Running a Joint inspection
In the Home page, tap the Menu icon (
). Then, select Joints.In the Joints page, tap Play (
) for running the inspection.
If the configured wrench is not connected or its range is out of the test range, an Information message appear.
On the lower-right corner of the Information message, tap the Manage devices button to add/edit/pair another wrench to use during the test.
In the Select inspection dialog box, select the inspection to do. The instruction page opens, where the characteristics of the inspection are displayed.
On the upper-left corner of the screen, tap the Menu icon (
), then tap one of the following options:Exit from measure to exit from the test.
Instruction to see the instruction to perform the test.
Results chart to see the chart of the measured values.
On the lower-right corner of the Result chart page, tap the More option icon (
) to see the following values:Minimum: minimum measured value.
Maximum: maximum measured value.
Average: average value of all measured values.
STD (σ): standard deviation of the measured values.
Cp and Cpk value for the Cp/Cpk inspection. These index are updated in real time.
X, R and S for the SPC inspection. These index are updated in real time.
Results to see the list of the measured value.
Statistics to see the statistics of the results done.
Traceto see the trace of the result. If the Double results function is enable on the device and on the STwrench, both the residual point and the peak point are marked on the trace.
Summary to see the test results and the Cp/Cpk values.
For Cp/Cpk inspection: Cp and Cpk values change after three results.
For SPC (joint) inspection: X and R values changes after three results.
When the subgroup (S) is completed, the SPC rules check result window is displayed. In this window, the status of the SPC rules is shown. The inspection result depends on the enabled rules. If the rules results are positive, the inspection result is OK.
Below is the list of the rules results that can occur:
Green mark: the rule result is OK.
Red mark: the rule result is NOK.
Gray mark: the rule result is not enabled or it is not possible to make an analysis on it.
Do the results. During the test, the selected page is updated in real time.
To delete one result (when enabled by external software): select the result and on the upper-right corner of the screen tap the More options icon (
) > Delete
To delete all results (when enabled by external software): on the upper right-corner of the Toolbar, tap the More options icon () > Delete all.
For the SPC (joint) inspection, it is not possible to delete a result if the subgroup is completed.
If a result is NOK, the measured value is highlighted in red. If the STwench does not reach the target torque, a dash (-) is shown in the results list and the counter of the done tightenings is not incremented.
The inspection is OK if both Cp and Cpk are equal or greater than Minimum Cp Torque and Minimum Cpk Torque
To add a note to one result: in the Results chart page or in Results page, select a result. Then on the upper-right corner of the Toolbar, tap the More options icon ()> Add note. In the Edit note dialog box, type the note. Then tap Edit.
To add a picture to one result: in the Results chart page or in Results page, select a result. Then on the upper-right corner of the Toolbar, tap the More options icon ()> Add photo. In the Add photo dialog box, frame the object to be photographed . Then tap Capture.
