In hot-dip and electrolytic galvanizing lines this fluorescence gauges are installed for non-contact, continuous and precise measurement of the coating thickness.

The gauge-heads for the measurement of top and bottom face can be mounted on a double beam, O-frame type scanner for measurement against the free running strip or can be supplied with individual single beam scanners for measurement against a roll.

In hot-dip galvanizing lines this coating weight gauge can be supplied for the so-called hot, warm and cold positions. The gauges for the different locations differ mainly in the cooling capacity and the thermal insulation of the gauge-heads. For the hot position customer specific mechanics are supplied.

This gauge-heads have a robust stainless steel housing that contains the x-ray source with a metal-ceramic tube, the high voltage generator and emission control and the detector modules with application specific pre-filters.

Specification:

Application:

Other typical applications are copper, brass, nickel, cobalt and chrome coatings. For alloys like Zn/Al the composition of the alloy can optionally be determined in addition to the total coating thickness. For galvannealed coatings the iron-content is measured together with the coating thickness.