The toroidal hydraulic load cell TOR-IDRA/T is made by two steel plates of a circular shape, with a central hole to allow the passage of the strands, turned and welded together in such a way as to create a cavity filled with a special oil and connected to a electric transducer which transforms every variation of pressure applyed to the cell in a variation of the electric signal with standard 4-20 mA output.
| Model | FS (t) | A (mm) | B (mm) |
| 1 | 100 | 115 | 265 |
| 2 | 150 | 150 | 320 |
| 3 | 220 | 210 | 405 |
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| Material | Stainless steel with corrosion protection |
| Nominal load | 100, 150, 220 t |
| Supply voltage | 8 - 32 V dc |
| Output | 4 - 20 mA (2 wires) |
| Linearity | 0,25 % of full scale |
| Operating temperature | -40 / +100°C (-40 / +212°F) |
| Protection class | IP 67 |
| Sensor type | Piezoresistive |
| Sensor body | Stainless stees AISI 303 |
General precautions to be followed in the installation and assembly of load cells:
