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12. Rotate shaft (or move sensor) so that
sensor is pointed toward non-
reflective surface.
13. Adjust distance from shaft (1 to 4
inches) and, if required, angle to shaft
(up to 45°) until the gap voltage is +0.5
Vdc or less. See Figure 1-4.
Figure 1-4: Optical Keyphasor Signal Output Voltage
Set the sensor at an angle to the shaft
to avoid unwanted reflections from
shiny shaft surfaces. Reflections from
the reflective tape beaded surface are
14. Rotate shaft or move sensor slightly
until it points toward the reflective
tape. The voltage reading should be
at least +5 Vdc. If not, move sensor
closer to tape until you read +5 Vdc or
greater. Then, repeat steps 12
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Section 1 - Introduction
NOTE
still received.
7
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