Head Tension Unit & CCL Combined

The Head Tension/Compression Unit (HTU009) detects longitudinal force in the toolstring that may be either tensile or compressive. The HTU009 is run below the Ultrawire controller (HTU/XTU) and measures tension up to 1200kg and compression up to 400kg. When either using coiled tubing or during tractor operations, the ability to measure compression can help to avoid toolstring damage. This function is most useful when an obstruction is encountered.