When nuts and bolts are fastened together under load the action of tightening the nut increases the force applied to the bolt causing elongation. The Elcometer NDT BG80TDL Bolt Tension Monitors Series accurately measure this elongation allowing the gauges to accurately measure time (nanoseconds), elongation, load, stress, and %strain of the bolt.By using ultrasonics, bolt tension monitors are not affected by temperature, friction or resistance factors affecting the accuracy of standard torque measurement techniques – giving the Elcometer NDT BG80TDL Bolt Tension Monitors Series accuracy within 0.0001mm.Using the gauge’s RS232 interface together with the optional shut off accessory the gauge can be programmed to automatically stop the tightening process when the appropriate load has been applied.

Elcometer NDT BG80TDL Bolt Tension Monitors Advantages

• Range of display & measurement options including: Elongation, Load, Stress, and %Strain, RF, Rectified, Large Digits with Limits Bar.
• Data output and storage: 8,000 readings and waveforms in multiple groups.
• Auto Set feature automatically optimizes detection and adjusts display.
• Hi/Lo Alarm tolerance limits work in conjunction with the data port