APG VBL Vibrating Switch user manual - Manual (Page 20)

VBL Series Rev. A2, 9/09
20
Automation Products Group, Inc.
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• Troubleshooting
Problem
Not detecting powders when covered.
Possible Causes
• Powder build density is too small. Bulk density under 0.2 cannot be
detected.
• Power supply not connected.
• Material too fluid.
• Effected by heavy hopper vibration.
Remedies
• Set high sensitivity
• Connect power supply.
• Install sensor in a better location.
Problem
• It keeps detecting powders while the hopper is empty.
Possible Causes
• Heavy deposit on vibration rod.
• Material has dead stock.
Remedies
• Clean vibration rod.
• Install sensor in better location or isolate dead stock.