Jewell Model A-4 Multiple Point Snap-Ring Anchor Extensometer

Jewell Model A-4 Multiple Point Snap-Ring Anchor Extensometer The Model A-4 Multiple Point Rod Extensometer with Snap-Ring Anchors is quickly and easily installed in boreholes in hard or competent rock. Anchors are pushed to the required depth on the end of setting rods and then a cord is pulled to […]

Jewell Model A-4 Multiple Point Snap-Ring Anchor Extensometer

The Model A-4 Multiple Point Rod Extensometer with Snap-Ring Anchors is quickly and easily installed in boreholes in hard or competent rock. Anchors are pushed to the required depth on the end of setting rods and then a cord is pulled to remove the locking pin which allows two retaining rings on each anchor to snap outward and grip the borehole. Up to eight anchors can be installed, at various depths, in a 76 mm diameter borehole. Particularly useful in upward directed boreholes.

Standard Range up to 300 mm nominal
Least Reading 0.025 mm
Borehole Diameter1 38 to 76 mm
Maximum Length 50 m

 

No Information Available.

No Information Available.