Description
The Model 4911 Rebar Strainmeter is designed for measuring strains in foundations, slurry walls, precast piles, caissons, bridge abutments, tunnel liners, etc. The standard Model 4911 (#4 rebar), known as the “Sister Bar,” is installed alongside structural rebar. Larger models (4911A) are available for welding directly into structural rebar. Where short-term dynamic measurements are to be made, bonded resistance (Model 3911/3911A) strain gages can be substituted or added.
Spesification
|
Standard Range |
3000 µε |
|
Resolution |
0.4 µε |
|
Accuracy¹ |
±0.25% F.S. |
|
Nonlinearity |
<0.5% F.S. |
|
Temperature Range² |
−20° to +80 °C |
|
Rebar Sizes |
4911 | 4 (Sister Bar) 4911A | 6, 7, 8, 9, 10, 11, 12 |
|
Active Gage Length |
914 mm |
¹ Other ranges available on request.
² Established under laboratory conditions.
