Оценок - 6, средний балл: 3.3
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Фрагмент инструкции
2 Installing or Replacing the Batteries ........................................ 2 Initial Receiver Configuration .................................................. 3 Receiver Battery Test ................................................................ 3 Transmitter Battery Test ........................................................... 4 Using External DC Power and 5 Watt Output .......................... 4 Locating a Buried Cable ........................................................... 5 Transmitter Setup ................................................................ 5 Receiver Setup .................................................................... 10 Determining Cable Depth and Current ..................................... 13 Locating Sheath Faults.............................................................. 14 Locating an Active Duct Probe ................................................. 16 Locating EMS Markers ............................................................. 17 Toning Aerial Faults .................................................................. 18 Cable or Pair Identification ....................................................... 19 Optional Accessories................................................................. 21 Technical Information ............................................................... 22 Page 1 INTRODUCTION The 3M™ Dynatel 2250E/2273E Advanced Cable and Fault Locator consists of a Transmitter and a Receiver for locating buried cables or Active Duct Probes (sondes). It also measures and pinpoints sheath faults in buried cables (2273E only) and conductor faults in aerial cables. The transmitter provides four frequencies to accommodate varying factors such as distance, cable type, or soil conditions. If desired, all four frequencies may be transmitted at once. The Transmitter also provides a separate Tone function for identifying cables and pairs. The Receiver provides four locating modes to accomplish fast or difficult tracing and to pinpoint or verify a conductor. The Receiver detects 50 or 60 Hz AC Power signals and low frequency (LF) radio signals re-radiated from local broadcast transmitters. It also measures the signal current in a conductor and displays its magnitude. The depth of buried cables or sondes may also be displayed. Note: For more detailed locating instructions and advanced locating techniques, ask your 3M sales representative for a free publication called Cable and Pipe Locating Techniques. INSTALLING OR REPLACING THE BATTERIES 6 'LR14' cells 6 'LR6' cells Caution! Do not connect batteries improperly, charge or dispose of in fire. Batteries may leak or explode and cause personal injury. Always remove batteries when storing the units. Battery Disposal: Since regulations vary, consult applicable regulations or authorities before disposal. Page 2 INITIAL RECEIVER CONFIGURATION Display depth units (inches, feet and inches, or centimeters) may be changed while holding and pressing . For each press, one of three units will display. To change the passive Power frequency, press and hold then press to toggle between 50 or 60 Hz as displayed in the lower left corner of the display. To change the Null bar graph display mode, press and hold then press to toggle between normal Null bar graph display (Null flag will flash) and inverse Null bar graph display (Null flag is solid). See section About Trace Modes (page 11) for further information. RECEIVER BATTERY TEST Battery Test Indicator Battery Level Mark The Receiver batteries are tested for two seconds every time the unit is turned on. The time interval can be extended by pressing and holding . During the battery test, the bar graph should extend to the right of the battery level mark, otherwise replace the batteries. Note: When batteries are low, the battery test indicator will flash. Page 3 TRANSMITTER BATTERY TEST To test the Batteries, press and hold . Listen to the tone and watch the display. • solid tone and 'OK' indicates batteries good; • beeping tone and 'LO' indicates batteries low; • no tone and '- -' indicates replace batteries. Note: The battery test indicates battery condition for normal output levels. if the unit resets when the high output level is selected, use the normal output level or replace the batteries. USING EXTERNAL DC POWER AND 5 WATT OUTPUT The Transmitter can be operated from and external 12VDC source as well as its internal batteries. Use the supplied cigarette lighter adapter cable to connect the DC power from a vehicle's battery source to the Transmitter's external power jack located next to the output jack. Note: The internal batteries will not be recharged with external DC. 5 Watt Output An external DC source is required for 5 watt output. To select 5 watt operation, press once for high output (3W) and again for 5 watt operation. The High Output flag will turn on for 3W and flash for 5W. Page 4 LOCATING A BURIED CABLE Transmitter Setup Note: Key descriptions can be f...
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