User's Manual
Table Of Contents
- Safety Precautions and Warnings
- Dear Customer:
- Introduction
- Receiver
- Transmitter
- Remote Display
- Battery Charger
- Locating
- The Target Steering Function
- Appendix A: System Specifications and Maintenance Requirements
- Appendix B: Projected Depth Versus Actual Depth and the Fore/Aft Offset
- Appendix C: Calculating Depth Based on Distance Between FLP and RLP
- LIMITED WARRANTY
Transmitter
38 DigiTrak
®
F2™ Operator’s Manual
Temperature Updates and Overheat Indicator
F2 transmitters are equipped with an internal digital thermometer. The internal temperature of the trans-
mitter is sent to the receiver and remote display every 2 seconds. This temperature is displayed on the
bottom right of the receiver and remote display screens next to the transmitter temperature symbol
.
NOTE: Because the digital thermometer is inside the transmitter, temperature increases due to
external drilling conditions will take time to transfer to the transmitter. Any increase in
temperature should be dealt with quickly to avoid irreversible damage.
Normal drilling temperatures range from 64°F (16°C) to 104°F (40°C). You should suspend drilling when
temperatures exceed 95°F (35°C) to permit cooling. Once the temperature reaches 104°F (40°C) the
thermometer icon will change to
display steam and it will flash: . At this point, the transmitter has become
dangerously hot and must be cooled immediately or it will be damaged.
To stop temperature increases and cool the transmitter, slow or stop drilling and/or add more drilling fluid.
Transmitter Temperature Warning Tones
The audible tones emitted by the F2 receiver and remote display to indicate an increase in the transmitter
temperature are summarized in the table below.
Temperature Warning Tones
Below 61°F (16°C) No tones for temperature increases.
61–90°F (16–32°C) Double-beep sequence (beep-beep) for every 4°C increase in temperature.
97–111°F (36–44°C) Two double-beep sequences (beep-beep, beep-beep) for every 4°C
increase in temperature. NOTE: Action is required to cool the transmitter.
118–133°F (48–56°C) Three double-beep sequences (beep-beep, beep-beep, beep-beep) for
every 4°C increase in temperature. NOTE: Cooling is critical to avoid ir-
reversible damage.
Above 140°F (60°C) Three double-beep sequences every 5 seconds on the remote display, and
every 20 seconds on the receiver. NOTE: Warning signifies dangerous
drilling conditions; irreversible damage may have already been done.
Above 183°F (84°C) Transmitter shuts down.
220°F (104°C) Transmitter overheat indicator (temp dot) turns black (see below).