Loma IQ3, User Manual

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Installation
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If the conveyor is fitted with feet, you are recommended to apply silicone sealant around the
feet and floor.
Clearance Requirements
From safety and operational viewpoints, it is important that sufficient free space is left around the
machine, specifically the front and back, to enable commissioning and for maintenance personnel to
easily gain access to components.
It is recommended that wherever possible a minimum of 1 metre free space is available at the front of
the machine and 1 metre at the rear.
Connecting the Air Supply
Do not start the machine and initiate the use of any compressed air before the Loma
commissioning engineer has approved the installation.
Except where a metal detector head only is being supplied, all Loma metal detector systems require a
clean and dry compressed air supply, primarily to operate the optional automatic reject system.
It is therefore essential that the air supply is robust enough for correct operation of the system when
the reject operates.
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Pneumatic Assembly – The pneumatic system consists of the following components:
o
Isolator Switch – The external air supply is connected to the switch which is used to turn
the supply to the system on and off. The air supply is then fed into the Air Regulator.
o
Air Regulator – The air regulator is used to set the air pressure being supplied to the
system. A drain trap is provided to remove any water that collects in the system. See the
Maintenance section for further details. The air supply is then fed into the Dump Valve.
o
Dump Valve – The dump valve is a safety device that dumps air pressure from the system
in an emergency to protect the operator. It also includes a soft start feature which allows
air pressure to build slowly following an air pressure dump to prevent damage or injury.
The air supply is fed from the valve to the input connection on the Reject Valve.
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Reject Valve – The Reject Valve is attached to the pneumatic assembly and contains five ports
as follows:
o
Air Supply Input Port – The air supply from the Dump valve is connected to the input.
o
Air Supply Output Port 1 – The air supply is fed to one side of a reject device. For
example when fitted to one side of a double acting air cylinder, the air drives a rod
attached to a nylon blade to push product off a conveyor into a reject bin.
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