TM 5-6675-330-12&P
NOTE:
Instrument has been calibrated using prisms having
a 30mm offset
EXAMPLE 1
Assume the following field readings:
From X to Y = 39.939m
From Y to X = 39.941m
Average = MA = 39.940m
From Y to Z = 59.939m
From Z to Y = 59.941m
Average = MB = 59.940m
From X to Z = 99.939m
From Z to X = 99.941m
Average = MC =
TOC =
TOC =
TOC =
99.940m
MC – (MA + MB)
99.940–(39.940 + 59.940)
+ 60mm (see decal on instrument)
EXAMPLE 2
From X to Y = 40.039m
From Y to X = 40.041m
Average = MA = 40.040m
From Y to Z = 60.039m
From Z to Y = 60.041m
Average = MB = 60.040m
From X to Z = 100.041m
From Z to X = 100.039m
Average = MC =
100.040m
TOC = Mc – (MA + MB)
or
TOC = 100,040–(40,040 + 60.040)
TOC = –0.040m
TOC = –40mm [see decal on instrument)
If the peg test has been run to verify the TOC as
stamped on the instrument (assuming the use of
30mm prisms), verify or change accordingly.
If the peg test has been run to establish the TOC
using other than 30mm prisms, the new TOC should
be used in place of factory established TOC.
To enter a different TOC see pages 13-14 for
instructions.
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