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Schonstedt Loki Contractor, User Manual

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19

Replacing batteries

 Do not mix new and old batteries or different types of batteries, as this may 

cause them to overheat.

Loki Receiver

To replace the batteries, open the access cover using a 
screwdriver or coin. Use two LR20 (D-cell) alkaline batteries 
or equivalent NiMH rechargeable batteries.

Loki Transmitter

To replace the batteries, unscrew the fastener on the 
rear panel and replace with four LR20 (D cells) alkaline 
batteries. Observe correct battery polarity as indicated on 
the top-panel label.

Summary of Contents for Loki Contractor

Page 1: ...Loki Pipe Cable Locators User guide 90 UG114INT CONTRACTOR MODEL UTILITIES MODEL ...

Page 2: ...gging over a buried pipe cable is appropriate ShallowAlert may not activate even if a live power cable is present Keep mobile phones away from cable and pipe locators when in operation Minimum distance 24 60cm is recommended The Loki receiver cannot indicate whether a signal comes from a single pipe cable or from several cables or pipes bundled or buried in close proximity to each other It is reco...

Page 3: ...pedance utilities such as twisted pair telecom cables or insulated pipe joints A lower frequency of 512 Hz is also built in to support the long range locating of lower impedance cables such as power lines Utilities Model Built for the challenge of detecting and tracing buried water drain pipes and telecom ducts the low 512 Hz frequency can be used to trace metallic pipes The higher 82 kHz frequenc...

Page 4: ... signals Gain control Manual gain ShallowAlert Audio and visual warning when a cable or pipe less than 12 deep is detected Operates in Active and Passive locating modes NoiseProtect Automatically manages the system gain to compensate for strong signals e g from mains power or substations to enable accurate locating Loki Transmitters Contractor Utilities Induction 8 kHz Induction 82 kHz Induction 1...

Page 5: ...itch 6 Battery compartment 1 5 4 6 2 3 Screen Icons The Loki receiver s screen displays the following features Depth Warning readout Signal Strength Mode ShallowAlert Bar graph Frequency selection Speaker When using the Loki receiver in noisy environments thespeakercanbedetachedandheldclosertotheear To avoid excessive noise exposure hold the speaker no closer than 6 15 cm from the ear Prolonged us...

Page 6: ...signal strength from low to high signal strength LEDs indicate which power level is active Press again to return to standard power 3 Accessory Socket Connects cables or optional accessories such as the Signal Clamp Direct connection lead or Live Plug Connector When connected induction mode is disabled A loudspeaker emits a pulsing tone to indicate sufficient battery charge and a satisfactory direc...

Page 7: ...easurement function to decide if mechanical digging is appropriate NoiseProtect All Loki receivers incorporate NoiseProtect a powerful signal processing tool that identifies and automatically rejects electrical interference that may otherwise overload the Loki receiver s electronics NoiseProtect allows the operator to locate pipes and cables in electrically noisy environments such as near power su...

Page 8: ... ways of applying the Transmitter signal which is the most reliable way to detect a pipe or cable To select Transmitter mode rotate the function switch until the LCD displays a T icon Sonde mode Sonde mode detects the locate signals produced by a Sonde To select Sonde mode rotate the function switch until the LCD displays an S icon Getting Started 1 Grip the Loki receiver s handle Press and hold t...

Page 9: ... meter deflection to aid pinpointing Maximum meter deflection and audible volume from the speaker will indicate the position of the pipe or cable Determining a cable or pipe s direction When directly over the pipe cable and with the sensitivity level set for a narrow response rotate the Loki receiver on its axis until the signal minimum is found The Loki receiver is directly in line with it when t...

Page 10: ...tarting 4 Sweep the area to be excavated Begin by walking the perimeter of the proposed excavation area moving across the width in parallel sweeps around 0 5 meters apart Position the Loki transmitter as shown 5 Sweep across the width of the excavation site moving up the length Position the Loki transmitter as shown 6 If a cable or pipe is located first establish the direction of the cable or pipe...

Page 11: ...rocedure 1 Place the transmitter over the approximate position of the underground utility with arrows pointing parallel to its path 2 Set the Loki receiver and Loki transmitter to the same active frequency 3 Set the Loki receiver s sensitivity to 100 4 Start locating the line at least 33 feet 10m away from the transmitter 5 Mark the ground when the Loki receiver detects any signal spike Note Induc...

Page 12: ...ugh and if the connection point is a suitable material use the supplied magnet 3 Connect the black lead to the earth stake which should be secured in the ground 3 4m away from and at right angles to the target line Alternatively the black lead may be clipped to a valve box manhole cover or another earthed point Use the earth spool lead to extend the earth connection if necessary 4 Switch the Loki ...

Page 13: ...r pipe up to 215mm 8 5 in diameter without interrupting the supply Signal clamps are not suitable for connecting around lampposts Signal Clamp Procedure 1 With the Loki transmitter switched off plug the Clamp lead into the accessory socket 2 Place the Clamp around the pipe or cable ensuring the jaws are completely closed 3 Switch the Loki transmitter on then open and close the Clamp If the jaws ar...

Page 14: ... blade parallel to the direction the sonde is travelling Check that the bar graph shows more than 50 at high sensitivity Note In Sonde Locate mode the blade of the Loki receiver must aligned with the sonde this is opposite to other line locate methods Sonde Procedure 1 Attach the sonde to the rod and insert it into the drain or duct to be mapped Keep the sonde just in view 2 Hold the Loki receiver...

Page 15: ...sponse 8 Move the Loki receiver from side to side until the bar graph indicates a clear peak 9 When the Loki receiver locates a peak signal it will automatically calculate the depth of the sonde Observe the depth reading while moving the Loki receiver from side to side the lowest reading will be the correct location 10 Repeat each step in smaller increments with the Loki receiver blade resting on ...

Page 16: ...slowly across the sonde The shallowest depth reading displayed on the LCD is also the correct position directly above the sonde If the signal is too weak or unstable the Loki receiver will not calculate depth In this case use a more powerful sonde or use the Pinpoint procedure described below Pinpoint Procedure 1 Move the locator ahead of the sonde ensuring the blade s orientation is parallel with...

Page 17: ...selection button for the duration of the battery test bleep at switch on Live Plug Connector Do not use the supplied Direct Connect leads to connect to live cables Use the Live Plug Connector or Live Cable Connector Failure to do so may result in injury or equipment damage Connection to live power cables should only be undertaken by qualified personnel The optional Live Plug Connector applies the ...

Page 18: ...eflection and audible volume from the speaker will indicate the position of the pipe cable 7 When directly over the pipe cable and with the sensitivity level set for a narrow response rotate the Loki receiver on its axis until the signal minimum is found The blade is now parallel with the conductor 8 Trace the pipe cable beyond the site and mark the position as required FlexiTrace to locate non me...

Page 19: ...eck for an audible sound If no sound is heard replace the batteries before use 3 Switch on the Loki receiver by squeezing the trigger checking for an initial chirp A low tone indicates low batteries If no sound is heard replace the batteries before use 4 Rotate the Loki receiver function switch and check that the appropriate icon is displayed in each position of the switch as per the Modes section...

Page 20: ... the batteries open the access cover using a screwdriver or coin Use two LR20 D cell alkaline batteries or equivalent NiMH rechargeable batteries Loki Transmitter To replace the batteries unscrew the fastener on the rear panel and replace with four LR20 D cells alkaline batteries Observe correct battery polarity as indicated on the top panel label ...

Page 21: ...traffic Rx has detachable speaker doubles as ear piece Operating temperature 4 F to 122 F 20 C to 50 C Storage temperature 4 F to 158 F 20 C to 70 C Dimensions Rx 28 x 9 8 71cm x 25cm Tx 10 8 x 6 9 x 2 4 27 5cm x 17 5cm x 6cm Battery type D Cells Battery run time Rx 13 hours alkaline Tx 8 20 hours depending on mode alkaline Depth accuracy Line 5 0 3 9 8 0 1m 3m Sonde 5 0 3 16 0 1m 4 8m Locate accu...

Page 22: ...er based on warranty contract tort or any other legal theory Warranty services will be provided only with the original invoice or sales receipt indicating the date of purchase model name and dealer s name within the war ranty period This warranty covers only the hardware components of the Schon stedt product Before a unit is submitted for service or repair under the terms of this warranty or other...

Page 23: ...Schonstedt products designed to be used with the product vii Use of the product with accessories peripheral equipment and oth er products of a type condition and standard other than prescribed by Schonstedt viii Repair or attempted repair by persons who are not Schonstedt warranted and certified repair houses ix Adjustments or adaptations without Schonstedt s prior written consent including i Upgr...

Page 24: ...ction Radiodetection is a subsidiary of SPX Corporation Schonstedt Loki ShallowAlert NoiseProtect and FlexiTrace are trademarks of Radiodetection in the United Kingdom and or other countries Due to a policy of continued development we reserve the right to alter or amend any published specification without notice This document may not be copied reproduced transmitted modified or used in whole or in...

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