HAMAR LASER L-708, Operation Manual

Page: 29 / 33

26
Plotting Measured Data
The following chart and calculations are provided to help record, calculate, and plot bore diameter data.
The chart can be expanded to record as many measurement points as are required. Formulas for
calculating offsets and diameter are provided, as well as a sample plot of readout data (see Figure 20 on
Page 27).
LOCATION NORMAL INVERTED OFFSET DIAMETER
Reference Location
Measuring Point 1
Measuring Point 2
Measuring Point 3
Measuring Point 4
Measuring Point 5
Measuring Point 6
Figure 19 --
Chart for Readout Data
Reference Diameter TCE (RDT) = Normal R Inverted Reading
2
Measured Diameter TCE (MDT) = Normal R Inverted Reading
2
Difference in Diameter = Reference Di ((MDT – RDT) × 2)