We manufacture the Pail Measuring Instrument with two recesses. One is for 10 to 20 litre pails on the left-side and other is 1 to 10 litre pails on the right side.
The pail is placed in the measuring recess of the unit. Then the operator can switch a toggle switch to activate measuring. That is on either one of the measuring recesses.
The measuring band contracts via a pneumatic cylinder to a pre-determined pressure, set on the regulator. The Pail Measuring Instrument will display the measurement in mm once the cylinder has stopped moving. Where the operator can take the measurement there are two indicators, A and B, for each range of pail sizes. To release the pail it is a simple matter of switching the toggle switch in the opposite direction and the band will return to its original position.