flow cell: 100-600 L/min.
• Runs on a 12 VDC NiMH battery or 230 VAC, 50 Hz.
• 195 x 100 x 40 mm and 550 g, fits easily in a field bag.
• The cell is selected according to the flow range of the sampler to be verified.

It is suitable for checking the flow setting of particulate samplers such as the Aither PMS and Hornet series, and it is a practical reference for periodic verification at ambient air stations.

Being able to read sampler flow at actual and normalized conditions on the same instrument simplifies reporting when field results need converting to standard conditions. Data is transferred to a computer by USB.

Tetra supplies A1-Aircal with a cell suited to the flow range of the sampler fleet. Tracking of the calibrator's own verification and maintenance and battery replacement are provided by local service; verification visits to measurement stations can be planned.