Miniature and Extended Range (VW) | Model 4151

The Model 4151 is a modification of the Model 4150 strain gage in which the spot-weldable tabs have been replaced by pins welded to the end blocks and designed to be grouted into two short holes drilled into the material under test. Special versions of the Model 4151 are available with extended ranges. These gages are particularly useful for measurements in high strain regimes such as on plastic pipes or piles and on fiberglass structural members and rebars. A unique design allows these gages to be manufactured without increasing their overall length, making them particularly suitable where space and or access is limited.The Model 4000 Strain Gage is designed primarily for arc welding to steel structures such as tunnel linings, excavation bracing, piles and bridges. The gage has a 150 mm gage length (longer or shorter versions are also available), a 3000 µε range and a 1 µε sensitivity. The gage can be adapted for bonding to concrete or for bolting to steel surfaces by modification of the end blocks.

• Strain Range : ±4000 µε (approximately)
• Effective Gage Length : 76.2 mm
• Accuracy : ±2%, individually calibrated to NIST standards
• Sensitivity : 500 µε/mV/V (approximately)
• Circuit : Full Wheatstone Bridge with 4 active 350 ohm foil gages, 4-wire hookup
• Temperature Range : −50°C to +120°C
• Overall Size : 110.5×31.2×13 mm

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