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 34 78-8130-6150-0-F

12. SettheFrequencyandmodeofthereceiver.

a. PressFreq[SK]

b. Selectthesamefrequencyonthereceiver

asthetransmitterbypressingActive [SK

Toggle].

c. PressLocate/OK [5]tosavethesettingand

returntolocatemode.

d. PressMode [SKToggle]untilDirPkis

displayed.

13. StandawayfromthesuspectedtargetpathandadjusttheGain [4]down untilthe

bargraphopenscompletely.

14. Walkinawidecirclewithyourbacktowardthetransmitter(about10to15feet

(3–4.5m)away).

− Watchthereceiverdisplayandlistentothesignal.Takenoteofwherethe

receiverdetectsthestrongestSignalStrength[10].

− Thebargraphwillclosewhentheunitdetectsasignal,andthearrows

willreverse.

− AdjusttheGain[4]downifthebargraphclosescompletely.

− TheSignalStrength[10]numbersonthedisplaywillchangewiththesignal

strength(smaller,asyouwalkawayfromthetargetpath;larger,asyouapproach

thetargetpath).

− Makeacompletecirclearoundthetransmitter.Returntoeachpointinthecircle

thatthereceiverdetected.

15. Measurethedepthandcurrentofeachpointtoidentifythetargetpath.Thedepth

ofthetargetpathshouldbeasexpectedandtherelativecurrentshouldcompare

totherelativecurrentthatisalternatelyflashingwiththefrequencyvalueonthe

transmitter.

Note: The relative current reading will decrease steadily as the locator moves away

from the transmitter. When using higher frequencies, this decline is more evident.

16. Adjustthegainsothatthebargraphrespondstothetargetpath(openwhenoff

path,almostcompletelyclosedwhendirectlyovertarget).

17. Tracethecable/pipeataslowwalkwhilemovingthereceiverinaside-to-side

motion,keepingthereceiverperpendiculartotheground.

18. Measurethedepthandcurrentoccasionallytoverifytargetpath.

3M Dynatel 2250M User Manual

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