Digitrex 3-3000-00a-F manual How a Transmitter Works, BatteriesAntenna Index Slot Back Front

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®

DIGITAL CONTROL INCORPORATED

Transmitter

BatteriesAntenna

Index Slot

Back

Front

DigiTrak Transmitter

A transmitter (also referred to as a sonde, beacon, or probe) is a device that emits electromagnetic signals at radio frequencies and fits inside the tool housing. It transmits information regarding its location, position, and heading. The transmitter emits signals that the receiver “hears” and converts into the information shown in the three display windows. The range of a transmitter depends upon its type. For more information, see the DigiTrak Transmitter Specifications table at the end of this section.

NOTE: The range of any transmitter with any DCI receiver is dependent upon the amount of inter- ference at a job site. The range decreases as interference increases.

How a Transmitter Works

The transmitter emits two types of signals, both at approximately 33 kHz. The first signal is the depth or signal strength. The second signal sends pitch, roll, and battery and temperature status information. The pitch/roll signal has a wider bandwidth than the depth signal and occasionally may be more susceptible to interference. For more information about interference and transmitter signal interruption, see the Signal Interference Section, the Troubleshooting Section, and “Electrical Interference/Background Noise Check” in the Signal Interference Section.

With the trigger released, verify that the transmitter is sending adequate pitch and roll information to the receiver—the top left window of the receiver will flash a squiggle (“~”) every 2.5 seconds. It is important to wait for two consecutive squiggles with the same pitch and roll information before relying on the infor- mation to give any steering commands. Waiting assures confirmation of an accurate reading. As the transmitter reaches its maximum range, the squiggles will become less frequent than every 2.5 seconds. For further information on pitch/roll and the squiggle, see the Operational Tests Section (particularly “Transmitter Tests”).

Transmitter pitch is displayed in percent slope as 1% increments or 0.1% increments (if using a sensitive- pitch transmitter) in the top left window of the receiver with the trigger released. For more information see “Sensitive-Pitch Transmitters” later in this section.

DigiTrak® Mark III Operator’s Manual

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Contents Mark III Directional Drilling Locating System Trademarks Table of Contents Remote Display System Remote Telemetry License Limited Warranty Safety Precautions Vii RememberViii Dear CustomerIntroduction Basic DigiTrak EquipmentDigiTrak Directional Drilling Locating System Basic DigiTrak Operation IntroductionTechnical Support 3000-00b-F Showing Display Window Icons ReceiverDigiTrak Receiver Side View DigiTrak Receiver Top ViewDisplay Window Icons ReceiverTo turn the receiver on Depth Measurement Units Receiver Battery Voltage LCD TestFirmware Version Remote Channel Setting On/OffReceiving the Transmitter’s Signals Clicking vs. Holding the TriggerTo turn the receiver off To change the channel Changing the Receiver’s Channel SettingTo change the measurement units Battery Status Display for Receiver and TransmitterReceiver Battery Status Voltage Remaining Changing the Depth Measurement Units English vs. MetricTemperature Range Ultrasonic FunctionUse of Ultrasonic Measurement To Determine Actual Depth Zeroing the Ultrasonics Determining 1-Point Calibration Signal Calibrating the ReceiverDo not calibrate if To calibrate newer receivers Confirming Proper CalibrationReceiver Depth Antenna Plumb Line Using Depth Antenna Plumb Line to Mark Locate PointsSeries Firmware Functions Finding Firmware VersionRunning Time Meter Display Procedure for Observing the Predicted DepthDigiTrak Transmitter TransmitterHow a Transmitter Works BatteriesAntenna Index Slot Back FrontTransmitter Temperature DisplayBattery Status Display Temperature OverheatSleep Mode Automatic Shutoff Verifying Proper Fit of Transmitter in HousingHow Transmitter Should Fit in Housing Front End Cap of Transmitter Showing Temp Dot and Index Slot To install a transmitter in the housingTips for drilling with a sensitive-pitch transmitter Locating the TransmitterSensitive-Pitch Transmitters Transmitter as an InclinometerRange Type Rating SpecificationsModel Type Length Signal Battery Temp Color Transmitter Serial NumbersRemote Display Unit Remote Display SystemOn/Off and Setting the Channel Transmitter Temperature and Battery StatusRemote Display Setting up DigiTrak Receiver For Remote Steering Using DigiTrak Receiver for Remote SteeringRemote Steering ~ I5 DataLog CapabilityDigiTrak Battery Charger Battery ChargerBattery Charger Control Panel Battery ChargerCharging a Battery Battery IsSetup for Discharging a Battery Manually Conditioning a Battery in the ChargerConditioning a Battery Manually Indicator Lights and Meanings3000-00f-F System Operating Instructions Start-up ProcedureShutdown Procedure Moisture and Temperature AvoidanceOptimal Operating Temperatures General MaintenanceSystem Operation Electrical Interference/Background Noise Check Signal InterferenceSuggestions for Dealing with Interference Signal InterferenceOperational Tests Self-Test for Mark III ReceiversReceiver Balance Check Operational Tests Receiver Gain TestTransmitter Tests Transmitter Distance Color Transmitter Signal Strength ValuesTransmitter Salt Water Range Test Current Draw TestTransmitter Model Average Current mA Transmitter Battery Tests 3000-00i-F Locate Points Fnlp & Rnlp and Locate Line PLL Locating ModeLocating Mode Trigger Held LocatingLocating Handling the ReceiverSide View Finding the Rear Negative Locate Point Rnlp from the Drill Using Plus/Minus Indicators for LocatingUsing Plus/Minus +/- Indicators for Locating Locating the Transmitter from the DrillFine Tuning Rnlp Location Walking Toward Left Plus Changes To Minus DrillFinding the Positive Locate Line PLL from the Drill Finding the Front Negative Locate Point Fnlp from the Drill Fine Tuning Fnlp Walking Toward LeftFinding the Transmitter and Its Depth Method for Confirming Position Locating the Transmitter from the FrontMethod for Confirming Position Locating the Transmitter from the FrontLocating on the Fly Off-Track LocatingOff-Track Locating Splitting the Front and Rear Negative Locate Points Four-Turn TechniqueTo find the Fnlp or the Rnlp Pitch Divider Calculating Depth Based on Distance Between Fnlp & RnlpCalculating Depth from Pitch Running off Pitch or Calculating Depth from PitchElliptical Shape of Transmitter Signal Field Transmitter’s Signal ShapeAntenna Configuration Signal ReceptionFront and Rear Negative Locate Points Positive Locate Line Above TransmitterOrientation of Field Lines with Respect to Antennas 3000-00j-F DigiTrak Cable Transmitter System Cable Transmitter SystemLabel Indicating Cable-Ready Remote Display Cable TransmitterCable Transmitter Power Supply Connected to Remote Display Power SupplyCable Transmitter Adding Batteries in Series Remote Display with Cable Transmitter CapabilityOperation Viewing the Cable System Battery StatusProblem/Concern Causes/Solutions Section to Consult TroubleshootingTroubleshooting Troubleshooting Troubleshooting Troubleshooting 3000-00l-F Glossary Glossary Set the Ultrasonics Start-up = Power-up = Boot-upRemote Display RollUltrasonic Transducers Ultrasonic FunctionAppendix Percent Depth Increase 100 AppendixPercent of Grade to Degree Conversions Pitch Transmitters Percent Degree Degree to Percent of Grade Conversions Pitch Transmitters Degrees Percent 10.0 Calculating Depth Based on Distance Between Fnlp and Rnlp 3000-00n-F Remote Telemetry License 3000-00o-F Limited Warranty Warranty Claim Procedures
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