®
DIGITAL CONTROL INCORPORATED
Safety Precautions
and Warnings (Continued)
¾Prior to the start of each drilling run, test the DigiTrak System to confirm that it is operating properly and check that it is providing accurate drill head location and heading information (see Receiver Section) and accurate drill head depth, pitch, and roll information with the Transmitter inside the drill head.
¾During drilling, the depth will not be accurate unless:
•The Receiver has been properly calibrated and the calibration has been checked for accuracy so that the Receiver shows the correct depth.
•The drill head has been located correctly and accurately and the Receiver is directly above and parallel to the Transmitter in the tool underground or above the front negative locate point (FNLP).
•The Receiver
•The Receiver is kept level.
¾Interference can cause inaccuracies in the measurement of depth and loss of pitch, roll, or the Transmitter’s location or heading. The locating operator should perform an electrical interfer- ence check prior to drilling (see “Electrical Interference/Background Noise Check” in the Signal Interference Section).
•Sources of interference include traffic signal loops, invisible dog fences, cable TV, power lines,
•Interference with the operation of the Remote Display may also occur from other sources operating nearby on the same frequency, such as car rental agencies using their remote
¾Carefully review this Operator’s Manual and the DigiTrak training video and be sure you always operate the DigiTrak System properly to obtain accurate depth, pitch, roll, and locate points. If you have any questions about the operation of the DigiTrak System, please call DCI’s Customer Service Department at
REMEMBER
If you are having difficulty on the job, call DCI
DigiTrak® Mark III Operator’s Manual | vii |
