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LEVELtrol-II Installation & Operating Instructions
Custody Transfer
Weights and Measure metering codes often specify several requirements for instruments and
mechanisms to prevent and track changes in the setup of an instrument which may be used in
the commercial sale of goods. The LEVELtrol-II tracks changes via the Audit Trail.
Data Logger
The capturing of information for later use and the mechanism for specifying the conditions
where a capture should be made.
DC Output / Excitation Voltage
An on-board DC power supply used to power peripheral sensors. The LEVELtrol-II offers an
excitation voltage of 24VDC when powered by AC voltage.
Dec Places
The number of digits to the right of the decimal point.
Default Value
The value to be used by the instrument if a sensor failure or out of ranch signal is detected.
Descriptor
A label assigned to describe a measurement.
Device ID
A numeric identifier for a particular LEVELtrol II's serial communication port.
Discharge Location
The distance between the discharge location and the bottom of the tank.
Error History
An automatic recording of the individual errors which have occurred in the instrument.
Expansion Factor
See C-Factor
EZ Setup
A utility that provides for rapid configuration of an instrument. The LEVELtrol-II EZ Setup
provides the following:
1) Prompts the user for only critical information.
2) Automatically sets specifications to common uses.
After following the EZ Setup procedure, the unit will be operational to perform the basic
measurement. The setup can be further customized using the setup menus.
Fluid Name
Text used to describe the type of fluid as a name.
Follow, Alarm
Alarm relays which are non latching and whose output state is based solely on the comparison
of the current process value and the alarm setpoint (trip point).
Function Key (Direct Access Key)
A key on a push-button panel or keyboard (whose function is described by the key label) used
to perform an instrument function or special routine.
Handshake
A means of controlling the information flow between two pieces of equipment to prevent the
sending device from transmitting information at a rate faster than what can be accepted by the
receiver.
High Scale
The engineering value at a full scale signal.
12. Glossary Of Terms (Continued)
