Interface T8 - 7 Maintenance; Maintenance Schedule; Troubleshooting Guide

T8 Torque Sensor Operation Manual
Interface Inc. ● 7401 East Butherus Drive, Scottsdale, Arizona 85260 USA ● Phone 480.948.5555 ● Fax 480.948.1924
www.interfaceforce.com ● Email: contact@interfaceforce.com ● 800.947.5598
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7 Maintenance
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 Interface
20000 hrs
operating time
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.
9 Transportation and Storage
The transportation of the sensors must occur in suitable packing.
For smaller sensors, stable cartons which are well padded are sufficient (e.g., air cushion film, epoxy crisps, paper
shavings). The sensor should be tidily packed into film so that no packing material can reach into the sensor (ball
bearings). Larger sensors should be packed in cases.