Vaisala vLog 4.5 - Manual (Page 117)

Glossary
Vaisala Veriteq vLog 4.5 111
GMP
An acronym for Good Manufacturing Practices; these are the
regulations found in the CFR, parts 210 and 211
Graph file
A file that is created to display the data from one or more
Logger files. Graph files retain formatting information such as
graph title, zoom levels, Y-axis scaling and Logger file data
and are identified by their .spg extension (for example,
LAB_1.spg)
L–Q
Local time
A value equal to the current time used at a particular location.
A relative indicator of time meaningful only if Time Zone
Information is also known, Local Time contrasts with UTC
Time, an absolute time reference. The software records
Local Time and UTC Time in each Logger file.
Logger file
A file that is created after transferring a logger’s data to the
PC. The file contains the collected readings (from all active
channels) for the transferred logger including the logger’s
description, model number, serial number, firmware version
number, file description, and Local time. Logger files are
identified by their .spl extension (for example,
PRIMARY_GAS_FLOW.spl). Logger files cannot be viewed
directly—you have to insert the Logger file into a Graph file
before the data is displayed as a graph
NIST
An acronym for the National Institute of Standards and
Technology
R–T
Range
Normal operating limits, specified by the lowest calibration
point to the highest calibration point.