Amprobe 5XP-A Skrócona instrukcja obsługi - Strona 2
Przeglądaj online lub pobierz pdf Skrócona instrukcja obsługi dla Multimetr Amprobe 5XP-A. Amprobe 5XP-A 6 stron. Resistance diagnostics for troubleshooting vibrating wire sensors and cables
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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.
RESISTANCE OF THE COILS
STEP 1
Set the range to 200Ω or Ω if using a multi-meter which has automatic ranging.
STEP 2
Connect the VW+ (red) conductor to the red lead on the multi-meter and the
VW- (black) to the black lead on the multi-meter.
The correct readings should be as follows ±10%
Pressure Transducer ~ 160Ω
Strain gauge
Co-axial coil
IF THE VALUES ARE OUT OF THESE RANGES THEN THERE IS A FAULT IN THE COILS
IF THE VALUES ARE 50% THEN THERE IS A PROBLEM WITH ONE OF THE COILS
~ 180Ω
~ 50Ω
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