V1.0 V1.0 QUICK GUIDE Resistance diagnostics for troubleshooting vibrating wire sensors and cables...
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V1.0 V1.0 INTRODUCTION Where damage to a sensor or cable is suspected this guide illustrates the way in which simple resistance checks can be taken to identify the possible cause of the problem. Resistance checks can be made with most types of multi-meter which are readily available in the market.
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V1.0 V1.0 RESISTANCE OF THE THERMISTOR STEP 1 Set the range to 20kΩ or Ω if using a multi-meter which has automatic ranging. STEP 2 Connect the T+ (green) conductor to the red lead on the multi-meter and the T- (white) to the black lead on the multi-meter.
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V1.0 V1.0 RESISTANCE OF ALL INDIVIDUAL CONDUCTORS STEP 1 Set the range to 20kΩ or Ω if using a multi-meter which has automatic ranging. STEP 2 All pairs of conductors should be checked by connecting to the red and black leads on the multi- meter as follows:- Red &...