RIDGID metal detector User's Guide Page 81
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Using the Metal Detector
Regular In-Line Detector Performance Testing
It is important to maintain regular and accurate in-line performance testing of the metal detector using
the same techniques as the initial performance testing. This should include tests to ensure that the
reject systems are effective. See Using Performance Validation
for further details.
Regular testing should be conducted using the same techniques as initial performance testing. This
should include ensuring that the reject systems are effective, including reject confirmation systems if
fitted.
The records generated by this system should be maintained in a safe and easily retrievable place for
a time period suited to your particular quality regime. Factors which may be of help in determining a
suitable retention period might be:
■
The anticipated life of your product within normal consumer usage.
■ Any statutory time period within which enforcement authorities may instigate legal
proceedings after notification of a complaint.
Handling Rejected Products
A reject collection device, such as a reject bin, will typically be used to prevent contaminating
products from being mixed with uncontaminated products. Any rejected product should be kept
segregated for later examination. Never let your bin overfill.
It is advisable to examine rejected product with a view to identifying any contamination.
The information gained can be used to implement preventative measures, thus improving further the
product. Multiple contaminants may be a clue to machinery break-up. Identification can then pinpoint
the source and effective maintenance can then be conducted.
The IQ
3
Metal Detector can also be helpful when examining contaminated products. For example, you
can alter the orientation of the product and pass it back through the metal detector to help identify its
position. Alternatively, you can subdivide a large product into a number of smaller samples and then
use the metal detector to identify which sample contains the contaminant.
71
- Metal Detector User Guide 1
- Table of Contents 3
- Introduction 11
- About this Guide 12
- Organisation 13
- Document Change Control 14
- Document Key 14
- The Loma Group of Companies 16
- About Metal Detection 17
- How a Metal Detector Works 18
- Product Effect and Phasing 18
- Phasing 19
- Tracker Feature 20
- Metal Free Zone 20
- Detector Performance 20
- Types of Metal 22
- Test Frequency 23
- Product Test Samples 23
- Test Wands 24
- Testing Guidelines 24
- Test Records 24
- Learn Feature 25
- Safety First 27
- Safety Awareness 28
- EC Declaration of Conformity 28
- Safety Warnings 29
- Safety Labels 31
- Safety Guards 32
- Safety Measures 33
- Intended Use of the Machine 33
- Noise Levels 34
- End of Life Treatment 34
- Emergency Procedures 34
- Quality Assurance 35
- End User Licence Agreement 36
- Technical Specifications 37
- European Belt Conveyors 38
- Installation 39
- Warnings 40
- Receiving and Unpacking 40
- Moving the Detector Head 40
- Nuisance triggering 45
- Moving Metal 46
- Vibration 47
- Belting 47
- Electrical Interference 47
- Warnings 52
- Moving the Machine 53
- Clearance Requirements 54
- Connecting the Air Supply 54
- Checking Guards 57
- Site Considerations 58
- Radio Frequency Interference 59
- Metal Detector Search Heads 62
- Conveyor Belts 63
- Plastic Modular Belts 64
- Reject Devices 65
- Electrical Services Box 67
- Air Pressure Switch 67
- Optional Equipment 68
- Getting Started 71
- threshold 72
- display 72
- changes 72
- User Access 75
- Logging In and Out 76
- Starting and Stopping 77
- Stopping the Machine 78
- Emergency Stop 78
- Using the Metal Detector 79
- Handling Rejected Products 81
- Getting the Results 82
- Frequency Selection 82
- Operating Instructions 83
- Setting the Language 84
- Setting the Machine ID 84
- Setting Up the Search Head 86
- Setting Up the Conveyor 88
- Setting the VF Balance 92
- Setting the VF Drive 94
- Setting Up the User Options 95
- Setting Up Serial Links 96
- Reject Relay 101
- Reject Timing 101
- Adding a New Product 102
- Learning Products 104
- Full Learn 105
- Update Learn 106
- Learn Messages 107
- Learn Setup 108
- Learn Limits 110
- PQ span? 111
- Using Performance Validation 112
- Logs and Reports 117
- Errors Report 118
- Example Problems 119
- Faults Report 120
- Setup Report 123
- Contaminants Report 124
- Learn Report 125
- Status Report 126
- PV Test Report 126
- Batch Report 127
- Shift Report 128
- Contaminants Log 128
- Errors Log 129
- Faults Log 130
- Printing the Faults Report 131
- Clearing a Fault 131
- Clearing the Log 131
- Batch Log 132
- PVS Log 133
- Shift Log 134
- Maintenance 135
- Cleaning solutions 136
- Belt conveyor versions 136
- Conveyor Belt Maintenance 137
- Adjusting the Reject Devices 138
- Software Upgrades 138
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