valutazioni - 5, GPA: 4.2
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Facilità d'uso
To select Special Peak mode, press and hold then press . While in this mode the Peak flag will flash. Note: While tracing cables in any mode, keep the Receiver handle in line with the suspected cable path. See section Initial Receiver Configuration (Page 3) to set the power frequency to 50 Hz or 60 Hz. The Receiver can be tuned to locate 3 different harmonics of the chosen power frequency. H50 Hz or H60 Hz (high harmonic): Best for general locating of passive power. L50 Hz or L60 Hz (low harmonic): Works best on primary power cables. May be used when high harmonic is weak or erratic. 100 Hz or 120 Hz: For locating rectified AC power signals, often found on pipelines using impressed current cathodic protection. When a Power frequency is selected, the Hz symbol will flash, indicating that alternate frequencies are available. To change the selected power frequency, press and hold then press to select the next Power frequency. Page 9 DETERMINING CABLE DEPTH AND CURRENT Place the Receiver Antenna on the ground directly above the cable with the handle parallel to the path. Press and the display will indicate the cable depth and relative current . Current is displayed in the lower left corner of the display. Press twice to continue tracing. You may also press to return to Trace mode. LOCATING AN ACTIVE DUCT PROBE (ADP) Press to turn the Receiver on. Press to select the 33 kHz frequency. With the Receiver handle perpendicular to the conduit path, locate the ADP position by moving along the path until a peak is found. Press when the bar graph remains either fully open or fully closed. Refer to the ADP operating instructions for further information. Determining ADP Depth Place the Receiver Antenna on the ground directly above the located ADP position maintaining the handle orientation perpendicular to the path. Press twice to display ADP depth . To return to trace mode, press or . Page 10 LOCATING EMS MARKERS EMS markers may be detected and located using either the 3M Dynatel™ 2205 or 2206 EMS Marker Locating Accessory. To attach the accessory, slide the Receiver horizontally into the EMS Marker Locating Accessory mounting slot. Make sure the locking button holds the Receiver securely in the slot. To separate the units, press the locking button down and slide the Receiver out of the EMS Marker Locating Accessory mounting slot. Locating Markers while Tracing Cable Path To detect markers while tracing the cable path, set the 2205 or 2206 accessory mode switch to the Alert position, and trace the cable path normally. The internal buzzer in the accessory will alert you to the proximity of a detected marker. Locating Markers using the Receiver If the buzzer response is too broad, the exact marker position may be pinpointed by using the Receiver. Select 577 Hz or 33 kHz on the Accessory. Use a different frequency from the tracing signal. Turn the Receiver ON and set the frequency to match the Accessory setting. Note: The initial Receiver gain in Peak mode is optimized for interfacing with the 2205 or 2206 Accessory while searching for a marker. Press only when a marker is detected and the signal is too strong. To search for a new marker, reset the Receiver gain to the initial setting by turning its power OFF and back ON. Refer to the EMS Marker Locating Accessory operating instructions for further information. Page 11 CABLE OR PAIR IDENTIFICATION Transmitter Setup Transmitter setup is the same to identify cables or pairs. However, Receiver setups are different. Perform a battery test; then, connect the Dyna-Coupler to the Transmitter front panel jack using the coupler cable. Note: Cable Identification requires two Dyna-Couplers: one at the Transmitter and one at the Receiver. Clamp the Dyna-Coupler around either the cable or both tip and ring of a pair and make sure the jaws fully close. Press to turn the Transmitter on and select the 33 kHz frequency. LED indicates the frequency selection. Press to change the high output level. Receiver Setup Connect a second Dyna-Coupler to the Receiver accessory jack another coupler cable. Note: Cable Identification requires two Dyna-Couplers: one at the Transmitter and one at the Receiver. Press to turn the Receiver on. Press to select the highest toning frequency. Check the first cable in the group by clamping the Dyna-Coupler around the cable. Press and observe the numeric display, which is relative signal strength. Remember the number and continue by clamping the Dyna-Coupler around the next cable in the group. If the signal strength is greater than the previous observation, press . If the signal strength is less than before, ignore it. After checking all the cables in the group, the cable with the highest reading is the one being identified. Page 12 PAIR IDENTIFICATION Receiver Setup Connect the inductive probe to the Receiver accessory jack using the probe cable. Press to turn the Receiver on. Press to select the 33 kHz frequency. Insert the Probe into the bundle of pairs (or the ...
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