Bentley3300 XL Ceramic Capped Probe Malfunction

H

Thread Starter

Hassan

Bentley3300 XL Ceramic Capped Probe malfunction causing trip of the machine. The gap voltage went to 0 from original value resulting in tripping. The electrical connections and circuit checked and found okay. The second probe on the circuit also malfunction in similar way a few months ago. All other probes behaving okay.

The probe was taken out of service (system bypassed) and machine started. Gradually the value restored to original value and now working okay.

The machine was under maintenance in October (Oil changed, machine rotor changed). 1st probe malfunctioned in November (2nd probe was okay and no fault observed, gradually the value restored) and 2nd tripping occurred in Feb and again values restored.

What could be the reason of trippings regarding probes or what checks should be do before preventing shutting down the machine?
 
Top