Displacement monitoring
Rock-IT — 2 Anchor Analogue Extensometer
A reliable visual extensometer to help underground teams identify changing ground conditions and act with confidence.
Monitoring ground movement at two depths around underground roadways. The 2 Anchor Rock-IT provides a direct visual reading of displacement helping site personnel understand where movement is occurring and monitor changes over time.
- Two anchors monitor displacement at separate depths.
- Reflective scales provide clear visual readings.
- Can be used to monitor movement in roof, ribs and floors.
- Easy installation with no grouting required.
- Resettable, robust and corrsion resistant stainless steel wires extend instrument life.
Available sizes
- RIT2M-10S
- Suit 27mm–35mm borehole; medium collar 38mm–45mm; and small spring anchors 27mm–35mm
- RIT2M-10M
- Suit 38mm–45mm borehole; medium collar 38mm–45mm; and medium spring anchors 38mm–45mm
- RIT2L-10L
- Suit 50mm–57mm borehole; large collar 50mm–57mm; and large spring anchors 50mm–57mm
Specifications
- Monitoring points
- 2 anchors
- Readout
- Analogue, lower (L) and total (T) indicators
- Total measurement range
- 150mm
- Lower measurement range
- 75mm
- Accuracy
- 1mm
- Maximum total anchor depth
- 12m
- Maximum lower anchor depth
- 5m
- Projection below roof
- 95mm
Downloads
- Brochure
-
Brochure for the Rock-IT analogue extensometers.
Download PDF
