Hydraulic Anchor Load Cells
The hydraulic anchor load cells are used to monitor loads in tiebacks, rock bolts and cables. They consist of two ring-shaped stainless steel
plates welded together around their circumference. The anular space between the plates is filled under vacuum by deaired oil. The load is directly measured by a Bourdon manometer connected to the cell body. The manometer is calibrated in laboratory to allow direct readings in KN. Electrical models equipped with pressure transducer is also available for remote readings. A very stiff distribution plate is supplied, in order to ensure that the
load is applied equally over the loading surface of the cell.
| Model | L2M0 MODEL | L2E0 MODEL |
|---|---|---|
| Model Description | Hydraulic load cell equipped with Bourdon gauge manometer | Hydraulic load cell equipped with electrical pressure transducer |
| Full scale capacity | from 300 to 1500 KN | from 500 to 1500 KN |
| Overload | 120% with less than 2% FS zero shift | 120% with less than 2% FS zero shift |
| Resolution | ≤ 0.5% FS | ≤ 0.025% FS |
| Signal output | 4-20 mA | |
| Accuracy | manometer class ±1.5 % FS | ±1% FS |
| Material | AISI 304 stainless steel | AISI 304 stainless steel |
| Temperature drift | 0.25 KN/°C | 0.05 F.S./°C |
| Distribution plate OD | equal to the cell loading area | equal to the cell loading area |
| Compensated temperature range | -35°C + 60°C | -35°C + 60°C |
