Sturtevant Richmont Programmable Torque Verifier FM II, Руководство пользователя

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Page 15
The operator then tightens the third fastener in the
series, but uses the torque wrench incorrectly by
pulling past the click. This results in the red Reject
LED lighting on the PTV, and the beeper going off.
The count does not advance, since the wrench was
not used properly.
The operator next uses the wrench to loosen the fas-
tener, and retightens it properly. Because the wrench
was used correctly, the green Accept LED lights, the
beeper sounds twice to announce the completion of
the batch, then the LED Panel resets to 0 for the next
assembly. At the same time, a Batch Accept signal is sent to the PLC port. If a connected PLC
is programmed to advance the line upon completion of the operation, the signal from the PTV
can trigger the advance. This removes the necessity for operator intervention to achieve line
advance, reducing the probability of error or delay.
Second Example
In this second example there are six fasteners to be tightened at the workstation, two on the front
of the assembly and four on the rear. The two on the front each have the same torque. The four
on the rear have the same torque as each other, but the torque is different from the fasteners on
the front. Further, the front joint is a hard joint (metal to metal), and the rear joint is a soft joint
that has a gasket, necessitating different signal durations (click times).