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measure
measure
This procedure uses targets at known distances to calibrate the sensor’s accuracy. A wall or other large, flat
object is recommended for the long range target.
•
Point the sensor at a target at a known distance near the maximum range of the sensor, 25’ for a single
solid object (See Figure 4.1).
•
Adjust the Calibration value (mode 9) until the distance reading on the sensor matches the actual mea-
sured distance to the target.
•
Point the sensor at a target near the minimum measurement range, 1’ plus any Blanking distance (See
Figure 4.2).
•
Adjust the Distance Offset value (mode 10) until the distance reading on the sensor matches the actual
measured distance to the target.
•
Repeat previous two steps until no further adjustment is required.
• Calibration
NOTE
: Mode 17 will reset the LPU to factory default settings.
Figure 4.1
Figure 4.2
Should you have problems with your LPU-2127, here are some troubleshooting steps.
•
Check the received signal strength (See Figure 3.2 on page 5). If the signal strength is low, alternately
increase Pulses (mode 15) and Sensitivity (mode 13) until the signal strength improves.
•
Ensure Temperature Compensation (mode 11) is turned on.
•
Ensure AutoSense (mode 12) is turned on.
•
Ensure that Blanking (mode 14) is accurately set to account for any unwanted targets between the sen-
sor and the closest acceptable target.
• Trouble Shooting
