25
constant after strict measurement (e.g. in standardization site for
baseline being measured by authenticated units).
3.13 Selecting Data File
The instrument needs large data and creates large data when it is
operated. This data needs to be storied in the system files of the
instrument as a file form. It‘s a good habit that selecting the
measuring working files before working. Please refer to the related
description.
The file types are listed as below:
MEA= Measurement File, working for storing data.
COO= Coordinate File, used for retrieving coordinate.
COD= Code File, used for retrieving code.
LSH/LSV = Defined horizontal /vertical alignment file, working
for staking out roadway.