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User's Manual

ManualsBrandsDigital Control ManualsElectronicsF5Dp 19/12, F5Dp 12/1.3, F5DLp 19/12
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Transmitter
DigiTrak
®
F5™ Operator’s Manual 37
Temperature Status and Overheat Indicator
All DigiTrak transmitters are equipped with an internal digital thermometer. The transmitter temperature is
displayed on the bottom right of the receiver and remote display screens next to the transmitter
temperature symbol
. 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.
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.
If the temperature reaches 118°F (48°C), the transmitter is becoming dangerously hot. The thermometer
icon will change to show that the transmitter is reaching a dangerous temperature,
. The transmitter
must be cooled immediately or it will be damaged.
To cool the transmitter, stop drilling and retract the drill bit a few feet and/or add more drilling fluid.
Transmitter Temperature Warning Tones
The audible tones emitted by the F5 receiver and remote display to indicate increases in the transmitter
temperature are summarized in the table below.
Temperature Warning Tones
Below 61°F (16°C) No tones for temperature increases.
61–97°F (16–36°C) Double-beep sequence (beep-beep) for every 4°C increase in temperature.
104–111°F (40–44°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 irreversible 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 condi-
tions; irreversible damage may have already been done.
Above 176°F (80°C) Transmitter shuts down.
180°F (82°C) FS and FC transmitter overheat indicator (temp dot) turns black (see below).
220°F (104°C) Long-range and extended long-range transmitter overheat indicator (temp dot)
turns black (see below).