33
beam in millimeters at Nail 1 and Nail 2. Designate the elevation at Nail 1 as “h1”, at Nail
2 as “h2”.
4
Set X-axis grade to 1.000%. Again, read the elevation of the laser beam in millimeters at
Nail 1 and Nail 2. Designate these elevations as “h3” at Nail 1, and “h4” at Nail 2.
5
Using the millimeter elevation readings for h1, h2, h3 and h4, and converting the 30mm
distance between Nail 1 and Nail 2 to 30000mm, complete the equation below.
If the calculated result is the range of 0.990% - 1.010%, the instrument is within specifica-
tions.
Ｘ
ｒｐｍ
１００
ＭＡＮＵ
×
ＰＯＷＥＲ
％
ＯＮ
ＥＮＴ
Nail 1
Nail 2
x(%)= (h2-h4) - (h1-h3) ✕ 100
30000 (mm)
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