The pressure drop is a measurement of the air content present in the mortar. The accuracy of the pressure gauge is 1.0.
Both air meters use pushbutton controls for simple test operation. Both meters use a mechanical valve to provide a reliable seal between the pressure chamber and test container. The pressure gauge is integrated in the top of the meter. Quick-release fasteners between the container and cover provide easy sealing and opening of the meter.
Both meters utilize a robust hand pump for operation independent of air supply system.
H-2845: 1 liter volume — EN 1015-7 and EN 459-2
H-2846: 0.75 liter volume — EN 413-2
Line Scale of Pressure Gauge
0-5% by volume 0.1% by volume per scale division
5-10% by volume 0.2% by volume per scale division
10-20% by volume 0.5% by volume per scale division
20-30% by volume 1.0% by volume per scale division
30-50% by volume 5.0% by volume per scale division
50-100% by volume without scale division