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Impulse Reflectometer TDR-400 The TDR-400 is a handy, light impulse reflectometer, processor controlled, with LCD display for check and locate faults in telecommunication and power cables. Technical data Display: LCD display, 120 x 32 pixel, illuminated Power supply: NiMH accumulator 6 V/ 700 mAh (5 x R3),...
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The amplitude on the cursor position can be set to the zero line by pushing the keys 1 and 2 simultaneously. Because the IRM 5 has its highest sensitivity in the area of the zero line, e.g. the graphical representation of the amplitude on the pulse peak can be seen. This function can be cancelled by pushing the key 3.
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In the case of breaks, contact faults in sleeves, short circuits or taps/splitter in the sector to be tested, the distance to the cable beginning can be determined by the pulse echo. If wide pulses are used for the measurement, the echoes are stronger, but faultless taps/splitter cause then strong echoes.
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