Nivetec Echo Smart Series, Руководство по эксплуатации и установке

Страница: 41 / 73

- Page 32
-
7.3.2. Signal Waveform Symbols

The Down Arrow points to the current Track (See Section 7.2). This position
corresponds with the Current Measurement.

The Right Arrow indicates that a signal meeting tracking criteria is located
outside the Gate, to the right. The measurement will only be affected by this signal
if it persists for repeated updates.

The Left Arrow indicates that a signal meeting tracking criteria is located
outside the Gate, to the left. The measurement will only be affected by this signal
if it persists for repeated updates.
! ! The Double Exclamation Mark indicates that the current signal is insufficient
for tracking purposes. The Current Measurement will be held until sufficient signal
returns. An Echo Loss message will accompany the output measurement on the
Controller if it persists longer than the Echo Delay setting. Loss of Echo will be
reported on the 4-20mA circuit if the Loss of Echo parameter has been activated
(See 9.2.16-18).