Manual - RYCOM Instruments, Inc.
Contents
1. NN NN NN ANN NN Blind Search The Blind Search locating techniques is used if the operator is not aware if a buried util ity exists Two people are needed for this technique The TRANSMITTER and the RECEIVER are Held 25 feet away from each other Each operator walks at the same speed keeping a distance of 25 feet from each other When the receiver gives an audio response then a buried utility is present between the ReceiveR and the TRANSMITTER TRANSMITTER E A 25 Feet 7 5 Meters Between Transmitter and Reciever lt 3 RECEIVER 800 851 7347 www rycominstruments com FE RYCON E instruments inc Selecting the Tracing Signal The choice of 815 Hz 8 kHz 33kHz or 82 kHz Frequency is dependent on the conditions of the locate The 815 Hz 8 kHz 33kHz and 82 kHz signals each have their advantages It is recommended to begin by using the 815 Hz signal and continue as long as you are confident in the results If the signal is very weak try to adjust the connection or grounding If there is no improvement in signal then try 8 kHz Repeat adjustments of ground and connection point again until switch ing to 33 kHz and then 82 kHz 815 Hz lower frequency signal is usually preferred to the 8 kHz mid range frequency and 82 kHz high frequency signal because it is much less susceptible to locating errors caused by nearby cables or pipes The 815 Hz locating range is also much longer than the 82 kHz signal T2. PATH MAXIMUM NULL SHOWS RECEIVER G CABLE SIGNAL DIRECTION Peak Mode Locating Continued Trace the path by walking away from the TRANSMITTER at a moderate pace Move the RECEIVER to the left and right while walking following the PEAK indications As you trace the path the PEAK meter reading may slowly fade as you move away from the TRANSMITTER Press and release the GAIN buttons as needed to compensate for changes in level higher or lower One of the following may occur a a junction where the signal divides and goes several directions b a break in the cable or shield c a change in the depth of the cable or pipe d an insulated pipe fitting e a slack loop of cable If you can no longer trace the path even with the GAIN set to maximum connect the TRANSMITTER to the far end of the path and trace back to the point where you lost the signal Mark the straight sections of the path every few feet Mark sharp curves loops and cable bundles every few inches Sharp changes in the path cause the ReceiveR PEAK and NULL indications to behave differently than when tracing a straight path Practice on the path that you know has turns and laterals in it This will help you to recognize the conditions within the field Null Mode Locating 800 851 7347 Move the Receiver left to right across the cable path When the Receiver is direct ly above the cable or pipe a NULL lowest meter reading and lowest audio tone
3. will occur When moving the Receiver to left or right of the NULL point the meter reading will rise to a maximum point PEAK The audio tone will also be at its highest pitch When the RECElver is moved beyond the PEAK the meter reading will begin to fade Trace the path by walking away from the TRANSMITTER at a moderate pace Move the RECEIVER to the left and right when walking following the NULL indications As you trace the path the PEAK meter reading may slowly fade as you move away from the TRANSMITTER Press and release the GAIN buttons as needed to compensate for changes in signal level If the PEAK meter readings suddenly changes in level higher or lower one of the following may have occurred a a junction where the signal divides and goes several directions b a break in the cable or shield C a change in the depth of the cable or pipe d an insulated pipe fitting e a slack loop of cable If you can no longer trace the path even with the GAIN control set to maximum connect the TRANSMITTER to the far end of the path and begin tracing the path back Mark the straight section of the path every few feet Mark sharp curves loops and cable bundles every few inches Sharp changes in the path causes the Receiver PEAK and NULL indicators to behave differently than when tracing a straight path Practice on the path that you know has turns and laterals in it This will help in recognizing the conditions within the field w
4. 8879PLS Cable amp Pipe Locator User Manual 8879 PLS 5 WATT UskeR s MANUAL 030 00086 00 800 851 7347 www rycominstruments com UE RYCON E instruments inc Table of Contents GENERAL INFORMATION INTRODUCTION soring ged AA E TR 2 Disclaimer of Biability debe wade oa ede eve cae ee as 2 Prepare for USE a aa dre ea se PRSE RI RR eet Y WE Y ub 2 Transmitter Controls and Indicators esses 3 Direct Connect iios see e ERR od eee G Ge E E RIGHE A pev 4 Flexicoupler Connection ee 4 Inductive CONNECTION ua ana RR Rye ey ee ers 5 sos lec EEEPET 5 Selecting the Tracing Signal ssec eoe ret emm ee 6 Receiver Controls and Indicators A aa 7 Locating the Cable or PIpe isses oe NALABI AG ete dee aie doe 8 Selecting the Locating Mode eese aa 8 Peak Locating MODE vitu dead bau ere re EXER AA 8 9 Null Locating MOA esain baie tenet hh e ee e ar ER ertet 9 Absolute Signal Strenelki ces d eR EE Ir a a E RR 10 Gain Change NACINOM e mwaa kam a RE RR eR ER tes 10 Passive 50 60 Hz l OCGIIGIg aa ade Rr eR Rd ERR e Eq 10 Push Button Deplli 322 62 daca ae de ad anap quee eus 11 Depth Measurement 45 Degree Angle Method 12 Tilted Magnetic Field Identification llle 12 8879PLS Transmitter Specifications llle 13 8879PLS Receiver Specifications aaa 14 ge eonki io 15 WY GITOIAIY S eon n NANA LANANG UR Hi UAR RE ae a ae
5. CLAIMER OF LIABILITY RYCOM INSTRUMENTS INC SHALL NOT BE LIABLE TO DISTRIBUTOR RESELLER OR ANY OTHER PERSON FOR ANY INCIDENTAL INDIRECT SPECIAL EXEMPLARY OR CONSE QUENTIAL DAMAGES OR INJURY OF ANY TYPE WHATSOEVER AND CAUSED DIRECT LY OR INDIRECTLY BY PRODUCTS SOLD OR SUPPLIED BY RYCOM INSTRUMENTS INC Prepare for Use Unpack your new 8879PLS Locator Make sure there is no shipping damage and all the parts are included Locate the battery compartment on the back of the head of the RECEIVER Open the compartment using a phillips screwdriver Install the six Duracell C batteries as marked Charge the transmitter for at least 5 hours before use Note For longer battery life and reliable operation under adverse conditions use only Duracell alkaline batteries 800 851 7347 www rycominstruments com UE RYCON E instruments inc 8879PLS Locator Series Transmitter Controls and Indicators Load Rate Output Signal Frequency Indicators Level Control Selector Tx Output Jack Relative Battery Condition ignal Information Power On 8 Off Resistance Volt Indicator Selector PAYAK Current TX OUTPUT JACK The ReD BLACK Corb Coupler and FLexicoupLek connects here to create a circuit on the bur ied utility TX ON A Frequency light and Output level light indicates unit is on FREQUENCY SELECTOR The 82 kHz reading indicates that the 82 kHz frequency is in use This frequency is the higher of t
6. KEY Hold while select ing secondary key ADJUSTS GAIN UP OR functions DOWN ON OFF Button The unit will load settings from previous usage Automatic shut off after 10 minute of no use FREQUENCY Button Toggles through available active and passive frequencies model specific 8879PLS 82 kHz 33kHz 8 kHz 815 Hz 60Hz 50Hz and RF or CP MODE Button Toggle through available mode model specific 8879PLS PEAK PINPOINT PEAK NULL ACC when an accessory is plugged in and SONDE locat ing modes DEPTH amp CURRENT Button DEPTH function will first momentarily display the depth mode Line LIN or Sonde SON and then display depth measurement at the top of LCD To change the Depth Measurement from English to Metric hold the Depth Key for ten seconds CURRENT measures the relative amount of transmitted current and is displayed at the bottom of the LCD GAIN Button Up or Down Adjusts the gain up or down If the signal strength shows as on the display pressing the GAIN will automatically adjust to 8576 on the scale display VOLUME SHIFT Button MODE Button Toggle volume through High Medium Low and Off BACKLIGHT SHIFT Button FREQUENCY Button Hold the SHIFT Key and press the CURRENT key to toggle on and off the back light LOW BATTERY The 8879PLS Locator will indicate low battery condition by displaying LO BAT in the three digit Signal Strength Display at the top of the LCD screen 800 851 7347
7. RANSMITTER D CELL 2 001 00323 01 TRANSMITTER RECHARGEABLE waaa 001 00323 00 USER S MANUAL Lus eem eer eer UC 030 00086 00 LOCATING BASICS VIDEO o sss osassa caos eee 035 00001 00 RED BLACK CORD LARGE CLAMP 151 00078 00 GROUND ROD era Lr LER Rr ka LAG be E 211 00032 00 AC CHARGER RECHARGEABLE TRANSMITTER ONLY 750 00023 00 AC CHARGER 230 VOLT 2 cece eee eee 750 00024 00 DC CHARGER gids aa ar rr rer KA siiri ddira 750 00006 00 8879PLS ACCESSORIES HARD INDUCTIVE CLAMP 82KHZ 0005 100 00243 00 HARD INDUCTIVE CLAMP 82KHZ 8KHZ 100 00244 00 FLEXICOUPLER 815Hz 82KHZ 005 100 00245 00 FLEXICOUPLER 82KHZ 8KHZ 000 0 100 00166 00 815Hz SEWER SOND 00 cee ee eee eee 001 00281 01 33K SEWER SONDE ioc ded tienen AA VU 001 00281 02 8K SEWER SONDE 0 2 eee ee eee ee 001 0028 1 04 815Hz DucT PROOFING SONDE aaa 001 00144 00 EIEADSET esed Na US CEU RN NA AA AN NAA 743 00013 00 800 851 7347 www rycominstruments com UE RYCON E instruments inc
8. Range 126 dB Depth Measurement Digital depth readout to 15 feet feet inches amp metric Manual Triangulation for verification of automatic readout in congested environments Automatic 800 851 7347 www rycominstruments com Fa RYCOM E instruments inc Factory Service Warranty Parts List If your 8879PLS Locator is not working properly first call RYCOM Tech Support for assistance If the locator is in need of repair Tech Support will provide instructions for sending your locator to the closest factory approved service center The instrument will be repaired and shipped back or you will be advise if the instrument is un repairable Note There is a minimum charge for repair and handling THIS INSTRUMENT I UNDER WARRANTY FOR ONE YEAR FROM THE DATE OF DELIVERY AGAINST DEFECTS IN MATERIAL AND WORKMANSHIP EXCEPT BATTERIES We WILL REPAIR OR REPLACE PRODUCTS THAT PROVE TO BE DEFECTIVE DURING WAR RANTY PERIOD THIS WARRANTY IS VOID IF AFTER HAVING RECEIVED THE INSTRUMENT IN GOOD CON DITION IT IS SUBJECTED TO ABUSE UNAUTHORIZED ALTERATIONS OR CASUAL REPAIR NO OTHER WARRANTY IS EXPRESSED OR IMPLIED THE WARRANTY DESCRIBED IN THIS PARAGRAPH SHALL BE IN LIEU OF ANY OTHER WARRANTY INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE WE ARE NOT LIABLE FOR CONSEQUENTIAL DAMAGES 8879PLS 5 WATT PACKAGE RECEIVER soo cetus pep Sad ERE C E 001 00322 00 T
9. TO LIVE OR ENERGIZED POWER CABLES Direct Connection is the most reliable method of signal application This method is relatively free of interference The greatest amount of signal strength can be achieved by this method Low mid and high frequency may be used The far end of the utility must be grounded Connect the Rep Test Corn to an existing ground point or an exposed metallic section of the utility Place the GROUND Rop approximately 10 feet from this point at an angle of 90 to the buried cable or pipe Push the Grounn Ron into the ground 8 to 10 inches Connect the BLack Test CORD to the GROUND ROD Plug the RED BLACK Test Corb into the TX OUTPUT JACK Press the FREQUENCY Button for 815 Hz 8 kHz 33 kHz or 82 kHz The Power Output Indicator and the Frequency light of the chosen frequency will light up TRANSMITTER Coupler amp Flexicoupler Connection The optional FLEXICOUPLER and HARD Coupler are very easy to use and services do not have to be interrupted The operation range is shorter than for Direct Connection methods The trac ing signal can be affected by neighboring cables and pipes The ReD BLACK Test Corb or the GRounDp RoD are not needed for this method Successful COUPLER Operation requires an insulated conductor that is grounded on both near and far ends Loop the FLexicouPLer around the cable and connect the two ends or clamp the HARD COUPLER around the cable It is important to c
10. When the receiver indicates a NULL reading mark the location of the receiver s foot The distance between the RECEIVER and the cable path is the depth of the pipe or cable A false depth reading may be caused by nearby buried metallic objects such as a second cable pipe sewer fence or railroad track Confirm the depth measurement by repeating the above steps on the opposite side of the pipe or cable A variance greater than 5 inches in depth measurement may indicate the pres ence of additional buried cables pipes or other objects Bubble level centered 1st Path 2nd locate Null Null Depth i EN E Earth a o Q Buried cable or pipe end view Tilted Magnetic Field Identification 800 851 7347 When adjacent cables or pipes are present they will sometimes create locating errors Some of the TRANSMITTER signal is picked up by the adjacent conductors and is redirected so that it combines with the original signal The result is a Tilted Magnetic Field This is often the reason that numeric depth readouts are sometimes created in error The operator can verify the accuracy of path locate by performing the 45 Angle Method locate on both sides of the cable path If the right and left side depth readings agree to within 5 inches the path locate is accurate If the two depth readings do not agree then dig with care A closer locate would be halfway between the two outside depth locate marks This is an important tec
11. e www rycominstruments com UE RYCON instruments inc Push Button Depth The only way to be sure of the depth of a utility is to exposes the utility At any given time the depth readout may be inaccurate The 8879PLS Receiver can measure depth with the push of a button The depth is displayed at the top of the LCD display in meters and centimeters Push button depth is useful in quickly determining the depth of the conductor during path locating Begin this measurement by locating the path of the cable or pipe Move to the location where you want to measure the depth Stay at least 15 feet 4 6 meters away from the TRANSMITTER Pin point this location as accurately as possible see Peak Mode Locating page 19 Null Mode Locating page 20 and Absolute Signal Strength page 21 Place the Receiver vertically over the conductor and rest the foot of the locator on the ground While holding the RECEIVER vertical press and release the DEPTH button The RECEIVER will briefly indicate a measurement is being performed and then display the depth at the top of the LCD display Caution must be exercised when using the push button depth feature as tilted magnetic fields and adjacent conductors can significantly influence this measurement The operator should periodically check for adjacent conductors and tilted magnetic fields when taking push button depth readings For information on identifying tilted magnetic fields refer to Tilted Magnetic Field Iden
12. et S 15 eiit v m 15 800 851 7347 7 www rycominstruments com FE RYCON E instruments inc Introduction Congratulations on the purchase of your new 8879PLS Locator The 8879PLS Locator is specially designed to detect pipes sondes telecommunication lines buried utilities This device may detect buried power cables CATV cables gas and water pipes sewer lines telephone cables fiber optic cables with sheath sondes inspection camera transmitters The TRANSMITTER emits a signal The Receiver detects the signal You can locate the rel ative position of the buried utility sonde or camera by following the tracing signal N WARNING Electric shock hazard e Follow appropriate safety procedure and your companies policies Tool is designed to detect electromagnetic field emitted from ca bles and buried metallic utilities There are buried cables pipes and utilities this instrument CANNOT detect LOCATING is not an exact science The only certain way to be sure of the existence location or depth of buried utilities is to carefully expose dig up the utility De energize any circuits in or around the work area Do not expose tool to rain or moisture Use tool only for intended purpose as described in this manual Turn off transmitter before touching test lead or any un insulated conductor Do not connect to live voltage or active utility lines Failure to observe these warnings could result in severe injury or death DIS
13. he 815 Hz signal will not travel well through disconnected shield bonds or insulated pipe bushing 8 kHz and 33kHz takes the best of both high and low frequency This mid range frequency is not very susceptible to bleed off or coupling but it can jump impedance on the utility better than the 815 Hz It is still best to use 815 Hz but 8 kHz is one of the most common frequencies used to locate coaxial cable and telecom pairs The 82 kHz higher frequency is sometimes better than the 815 Hz lower frequency for locating sharp corners in cables or pipes The 82 kHz signal is also better for jumping discon nected shield bonds or grounds or tracing signal may indicate one of these characteristics The locating range is quite short for the 82 kHz signal so the TRANSMITTER must be repositioned more often during the tracing operation This FREQUENCY is also useful for applying a signal using The FLEXICOUPLER OR THE HARD COUPLER 800 851 7347 www rycominstruments com FE RYCON E instruments inc 8879PLS Receiver Controls and Indicators DISPLAYS ABSOLUTE OPERATION MODE SIGNAL STRENGTH Displays selected OR DEPTH operation avail able to model MEASURES DEPTH RELATIVE SIGNAL Shift Key STRENGTH BARGRAPH MEASURES single bar shows gain CURRENT ON OFF BUTTON FREQUENCY setting 9 DISPLAYS SELECTED FREQUENCY SELECTOR MODE SELECTOR Shift Key Shift Key toggles on off toggles volume backlight SHIFT
14. he four The 82 kHz frequency is often used to locate highly resistive cables or pipes and is capable of jumping disconnected shield bonds or grounds The 815 Hz reading indicates that the 815 Hz frequency is in use The 815 Hz is the lower frequency It is less susceptible to locating errors caused by adjacent cables or pipes Also by using the 815 Hz frequency the locating range is greater The 8 kHz and 33kHz are mid range frequencies used when the 815Hz is too weak and the 82 kHz is bleeding off to easily LOAD RATE INDICATOR The Load Rate Indicator symbol flashes to indicate the output circuit impedance When the indicator blinks 4 times per second it is indicating a nearly short circuit When the indi cator blinks 1 time every 3 seconds it is indicating a nearly open circuit Note Holding down the Output Signal Level button for 2 Seconds will mute the Audio Load Rate indicator OUTPUT SIGNAL LEVEL CONTROL The OUTPUT SIGNAL LEVEL CONTROL adjusts the power output from the TRANSMITER There are 5 selections from low to high SIGNAL INFORMATION SELCTOR The unit can display the relative resistance current and voltage of the transmitted signal The resistance is based on the feed back from the selected frequency and is not an actual impedance meter The selections can be toggled by pressing the SIGNAL INFORMATION button 800 851 7347 www rycominstruments com FE RYCON E instruments inc Direct Connection CAUTION DO NOT CONNECT
15. hnique that should be used to ensure the most accurate location possible www rycominstruments com EE RYCON instruments inc 8879PLS Pathfinder Specifications Transmitter Operating Frequency 82 kHz 33kHz 8 kHz 815 Hz Operating Temperature 4 F to 133 20 C to 55 C Direct Connection Hook up Method Inductive Coupling with optional coupler Transmitter Induction Load Matching automatic from 5 Q to 20 000 Q Output Power 5 Watts High 250 Milliwatts Low Battery Types 8 D Duracell alkaline batteries 12 V 7 amp hour maintenance free sealed lead acid battery Battery Life greater than 30 hours Dimensions 8 4 x 5 57 x 2 6 Weit 2 2 Ibs 2 8kg depending on load frequency and power setting 800 851 7347 www rycominstruments com Fa RYCON E instruments inc 8879PLS Specifications Receiver Operating Frequency 82 kHz 33kHz 8 kHz 815 Hz 50 60 RF Antenna Mode Null vertical coil Peak horizontal coil Audio Indication Variable pitch audio Lo er e ilare Ea SC LUCE 4 F to 133 20 C to 55 C Battery Type 6 C Duracell alkaline batteries Battery Life Continuous 40 hours Intermittent 82 hours 10 minute auto shut off Dimensions 30 3 x 3 75 x 9 4 Weight 3 pounds LCD bar graph Absolute Signal Strength readout 0 999 Gain Control up down button for automatic centering and manual control Signal Strength Dynamic
16. mount of 815 Hz 8 kHz 33kHz or 82 kHz current flowing on the conductors regardless of the depth The highest current flow indicates the target conductor Place the REcElver vertically over one of the conductor marks and rest the foot of the locator on the ground Holding the Receiver vertical press and release the Shift Button amp Depth but ton simultaneously When the meter changes from a thermometer type display to a bar type display hold the Receiver still until the measurement stabilizes The blinking bar indicates the signal level on the cable adjusted for depth Next move to the second cable and repeat the measurement The blinking bar will show the signal level on the conductor In addition the previous reading is shown as a solid bar The higher of these two readings will show which conductor is carrying the greatest locating signal www rycominstruments com UE RYCON instruments inc Depth Measurement 45 Angle Method Move to the location you want to measure depth Stay at least 15 feet away from the TRANSMITTER Move the Receiver left to right across the path until the cable is located Mark the path on the ground as precisely as possible using the Null Method Place the ReceiveR on the ground with the LCD meter facing up Position the unit so that the BUBBLE LEVEL on top of the meter is centered 45 Pull the Receiver away from the cable path at 90 to the cable path keeping the BUBBLE LEVEL centered
17. n will center the meter reading to mid scale Passive 50 60 Hz Locating The 8879PLS Receiver is capable of locating power utility frequencies This MODE is useful for locating underground primary and secondary power utilities In certain circumstances this MODE will also locate water pipes sewer lines cable television and telephone The reason is that common electrical grounds are sometimes found among these various utilities Select the 50 60 Hz frequency on the Receiver Select PEAK mode Locate the conductor using the PEAK mode This method is useful because of its speed and convenience Start at a known reference point and keep in mind that other conductors in the area may produce this same locating signal The TRANSMITTER is not required to locate in this mode Passive Radio Frequency Locating 800 851 7347 The 8879PLS Receiver is capable of passively locating metallic utilities where radio frequen cies have coupled to the utility This mode is useful for sweeping a green area for utilities In certain circumstances this mode will locate water pipes cable television gas lines and telephone This locating option does not always detect buried utilities even when radio fre quencies are present This method is useful because of its speed and convenience Start at a known reference point and keep in mind that other conductors in the area may produce this same locating signal The TRANSMITTER is not required to locate in this mod
18. onnect the courLeR around the cable needing to be traced Connect the courter around the wire closer to the outgoing cable not near the sys tem ground The result will be a stronger signal By connecting near the grounding the range will also be shorter and difficulty may arise determining one cable from another Plug the Coup er Test CORD into the TX OUTPUT JACK Always use the 82 kHz FREQUENCY on the RECEIVER and the TRANSMITTER TRANSMITTER FLEXICOUPLER T f BURIED CABLE 800 851 7347 www rycominstruments com KG RYCON E instruments inc Inductive Connection This method is convenient to use and services are not interrupted No test cords or connec tions are needed The cable or pipe must have good insulation or non conductive coating or the operating range will be short Turn the TRANSMITTER ON Press the 82 kHz button Place TRANSMITTER ON ITS SIDE as Close as pos sible to the path of the cable or pipe Align the ARROWS on the SIDE OF THE TRANSMITTER in line with the cable or pipe First locate the broad TRANSMITTER Null then move toward the expected cable path while looking for the signal carried by the cable Start tracing the path with the Receiver 25 feet from the TRANSMITTER Search in the 90 zone as shown above Locate the cable or pipe and follow the path If the signal becomes weak move the TRANSMITTER to a point 25 feet behind the last strong signal and continue searching
19. tification and Depth Measurement 45 Method Note The 8879PLS is designed to alert the operator of potential current and depth measurement errors If the display reads Err during a current and depth measurement the Receiver has detected a condition that could produce inaccurate readings Errors can exist when the conductor signal flow is too small Check TRANSMITTER hookup and far end access point for poor connections This cause of error can be identified by a high GAIN setting 80 or greater on the bargraph display The Receiver may also be detecting adjacent cables or is not directly over the target conductor Verifying target conductor path precisely before measuring current again If at anytime the display reads CAL contact RYCOM Current Measurement 800 851 7347 The 8879PLS Receiver contains a feature that is very useful in identifying a desired cable in a field of various conductors and or utilities It is not unusual for the target conductor the conductor connected to the transmitter to induce a signal into nearby conductors in a crowded field In these instances the radiated signal on the conductors close to the surface of the earth may be stronger than the TRANSMITTER signal on the target conductor buried deep in the ground The operator will find two or more paths and must determine which is the target conductor By using the current measurement feature of the 8879PLS RECEIVER the operator can determine the a
20. ww rycominstruments com UE RYCON instruments inc Absolute Signal Strength The 8879PLS Receiver provides the operator with a direct measurement of the RECEIVER s signal strength The measurement is displayed with three numerical digits ex 485 located at the top of the LCD display The measurement range is from O to 999 indicating a very week signal 0 to a very strong signal 999 Absolute Signal Strength is independent of the GAIN setting or meter reading It gives the operator information about the actual amount of signal being radiated from the conductor and received by the RECEIVER Measuring Absolute Signal Strength at any time is done by reading the number at the top of the LCD display The Absolute Signal Strength will not be displayed if the meter reading is too high or too low Adjust the GAIN to move the meter reading to mid scale The numerical display will change from to a valid measurement Absolute Signal Strength measurements are more sensitive to signal changes than the meter display PEAKS and NULLS can be more precisely pin pointed This measurement can also be used to monitor signal loss as the conductor is being traced Gain Change Indication The GAIN up and down buttons are used to increase and decrease the gain in small amounts If the meter reading is very low pressing the GAIN up button will center the meter reading to mid scale Likewise if the meter reading is very high pressing the GAIN down but to
21. www rycominstruments com UE RYCON E instruments inc Locating the Cable or Pipe Make sure the TRANSMITTER is connected and in the ON position Then move approximately 15 feet 4 5 meters away from the TRANSMITTER along the path Move about 25 feet 7 5 meters for the Inductive search mode Hold the Receiver so that you can see the LCD bargraph and controls easily Make sure the RECEIVER and the TRANSMITTER FREQUENCY are both set for the same FREQUENCY either 815 Hz lower 8 kHz 33kHz or 82 kHz higher Or select the passive locating mode which do not require the transmitter Selecting the Locating Mode Peak or Null Press the MODE button to select the desired Peak or Null locating method Peak Mode Receiver Max Null Mode Receiver Min Signal over cable Signal over cable A AAA O A AAAA Qu m mossa Buried cable X End view Buried cable 9 End view Peak Mode Locating Keep the Recelver in a vertical position Move the Receiver left to right across the path When the RECEIVER is directly above the cable or pipe rotate the ReceiveR for a maximum signal As you move the Recever away from the cable path the meter reading and audio frequency response will drop off If you rotate the Receiver while over the cable a sharp NULL will identify the cable s direction It is aligned with the flat side of the RECEIVER CABLE CABLE PATH
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