Do TDRs require calibration?

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Even though there is a calibration service offered by Radiodetection/Riser Bond for TDRs, it is normally not required. Calibration is more often performed at the time of replacement of the two (2) internal batteries: a NiMH rechargeable battery, plus a “button type” back-up battery on the main board. This should happen approx. every three (3) years.

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