3M 2573, 2550 manual One-person Active Induction Mode Sweeps

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Walk in a grid pattern over the sweep area holding the receiver as shown in the following illustration. Stop when there is a response increase, locate the position of the maximum signal, follow the conductor path all the way out of the sweep area while putting location marks on the ground. Resume the sweep until another cable or pipe is detected, or the whole area is completely swept. Switch to another available passive frequency in the receiver and sweep again.

D. One-person Active Induction Mode Sweeps

One-person active induction mode sweeps require that the transmitter be set on the ground over the suspected path of the buried infrastructure. The receiver is used to detect signals induced by the transmitter on buried long conductors. Proper placement and orientation is key to maximize the induced signal in the buried cable or metallic pipe enough to be detectable by the receiver along each path in the swept area. (Note that no signal is induced onto a conductor whose path is perpendicular to the Induction Direction indication.)

Place the transmitter in the upright (bottom on ground) position for directional optimization when aligned with the Induction Direction shown on the label on the transmitter.

Tip the transmitter over towards the front, and lay it on it's front surface, for multi- directional wide area induction. (Note that no signal is induced onto a conductor whose path is directly under the transmitter).

Remove anything plugged into the Output Jack [T-6] (this will place unit in Induction Mode), select highest available frequency (200 kHz) and highest output power level.

Select the Induction Peak (Ind Pk) mode and 200 kHz frequency on the receiver. When in close proximity to the transmitter in induction mode, there is a direct signal from the induction antenna in the transmitter to the receiver through the air. Induction Peak (Ind Pk) mode is a newly added locate mode for use in closer proximity to a transmitter in Induction mode (<60 ft , 20 m typ.). Special (single) Peak (Spl Pk) would give the highest sensitivity, but is affected by the air signal more than Induction Peak (Ind Pk) mode.

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78-9000-0192-2 Rev C

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Contents 3M Dynatel Cable/Pipe/Fault Locator 2550/2573 Series Contents Aerial Faults Toning Cable Identification Rev C Safety Information Intended UseAbout This Manual Transmitter Battery Installation Quick StartReceiver Battery Installation Transmitter 2550 Keypad and Connector Definitions Cleaning Receiver and Transmitter UnitsService and Accessories Transmitter 2573Keypad and Connector Definitions Rechargeable Battery Information Maximum Transmitter OutputReceiver 2550 Keypad and Display Definitions Rubber coverReceiver Keypad and Display Definitions ReceiverMain Menu Display Menu DisplaysMain Menu/Locate Menu Main Menu Display Rev C Selecting Depth Units Configuring The ReceiverSetting the Receiver Clock Selecting a LanguageEnabling/Disabling Locating Frequencies Selecting Locate Modes Antenna ModesSelecting External Jack Frequencies Tone Frequencies Creating User Defined FrequenciesMenu/OK 5Toggle to Main Menu + More SK4 + SK5 + SKc Adjusting Display ContrastSelecting Locating Audio Direct Connect Method Locating Buried Cables And PipesTransmitter Connections Rev C 3M Dyna-Coupler Method Non-SweepingPassive Induction Mode Locating Induction MethodSweeping Active Induction Mode Locating Passive SweepsOne-person Active Induction Mode Sweeps Two-person Active Induction Mode Sweeps Transmitter Set-upReceiver Locating Trace Modes Trace View T-ViewSpecial Peak Spl Pk Induction Peak Ind PkDirectional Peak Dir Pk Left of Target Path Directly Over Target PathDirectional Null DirNull VOL 13 press up arrow Expanded ModeDepth and Current Estimate Active Frequencies Power FrequenciesLocating Frequencies Passive Frequencies Auxiliary FrequenciesLocating in Directional Peak Mode Rev C Locating Active Duct Probes Sondes Determining Active Duct Probe Depth Locating Buried Sheath Faults And Earth Return Faults Transmitter SetupPinpointing the Buried Fault Rev C Enabling/Disabling Marker Types Alert ModeLocating 3M Electronic Markers and 3M iD Markers Single Marker Locate Dual Marker Locate 3M iD Marker DepthPassive Electronic Marker Non-iD Depth Creating/Editing Templates for 3M iD Markers Creating New TemplatesRev C Rev C Editing Templates Menu/OK 5Toggle to Main Menu + Write Mode SK11 Writing 3M iD MarkersRev C Press Menu/OK 5Toggle to Main Menu + Write Mode SK1 Modifying Marker Data to be WrittenRev C Rev C Read History Reading 3M iD MarkersReviewing Marker Read/Write History Write History SK Capturing the GPS Coordinates Capture Mode / ModeGPS Compatibility Operation Menu/OK 5Toggle to Main Menu + SK3 + NmeaPath Mapping with GPS Menu/OK 5Toggle to Main Menu + SK3 + GISCreating Trace Templates Menu/OK 5Toggle to Main Menu + SK3 + GIS SK or PDA SKTransmitter Setup Additional ApplicationsCable Identification Connection DiagramsTransmitter Setup Menu/OK 5Toggle to Main Menu + More SK4 + SK7 Help ModeReceiver Setup Menu/OK 5Toggle to Main Menu + More SK4 + S/N# SK6 Dynatel PC Tool Kit and Locator Software UpgradesSelf Test of Receiver Product Description Product Description And Optional AccessoriesStandard Configurations Locator Coupler Accessory Kit, 6 150 mm 1196/C Optional 3M Accessories for 3M Dynatel LocatorsLocator Coupler Accessory Kit, 4.5 114 mm 4519 2876Receiver Specifications SpecificationDetection Depth 3M Non-iD Passive Watt Transmitter Specifications Meter mode can display a fault resistance up to 10M ΩEnvironmental and Regulatory Specifications Rechargeable Battery InformationRev C Electrical Markets Division Important Notice