Biddle L1070_UG 电路图.pdf

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1、 Instruction Manual AVTM651070 for L1070 and L1071 Portable Locator Catalog No. 651070 and 651071 High Voltage Equipment Aparato de Alto Voltaje Read the entire manual before operating. Antes de operar este producto lea este manual enteramente. AVO International 510 Township Line Road Blue Bell, PA

2、19422 U.S.A. (215) 646-9200 RadioFans.CN 收音机爱 好者资料库 L1070 and L1071 Portable Locator Instruction Manual Copyright March 1998 by AVO International All rights reserved. Reproduction without written permission is prohibited. Specifications are subject to change without notice. RadioFans.CN 收音机爱 好者资料库 T

3、ABLE OF CONTENTS Section Page 1 Introduction.1 Receiving Instructions.1 General Information.1 2 Safety.3 Precautions.3 Warning and Caution Notices .4 3 Specifications.5 Receiver.5 Transmitter.5 Battery Charger.6 4 Transmitter Operation.7 Controls and Indicators .7 Selecting the Locating Method.8 Ac

4、Resistance Indications .9 Transmitter Rechargeable Battery Option.9 Power Utility Connection.10 Telco Circuit Connection.11 Flexible Coupler Connection.12 Inductive Connection .13 Direct Connection .14 Notes on Selecting the Tracing Signal.15 Continuously Grounded Circuit.16 Telephone Direct Shield

5、Connection .17 Telephone Direct Pair Connection.18 5 Receiver Operation.19 Controls and Indicators .19 Locating Cable or Pipe.19 Peak Mode Locating.20 Null Mode Locating.21 Absolute Signal Strength.21 Signal Strength Adjusted for Depth (Current Measurement).22 Gain Change Indication.23 Passive 50/60

6、 Hz Locating.23 Push-Button Digital Depth.23 Depth Measurement 45Angle Method.24 Offset Magnetic Field Identification.25 6 Fault Locating.26 Introduction.26 Ground Return Probe .26 7 Service .30 Maintenance.30 Repair.30 Warranty .31 ii RadioFans.CN 收音机爱 好者资料库 LIST OF ILLUSTRATIONS Figure Page 1 Tran

7、smitter Controls and Indicators .7 2 Multiple Grounded Circuit Connection.10 3 Multiple Ground Power Utility Application.10 4 Multiple Ground Telco Application.11 5 Flexible Coupler Connection.12 6 Inductive Connection.13 7 Inductive Connection 30 Angle.13 8 Direct Connection.14 9 Continuously Groun

8、ded Circuit.16 10 Telephone Direct Shield Connection.17 11 Telephone Direct Pair Connection.18 12 Receiver Controls and Indicators.19 13 Locating the Cable or Pipe.19 14 Determine Cable Path in Peak Mode.20 15 Depth Measurements 45Angle Method.24 16 Signal Return Through an Insulation Fault to Earth

9、.26 17 Collapsible Ground Return Probe.27 18 Ground Return Probe Insertion.27 19 Spoked Wheel Return Paths .28 20 Ground Return Probe Fault Locating.28 21 Ground Return Probe-Receiver Meter Response with Distance.29 22 Faults Beneath Paved Surfaces.29 iii Section 1 Introduction Receiving Instruction

10、s Check the equipment received against the packing list to ensure that all materials are present. Notify AVO International of any shortage. Telephone (215) 646-9200 and ask for the customer service department. Examine the instrument for damage received in transit. If damage is discovered, file a cla

11、im with the carrier at once. Prepare a detailed description of the damage and notify AVO International. This instrument has been thoroughly tested and inspected to meet rigid specifications before being shipped. It is ready for use when set up as indicated in this manual. General Information Thanks

12、for purchasing the BIDDLE L1070 or L1071 Portable Locator. The portable locator will help you locate and trace the routes of buried power cables, cable television cables, gas and water pipes, sewer lines, telephone cables, and fiber-optic cables. When used with the accessory ground return probes, th

13、e portable locator will pinpoint faults on most direct buried secondary cables and some direct buried primary cables. The transmitter transmits a special signal on the cable under test. The receiver receives the signal and indicates how strong it is. Microprocessors in both units process the informa

14、tion and allow you to determine the path of the underground cable. Supplied Components 1. Receiver unit 2. Transmitter unit 3. Red/black test cord 4. Instruction Manual AVTM651070 5. Eight 1.5 V D-size batteries (for L1070 nonrechargeable transmitter only) 6. Six 1.5 V C-size batteries 7. Ground rod

15、 8. Ac battery charger (for L1071 rechargeable transmitter only) 9. Carrying case Options 1. Ground return probe 2. Carrying case for the ground return probe 3. Flexible coupler 4. Dc battery charger (automotive) 1 Preparation for Use Remove the receiver from the case. Locate the battery compartment

16、. Install the six 1.5-V C-size batteries as marked on the battery holder. Install the battery cover and tighten the retaining screw. Remove the transmitter from the case. Locate the battery compartment on the bottom of the transmitter. Remove two screws from the battery compartment door. Install the

17、 eight D-size batteries as marked on the battery holder. Install the battery cover and tighten the two retaining screws. 2 Section 2 Safety Precautions The L1070 and L1071 Portable Locators and the recommended operating procedures have been designed with careful attention to safety; however, it is n

18、ot possible to eliminate all hazards from electrical test equipment or to foresee every possible hazard that may occur. It is therefore essential that the user, in addition to following the safety rules in this manual, also carefully consider all safety aspects of the test before proceeding. Safety

19、is the responsibility of the user. Use suitable barriers, barricades, and warnings to keep people not actually engaged in the test at a safe distance. Make sure that no one can make contact with energized parts of the test equipment and the specimen under test. Treat all terminals of power equipment

20、 as a potential electric shock hazard. There is always the possibility of voltages being induced at these terminals because of proximity to energized high-voltage lines or equipment. Always turn the transmitter power off before touching any terminals. Always disconnect test leads from the cable unde

21、r test before attempting to disconnect them from the portable locator. Never connect the test leads to a cable that does not have a safety ground strap in place. Never disconnect the test leads from a cable that does not have a safety ground strap in place. The safety ground connection must be the f

22、irst made and the last removed. Any interruption of the grounding connection can create an electric shock hazard. Observe all safety warnings marked on the equipment. These warnings identify areas of immediate hazard which could result in personal injury or loss of life. Do not use this equipment to

23、 fault locate on any cable which is likely to be near enough to an energized cable to allow a burn through of the insulation of the energized cable. This situation may occur when the cables are located in a common trench, duct or tray (for example, three-phase systems). Do not operate the equipment

24、with protective covers removed. Operation without the protective covers presents an electric shock hazard. Use all practical safety precautions to prevent contact with energized parts of the equipment and related circuits. Use the recommended grounding and connection procedures. Make sure that the e

25、quipment is grounded properly. Any interruption of the grounding connection can create an electric shock hazard. 3 Refer to IEEE 510-1983 IEEE Recommended Practices for Safety in High-Voltage and High-Power Testing for additional information. Do not use the portable locator or its accessories with a

26、ny device or for any purpose other than as specifically described in this manual. Misuse of this equipment can be extremely dangerous. Never connect the portable locator to energized equipment. Do not use in an explosive atmosphere. The L1071 Portable Locator uses rechargeable batteries. Replace onl

27、y with sealed lead-acid batteries as specified in Section 3, Specifications. Danger of explosion can result if the wrong batteries are used. If the portable locator is operated in accordance with the safety precautions described, and if all grounds are correctly made, rubber gloves are not necessary

28、. As a routine safety procedure, however, some users require that rubber gloves be worn, not only when making connections to the high-voltage terminals but also when manipulating controls. AVO International considers this an excellent safety practice. Users of high-voltage equipment should note that

29、 high-voltage discharges and other sources of strong electric or magnetic fields may interfere with the proper operation of heart pacemakers. Personnel having heart pacemakers should obtain expert advice on possible risks before using this equipment or being close to equipment while it is in operation. Warning and Caution Notices Warning and caution notices are used throughout this manual where applicable. These notices appear in the format shown below and are defined as