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LIM-05

pulse fault locator user manual

Software version: 17.05

USER MANUAL

EZUP “LEVR” s.c.

03-193 Warsaw
ul. Krzy

ówki 5

tel./fax: +48 22 639 85 66

Ver. 17.12

Содержание LIM-05

Страница 1: ...LIM 05 pulse fault locator user manual Software version 17 05 USER MANUAL EZUP LEVR s c 03 193 Warsaw ul Krzy wki 5 tel fax 48 22 639 85 66 Ver 17 12...

Страница 2: ...0 FN key 9 4 11 ENT key 10 4 12 ESC key 10 4 13 key 10 4 14 and keys 10 5 Main menu 10 5 1 Kana Channel option 10 5 2 Start Stop option 10 5 3 Kalibracja Calibration screen 10 5 4 Historia History opt...

Страница 3: ...16 Calibration procedure Kalibracja Calibration option D ugo p tli Loop length entry 16 Channel number entry 18 Initiate or stop automatic measurements 18 Creating and recording the reference run 18...

Страница 4: ...t calculates the distance between the measurement station and the point of reflection i e location of the fault The method of fault location in preinsulated district heating pipelines with a detector...

Страница 5: ...epicts the actual distance in m Figures 1 and 2 depict the method of presentation of measurement information Fig 1 Depiction of the reflected measurement pulse on the detector screen in case of a leak...

Страница 6: ...ength of the section of the alarm wire between these cursors x default axis x y default axis y Up Up voltage thresholds for initiation of automatic fault detection and indication the dead area is 2Up...

Страница 7: ...he operating conditions return to normal 3 1 Connection of the locator to the alarm system of the district heating pipeline The locator is connected to the carrier pipe and copper sensor wire with a c...

Страница 8: ...nment and the speed of light propagation in vacuum For district heating pipelines with a copper sensor wire this coefficient adopts values of the 0 91 0 93 range 4 2 2 zoomH key Press the 2 zoomH key...

Страница 9: ...of the screen after pressing the 6 K2 key 4 7 7 PING key Activating the PING function will force a measurement cycle in the selected measurement channel and display the measured run Depending on the...

Страница 10: ...ia Reference run 8 Info 5 1 Kana Channel option This option can be used to display measurement information about one of the monitored sections of the district heating pipeline To select the channel en...

Страница 11: ...iowy Input run option enables presentation of the collected digital data in the form of a chart These data refer to the last measurement When the input run is displayed the screen will display a descr...

Страница 12: ...ion method also ensures that the image corresponds to reality For instance if a fault occurs near the end of the network it will be represented near the end of the x axis and not for instance in the c...

Страница 13: ...ge value of measured results i which will be recorded as the reference run See section 0 6 5 Czas martwy Dead time entry The automatic measurement cycle of the fault locator consists of measurements c...

Страница 14: ...nitial stages of its development The shape of the reflected pulse will be represented within the range of voltage thresholds determining the measuring range Extending the voltage measuring range will...

Страница 15: ...ce of this message means that there is no communication between the computer and the locator In such a situation make sure that the devices are correctly connected and check the status of the selected...

Страница 16: ...ed only after the locator screen displays the run Calibration procedure Kalibracja Calibration option D ugo p tli Loop length entry Note Locator calibration should be carried out 30 minutes after the...

Страница 17: ...he section of the x axis visible on the chart does not reflect the actual length of the alarm wire In section 3 increased length of the line was specified precisely in order to ensure that the image o...

Страница 18: ...on of automatic measurements is indicated by the AUTO description It will appear in the bottom right corner of the screen Stopping automatic measurements will cause the description to disappear The se...

Страница 19: ...1 10 0 M Ma ai in nt te en na an nc ce e o of f t th he e L LI IM M 0 05 5 i in ns st tr ru um me en nt t A clean dry cloth should be used to remove dust from the housing of the instrument Other dirt...

Страница 20: ...range 2047 mV Maximum measurement sensitivity 1 mV pixel Sensitivity threshold voltage range 1 1024 mV Dead time range 1 255 min Methods of communication with external devices Alarm output volt free r...