Section 11. Glossary
538
possibly damaging potentials, such as those produced by a nearby lightning
strike. Earth ground is the preferred reference potential for analog voltage
measurements. Note that most objects have a "an electrical potential" and the
potential at different places on the earth — even a few meters away — may
be different.
Term: engineering units
Units that explicitly describe phenomena, as opposed to, for example, the
CR3000 base analog-measurement unit of milliVolts.
Term: ESD
Electrostatic discharge
Term: ESS
Environmental Sensor Station
Term: excitation
Application of a precise voltage, usually to a resistive bridge circuit.
Term: execution interval
See scan interval
(p. 553).
Term: execution time
Time required to execute an instruction or group of instructions. If the
execution time of a program exceeds the Scan() Interval, the program is
executed less frequently than programmed and the Status table SkippedScan
(p. 512)
field will increment.
Term: expression
A series of words, operators, or numbers that produce a value or result.
Field
Final-storage data tables are made up of records and fields. Each row in a
table represents a record and each column represents a field. The number of
fields in a record is determined by the number and configuration of output
processing instructions that are included as part of the DataTable()
declaration.
Summary of Contents for CR3000 Micrologger
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Page 485: ...Section 8 Operation 485 8 11 2 Data Display FIGURE 110 Keyboard and Display Displaying Data ...
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