Greenlee BLL-200 Manuel D'instructions page 14

Operation (cont'd)
Depth Measurement Procedure
When the receiver and transmitter are used together (Trace Mode), the BLL-200 can estimate
the depth of the buried line.
1. Trace the buried line.
2. Fully extend the antenna and clamp it into place. Set the end of the antenna on the
ground. Hold the receiver so that the shaft of the antenna is vertical.
Note: If measuring the depth of the buried line with the receiver less than 15 meters
(50 feet) from the transmitter, reflected signals may produce an inaccurate measurement.
3. Press and hold the Signal Reset button. The LCD will display the depth in feet and tenths
of feet.
4. While still pressing the Signal Reset button, slowly scan from left to right. The lowest
reading is correct.
• Fully extend antenna.
• Rest antenna on ground.
• Hold antenna vertical.
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• Press and hold Signal Reset.
• Scan from left to right.
• Lowest reading is correct.