Meaningful Meanings
Zero
Adjustment
The ability to adjust the display of a process or
strain meter so that zero on the display corresponds to a non-zero signal,
such as 4 mA, 10 mA, or 1 V dc. The adjustment range is normally expressed
in counts.
Zero Offset
1. The difference expressed in degrees between true
zero and an indication given by a measuring instrument.
2. See Zero Suppression
Zero Point
The electrical zero point where zero millivolts
would be displayed. Used in conjunction with the slope control to provide
a narrower range calibration.
Zero Power Resistance
The resistance of a thermistor or RTD element with
no power being dissipated.
Zero Suppression
The span
of an indicator or chart recorder may be offset from zero (zero suppressed)
such that neither limit of the span will be zero. For example, a temperature
recorder which records a 100° span from 400° to 500° is
said to have 400° zero suppression.
Zero
Voltage Switching
The making
or breaking of circuit timed such that the transition occurs when the
voltage wave form crosses zero voltage; typically only found in solid
state switching devices.
cont....
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