Mini Packers
The MOD-2A Mini Packer is a small mechanical filter-end packer combined with an external vibrating-wire pressure transducer, used to monitor pore water pressure at the rock or concrete interface in tunnels, underground openings and basements.
- Range
- 0.2, 0.5, 1 MPa (other ranges available)
- Borehole size
- > 760 mm deep x 25 mm diameter
- Packer
- Filter-end mechanical packer
Overview
In detail
How it works
The mechanical filter-end packer is inserted into a 25 mm borehole and combined with an external vibrating-wire pressure transducer or manometer. Installation uses only simple hand tools: a standard concrete drill for the borehole and an adjustable open-end wrench for fixation.
Deployment
The MOD-2A is suited to short-term pressure monitoring during construction or rehabilitation of underground structures. The external pressure transducer can be removed at any time, and the whole system can be removed and reinstalled at another location.
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Specifications
Technical specifications
- Borehole size
- > 760 mm deep x 25 mm diameter
- Packer
- Filter-end mechanical packer
- Piezometer
- PWC (or optional manometer)
- Range
- 0.2, 0.5, 1 MPa (other ranges available)
- Cable
- IRC-41A
- Tubing
- Stainless steel
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