Power Frequencies, Passive Frequencies | 3M 2250M-iD, 2273M-iD

B. Power Frequencies

Power frequencies refer to 50 or 60 Hz signals, and their harmonics, that can be traced without the use of a transmitter.

60:Best for general locating of passive power.

60H (high harmonic): If the 60 choice appears to be responding slowly, or poorly, then 60H is the second choice for locating of passive power.

60L (low harmonic): Third choice for passive power locating. May be used when 60 or 60L is weak or erratic. 60L may be the best choice when locating primary power cables.

120 Hz: Used for locating rectified AC power signals, often found on pipelines using impressed current cathodic protection.

1.Press Locate/OK [5]

2.Press Cable/Pipe [SK]

3.Press Freq [SK]

4.Press Power [SK Toggle] until the desired frequency is displayed in the soft key command [9] (“Power” 60, 60L, 60H, or 120).

5.Press Locate/OK [5] to return to Locate mode.

All U.S. receivers default to 60 Hz.

To set the receiver to detect 50 Hz signals refer to Enabling/Disabling Frequencies section of this manual.

C. Passive Frequencies

The receiver (without a 3M™ Dynatel™ Transmitter 2200 Series) can be used to detect some CATV cables (31.5 kHz). (A horizontal-scan television NTSC must be turned on to generate this frequency.)

1.Press Locate/OK [5]

2.Press Cable/Pipe [SK]

3.Press Freq [SK]

4.Press Pasv [SK Toggle]

5.Press Locate/OK [5] to return to Locate mode.

D. Auxiliary Frequencies

Auxiliary frequencies are signals generated from remote location transmitters, or frequency generating transmitters.

1.Press Locate/OK [5]

2.Press Cable/Pipe [SK]

3.Press Freq [SK]

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3M 2250M-iD, 2273M-iD manual Power Frequencies, Passive Frequencies, Auxiliary Frequencies

Contents

3M Dynatel Contents Rev G Rev G Rev G Safety Information Intended Use About This Manual Transmitter Battery Installation Quick Start Receiver Battery Installation Cleaning Service and Accessories 3M Dynatel Transmitter 2273 Keypad and Connector Definitions Rechargeable Battery Maximum Transmitter Output 3M Dynatel Receiver 2250M Key Pad and Display Definitions Dynatel 3M Dynatel Receiver 2273M Key Pad and Display Definitions Menu Displays Main Menu Rev G Rev G Configuring The Receiver Setting the Receiver ClockSelect Depth Units Selecting a Language Creating User Defined Frequencies Menu 6 + More SK4 + Setup SK6 + More SK6d + Tone Freq SK6jEnabling/Disabling Frequencies Filtering Power Frequency Interference Selecting Locating Audio Buried Cables And Pipes Transmitter Connections Direct Connect Method Rev G Dyna-Coupler Method Non-Sweeping Passive Induction Mode Locating Induction Method Sweeping Active Induction Mode Locating Passive Sweeps One-person Active Induction Mode Sweeps Two-person Active Induction Mode Sweeps Transmitter Set-up Locate/OK 5 + Cable/Pipe SK + Mode SK + Dir Pk SK Toggle Locate/OK 5 + Cable/Pipe SK + Mode SK + DirNull SK ToggleReceiver Modes Directional Peak Dir Pk Locate/OK 5 + Cable/Pipe SK + Mode SK + Spl Pk SK Toggle Special Peak Spl Pk Expanded Mode Locate/OK 5 + Cable/Pipe SK + Mode SK + Ind Pk SK ToggleDepth and Current Estimate Induction Peak Ind Pk Locating Frequencies Active Frequencies Auxiliary Frequencies Power FrequenciesPassive Frequencies Locating in Directional Peak Mode Rev G Locating Active Duct Probes Sondes Determining ADP Depth Locating Buried Sheath Faults and Earth Return Faults Transmitter Setup Pinpointing the Buried Fault Green Band Enabling/Disabling Marker Types Alert ModeLocating 3M Electronic Markers 3M iD Markers Single Marker Locate Press Locate/OK Dual Marker Locate 3M iD Marker Depth Passive 3M Electronic Marker Non-iD Depth Menu 6 + Data/Templat SK2 + User Templat SK2c Creating/Editing Templates for 3M iD MarkersCreating New Templates Rev G Editing Templates Menu 6 + Write Mode SK1 Writing 3M iD Markers Press Start Write SK Press Menu 6 + Write Mode SK1 Modifying Marker Data to be Written Rev G Reading 3M iD Markers Menu 6 + Data/Templat SK2 + Read History SK2a Reviewing Marker Read/Write HistoryRead History Capturing the GPS Coordinates Capture Mode / Mode GPS OperationWrite History SK Communicating with the GPS Device Menu 6 + COM Setup SK3 + GIS Path Mapping with GPS Creating Trace Templates Menu 6 + Com SK3 + GIS SK or PDA SK Aerial Faults Toning Additional Applications Connection Diagrams Cable Identification Help Mode Menu 6 + More SK4 + Help SK8 Self Test Of Receiver Menu 6 + More SK4 + Self Test SK7 Product Description And Optional Accessories Standard ConfigurationsProduct Description Direct Connect Cables Earth Contact Frame Optional 3M Accessories for 3M Dynatel Locators Receiver Specifications Specification Detection Depth 3M Non-iD Passive Transmitter Specifications Mode can display a fault resistance up to 10M Ω Environmental and Regulatory Specifications Rechargeable Battery Information Rev G Electrical Markets Division Important Notice