Tide gauges – Wellhead float gauge

The Wellhead float gaugeThe Wellhead gauge measures the sea level by means of a float in a stilling well. The float is usually of a smaller diameter than that used on a Munro gauge (about 45 cm diameter), and has a counterweight attached to a smaller diameter pulley than that of the float so it is not immersed in the sea when the float rises.

The Wellhead unit does not produce a chart but does give a readout of the height. It is interfaced to the datalogger via a precision potentiometer.

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