Elecometer BG80 Bolt Tension Monitor


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 BG80 bolt tension monitor accurately measures 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 BG80TDL accuracy within 0.0001mm (0.00001 inch).

Using the gauge's USB 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.


Range of display & measurement options including: Elongation, Load, Stress, and %Strain, RF, Rectified, Large Digits with Limits BarBG80TDL features temperature compensation to counteract measurement irregularity caused by temperature changeData storage capability: 4GB internal memoryAuto Set feature automatically optimizes detection and adjusts displayHi/Lo Alarm tolerance limits work in conjunction with the data port

How does it work?

As a fastener is tightened it stretches (elongates) in length.

Manual torque wrenches measure the force applied when tightening a fastener, the accuracy can be affected by temperature, friction and resistance.

As BG80TDL ultrasonically measures the change in length accurately determining the applied load of a fastener as it is tightened, they are not affected by these factors.

Product Data Sheet


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