isolation

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H Oracle: Kent Tall Early Water Meter

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Shown is the two isolation cylinders place at the back of the meter.

Mid way down is the inlets and at the top the connections to the differential amplifier.

Please note the valve in between the outlets to the differential amplifier. This is to equalise the two pressures for calibration purposes. i.e when zero flow zero reading. Hence overcomes the offset error of the differential amplifier.

Also note the drive pulley, this is the output and goes to the meters above.

At back differential amplifier and front isolation chamber. These are separated from the meter for the
photograph.

Isolate
Tap

Equalise
valve

Drive Pulley

Close up of the equaliser of the isolation chambers.

This allows the system to be calibrated and gets rid of the differential error and offset from the chambers.

The input to this are the Ventura pipes and the outputs go to the differential amplifiers.