CablePipeFault Advanced Locator 2250M2273M Series User Manual
Here you can view all the pages of manual CablePipeFault Advanced Locator 2250M2273M Series User Manual. The 3M manuals for Locator are available online for free. You can easily download all the documents as PDF.
Page 31
78-8130-6150-0 Rev G 31 − There are two options for measuring depth. Live depth is a continuous measurement. 1-Shot Depth is an averaging of the depth reading over a short period of time. When in 1-Shot mode, the unit will average the depth reading for three seconds, and then display the result on the display. Press Depth [SK] to alternate between the two modes. − Five depth readings can be saved with the time, date and relative current measurements. 3. Pressing Save [SK] will place each...
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32 78-8130-6150-0 Rev G 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...
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78-8130-6150-0 Rev G 33 4. Press Aux [SK Toggle] until the desired frequency is displayed in the softkey command [9] (“Aux” 512, 560, 333 Hz, or user defined frequencies). 5. Press Locate/OK [5] to return to Locate mode. 10. Locating in Directional Peak Mode The following are instructions for locating a buried pipe or cable using the direct connect method and the directional peak (Dir Pk) mode. Other methods of connection and tracing modes/features are explained in previous sections. 1. Insert...
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34 78-8130-6150-0 Rev G 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...
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78-8130-6150-0 Rev G 35 Note: In order to measure the depth and current accurately, the operator must pinpoint the target pipe or cable, and the receiver handle should be in-line with the target path. − While in Dir Pk mode, find the highest Signal Strength [10]. − Lower the tip of the receiver to the ground. Twist the receiver left and right while watching the signal strength. − When the highest Signal Strength [10] reading is displayed, the handle of the receiver is in line with the target...
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36 78-8130-6150-0 Rev G 4. Press Sonde Depth [SK] to read ADP Depth − The depth to the ADP is displayed in units, as specified in the receiver set up menu. − Five Sonde depth readings can be saved with the time and date measured. Press Mem Select [SK] after the Sonde depth displays. − Press Mem Select [SK] to select a specific memory location (M1-M5) or select Save [SK]. Save [SK] will place each entry in sequential order in memory (M1–M5) until five readings have been stored. The unit...
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78-8130-6150-0 Rev G 37 5. Press on: Ohm-meter/Fault Locate/Tone [T-2] to turn the transmitter on and place the transmitter in Ohm-meter mode. − The resistance of the fault will be displayed in ohms on the transmitter Digital Display [T-4]. − Resistance less than 50KΩ = Significant fault exists − Resistance 50KΩ to 1.0MΩ = High resistance fault exists (May or may not cause problems yet, but gets worse with time.) − Resistance greater than 1.0MΩ = No significant fault exists Note: The fault...
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38 78-8130-6150-0 Rev G 7. Continue along the cable path, re-inserting the 3M™ Earth Contact Frame probes every few steps while watching the receiver bar graph. The bar graph on the receiver will fill toward the right side of the display (green Fault Finding Direction Indicator [13] (See illustration below)), indicating that the fault is ahead of the operator (in the direction of the green-banded leg of the Earth Contact Frame). Transmitter Signal Ground Fault location Green Band...
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78-8130-6150-0 Rev G 39 10. After a fault is located and pinpointed, move the 3M™ Earth Contact Frame about one Earth Contact Frame width away from the fault and insert it in the ground with the green-banded leg towards the fault. Compare the numeric signal level with the fault level reference signal indicated in the lower left box labeled Ref. If the reading is within 12 dB of the reference signal, the operator has found the major fault. If the fault reading does not fall within 12 db of the...
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40 78-8130-6150-0 Rev G − The receiver display will add the Alert bar graph and the type of marker to the display with a prompt to adjust the marker gain. 4. Press the Gain [4] until only a small mark on the marker bar graph is visible. 5. Press Locate/OK [5] to save the marker gain setting. − The display will return to Special Peak Cable Locate / Alert On. − If the selected type of utility marker is detected, a second audio tone will emit from the unit and the marker bar graph will...