User's Manual

DIGITAL CONTROL INCORPORATED
DigiTrak F5 Operator’s Manual 9
Note If depth data does not display, you will need to obtain a reference lock
(“R”). See discussion under Finding the Front Locate Point (FLP) on
page 19.
2-Point Calibration (In Ground)
The 2-point calibration procedure is rarely needed. It requires you to obtain two
calibration points, one with the receiver placed on the ground and one with the
receiver raised 3 ft (or 1 m) above the ground. If you must calibrate with the
transmitter in the ground, use this procedure with caution.
1. With the receiver in locate mode, position the receiver directly above an approximately
level transmitter (see Locating on page 15 for instructions on aligning the receiver
directly above the transmitter and ensuring the transmitter is level).
2. Verify that the signal strength readings with the receiver on the ground and raised 3 ft
(or 1 m) above the ground are both between 300 and 950 points. If the signal
strength is too high with the receiver on the ground, lift the receiver until the signal is
within an acceptable range. The second point should then be measured 3 ft (or 1 m)
above that point. If the signal is too low, pull back to calibrate.
3. Verify that roll and pitch values are displaying on the receiver and that the transmitter
is sending a steady signal.
4. From the main menu, select Calibration, then the 2-point calibration option.
2-Point Calibration, Obtain 1st Point
5. Click the trigger to obtain the first calibration point. The calibration-in-progress screen
displays. Do not move the receiver.
6. Once the first calibration point is obtained, the second calibration point screen
appears.