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Cable fault locator

TDR-TA3.3T

USER MANUAL

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Summary of Contents for TDR-TA3.3T

Page 1: ...Cable fault locator TDR TA3 3T USER MANUAL...

Page 2: ...operation test 15 6 2 Switching on of the device 15 6 3 Device connection to the researched line 15 6 4 Measuring the length of the researched line 16 6 5 Measuring the coefficient of line shortening...

Page 3: ...___________________________________________ ________________________________________________________________________ 3 9 Device calibration 22 10 Transportation and storage 23 11 Marking 23 12 Accepta...

Page 4: ...ics of the cable fault locator TDR TA3 3T Warranty terms do not cover the cases of misuse of the device or use of the device not in accordance with the rules listed in a given UM UM is intended for ac...

Page 5: ...measuring the cable length measuring the distance to wave impedance irregularities or defects measuring the coefficient of a line shortening at its known length definition of nature of damage display...

Page 6: ...s Measurement subranges windows 30 m 60 m 120 m 240 m 480 m 960 m 2400 m 4800 m 2 2 Distance measurement permissible basic reduced error limits time delay in the subranges windows 0 42 of the subrange...

Page 7: ...of 1 to 3 0 84 2 6 Receiving path sensitivity when the signal exceeds the noise level twice on all the subranges windows should be not less than 1 mW 2 7 Agreed resistances range is from 30 to 400 Ohm...

Page 8: ..._ ________________________________________________________________________ 8 3 Product and delivery set The TDR TA3 3T delivery set consists of domain reflectometer TDR TA3 3T 1 item connecting cable...

Page 9: ...egularity type see Picture 2 The reflected pulses return to the device in some time from the moment of sending the probe pulse Knowing the electromagnetic wave propagation speed along the line and the...

Page 10: ...point of a high resistance the second cursor that means a cable breakage The condition showed in the waveform is called after typical breakage The reflection with a signal polarity change is equivale...

Page 11: ...ath The value of coefficient of shortening can be defined experimentally knowing the length of cable The error of the distance to irregularity is to be defined with discreteness of the indicator 320 d...

Page 12: ...3 3T design 4 2 The control and displaying tools keyboard grips location and function 4 2 1 Power supply The power supply of the device is provided with four built in batteries AA 1 2 W 2700 A Hr The...

Page 13: ...used for a quick switching on off of the device display s lightning see issue 6 12 4 2 8 The GAIN button is used for a quick transition to the Intensification selector for the gain factor adjustment s...

Page 14: ...hortening window length of pulse The current parameters values are showed on the display 4 2 15 The and buttons in MEASUREMENT mode are used to move a measure cursor to the left or right 4 2 16 The di...

Page 15: ...s acquainted with the given Manual are allowed to operate TDR TA3 3T 5 2 The TDR TA3 3T has no life threatening voltage 5 3 The staff operating on different tracks is obliged to follow the safety rule...

Page 16: ...the device ATTENTION if the SECURITY button green indicator is not working the operation is prohibited because the researched line is under the electric voltage It is required to disconnect the device...

Page 17: ...rms in the MEASUREMENT mode The reflected pulse of positive polarity marks the cable breakage It is necessary to set the cursor to the pulse forefront due to measure the distance The RI 303TM defines...

Page 18: ...joints and breaks Picture 6 1 Sockets joints breaks Reflection from irregularity that distinguishes the cables joint is expressed in a positive polarity response The quality of a cable splice should...

Page 19: ...ance to the sodden part of cable Picture 6 3 The sodden part of cable The irregularity connected with the appearance of moisture in the core of cable refers to extended irregularity The sodden part of...

Page 20: ...he cable the pulse reflected from the end of cable might completely disappear The reflected pulse that by its shape indicates the availability of a parallel tap in the cable line is to be observed in...

Page 21: ...rol in the TDR TA3 3T is carried out according to a pictograph in the top right corner of the display the symbol means the full charge of the batteries the symbol means that the batteries need to be c...

Page 22: ...us can be assessed by the indicator in the upper left corner of the screen in MEASUREMENT mode 8 3 The device is equipped with a battery discharge control system see issue 6 11 8 4 Charge the battery...

Page 23: ...ortation and storage 10 1 TDR TA3 3T packed in containers should be transported in closed vehicles of any type at any distance and stored under conditions established by a group of 4 to GOST 22261 Whe...

Page 24: ...rviceable and found fit for use Release date ____ ______________ 20___ year LS The company representative __________________ _______________________ signature name Cable fault locator TDR TA3 3T seria...

Page 25: ...acture 13 3 The warranty period of storage is set 6 months from the date of manufacture TDR TA3 3T 13 4 The manufacturer shall within the warranty period eliminate the identified defects or replace th...

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