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User Manual

Audio Frequency System Locator-Set
TG 20/50, TG 600
UL 30

Ref. No. 822-119

11/2005

BAUR Prüf- und Messtechnik GmbH

e-mail:

[email protected]

Tel.

+43/5522/4941-0

Raiffeisenstrasse 8, A-6832 Sulz/Austria

internet:

www.baur.at

Fax

+43/5522/4941-3

Содержание TG 20/50

Страница 1: ...ency System Locator Set TG 20 50 TG 600 UL 30 Ref No 822 119 11 2005 BAUR Prüf und Messtechnik GmbH e mail headoffice baur at Tel 43 5522 4941 0 Raiffeisenstrasse 8 A 6832 Sulz Austria internet www baur at Fax 43 5522 4941 3 ...

Страница 2: ...2 ...

Страница 3: ...cessing system or translated into another language without the written permission of BAUR Sulz Austria In the interest of our customers we reserve the right for modifications due to technical progress Illustrations descriptions and delivery content are therefore not binding This manual contains all information necessary for the correct handling and operation of the described system Before using th...

Страница 4: ...ing from any such use In such a case the risk shall be borne solely by the user The local safety and accident prevention regulations are always applicable to the operation of the unit Warranty At the customer s written request we undertake to repair or replace at our discretion and as quickly as possible all parts that become faulty as the demonstrable result of poor material faulty design or defe...

Страница 5: ... TG 20 50 into operation 18 4 Put TG 600 into operation 21 5 Put UL 30 into operation 24 5 1 Startup 24 6 Fault location 25 6 1 Acoustic fault location 25 6 2 Distance manhole 28 6 3 Sheath fault 29 7 Route tracing 33 7 1 Connection of frequency generator 34 7 2 Minimum and Maximum method 35 7 3 Depth determination 36 7 4 Terrain examination 37 7 5 Cable identification 37 7 6 Determination of join...

Страница 6: ...ls are amplified and indicated by the Audio Frequency Receiver UL 30 acoustically via the integrated loudspeaker or a headphone to be connected optically on the integrated LCD display In connection with a Surge Voltage Generator SSG the surge voltage impulse magnetic field is indicated on the pointer UL 30 when performing a coincidence measurement The impact noise is heard via headphone of the lou...

Страница 7: ...cally on the display Fields of application With its various sensors and by selecting specific tracing and measuring methods a wide range of applications is possible Routing of cables and metallic pipes Depth determination of cables and metallic pipes Cable selection Cable detection even on live cables and lines Location of cable joints and branches Accurate pin point fault location according to th...

Страница 8: ...sted multi core cables is possible As well cable tracing can e done Audio Frequency Generator TG 600 Description TG 600 The Audio Frequency Transmitter Locator TG 600 has been special designed for the pin pointing location of cable faults and joints Due to indication of input and output current selection of the correct adjustment is facilitated Beside the use for cable fault location also high fre...

Страница 9: ...nts 5 ON switch and mode selector 6 Button for battery control and instrument illumination 7 Button for indication of Iin 8 Button for switching measuring range x 0 1 for Iout 9 Button for automatic or manual impedance adjustment 10 Regulating switch for output current Interfaces 11 Mains connection 12 Connection for external battery 13 Output socket 14 Protective earth terminal 15 Connection for ...

Страница 10: ...ments 4 Mains ON 5 Mains OFF 6 Frequency selection 2 kHz 7 Frequency selection 10 kHz 8 Continuous operation 9 Impulse operation 10 Output power 60 VA 11 Output power 600 VA 12 Impedance selector switch Zi 13 Power control 14 Measuring range selector for output current 15 Push buttons for compensation capacitors Interfaces 16 Mains connection 17 Protective earth terminal 18 Output sockets 19 Fuse ...

Страница 11: ...ion or increase OK ON OFF button Loudspeaker Backlight Left for navigation or decrease Down for navigation or increase Up for navigation or increase Input sockets for sheath fault sticks Headphone outlet Socket for BM 30 SP 30 Removable rear cover with battery compartment ...

Страница 12: ...ented menu structure allows fast and easy operation of the UL 30 At main menu the application could be selected The following submenus contain the special fault location respectively tracing methods Fault location Route tracing Setup ...

Страница 13: ...Hz Therefore it is most suitable for pin pointing of flashover faults according to the Surge Voltage method Its special decoupled housing suppresses possible ambient noises Included into the BM 30 is a magnetic sensor to enable the propagation time measurement and a tracing of cable line while pin pointing The headphone KH 30 is connected to the Audio Frequency Receiver via a 3 pin jack plug 6 3mm...

Страница 14: ... circuit by condensers Using the switch on the handle of the detecting rod the frequency can be adapted to the signal frequency of the Audio Frequency Generator The hinged searching coil can be turned by 45 or 90 The 45 position is used for determination of the depth of buried cables ...

Страница 15: ...of Iout in A switchable via button Iin in A Battery test Indication of impedance levels with LED Output Non contacting pole terminals safe from contact and socket for loop antenna on side cover Power supply Mains connection 110 120 220 230 240 V 50 60Hz Power consumption 150VA at 50VA output power Internal lead acid battery 12V 9 5Ah External battery 12V 24V reverse battery protection Charging uni...

Страница 16: ... 10kHz other frequencies on request Operating modes Continuous operation and impulse operation Display 2 instruments for indication of Iin and Iout Reactive power compensation adjustable in 63 steps Power supply 110 120 220 230 V 50 60Hz Power consumption 1800VA at 600VA output power Overload protection Overtemperature switch off and indication Operating temperature 20 C to 40 C Dimensions 505 x 2...

Страница 17: ... frequencies on request Filter digital Üassive reception 50 60Hz mains signal amplification 0 38 dB propagation velocity range 0 96ms operating temperature 20 C 55 C protection water and dust protected power supply 4x1 5V cells IEC LR 6 battery life normal operation approx 50h weight 550g ...

Страница 18: ...ond to the local mains voltage Carry out battery test The integrated battery lead acid battery is protected by a low discharge protection circuit causing the TG20 50 unit to be switched off at a discharge voltage of 10 5V Before each mobile use and battery operation please check the battery state of charge Check state of charge using control button Charge battery If pointer of instrument is below ...

Страница 19: ... if line is zero potential Carry out galvanic or inductive connection 1 2 2a 4 Step Procedure 1 Connect earth lead 2a Make galvanic connection Connect a dead cable line to the two black sockets output 2b Make inductive connection Remove side cover and connect loop antenna 3 Turn output regulator completely to the right stop Observe max permissible voltage of connected line 4 Set mode selector to t...

Страница 20: ...b Press button to pos man as long as the desired adjusting level is reached 2 Adjust desired output current using the output regulator 3 Press button Iout instrument range is switched to 1A 4 Press button Iin The current consumption of the amplifier is indicated With battery operation Iin 3A battery 9Ah approx 3 hours of operating time Audio Frequency Generator TG20 50 is ready for operation Overl...

Страница 21: ... 230 V 50 60Hz or 110 120 V Only for mains operation The Audio Frequency Transmitter TG600 is only operating with mains supply 220 230V 50Hz 110 120V 60Hz Connection of TG600 3 1 2 Do not connect live cables and lines e g interference noises mains pick ups to the sockets output Danger of unit destruction Before connection always check if line is clear of voltage Connection Step Procedure 1 Connect...

Страница 22: ...terfering signal easier Do not apply with twist method Operation with reduced power For most fault location methods e g twist method a highest possible current in the cable is advantageous When tracing cables route determination and especially for cable selection current induction from adjacent lines must be avoided In such cases an output power of approx 1VA to max 100VA is sufficient Max output ...

Страница 23: ...0 3 Ω 2 Switch off all compensation capacitors Bulbs do not light up 3 Adjust input current Iin using power control regulator At an output frequency 2 kHz Iin 28 A At an output frequency 10 kHz Iin 21 A 4 Read output current Iout 5 Increase value of load selector switch until the output current Iout reaches a maximum at a constant input current Iin eg 5A 6 Carry out reactive power compensation Sta...

Страница 24: ...ded into two planes A special Switch Buttonallows the fast changing between working and config plane The first plane the so called working plane shows the important figures and allows necessary adjustments which are often needed The second plane config plane shows all adjustable parameters of the selected measuring method Only after activating the switch button changing of parameter settings are s...

Страница 25: ... switch to last measurement with related settings Acoustic location Distance manhole Sheath fault 6 1 Acoustic fault location For the acoustic fault location according to the Surge Voltage method a Surge Voltage Generator SSG and a ground microphone BM 30 is necessary additionally ...

Страница 26: ...el of sensitivity In case of magnetic signal receipt a symbol or number is displayed Volume Speaker Adjustment of headphones volume Gain Microphone Adjustment of microphone sensitivity The bargraph shows the current gain If groundmicrophone is lifted up from ground the microphone is switched soundless automatically Putting on the device again the signal will be heard after a delay of one second Fi...

Страница 27: ... impulse is evaluated Above the fault location the time difference is at minimum Carry out 2 to 3 measurements with the UL 30 unit at each measuring point with the same setting The results should not show too much deviation Then you can be sure that the measurement is correct and no faulty triggering has occurred due to ambient noises The time measurement is started by the magnetic impulse and wil...

Страница 28: ...changing Try to detect the maximum If maximum of bargraph found the black stripe is parallel to the cable Attention Pipes in earth as well as metallic objects on surface could affect this method In worst case results could be inverted 6 2 Distance manhole If no breakdown can be heard from a cable within a pipe over a bridge or similar buildings the distance manhole method has be done Choose Distan...

Страница 29: ...A impulse sequence SSG or a impulse block STG is sent to the cable under test The voltage drop at the fault location results in a step voltage which is indicated in the UL 20 with help of cable sheath fault sticks The UL 30 displays via bargraph and an arrow drag indicator the direction to the fault The drag indicator shows the direction to go until the next impulse has taken place Additional to t...

Страница 30: ...he higher the obtainable output current of the generator the better the twist effect on the surface can be heard Applications Cable selection determination of joints fault location on multicore lines and cables The twist method offers particular advantages for low voltage and signal cables where the maximum permissible voltage is less than 1kV The cable is loaded only slightly and the route tracin...

Страница 31: ...ting field a healthy core is used as inverse wire At the other end a short circuit bridge is installed The twisting field is located until short circuit is reached Directly behind the fault the field strength decreases ...

Страница 32: ...hod is integrated into the UL 30 It filters the basic noises and uses only the real oscillations for fault detection Adjustment of settings are possible at working plane of twist method Select suitable oscillation pick up by using Zoom ...

Страница 33: ...ively by using Audio frequency generator to do a active tracing At menu ROUTE TRACING following methods are selectable Last switch to last measurement with related settings Route Tracing Depth Twist method Also at route tracing the device is working with working and config plane At this planes following settings are possible Working plane Volume Speaker Loudness of loudspeaker adjustable Gain Sens...

Страница 34: ...ion method can cause fault measurements if used on underground lines e g in residential or industrial areas because the inverse current is also conducted via other cables and lines which are located by the UL 30 unit with a very strong audio frequency signal Clip on device AZ 10 The clip on device can be used with dead and live cables Applications Routing house connection water telephone gas Conne...

Страница 35: ...requency Transmitter TG20 50 to 10kHz frequency and 300 Ω impedance Applications Routing cable tracing and terrain examination for location of water pipes with rubber joints 7 2 Minimum and Maximum method Minimum method The detecting coil is vertical to the path of line Minimum audio frequency signal is directly above line Application depth determination exact cable tracing and pinpointing ...

Страница 36: ...n examination The picture beneath shows the working plane of maximum method 7 3 Depth determination For measuring the depth d of a conductor first determine the exact path of the cable subsequently place coil of detecting road at 45 C The minimum audio frequency signal is heard at the depth d at a corresponding distance from the path of the cable ...

Страница 37: ... audio frequency waveform 7 5 Cable identification As this method requires a high technical knowledge for cable identification the use of a the special instrument KSG 100 is recommended To prevent possible accidents due to inappropriate handling or misinterpretation of the cable selection it is generally recommended to use cable cutters according to EN 50340 and or a cable shooting devices The loc...

Страница 38: ...d set searching coil parallel to the cable move slowly over the cable to be traced The twist signal is only received from the cable supplied with current from the Audio Frequency Generator In case of scattering reduce feed current Cable selection with selecting coils AS2 30 AS10 30 ...

Страница 39: ...signal via separating filter or clip on device AZ10 use selecting coil AS10 30 7 6 Determination of joints Twist method Also for this application the search coil SP 30 is used A signal of a frequency generator is sent to the cable Therefore joints can be determined with the SP 30 The field strength is amplified by sleeves and branches enabling a accurate pin pointing of their location ...

Страница 40: ... similar principle Therefore the special filter for twist method is again integrated into the UL 30 It filters the basic noises and uses only the real oscillations for fault detection Adjustment of settings are possible at working plane of twist method ...

Страница 41: ...concerning repair and maintenance works UL 30 change of batteries Empty battery status will be displayed approx 30 min before switching off Open battery case Battery type 4 x 1 5V Mignon AA LR 6 Change batteries watch polarity Close battery case Check function of UL 30 ...

Страница 42: ...voltage F1 F2 Ø 6 3 x 30 mm 110 V 120 V T4A 250V T4A 250V 220 V 230 V T2A 250V T2A 250V 240 V T2A 250VT2A 250V Internal fuse F1 T8A 250V Ø 5 x 20 mm Audio Frequency Generator TG600 F2 F1 Set mains voltage F1 F2 Ø 5 x 20 mm 110 V 120 V T16A 250V T16A 250V 220 V 230 V T8A 250V T8A 250V Internal fuse F3 F4 T0 5A 250V Ø 5 x 20 mm Depending on set mains voltage insert specified fuses F1 F2 ...

Страница 43: ... externally visible damage should be obtained from the carrier immediately The extent and probable cause of the damage should be stated as well For damage which is discovered during unpacking the responsible transportation company should immediately be requested verbally and in writing registered letter for loss assessment and should be made responsible at the same time We also refer to our Genera...

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