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Q: Why is the depth suddenly 18-24 inches (46-61cm) shallower?
A: This may be the result of having an ultrasonic measurement in the Receiver's memory and then setting the Receiver on the ground for a depth reading. Any time the Receiver's trigger is clicked (after the Receiver is on) it will measure its height above ground and display that elevation briefly in the bottom window. The Receiver will then subtract this height above ground measurement from the total electromagnetic distance from the transmitter, resulting in a depth below ground reading in the bottom window. The ultrasonic function allows the Receiver to track the transmitter's depth below ground while being held comfortably above ground, achieving separation from interference sources such as rebar. When the Receiver is set on the ground and the button is clicked, you will hear three beeps and you will see a zero in the bottom window (zeroing the ultrasonics); this means that the Receiver will subtract "0" from the total electromagnetic distance from the transmitter. |
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Q: What if the depth window displays 297 - 305 instead of 119 - 121 after calibration?
A: This would indicate that the depth measurement mode in the Receiver has been changed from inches to centimeters. To change the depth measurement mode from centimeters to inches, first turn the unit off by pulling out the battery. Instead of clicking the trigger to turn on the unit, squeeze and hold the trigger for approximately 12 seconds and watch the top right window. A "2" indicates depth measurement in centimeters, a "1" indicates depth in inches. The Receiver will make a tone during the 12 seconds and will then beep 3 times and change to the other setting. When the desired setting is displayed, let go of the trigger and the unit will continue its boot up process and be ready for use. |
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Q: What if the Remote Display has dashes across the windows?
A: Typically this indicates that the Receiver is set on channel zero which means that the telemetry has been shut off and the Receiver will not send a signal back to the Remote Display on the drill. This could also mean that the Receiver is set to a different channel than that on the Remote Display. It could also mean that interference is interrupting the signal before it reaches the Remote Display or the line of sight between the Receiver and the Remote Display may be obstructed (by such things as buildings, hills, or dense vegetation). It is also possible that your Receiver is not equipped to send a signal back to a Remote Display. To confirm that your Receiver is "remote capable" observe the back of the Receiver, if there is a large orange arrow, your Receiver has "remote capability" and it will send a signal to the Remote Display at the drill. It is also possible that the telemetry of the Receiver is not compatible with the telemetry of the Remote Display. Digital Control manufactures 3 different types of telemetry in order to meet the Federal Communication Commission's (FCC's) regulations for the different countries where we sell our equipment. The FCC information is located below the serial number on the Receiver and the Remote Display, verify that they match. For more information on changing the channel on the Receiver to match the Remote Display, view the front panel of the Receiver or contact Customer Service Technical Support at 800 288 3610. If still having difficulty getting a signal back to the Remote Display at the drill and if possible, swap another Receiver or Remote Display to determine which piece of equipment is problematic. |
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Q: Why is there a minus sign in the bottom window?
A: This could indicate that the Receiver has gone out of calibration. It could also occur if drilling at shallow depths AND the Ultrasonics have been set to subtract a height-above-ground distance and the Receiver is set on the ground for the depth reading. If checking the ultrasonics doesn't eliminate the minus sign, recalibrate using either the 1 Point or 2 Point Calibration. It is possible to recalibrate the Receiver when the Transmitter is below ground using the 1 Point method, but only if the transmitter is shallower than 10ft. In order to complete the 1 Point method with the Tx below ground, you must know the signal strength of the Tx at 10ft. If the Tx is deeper than 10ft then a 2 Point Calibration will be necessary. Contact Technical Support. |
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Q: What if the display numbers on the Receiver or Remote Display are erratic?
A: This may be due to interference. Erratic information could also be due to moisture inside the equipment, or, in the case of the Remote Display, a low battery. Please call Digital Control for information about field methods for "drying" out the equipment. The equipment does not have to be dropped in water for moisture to be inside, it could be due to condensation which occurs when the equipment is repetitively moved from a warm environment to a cold one or vice versa. |
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Q: Why are the pitch and roll windows blank?
A: If your Receiver is not displaying pitch, roll, (or the Transmitter's battery and temperature status after releasing the trigger when tracking the tool), it is likely that there is interference interrupting this signal from the Tx, or the Receiver may be out of range of the Transmitter. If possible try another Receiver for comparison or a Tx with stronger signal strength. It is possible that the Receiver may have a bad pitch/roll board. |
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Q: Why are the depth numbers erratic?
A: Typically this is caused by interference but could also be due to a bad depth board in the Receiver or a bad Tx. If possible, try another Receiver or Transmitter to determine which piece of equipment may be problematic. The approximate depth may be calculated using the pitch information. It is also possible to determine the approximate depth based on the distance between the Front and Rear Negative Locate Points; contact Customer Service. |
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Q: What if all the Receiver's windows blank out?
A: The Receiver has shut itself off to conserve battery life; this occurs when the Receiver has not been used for 15 minutes. Simply click the button to turn the Receiver on (all calibration data will be preserved). If the unit will not stay on, the battery may be dead. |
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Q: What is the "squiggle" in the top left window?
A: This squiggle indicates that the Receiver has received the Transmitter's roll/pitch signal. The squiggle should flash in the top left window every 2.5 seconds. However, as the transmitter approaches its maximum depth, the flashing sequence will become less frequent. |
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Q: What if the squiggle does not flash?
A: This is normally due to interference. Losing the squiggle could also be due to a bad transmitter or a bad pitch/roll board in the Receiver. If possible swap a different Receiver or Transmitter to determine which piece of equipment is problematic. |
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Q: Why is the clock inaccurate or why does it stick?
A: This can result from interference which can be verified if the squiggle in the top left window is not blinking every 2.5 seconds. If the squiggle is blinking regularly the problem could be a bad roll sensor in the Transmitter or the roll/pitch board in the Receiver. Again, if possible, swap another piece of equipment to determine where the problem is coming from. If you have a MIII Receiver it is possible to conduct a Self-Test to determine if the roll/pitch board is bad. Verify that the temp dot on the Transmitter is not black. For more information, contact Technical Support. |
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Q: Why don't the Ultrasonics work?
A: There is probably an obstruction such as mud or debris in one or both of the Ultrasonic holes on the bottom of the Receiver. It doesn't take much of an obstruction for the Ultrasonics to fail. When removing the debris or cleaning the Ultrasonic holes take extreme care not to puncture the metal inside the ultrasonic holes. If you still cannot get the Ultrasonic function to perform properly, call Technical Support. |
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Q: What does "1999" in the bottom window mean?
A: "1999" in the bottom window means that the Receiver is not receiving the Transmitter's signal. This could be due to dead batteries in the Transmitter, batteries loaded backwards (put positive end in first), the Transmitter went to sleep (wake it up by spinning the drill string), a broken Tx, or the Tx is out of range of the Receiver. If you know the Tx is not sending a signal, then the Receiver should display 1999 in the bottom window; however, it might display a number that can range from 200 to 700 even when the transmitter is turned off or out of range. This would indicate that the Receiver is "hearing" enough background noise to convert that signal into a depth reading. |
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Q: What if the depth readings seem incorrect?
A: This could be caused by interference, ultrasonics improperly set, bad calibration, a weak signal from the transmitter, the Receiver not being directly over the transmitter when taking a depth reading, or a bad depth board in the Receiver. |
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Q: Why is the clock rolling?
A: This can be due to interference or a bad roll sensor. If the squiggle in the top left window is not flashing at regular intervals of 2.5 seconds, it indicates that something is interfering with the roll/pitch signal from the transmitter. If the squiggle is not flashing regularly (every 2.5 seconds) it is likely that interference is interrupting the transmitters signal from reaching the Receiver. If possible, swap another transmitter or Receiver to confirm problem. |
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Q: Why don't the +/- signs display a "crisp" flip when attempting to find the Front/Rear Negative Locate Points?
A: This is typically due to interference from a below ground source. As the Transmitter's depth increases, you may find a Locate Point on the left side of the drill string and one on the right side. When this occurs the distance is split and the true Front or Rear Negative Locate Point is found. For more information, contact Customer Service Technical Support at 800 288 3610. |
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