Step 2
Step 3
Step 4
Step 5
Step 6
Position theodolite, transit or laser level about 10 feet [3m] from outside perimeter of reflector (see Figure 62).
Line of Sight | Steel Rule |
|
(0.0° Elevation) |
| |
| Pointed Measuring Rod | |
| Increment | |
| 6’ (1.8 m) | |
| ||
| Reflector | |
|
| |
Theodolite, |
|
|
Transit or | Reflector |
|
Laser Level | Diameter Setting Band | |
| Turn Back | |
Approx. 10 Feet (3 m) |
| |
Shim Stack - Not |
| |
Shown for Clarity | Temporary Support | |
|
| 12 Inch (300 mm) |
Figure 62
Level theodolite/transit/laser level. If using theodolite, position view scope at 0.0 degrees elevation, lock down elevation adjustment.
Site through theodolite/transit to determine where on measuring rod to place steel rule onto rod to allow visibility of steel rule through theodolite/transit/laser level at all (6) six measurement locations around reflector. Securely fasten both ends of steel rule to mea- suring rod with adhesive tape (see Figure 62).
Temporary supports should be positioned as shown in Figure 63, close to but not inter- fering with diameter setting bands.
Referring to Figure 63, mark the measuring location at each of the six temporary sup- port locations with a small dot (use felt tip marker) to be used as reference point in sub- sequent measurements.
Reflector
Turnback
Outside Edge |
|
of Reflector |
|
| Diameter Setting |
| Band (Hidden) |
Setting Band | Reflector Seam |
Hardware (2) |
|
Shim Stack | Seam Hardware Not Shown for Clarity |
| |
(as required) | Measurement Location |
| |
Temporary | Directly Above Shim Stack |
| |
Support |
|
Figure 63
52 | Installation Procedures |
