Troubleshooting | ® |
|
Problem/Concern | Causes/Solutions | Section to Consult |
Minus sign | Receiver is set on ground for depth | “Ultrasonic Function” in |
window. | reading, particularly at shallow depths, and | Receiver Section |
| the ultrasonics are not reset. Reset the | “Calibrating the Receiver” |
| ultrasonics. | |
| in Receiver Section | |
| Receiver has gone out of calibration. | |
|
| |
| Recalibrate using either |
|
| calibration. |
|
Roll positions sticking or not | Interference (squiggle in top left window | “Electrical Interference/ |
accurate. | will not blink regularly). | Background Noise Check” |
| If squiggle is blinking regularly, there may | in Signal Interference |
| Section | |
| be a transmitter or receiver malfunction. If | |
| possible substitute a different receiver. | |
| If you have a Mark III Receiver, conduct a | Receivers” in Operational |
| Tests Section | |
| ||
| “Temperature Overheat” in | |
| determination. | |
| Transmitter has been overheated (temp | Transmitter Section |
|
| |
| dot is black). |
|
|
|
|
Not getting a solid depth | Interference. | “Electrical Interference/ |
reading. | The approximate depth may be calculated | Background Noise Check” |
| in Signal Interference | |
| using the pitch information along with the | |
| Section | |
| distance between the FNLP and RNLP. | |
| “Running Off Pitch or | |
|
| |
|
| Calculating Depth from |
|
| Pitch” in Locating Section |
|
| “Calculating Depth Based |
|
| on Distance Between |
|
| FNLP & RNLP” in |
|
| Locating Section |
Bottom window depth/ | Transmitter is being exposed to tempera- | Transmitter Section |
distance flashes (with trigger | tures in excess of 60ºC (140ºF). Verify |
|
released). | that temp dot is not black before further |
|
| use of transmitter. |
|
Flashing squiggle (“~”) in | Transmitter has been exposed to tempera- | Transmitter Section |
bottom window. | tures in excess of 60ºC (140ºF). Verify |
|
| that temp dot is not black before further |
|
| use of transmitter. |
|
Solid squiggle (“~”) in bottom | With 5.0 and later series firmware, the | “5.0 Series Firmware |
window. | receiver will display the transmitter’s | Functions” in Receiver |
| predicted depth at the FNLP in the bottom | Section |
| window, along with a solidly illuminated | Locating Section |
| squiggle, when the trigger is held in. Pre- | |
|
| |
| 5.0 series firmware will not do this. |
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66 | DigiTrak® Mark III Operator’s Manual |
