3M 2273M-iD, 2250M-iD manual Rev G

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2.Turn the transmitter on by pressing Ohms [T-2]. The continuity of the circuit will be measured. The results are displayed [T-4] in ohms and as a tone.

−− If the continuity of the circuit is very good (the reading on the display is less than 3K Ω. and a solid tone from the transmitter is heard) all frequencies can be used to locate. Always use the lowest frequency available (for example, 577 Hz). Lower frequencies are less likely to ‘bleed over’ to other cables in the same area, and are very good for tracing over long distances.

−− If the circuit reads more than 3K Ω., but less than lOK Ω (indicated by a beeping tone from the transmitter) it will be necessary to use a higher frequency than 577 Hz in order to locate the cable/pipe.

−− If the circuit reads more than lOK Ω., it will be necessary to use an RF signal such as 33 kHz or 200 kHz.

−− If there is no tone and the transmitter indicates that there is an open circuit (OL in the display) this could be an indication of a poor ground, or an open-ended cable or pipe. Use one of the higher frequencies available, at high or maximum output power level. If it is an open-ended cable or pipe, the receiver's response will decrease suddenly at the site of the clear or severed end.

Note: In the ohms mode, the transmitter can detect voltage as well as ohms. If a low voltage is detected, the display will alternate between displaying ohms and volts. When displaying ohms, the flag over the Ω symbol will be visible. When displaying volts, the flag over the ‘V' will be visible. When the voltage magnitude is sufficient to impair the accuracy of the ohms measurement, only voltage will be displayed. If the voltage is AC, a sine wave will be visible on the display [T-4]. If a high AC voltage is detected, a rapid beeping tone will be heard.

3.Press Trace [T-3] repeatedly until the desired frequency appears on the display.

4.Press Output Level [T-5] to select high or maximum output power level for longer tracing distances or deep pipe/cable.

22	78-8130-6150-0 Rev G

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Contents 3M Dynatel Contents Rev G Rev G Rev G Safety Information Intended UseAbout This Manual Transmitter Battery Installation Quick StartReceiver Battery Installation Cleaning Service and Accessories3M Dynatel Transmitter 2273 Keypad and Connector Definitions Rechargeable Battery Maximum Transmitter Output3M Dynatel Receiver 2250M Key Pad and Display Definitions Dynatel3M Dynatel Receiver 2273M Key Pad and Display Definitions Menu Displays Main MenuRev G Rev G Select Depth Units Configuring The ReceiverSetting the Receiver Clock Selecting a LanguageEnabling/Disabling Frequencies Menu 6 + More SK4 + Setup SK6 + More SK6d + Tone Freq SK6jCreating User Defined Frequencies Filtering Power Frequency Interference Selecting Locating AudioBuried Cables And Pipes Transmitter Connections Direct Connect MethodRev G Dyna-Coupler Method Non-Sweeping Passive 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 Modes Locate/OK 5 + Cable/Pipe SK + Mode SK + Dir Pk SK ToggleLocate/OK 5 + Cable/Pipe SK + Mode SK + DirNull SK Toggle Directional Peak Dir PkLocate/OK 5 + Cable/Pipe SK + Mode SK + Spl Pk SK Toggle Special Peak Spl PkDepth and Current Estimate Expanded ModeLocate/OK 5 + Cable/Pipe SK + Mode SK + Ind Pk SK Toggle Induction Peak Ind PkLocating Frequencies Active FrequenciesPassive Frequencies Power FrequenciesAuxiliary Frequencies Locating in Directional Peak Mode Rev G Locating Active Duct Probes Sondes Determining ADP DepthLocating Buried Sheath Faults and Earth Return Faults Transmitter SetupPinpointing the Buried Fault Green Band Locating 3M Electronic Markers 3M iD Markers Alert ModeEnabling/Disabling Marker Types Single Marker Locate Press Locate/OKDual Marker Locate 3M iD Marker DepthPassive 3M Electronic Marker Non-iD Depth Creating New Templates Creating/Editing Templates for 3M iD MarkersMenu 6 + Data/Templat SK2 + User Templat SK2c Rev G Editing Templates Menu 6 + Write Mode SK1 Writing 3M iD MarkersPress Start Write SK Press Menu 6 + Write Mode SK1 Modifying Marker Data to be WrittenRev G Reading 3M iD Markers Read History Reviewing Marker Read/Write HistoryMenu 6 + Data/Templat SK2 + Read History SK2a Write History SK Capturing the GPS Coordinates Capture Mode / ModeGPS Operation Communicating with the GPS DeviceMenu 6 + COM Setup SK3 + GIS Path Mapping with GPSCreating Trace Templates Menu 6 + Com SK3 + GIS SK or PDA SKAerial Faults Toning Additional ApplicationsConnection Diagrams Cable IdentificationHelp Mode Menu 6 + More SK4 + Help SK8Self Test Of Receiver Menu 6 + More SK4 + Self Test SK7Product Description Product Description And Optional AccessoriesStandard Configurations Direct Connect Cables Earth Contact FrameOptional 3M Accessories for 3M Dynatel Locators Receiver Specifications SpecificationDetection Depth 3M Non-iD Passive Transmitter Specifications Mode can display a fault resistance up to 10M ΩEnvironmental and Regulatory Specifications Rechargeable Battery InformationRev G Electrical Markets Division Important Notice