Vaisala vLog 4.5 - Manual (Page 119)

Glossary
Vaisala Veriteq vLog 4.5 113
Secure
The status of an on-screen or printed graph file (.spg) that
has been created in vLog using data from a VL-Series Data
Logger. Although vLog displays graph files produced from SP
data loggers, they are labeled Not Secure. Only VL-Series
loggers produce secure files.
Serial port
The communications port to which you can attach devices
such as a modem, mouse, or serial printer to the computer.
The serial communication ports on the computer are
commonly referred to as COM1, COM2, COM3, and so on.
Serial ports exchange data sequentially, one unit at time.
Stability
The ability of a sensor or measurement instrument to
maintain its performance characteristics over a specified
period of time
Thermistor
A temperature-sensing element (a thermally-sensitive
resistor) composed of sintered semiconductor material that
exhibits a large change in resistance in proportion to a small
change in temperature. The relationship between
temperature and resistance is approximated for most
thermistors by the Steinhart-Hart equation.
Traceable
Capable of being traced back to a recognized measurement
standard or reference
Transfer
The term used when the software makes a copy of the data
contained in a connected data logger. The transfer process
creates a file on the PC but does not affect or delete the data
on the logger. Other terms commonly used to describe the
transfer process are download, upload, backup, or copy.
Transfers can be performed one logger at a time or in
batches.