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A: Technical Reference
Near Range (Blanking)
Note: Auto
Near Range allows you to set a distance in front of the antenna, within which any echoes will be ignored.
Echo confidence
Echo confidence is an internally generated numeric rating given to an echo based on its relative strength, area, and height.
Loss of Echo (LOE)
A loss of echo (LOE) occurs when the calculated measurement is judged to be unreliable because the echo confidence value has dropped below the echo confidence threshold. The LOE timer starts running, and if the LOE condition persists beyond ten minutes (the time limit set by the LOE timer) the Unreliable Echo indicator replaces the Reliable Echo indicator.
Reliable Echo indicator |
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| Unreliable Echo indicator |
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While LOE is pending the x flashes, alternating with the two horizontal bars. When LOE becomes active, the x becomes solid and the auxiliary display shows fault code S: 0.
Upon receiving a reliable echo, the loss of echo condition is aborted, the Reliable Echo indicator reappears, and the reading returns to the current level.
LOE Timer
The LOE timer determines the time (in minutes) to elapse after the last valid reading before
Fail-safe Mode
Page | SITRANS LR 460 – INSTRUCTION MANUAL | 7ML19985JM01 |