The convergence monitor consists of a sensor unit coupled to a lower, spring loaded leg and an upper, adjustable leg. The sensor itself consists of a digital indicator that displays movement in inches or millimeters.
Optionally, the convergence monitor can be modified to include the ability to be remotely read by a datalogger. This is especially useful in applications where continuous monitoring is essential.
- Digital indicator with standard range of 150 mm (6 in.).
- Adjustable upper leg with coarse height adjustment, 150 mm (6 in.) increments, and fine height adjustment, 25 mm (1 in.) increments.
- Mine development in squeezing ground.
- Remnant mining.
- Roadway intersections.
- Regional subsidence and closure surveys.
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