RIDGID metal detector Guia do Utilizador Página 67
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About the Metal Detector Range
Reject Bins
Two sizes of reject bin are available for collecting contaminated products removed from the conveyor
belt using a pneumatic reject device. The size of the bin required is determined by the conveyor
length and the size and weight of the product to be rejected.
Reject bins are fitted with a lockable door as standard and optionally with an electronically operated
door lock mechanism that may be opened and locked by operators with a specific user level access
account through the user interface.
In addition the bin can optionally be fitted with a 'Bin Full' photo-eye which generates a warning when
the bin needs to be emptied. This option is enabled in the Menus > Service > Reject > Set Up menu
A 'test' paddle can also be fitted to manually check that the Bin Full photo-eye is working correctly.
Electrical Services Box
Electrical supplies to the conveyor are connected inside the electrical services box. The box is
generally mounted at the front of the conveyor frame but can be overhead mounted. Supplies are
connected via the Isolator Switch. The internal components may be mounted on a printed circuit
board or on din rails if a PLC version is supplied.
The door of the box is fitted with the Isolator Switch, Conveyor ‘Stop’ and ‘Start’ buttons and the
Emergency ‘Stop’ button as described in the table below.
The Isolator Switch is located on the front of the Electrical Services Box and is shown
here in the ON position. Power is being supplied to the machine.
The Isolator Switch is shown here in the OFF position. Power is NOT being supplied
to the machine.
The conveyor Start/Stop button is located on the front of the Electrical Services Box
and is used to start and stop the conveyor.
Pushing the green section at the top of the button starts the conveyor and the white
LED located in the middle of the button is lit to indicate this.
Pushing the red section at the bottom of the button stops the conveyor and the white
LED is extinguished.
The Emergency Stop button is located on the front of the Electrical Services Box and
is to be used in EMERGENCIES ONLY to stop the machine.
Guards
For Loma metal detectors the use of guarding, including covers, panels, curtains and other methods
is extremely important in order to restrict operators from accessing contaminated products and also
areas of the detector that are potentially hazardous.
Air Pressure Switch
An air pressure failure switch is fitted if the conveyor is supplied with either a pusher reject or a
retracting band reject.
57
- 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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