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FEATURE SPONSOR


TORQUE & TENSIONING ONSITE


Power on windfarm sites is usually provided by small generators with long cable runs, this raises concerns about the quality of the power supply. Consequently, most electric tools will either not run or their torque output becomes erratic.


The EvoTorque2 tool is largely immune from the effects of voltage fluctuation due to its motor controller technology; the tool will either run accurately or indicate that the voltage is outside of tolerance.


NEW TRACEABILITY AND CONTROL BENEFITS


Every torque and angle value that EvoTorque2 applies can be recorded with a corresponding date and time stamp. The tool’s memory can store up to 3,000 such readings. These can be downloaded to a PC either by


FEATURES & BENEFITS


» Up to 12 user IDs can be downloaded and results stored against individual users, a helpful control where tools are shared across multiple users, e.g. different shifts


» Work IDs, which have specific targets (torque, or torque & angle), can be set up - e.g. for a specific nacelle or base bolt. Up to 20 work IDs can be put in a work group and up to five work groups can be set up too


» Targets can also be grouped together under a single heading. This is useful for multi-stage tightening of flanges. This enables audits of not just the bolts of a single tower to be easily conducted, but of all the towers in a windfarm and even across multiple farms


» Users can now set a final torque target for a Snug Torque & Angle Target, i.e. Snug + Angle Target & Final Torque Target. This facilitates checking that bolts are not cross threaded


» Operation Direction – this has been designed to ensure users can undo any bolts they tighten


» Turn Angle option ensures that a bolt must rotate through a given angle when tightening. This prevents the same bolt being tightened multiple times when working on a series of bolts


» A two-stage tightening process has been incorporated to speed up long rundowns for bolt tightening


» EvoTorque2 now has a usage counter so it is possible to see how many times the tool has been used since the usage was last reset


» There are two different lock levels, which restricts operator adjustment of the tool. Level 1 allows selection of pre-installed targets, whilst Level 2 only allows the tool to be used on its current setting


» The tool now has extended ASCII mode capabilities so can be integrated into third party control systems


WEBSITE www.windenergynetwork.co.uk 89


USB cable or transferred wirelessly via Bluetooth Smart.


Modes of operation include Torque, Torque & Angle and Audit. The first two enable users to select torque only


or a combined torque & angle target respectively.


INDEPENDENT TESTS Moreover, in independent tests and calibrations conducted across a number of Spanish windfarm sites; EvoTorque2 achieved the OK/PAA/APPROVAL standard; making it the only electric multiplier permitted for use to perform final torque on a number of windfarm sites.


The tool also features a third party verified sound pressure which does not exceed 70 dB (A) and a vibration level of 0.304 m/s² which significantly reduces any possibility of medical or health and safety related issues such as hearing loss or White Finger, during use.


EVOTORQUE RANGE EvoTorque2 is available in 110V and 230V versions and crucially is weather sealed to IP44. The ranges cover requirements from 100 N·m to 7,000 N·m. The product can be serviced and calibrated locally through an expanding network of international Norbar distributors who have a great deal of wind industry experience.


Norbar


SCAN/CLICK


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