burster Italia s.r.l. ·
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· Sede legale ed operativa ·
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· Via Cesare Battisti, 16/18 · 24035 Curno (BG) · Tel. +39 035 618120 · Fax +39 035 618250
e-mail: [email protected] · http://www.burster.it
C.F. e P.IVA 11048400151 · Capitale sociale Euro 49.920,00 ···· R.E.A. di Bergamo 276749
Apparecchi di misura di precisione. Sensori e Sistemi
per grandezze elettriche, termiche e meccaniche
7
Maintenance
7.1
Maintenance Schedule
Action
Frequency
Date
Date
Date
Control of cables and connectors
1x p.a.
Calibration
< 26 months
Control of fixation (flanges, shafts)
1x p.a.
Have bearings exchanged by burster
20000 hrs
operating time
7.2
Trouble Shooting
This chart is used for searching for the most frequent errors and their elimination
Problem
Possible Cause
Trouble Shooting
No signal
No sensor excitation
•
Outside of permissible range
•
Connect excitation
•
Cable defect
•
No mains supply
Signal output connected wrong
•
Connect output correctly
•
Evaluation electronics defect
Sensor does not react to torque
Shaft not clamped
•
Clamp correctly
No power supply
•
Outside of permissible range
•
Connect supply
•
Cable defect
•
No mains supply
Cable defect
•
Repair cable
Connector connected wrong
•
Connect correctly
Signal has dropouts
Axial position rotor to stator outside
of tolerance
•
Align rotor
Cable defect
•
Repair cable
Zero point outside of tolerance
Cable defect
•
Repair cable
Shaft mounted distorted
•
Mount correctly
Distorted shaft string
•
Release from distortion
Strong lateral forces
•
Reduce lateral forces
Distorted flanges
•
Check evenness of flange-
surfaces
Shaft overloaded
•
Send to manufacturer
Wrong torque indication
Calibration not correct
•
Re-calibrate
Sensor defect
•
Repair by manufacturer
Torque shunt
•
Eliminate shunt
Oscillations
Alignment of shaft not correct
•
Align correctly
Unbalance
•
Balance the corresponding
parts
8
Decommission
All sensors must be dismantled professionally. Do not strike sensor housings with tools. Do not apply bending moments on
the sensor, e.g. through levers. The torque sensor must be supported to avoid falling down during the dismantling.
