Digitrex 3-3000-00a-F manuel d'utilisation

Mark III Directional Drilling Locating System Operator’s Manual D IGITAL C ONTROL I NCORPORATED DCI Headquarters 19625 62 nd Ave. S., Suite B-103 Kent, Washington 98032 USA Tel 425 251 0559 / 800 288 3610 Fax 253 395 2800 E-mail DCI@digital-control.com www.digitrak.com DCI Europe Kurmainzer Strasse 56 D-97836 Bischbrunn Germany Tel +49(0) 9394 99[...]

D IGITAL C ONTROL I NCORPORATED ® 3-3000-00-F © 1999-2006 by Digital Control Inco rporated. All rights reserved. July 2006 Edition. Trademarks The DCI logo, Cabl eLink ® , DataLog ® , DigiTrak ® , Eclipse ® , iGPS ® , Intuitive ® , look-ahead ® , SST ® , target-in- the-box ® , and Target Steering ® are U.S. registered trademar ks and Du[...]

® D IGITAL C ONTROL I NCORPORATED T able of Contents SAFETY PRECAUTIONS AND WARNIN GS .................................................................................. vi INTRODUCTION ................................................................................................................... ...........1 Basic DigiTrak Equipment ..........[...]

D IGITAL C ONTROL I NCORPORATED ® T able of Contents (Cont.) REMOTE DISPL AY SYSTEM ........................................................................................................ 25 On/Off and Setting the Ch annel ........................................................................................ 26 Transmitter Temperature and Batte[...]

® D IGITAL C ONTROL I NCORPORATED T able of Contents (Cont.) LOCATING (Cont.) Calculating Depth Based on Dist ance Between FN LP & RNL P ....................................... 52 Running Off Pitch or Calcul ating Depth fr om Pitch ........................................................... 53 Transmitter’s Si gnal Shape ....................[...]

D IGITAL C ONTROL I NCORPORATED ® Safety Precautions and W arnings Important Note: All oper ators must read and understand the following Safety Precautions and Warnings before us ing the DigiTr ak Locating System. 1 Serious injury and death can result if underground drilling equi pment makes contact with an underground utility such as a high-volta[...]

® D IGITAL C ONTROL I NCORPORATED Safety Precautions and W arnings (Continued) ¾ Prior to the start of each drilling run, test the DigiTrak System to conf irm that it is operating properly and check that it is providing accurate drill head location and heading inform ation (see Receiver Section) and accurate drill head depth, pitch, and roll info[...]

D IGITAL C ONTROL I NCORPORATED ® Dear Customer: We would like to thank you fo r choosing the DigiTra k Locati ng System. We are proud of the equipment that we have bee n designing and building in Washington State since 1990. We believe strongly in provid ing a unique, high-quality product and standing behind it with superior customer service and [...]

® D IGITAL C ONTROL I NCORPORATED Introduction Remote Display DataL og Module Rece iver Ba t t er y C h a r ge r Tr ansm itt ers Cable Tran smitte r DigiTrak ® Directional Drilling Locating System The DigiTrak Locating System is used duri ng horizontal directional drilling oper ations for locating and tracking the transmitter within the tool. Thi[...]

Introduction ® the optional cable transmitter, which re quires a 12V to 28V DC system. For grav ity sewer installations, DCI manufactures a sensiti v e-pitch tran smitte r that measures pitch in 0.1% increments. Remote Display – The DigiTrak Remote Display unit enables the drill operator to view the transmitter’s pitch, roll, depth, predicted [...]

® Introduction Operational Tests – Before drilling and during ope ration it is necessary to check the follo wing: proper calibration, correct ultrasonic m easurement, status of battery power, transmitte r tem perature, and signal interference problems. (see Operational Tests Se ction) Locating – The DigiTrak System is used to locate t he trans[...]

Introduction ® Notes 3-3000-00b-F 4 DigiTrak ® Mark III Operator’s Manual[...]

® D IGITAL C ONTROL I NCORPORATED Receiver Front P an el Depth/Lo cating Antenn a Screws Temperatu r e & D ist anc e Conversion Cha rt Handle Speaker Trigger Di sp lay Windows Pitch/ Roll Antenn a S crews Back P anel Battery Com partment DigiTrak Receiver – Side View The DigiTrak Re ceiver is a hand-held u nit used for loca- ting and trackin[...]

Receiver ® Display Window Icons Trigger down – Trigger is released; display windows sho w pitch, roll, and distance/depth of the transmitter. +% - % Pitch – Numbers from 0% to ±100% sh ow the in clination of the transmitter with respect to horizontal; 100% represents a 45° angle (top left window, trigger down). 12 3 9 6 Roll – Numbers from[...]

® Receiver respectively). If there is an orange arrow below the serial number, then it is a remote receiver, and it is capable of sending a signal to a remote display unit at the drill. All receivers ca n be upgraded to remote capability. The Mark III Receivers (serial numbers greater than 4676) are also equipped wit h a backlit display for dim vi[...]

Receiver ® The depth measurement units (centimeters or inches) and remote c ha n ne l s e tt i n g c an be c ha n ge d only during start-up (see “Chan ging Depth M easurement Units” and “Changing the Cha nnel Setting” below). After the start-up proc ess, t he windows will display pi tch, roll, and distance if th ere is an active transmitte[...]

® Receiver For receivers that have pre-5.0 series firmware, the bottom window w ill continue to display the receiver’s distance from the tran smitter in the bottom windo w, not the predicted depth. (For more information, see “5.0 Series Firmware Functions” in this section or see the Locating Section.) Any time the trigger is clicked (pushed [...]

Receiver ® Changing the Depth Measurement Units (English vs. Metric) The DigiTrak Receiver is capable of displayin g depth in either inches (English ) or centimeters (metric). The depth measurement units ca n onl y be changed during the start-up process. To change the measurement units: Instead of clicki ng the trigger to initiate start-up, si mpl[...]

® Receiver Warning Tones for Transmitter Overheat Beginning with firmware version 3.76, the DigiTrak Re ceiver will emit a series of increasing warning tones to signal transmitter overheating as follows: Temperature Range Warning Signal 14 ° C and below No audio or v isual warnings. 15 ° C to 35 ° C One double tone with every 4 ° C increase in[...]

Receiver ® Following are some gene ral points regarding the ultrasoni c fun ction: ¾ The ultrasonic function in the receiver is independent of the transmi tter receiving functions. ¾ A single click to activate the ultrasonic func tion can be used an unlimited n umber of times without affecting the receiver’s calibration. ¾ The ultrasonic meas[...]

® Receiver Calibrating the Receiver There are two different calibration methods: 1 -point and 2-point. The 1-point calib ration is performed with the transmitter in the housing parallel to and 10 ft 5 in. (3.18 m) from the receiver, as described below. A 2-point calibration is gene rally performed whe n the transmitter is below ground and it is no[...]

Receiver ® 4. Click the trigger one time. 5. The receiver will beep. During the beep, pull in the trigger and hold it. 6. Continue to hold the trigger and watch the countdow n (from 5 to 0) displayed in the bottom window. This countdown is ac comp anied by a chirping sound. 7. When the countdown reaches zero, let go of the trigger. 8. A good calib[...]

® Receiver 5. During the tone, click the trigger again and contin ue to hold the receiver level and steady. You will then hear 2 beeps followed by a long 6-seco nd tone, i ndicating that the first calibration point is found. 6. During the 6-secon d tone, raise the receiver straight u p, keeping it level and in the same plane above the transmitter,[...]

Receiver ® Calibrating with Transmi tter Underground at Shallow Depth (< 10 fe et) Should recalibration be ne cessary when the transmitt er is below ground at depths less than 10 ft (3 m), it is possible to con duct a modified 1-point calibration proce dure. This requires knowing the sig nal strength of the transmitter in the housing at 10 ft .[...]

® Receiver Finding Firmware Version It is possible to determine the firmware versi on in the re ceiver. This information is necessary to com plete troubleshooting diagno stics with DCI Customer Service by telephone. At start-up the firmware versio n is displayed briefly in the top left window. If you do not see the firmware version, it is likely t[...]

Receiver ® Procedure for Observin g the Pre dict ed Depth When the receiver (with 5.0 firmware ) is at the FNLP and held level with the trigger in, the bottom win dow will rapidly flash the predicted d epth number accompani ed by a solidly lit squi ggl e (“~”); the predicted depth information is also displ ayed in the bottom wi ndow on the rem[...]

® D IGITAL C ONTROL I NCORPORATED T ransmitter Fro nt Back Bat ter ies Ante nna Index Slot DigiTrak Transmitter A transmitter (also referred to as a so nde, beacon, or probe) is a device that emits electromagnetic signals at radio frequ encies and fits inside the tool ho using. It transmits informat ion regarding its location, position, and headin[...]

Transmitter ® Transmitter roll positions are displaye d digitally as a whole number from 1 through 12 in the top right window with the receiver’s trigger released. The num bers correspond to the hour han d of a cl ock. At the 12 o’clock position, the transmitter is oriented with the index sl ot at the top. The tapered or flattened su r- face o[...]

® Transmitter The temp dot should be white if the transmitter has not been exposed to excessive he at. If the temp dot is silver or gray, it indicates the transmi tter has been exposed to heat but not in exce ss of the speci- fications. A black temp dot indicates t he transmi tter has been e xposed to temperatures in excess of 104°C (220°F). The[...]

Transmitter ® any free space bet ween the transmitter and the side walls of the housing. If necessary, fabricate an “insert” behind the t ransmitter to ensure a snug fit. When wrapping with tape, be sure that the pitch will not be offset. If more tape is on one end than the other, th e trans- mitter will not be level in the housing. Also, be s[...]

® Transmitter Locating the Transmitter The properties of the transmitter’s m agnetic field enable the receiv er to locate the transmitter accurately below ground. The transmitter emit s an elliptically shaped field that allows the receiver to lo cate the transmitter using three specific location s, not just the highest sig nal. These locations a[...]

Transmitter ® Serial Numbers All transmitters are identified by a serial number stamped in the metal battery compartment near the plastic/stainless steel conta ct. NOTE: When calling DCI Custome r Service be p re p ared to supply the serial number. Specifications The specifications given below assume the use of the la test model (Mark III) of the [...]

® D IGITAL C ONTROL I NCORPORATED Remote Display System Pitch or Ba tter y Status Dep th/D ist ance or Predicted De p th Roll or Tem per ature Re m ot e Steering Windo w Channe l Selector On/O ff Bu tton Mount ing Screws for Da taLo g Modul e I 5 I I 8 8 ~ Remote Display Unit The DigiTrak Remote Displ ay unit is typically positi oned where it will[...]

Remote Display ® On/Off and Setting the Channel To turn the unit on, place a fully charg ed DigiTrak battery pack into the battery comp artment, terminal end in first, then push the black button on the front of the display panel. Select one of the four cha nnels. Note that c hannel s 1 and 3 use one frequency, and cha nnels 2 and 4 use a second fr[...]

® Remote Display Remote Steering Drill Dril l Path Tra nsmi tte r Under Roadway Receiver Plac ed on Si de (Dr ill Path Is Aligned with Ta rget Point on Front Pa nel) Target Point Setting up DigiTrak Receiver for Remote Steering Remote steering is used t o cross streams a nd roadways or other ina ccessible areas when it is not possible to walk over[...]

Remote Display ® Verti cal Bar (Rep r ese n ts Trans mitte r) Steeri ng Tria ngle s (R eprese nt Receiver) I 5 I I 8 8 ~ Align Vertical Bar (Transmitter) with Triangles (Receiver) in Remote Steering Window to Steer Tool As the transmitter approaches the target (receiver), the FNLP will pass underneath and go past the receiver. At this point, the r[...]

® D IGITAL C ONTROL I NCORPORATED Battery Charger DigiTrak Battery P ack DC Power Cord AC Pow e r Cord Unexposed Terminal -- Do Not Ex p o se -- Negative Termi nal Positive Termi nal C ontrol Pane l DigiTrak Battery Charger Both the DigiTrak Receiver and the Remote Di splay use a DigiTrak rech argeable NiCad battery pack th at is provided with the[...]

Battery Charger ® Only two terminals are exposed on the DCI NiCad batte ry pack, althoug h a third terminal appears to be available. If the third terminal accidentally becomes ex posed, do not try to charge the battery pack or you may damage the battery charger. Su ch a battery can also damage th e remote display or receiver. A damaged battery pac[...]

® Battery Charger Conditioning a Battery in the Charger 1. Place the battery into the charger. 2. Press the right button on the ch arger (marked with a cu rved arrow). The red light on the left will go out and the green light on the right will start to blink. This indicates that the battery is bein g condi- tioned. The conditioning cycle may last [...]

Battery Charger ® Notes 3-3000-00f-F 32 DigiTrak ® Mark III Operator’s Manual[...]

® D IGITAL C ONTROL I NCORPORATED System Operating Instructions Start-up Procedure 1. Ensure that the transmitter has fresh C-cell alkaline batteries in stalled and place the transmitter inside the tool housing. 2. Click the receiver trigger, locate d under the han dle. All the displays will illum inate, and a tone will sound. 3. Ensure that the r[...]

System Operation ® Optimal Operating Temperatures The minimum operating temperature for the DigiT rak locating equipment i s -4°F (-20°C). All battery- operated equipment is prone to “capa city loss” in cold temperatures. Excessively cold temp eratures can result in slow display response and increa sed m easurement errors. The maximum temper[...]

® D IGITAL C ONTROL I NCORPORATED Signal Interference Before drilling (preferably before bidd ing on a project) the in terference potential at your site(s) should be evaluated. Interference ca n reduce the transmitter’s range or cause variable rea dings and possibly result in job slowdowns. Interference comes f r om two di fferent types of sourc[...]

Signal Interference ® There are two steps to the electrical i nterference/b ackground noise ch eck. The first step takes one person; the second step requires two p eople. 1. With the transmitter off, test the amount of noise the receiver hears by holding in the trigger and walking the borepath from the laun ch to the exit location. Watch the signa[...]

® D IGITAL C ONTROL I NCORPORATED Operational T ests Self-Test for Mark III Receivers Mark III Receivers have the capability of completing a diagnosti c self-tes t to confirm proper operation. This test must be conducted without a transmitter and in an interfe rence-free environment. The self-test procedure is condu cted at st art-up by clicking t[...]

Operational Tests ® 3. Walk toward the axis line and wat ch for the plus (“+”) sign in the top left window to change to a minus (“–”) sign. Note this location. 4. Continue past the axis line, then stop and turn the receiver 180° around so it is facing in the opposite direction. Walk back toward the axis line from this oppo site side and[...]

® Operational Tests ¾ Defective Transmitter – With the transmitter an d receiver on, place the transmitter against the receiver (long side of tran smitter parallel to long si de of receiver) while holding in the trig ger. If you see anything less than 999 in the top left window an d 000 in the bottom windo w, it is likely that there is a broken[...]

Operational Tests ® ¾ Battery Life – Verify the housing slot s (windows) are prop erly aligned over the transmitter’s antenna. If the battery life of a transmitter seems to be shorter than that noted in the spe cifications provided in the Transmitter Section, it could be due to battery arcing, which can occur in hard drilling conditions. tran[...]

® Operational Tests Transmitter Battery Tests ¾ The design of the windows/slots in a h ousing can grea t ly affect the transmitter’ s battery life, especially on the red long-range DX Transmitters. The windows must be a minimum of 8 inches (20 cm) long and line up longitudinally along the drill housing, dire ctly above the center of the transmi[...]

Operational Tests ® Notes 3-3000-00i-F 42 DigiTrak ® Mark III Operator’s Manual[...]

® D IGITAL C ONTROL I NCORPORATED Locating Locating Mode 458 202 22 + ~ Plu s (+) Indicator Signal Str ength Predi cted Depth Transmitter Temperature Locating Mode (Trigger Held In) To locate the transmitter the receiver’s trigger must be h eld in. This is referre d to as the “locating mode”. When the trigger is held in, the top left window [...]

Locating ® Rec eiver par allel to Tran smitter and faci ng in oppo site direct i on Rec eiver p arallel to T r ansmi tter and facing i n sam e di r ect io n Receiver Can Face in Either Direction with Respect to Transmitter Handling the Receiver For the most accurate locating, the receiver m ust be held level and parallel to the transmitte r. The r[...]

® Locating In summary, the three locations mentio ned above are as follows: the rear negative locate point (RNLP), behind the transmitter; the positive locate line, above the transmitter; and the front negative locate p oint (FNLP), ahead of the transmitter. The RNLP and th e FNLP show the positio n and lateral orientation of the transmitter. Usin[...]

Locating ® PLL Drill Plu s Changes to Minus 2. To determine the la teral and therefore the actual location of the RNLP, turn toward the left so that the receiver is perp endicular (90 ° ) to the drill string and move the receiver forward. Agai n, move the receiver slightly forward and backward until pinpointing the location where the “+/–” [...]

® Locating Finding the Front Negative Locate Point (FNLP) 4. At the PLL, con- tinue walking away from the drill with the trigger held in; the signal strength will decrease. When the “+” sign flips to a “–” sign, this is the FNLP. Again, move the receiver forward and backward a little pinpointing the location where the “+/–” signs f[...]

Locating ® Finding the Transmitter and Its Depth 7. While standing on the FNLP facing the drill, it is possible to “sight in” or align the FNLP with the RNLP. This axis line is at a 90° angle (perpendicula r) to the PLL. Whe re this axis line crosses th e PLL is where the transmitter will be found, below ground surface. Take the receiver to t[...]

® Locating Locating the Transmitter from the Front The transmitter’s three locations can b e determined in a similar manner as describ ed above starting in front of the transmitter while facing the drill. Start at a location well ahead of the transmitter an d hold in the trigger while facing th e drill. A “+” sign should appear in the top le[...]

Locating ® Locating on the Fly Once you are comfortabl e finding the tra nsmitter’s three locating points (FNLP, RNLP, and PLL) it is time to increase your speed at locati ng. Hopefully this will directly affect your productivity! 1. Mark the position of the FNLP a nd pace out the distance of the next drill rod (this di stance will vary dependin[...]

® Locating 4. Step further to the side of the transmitter and agai n find the point where the “–” sign chang es to a “+” (Point 2). 5. Repeat this procedure to find the third location (Point 3). When all three of these p oints are lined up, they co nf irm the location of the PLL, from which the headi ng of the transmitter can be determin[...]

Locating ® 7. Repeat steps 2 through 6 until the “+/–” signs flip from one to the other over a very small area. Thi s is either the FNLP or the RNLP. To find the other locate point, walk in the assumed direction of drilling. If the signal strength increases you are at the RNLP; if it decrea ses you are at the FNLP. 8. To confirm you are over[...]

® Locating Running off Pitch or Calculating Depth from Pitch The transmitter’s depth can be estimated by using the pitch info rmation. Use the following procedure to estimate the depth based on the pitc h, starting with the first ro d. 1. At the point the drill head penetrates the surfa ce of the ground to the middle of the transmitter’s slots[...]

Locating ® Elliptical Shape of Transmitter Signal Field Transmitter’s Signal Shape It is important to understand some fun damental con- cepts about the transmitter’s electromagnetic sign al and the way the receive r’s antennas read or receive this signal. The shape of the transmitter’s signal field is elliptical. This elliptically shaped f[...]

® Locating Fi eld St rengt h: 100% 0% Field Streng th : 100% 0% Parallel Field Lines and Antenna Perpendicular Field Lin es and Antenna Orientation of Field Lines with Respect to Antenn as >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> Field Strength: 50% 50% Vertical Field[...]

Locating ® Notes 3-3000-00j-F 56 DigiTrak ® Mark III Operator’s Manual[...]

® D IGITAL C ONTROL I NCORPORATED Cable T ransmitter System Remo te D ispla y Pow e r Suppl y Cable Transmitters Extraction / Inserti on Tool DigiTrak Cable Transmitter System The DigiTrak Cable Tra nsmitter System is desi gned specifically for the following applications: ¾ Borepaths with depths in excess of 50 ft (15 m). ¾ Borepaths with length[...]

Cable Transmitter ® Remote Display with Cable Transmitter Capability – This is a remote display that has been up graded or was origin ally built to display the cab le transmitte r data. During operation with a cable transmitter, a delta symbol ( Δ ) illuminates in the top left window indicating the cable mode. All “cable-ready” remote displ[...]

® Cable Transmitter Power Supply The Cable Transmitter Power Supply plugs into the remote di splay where a regular DCI battery pack is normally placed. The power supply has three wires extending from it. The green and black wires shoul d be connected to a DC power source (gr een is positiv e, black is negative). The white wire is con nected to the[...]

Cable Transmitter ® Cable Transmitter The cable transmitter has the same ge neral features and capabilities as the other DigiTrak Transmitters but with increased depth range. Th e dimensions of the ca ble transmitter are the same a s those of the 2- cell DigiTrak Transmitters (DT, DX, and DXP). Howe ver, there is also a po wer/signal cable extendi[...]

® Cable Transmitter ¾ Temperature information can be acce ssed man ually by turning off and then on the cable-ready remote display. ¾ Upon supplying power, the cable transm itter will begin transmitting data. ¾ There is no sleep mode; therefo re, the power supply must be turned off manually at the end of the day. Failure to turn off the power o[...]

Cable Transmitter ® Viewing the Cable System Battery Status The percentage of required voltage will be displayed in the top le ft window of the remote display fo r 2 seconds whe n the transmitter’s temperature i ncreases by 4 ° C, which will be displayed in the top right window. To manually access the voltage status, turn the remote display off[...]

® D IGITAL C ONTROL I NCORPORATED T roubleshooting Problem/Concern Causes/Solutions Section to Consult 1999 in bottom window of receiver, indicating no signal is being received from the transmitter. Transmitter is asleep (wake it up by rotating the drill string). Dead batteries in the transmitter. Broken transmitter. Overheated transmitter. Transm[...]

Troubleshooting ® Problem/Concern Causes/Solutions Section to Consult Remote display has dash e s across windows. (Continued) Interference is interrupting the signal from the receiver. Line of sight between receiver and remo te display may be obstructed (by such things as buildings, hills, or dense vegetation). Receiver is not equipped to send a s[...]

® Troubleshooting Problem/Concern Causes/Solutions Section to Consult Erratic depth. Interference. Transmitter is off. If possible, try another receiver or transmitter to identify the problem. The approximate depth may be calculated using the pitch information and the distance between the FNLP and RNLP. Receiver or transmitter malfunction. “Elec[...]

Troubleshooting ® Problem/Concern Causes/Solutions Section to Consult Minus sign (“–”) in bottom window. Receiver is set on ground for depth reading, particularly at shallow de pths, a nd the ultrasonics are not reset. Reset the ultrasonics. Receiver has gone out of calibration. Recalibrate using either 1- point or 2 -point calibration. “U[...]

® Troubleshooting Problem/Concern Causes/Solutions Section to Consult Ultrasonics don’t work. Check ultrasonic hol es o n bottom of receiver for mud or debris. If dirty, carefully clean them out. Be extremely careful not to puncture the metal inside the ultrasonic holes. Use isopropyl alco hol (99% by volume) in modest amounts; swish around (ups[...]

Troubleshooting ® Notes 3-3000-00l-F 68 DigiTrak ® Mark III Operator’s Manual[...]

® D IGITAL C ONTROL I NCORPORATED Glossary Active Transmitter A transmitter that has batteries installed or a cable transmitter that i s hoo ke d up to power. Battery Charger Used to charge and condit ion (dischar ge) the Di giTrak ba tteries . May be used with AC or DC source s and is easily adapted for worldwide usage. Cable Transmitter Transmit[...]

Glossary ® Housing = Drill Tool = Drill Head The downhole device into whi ch the transmitter fits. Locate Line and Points See Positive Locate Line, Front Negative Locate Point, and Rear Negative Lo cate Point. Magnetic Distance The magnetic distance i s used by the receiver to calc ulate the depth/distan ce of the transmitter. Fo r more informatio[...]

® Glossary Remote Display A device at or near the dri ll rig used to displa y the transmitter’s i nformation communicated f rom the receiver. This device can be used for remote steeri ng when wal kover locating is not possible. Roll The rotation about the longitudinal axis of the transmitter. Set the Ultrasonics To set the ultrasonics, cli ck th[...]

Glossary ® Ultrasonic Distance = Ultrasonic Me a surement = Height-Above-Ground Measurement The receiver’s height above the groun d, which is di splayed in the bottom window for 2 seconds after the trigger is clicked. The ultrasonic measure ment is used to accommodate the different heights of drillers. For more information see “Ultraso nic Fun[...]

® D IGITAL C ONTROL I NCORPORATED Appendix The information and tables contained in this ap pendi x provide further assistan ce for confirming the posi- tion of the Transmitter. The following information is provided: Depth Increase in Inches per 10-foo t Rod Percent of Grade to Degree Conv ersions (1 % Pitch Transmitters) Percent of Grade to Degree[...]

Appendix ® Depth Increase in Inches per 10-foot Rod Percent Depth Increase Percent Dep t h Increase 1 1 27 31 2 2 28 32 3 4 29 33 4 5 30 34 5 6 31 36 6 7 32 37 7 8 33 38 8 10 34 39 9 11 35 40 10 12 36 41 11 13 37 42 12 14 38 43 13 15 39 44 14 17 40 45 15 18 41 46 16 19 42 46 17 20 43 47 18 21 44 48 19 22 45 49 20 24 50 54 21 25 55 58 22 26 60 62 2[...]

® Appendix Percent of Grade to Degree Conversions (1% Pitch Transmitters) Percent Degree Percent Degree Percent Degree Percent Degree 1 0.6 26 14.6 51 27.0 76 37.2 2 1.1 27 15.1 52 27.5 77 37.6 3 1.7 28 15.6 53 27.9 78 38.0 4 2.3 29 16.2 54 28.4 79 38.3 5 2.9 30 16.7 55 28.8 80 38.7 6 3.4 31 17.2 56 29.2 81 39.0 7 4.0 32 17.7 57 29.7 82 39.4 8 4.6[...]

Appendix ® Percent of Grade to Degree Conversions (0.1% Pitch Transmitters o r Sensitive Pitch) Percent Degree Percent Degree Percent Degree Percent Degree 0.1 0.1 2.6 1.5 5.1 2.9 7.6 4.3 0.2 0.1 2.7 1.5 5.2 3.0 7.7 4.4 0.3 0.2 2.8 1.6 5.3 3.0 7.8 4.5 0.4 0.2 2.9 1.7 5.4 3.1 7.9 4.5 0.5 0.3 3 1.7 5.5 3.1 8 4.6 0.6 0.3 3.1 1.8 5.6 3.2 8.1 4.6 0.7 0[...]

® Appendix Degree to Percent of Grade Conversions (1% Pitch Transmitters) Degrees Percent Degrees Percent 0 0.0 23 42.4 1 1.7 24 44.5 2 3.5 25 46.6 3 5.2 26 48.8 4 7.0 27 51.0 5 8.7 28 53.2 6 10.5 29 55.4 7 12.3 30 57.7 8 14.1 31 60.1 9 15.8 32 62.5 10 17.6 33 64.9 11 19.4 34 67.5 12 21.3 35 70.0 13 23.1 36 72.7 14 24.9 37 75.4 15 26.8 38 78.1 16 [...]

Appendix ® Degree to Percent of Grade Conversions (0.1% Pitch Transmitters) Degrees Percent Degrees Percent 0.1 0.2 3.1 5.4 0.2 0.3 3.2 5.6 0.3 0.5 3.3 5.8 0.4 0.7 3.4 5.9 0.5 0.9 3.5 6.1 0.6 1.0 3.6 6.3 0.7 1.2 3.7 6.5 0.8 1.4 3.8 6.6 0.9 1.6 3.9 6.8 1 1.7 4 7.0 1.1 1.9 4.1 7.2 1.2 2.1 4.2 7.3 1.3 2.3 4.3 7.5 1.4 2.4 4.4 7.7 1.5 2.6 4.5 7.9 1.6 2[...]

® Appendix Calculating Depth Based on Distance Between FNLP and RNLP It is possible to estimate the transmitter’s d epth shou ld the information displa yed in the depth/distance window become unreliable. This is only possible if the pitch and negative lo cate points are reliable and the ground surface is level. To estimate the transmitter’s de[...]

Appendix ® Notes 3-3000-00n-F 80 DigiTrak ® Mark III Operator’s Manual[...]

® 19625 62nd Ave. S., Suite B-103 y Kent, Washington 98032 US A y 425-251-055 9 or 800-288-3610 y Fax 253-3 95-2800 www.digitrak.com (Web Site) DCI @digital-control.com (E-mail) Page 1 of 2 D IGITAL C ONTROL I NCORPORATED REMOTE TELEMETR Y LICENSE The attached license is required by the United States Federal Communications Commission (“FCC”) f[...]

3-3000-00o-F Page 2 of 2[...]

® 19625 62nd Ave. S., Suite B-103 y Kent, Washington 98032 US A y 425-251-055 9 or 800-288-3610 y Fax 253-3 95-2800 www.digitrak.com (Web Site) DCI @digital-control.com (E-mail) Page 1 of 2 D IGITAL C ONTROL I NCORPORATED LIMITED W ARRANTY Digital Control Incorporated ("DCI") wa rrants that when shipped from DCI ea ch DCI product (“DCI[...]

DCI reserves the right to make changes in desig n and improvements upon DCI Products from time to time, an d User understands that DCI shall h ave no obligation to upgrade any previously manufactured DCI Produ ct to include any such changes. The foregoing Limited Warranty is DCI’ s sole warranty and is made in place of all ot her warranties, expr[...]