Figure 15: Collar Shim; Figure 16: Welding The Collar Shim In Place; Figure 17: Completed Collar Shim - Geokon 4100 Series Instruction Manual

Vibrating wire strain gauges
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12 | GAUGE INSTALLATION | GEOKON
1.
Take the shim and position it over the gauge end so that the edge of the 6
mm (.25") wide shim is flush with the back edge of the end.
2.
Use the tip of the welder to press the angle in the collar shim tightly into the
corner between the gauge end and the mounting tab as shown below.

FIGURE 15: Collar Shim

Welder Probe
Shim

FIGURE 16: Welding the Collar Shim in Place

3.
Weld the bottom end of the collar shim L onto the mounting tab using three
welds positioned as close to the corner as possible, and three welds at the
outer edge of the collar shim.
4.
Bend the collar shim over the gauge end and force it into the corner on the
other side of the gauge end using the weld probe as before.
5.
Weld it into the corner as before, using a total of six welds.
6.
Weld the collar shim to the end block using three welds along the highest
point of the gauge end, as shown below.
Shim
Welds

FIGURE 17: Completed Collar Shim

7.
Repeat the process on the other gauge end.
8.
When both ends of the gauge have been spot welded, take the handle of a
small screwdriver and lightly tap both end blocks at points over the flanges
Shim
Spot
Welds
Welds
15:
16:
17:

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This manual is also suitable for:

4150 series41514150-54100-84150-44100-9

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