OTT Flo-Dar Manual Del Usuario página 22

Figure 17 Vertical alignment with extended depth sensor
1 Spacer
Measure the sensor offset
The sensor offset is the distance from the top of the frame to the bottom
of the pipe or channel. This distance will be entered into the software
and is necessary for accurate flow calculations.
If the optional extended depth sensor is installed on the wall without the
extended frame, the sensor offset is the distance from the surface of the
extended depth sensor to the bottom of the pipe or channel.
Items to collect:
• Rod
• Tape measure
1. Put the rod in the bottom of the pipe or channel and align it vertically
with the frame. Refer to Figure
2. Make a mark on the rod to identify the location of the top of the
sensor frame.
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3. Measure the distance from the bottom of the rod to the mark. This is
the sensor offset.
Note: If it is not practical to measure to the bottom of the pipe, measure the
distance from the crown of the pipe to the top of the frame. Refer to
Add this distance to the pipe diameter to get the sensor offset. Sensor offset =
pipe diameter + distance from crown of the pipe to the top of the frame
Figure 18 Sensor offset
1 Distance from interior crown of pipe
to top of frame
2 Pipe diameter
Figure
3 Sensor offset
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