Amprobe TDR-400 Manual - Page 4

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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.

Zero adjustment of the transmitting pulse:

Select a storage place of the propagation factor and push key 1 and 2 simultaneously up to

„-_∏_-" appears on the display. Shift the transmitting pulse with key 1 or 2 so that the cursor is

located at beginning of the pulse.

Store this setting by pushing the keys 1 und 3 simultaneously.

Back to the normal operation with key 3.