TMB series
TMB series built-in strain gages for testing of the pre-strained concrete.
These gages are used to determine and control the mechanical stress of concrete. Material of the sensitive grid: Constantan or Karma alloy. The length of the sensitive grid is 80 mm or 100 mm. TMB series strained gauges are thermally compensated for concrete.
Parameters
| Sensitive grid | Encapsulated in a water-tight housing |
| Overall dimensions of the protective housing: | 130 x 17 x 10 mm |
| Nominal resistance: | 120 Ohm or 350 Ohm |
| Outer diameter of the lead wire: | 5.1 mm |
| Lead wire core transverse section: | 1.96 mm2 |
| Wire resistance: | no more than 0.056 Ohm/m at 20°C |
| Normal operating temperature range: | -5°С ... +50°С |
| Limit operating temperatures range: | -30°С ... +60°С |
Configuration
| Designation | Nominal resistance, Ohm | Base dimensions, mm | Height dimensions, mm | Length dimensions, mm | Width dimensions, mm |
|---|---|---|---|---|---|
| TMB120‐80AA‐3L2 | 120±0,8% | 80 | 10 | 130 | 17 |
| TMB350‐100AA‐L2 | 350±0,8% | 100 | 10 | 130 | 17 |
