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tcl – i • CRACK MONITOR© TYPE TT 4 Displacement
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The tcl – i ● CRACK MONITOR© TYPE TT 4 DISPLACEMENT covers the following Ranges: Displacement -5 to +110 mm, Crack Width -10 to +50 mm.
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The tcl – i ● CRACK MONITOR© TYPE TT 4 consists of 3 Parts:
Anvil: this is being installed on the receding part of the wall, the edge approx. 5mm from the crack, the slotted holes perpendicular to the crack.
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Measuring Plate: this to be installed on the proud part of the wall, with the rear edge approx. 40 mm from the edge of the anvil nearest to the crack, so that the measuring scale cantilevers centrally over the anvil.
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Ruler: this is being fed through the slot in the measuring plate, with the -5mm indicator first, until the recess at this end of the ruler fits flush over the plinth of the anvil.
Where the measuring plate now intersects the red centre line of the ruler, the red scale shows the actual displacement.
The position of the red centre line of the ruler against the scale on the measuring plate shows the actual crack width.
Both measurements at the time of installation need to be noted as reference zero.
After taking readings, the ruler must be taken out for safe keeping until the next reading.
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By measuring the distance from the edge of the measuring plate to the edge of the anvil, parallel movements of the two crack edges in respect of each other (Z-Axis) can also be quantified.
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As for other applications, for monitoring displacement there are also a number of Fakes and other adventurous contraptions being offered. With most of these products, it is quite obvious that the creator has not been willing or able to put any intelligent thought into his creation, and that he is totally untrammeled by practical, or even theoretical knowledge and experience in building construction.
This Fake shown below represents an exact replica of our Original
tcl – i ● CRACK MONITOR© TYPE TT 4 DISPLACEMENT Mk 1
the production of which has been discontinued years ago, due to problems in actual application, which became apparent by feedback from site. The exact likeness in every detail of our Original Product demonstrates clearly the intent of the vendor.
Building condition analysis seems also to have been a totally alien concept in the philosophy of these miscreations.
Another product being offered for this purpose is shown below. The obvious flaw of this contraption is, that if the crack widens, the two components conversely are moving away from each other, and no further readings can be taken due to the gap forming between measuring scale and Hairline cross.
These Problems will not trouble you with the Original
tcl – i • CRACK MONITOR© TYPE TT 4 DISPLACEMENT
For more Information about Pirate Copies visit
www.rissmonitor.org
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