Eriez FF4 Manual

Installation, Operation
and Maintenance
Instructions
ERIEZ MAGNETICS HEADQUARTERS: 2200 ASBURY ROAD, ERIE, PA 16506–1402 U.S.A.
WORLD AUTHORITY IN ADVANCED TECHNOLOGY FOR MAGNETIC, VIBRATORY and INSPECTION APPLICATIONS
MM-407
MODel FF4
Metal separatOr

2
Introduction
The texts and illustrations in this instruction manual are for the exclusive
purpose of explaining how to operate and handle the metal separator.
Based on the data in this instruction manual the manufacturer accepts
no responsibility for direct or consequential damage resulting from the
use or misuse of this equipment. All appropriate safety rules and
regulations for the use of this equipment must be adhered to. If you
should have any questions with regard to the installation and operation
of this equipment please do not hesitate to contact us.
CAUTION
Safety labels must be affixed to this product.
Should the safety label(s) be damaged, dislodged
or removed, contact Eriez for replacement.
©2013 ERIEZ MAGNETICS ALL RIGHTS RESERVED

3
Model FF4 Metal Separator
Table of Contents
ERIEZ MODEL FF4 METAL SEPARATOR
GENERAL INFORMATION.................................................................................... 4
DESIGN AND METHOD OF OPERATION............................................................ 5
SAFETY................................................................................................................. 8
INSTALLATION ADVICE ..................................................................................... 10
INSTALLATION ................................................................................................... 12
ERRORS AND FAULT RECTIFICATION............................................................. 12
MAINTENANCE .................................................................................................. 13
SPARE PARTS .................................................................................................... 14
SHIPPING, PRESERVATION,
WASTE DISPOSAL,
TRANSPORT, STORAGE ................................................................................... 14
ANNEX ................................................................................................................ 16
Technical Data Sheet FF4S........................................................................... 16
Technical Data Sheet FF4G .......................................................................... 20

4
IMPORTANT FUNCTIONAL NOTES
The stated detection sensitivity (ferrous ball Ø in
in/mm) applies for nonconductive products at the
standard operation frequency and refers to the center
of the detection aperture (most disadvantageous
position). Products that show intrinsic conductivity
due to moisture content, electrolytes or other
conductive contents may reduce the sensitivity
as well as variations of product temperature,
environmental effects (mechanical shocks and
vibrations, electromagnetic pollution) or the set
product angle. The detectable size of metal particles
depends on their nature, shape and position while
passing the metal detector. The metal separator is
designed and built to provide optimum detection and
separation of metal contaminants.
However, it is important to be aware of the
circumstances in which metal detection may be
compromised when conveying and processing
bulk materials.
•Accumulationofmetalresidues.
•Accumulationofmetalparticlesinabatchofbulk
material. This may occur with ground or shredded
material if a larger metal piece has been ground.
•Turbulenceintherejectunitandrejectap
reaction time.
•Ifthereisanaccumulationofmetalparticlesthe
apcannotreacttothecontrolsignalswithout
delay, this occurs when recycled or reground
material is processed, even when blended with
virgin material.
•Conveyingrateorfallvelocitytoohighortoolow.
•Type,size,andpositionofthemetalcontamination.
For bulk materials containing a high proportion of
metal contaminants it is recommended that two
separators are connected one after the other and
additional permanent magnets are installed in freefall
pipes or hoppers. Contact your local Eriez
representative for further information on these
products. Suitable metal separators and magnet
systems are also available for pre-separation in
vacuum and pressure pipes.
FIELDS OF APPLICATIONS
The FF4 Metal Separator is used for the inspection
of gravity-fed bulk materials in the plastics and food
industry. It detects all magnetic and non-magnetic
metal contaminants (steel, stainless steel,
aluminium) even if they are encapsulated in the
product. Metal contaminations are separated by the
rejectunit.TheFF4MetalSeparatorprimarilyisused
in industries with no or low hygienic demands;
non-washdown applications.
APPLICATION REASONS
•Productliability
•ISO9000
•TQM(TotalQualityManagement)
•Protectionofmachinesandqualityassurance
SYSTEM IDENTIFICATION
The information in this instruction manual only applies
to the FF4 Metal Separator. A label with the respective
data is attached at every system.
SYMBOLS USED
General Information
Symbol Signal Word Meaning
Danger Warning: Possibility of severe or even fatal
personalinjuries.
Danger The lightning symbol is an explicit warning
that there is danger from electric current.
Warning Warning: Possibility of minor personal
injuriesorpropertydamage.
Caution Warning: Possibility of defects or destruction
of the equipment.
Important
Information
Indicates important information for
the function.
Important
Hint
Indicates an important hint for
the function.
IMPORTANT INFORMATION
For these reasons no general guarantee can be
given that the unit will operate with 100% accuracy.

5
Model FF4 Metal Separator
Design & Method of Operation
CONTROL ELEMENTS/COMPLETE UNIT
BASIC ELEMENTS
1
4
5
3
2
6a 6b
1 Inlet
2 Rejectoutlet
3 Good material outlet
4 Detection unit
5 Diverter unit (rotating)
6 Control unit G (6a) or S (6b)
ACCESSORIES (NOT SHOWN)
7 Signaling device (audible alarm, visual alarm
or combination alarm)
8 Intermediate pipe for larger fall heights
9Filtercontrolvalve
10 Counter (detection counter) in a separate housing
11Buttonformanualrejectioninaseparatehousing
12 Button for functional test in a separate housing
13 Test samples
14 Compressed-air monitor in electronics housing
15 Monitor system for separation unit
16Cablesetforremotecontrolunit9.84',19.69',
32.81',and49.21'.(3m,6m,10mand15m)
17 Bulk material temperatures of up to 284°F (140°C)
18 Direct contact with food
19Enhancedwearprotection

6
FUNCTIONAL PRINCIPLE DESIGN
Metal separator comprising two modules, a detection
module with the attached control unit S or G and a
separation module connected by a pull ring. Inlet and
outlets made according to Jacob pipe system.
Note: The diverter is shown in reject position.
CONTROL ELEMENTS/CONTROL UNITS
The FF4 Metal Separator can be equipped with two
different control units.
CONTROL UNIT - S
Used mainly in food and plastics industry. Equipped
with 28 product memory.
CONTROL UNIT - G
Used mainly for food and pharmaceutical industry
applications. Equipped with 200 product memory.
3
4
5
62
1
Operation
Fault
Metal
3
4
5
6
2
1
Operation
Fault
Metal
1 Inlet
2 Detection coil
3Diverterap
4 Metal impurity
5Rejectoutlet
6 Material outlet
Design & Method
of Operation (cont.)
2
6
5
4
1
3
1 LCD-display: two-line, 32-digit display
2 Operator keys: ESC, UP, DOWN and ENTER
3 Green lamp: Operation
4 Red lamp: Fault
5 Yellow lamp: Metal
6 Function key: Reset/Test
1 LCD display
2 Function keys F1 - F4
3 LED: Operation (green)
4 LED: Fault (red)
5 LED: Metal (yellow)
6 Resetting of the metal and alarm signal

7
Model FF4 Metal Separator
DIMENSIONS & TECHNICAL DATA
Technical data sheet, see annex.
SUPPLY CONNECTIONS
Technical data sheet, see annex.
ENVIRONMENTAL CONDITIONS FOR OPERATION,
STORAGE, AND TRANSPORT
The environment of the metal separator should be dry,
dust-free,freeofvibrations,ofotherinuencing
magnetic fields, of chemical vapors such as softeners,
chlorine and similar substances. The metal separation
unit must not be exposed to direct sunlight or to other
environmentalinuences(rain,snow,storm).For
ambient temperature conditions for operation, storage,
and transport, please refer to the technical data sheet
in the annex.
NOISE LEVELS
Sound pressure level measurements
(in acc. with DIN 45 635).
Peak value of sound pressure level at a distance of
3.28'(1m)fromthemachinesurfaceand5.25'(1.60m)
abovetheoor,LpA,3.28'(1m),max.
Result:
Idling: < 70 dB
Activated:<90dB
We reserve the right to change the contents due to
product innovation or technical improvement.
TECHNICAL DESCRIPTION
The FF4 Metal Separator is used to inspect bulk goods
under free-fall conditions. It detects all magnetic and
non-magnetic metal contaminations (steel, stainless
steel, aluminium) – even when encapsulated in the
product.Metalcontaminationsarerejectedthrough
the“QuickFlap”rejectunit(SeeImportant
Functional Notes).
Detection is performed by a search coil that comprises
a transmitter and two receiver coils and operates
according to the transmitter-receiver principle. The
excitation frequency for the transmitter coil is between
16 kHz and 300 kHz. Identical voltages are induced in
the two receiver coils on the left and right side of the
transmitter coil. When a metal particle passes through
the search coil, it unbalances first the inductive field of
receiver 1 and then of receiver 2. These small voltage
changes are evaluated by the control unit, which
generates a metal signal and triggers a
separation process.
1
2
3
1 Scanning pipe
2 Detection coil housing
3 Metal contaminant
E1 Receiver coil 1
E2 Receiver coil 2
S Transmitter coil
Due to their intrinsic conductivity that is caused i.e.
by moisture, metal oxides, grease, salts, etc. many
bulkmaterialshaveaso-called“producteffect.”For
being able to detect metal contaminations the control
unit must suppress or reduce this product effect.
This“suppression”ofproducteffectsmayleadto
a reduction of the stated scanning sensitivity.

8
Safety
Symbol Signal
Word Location Meaning
Mains
voltage
Cover of the
electronics
housing
This symbol indicates that mains
voltage is used in the electronics
housing, and that any connected
external circuits (i.e. at the
metal relay) also may be
energized. There is danger of
electric shocks due to the
presence of mains voltage.
Danger of
crushing
Normal
outlet,
rejectoutlet
This symbol refers to risks
for the hands on account of
the pneumatically operated
diverterap.
In the
pneumatics
housing
This symbol indicates that there
is danger of crushing your
fingers due to the movement of
the pneumatic cylinder.
Option: High temperature version
Burn
hazard Pipes
This symbol indicates that at
the pipes there is danger of
burning due to the high
product temperature.
INTENDED USE
The equipment is designed for the use in gravity
feed conveying systems for the food, chemical
and pharmaceutical industry, as well as other
industries with similar applications. Feeding and
outlets for the material to be inspected have to
be installed carefully. The free fall height of the
material should not exceed 17.71" (450mm) for the
FF4G versions. The free fall height of the material
should not exceed 19.69" (500mm) for the FF4S
versions. Inlets and outlets should be connected
to funnels, hoppers, pipes etc. to avoid injuries of
hands during operation.
No chemically aggressive bulk material should
be fed through the equipment. Ensure that the
installation area is free from steam, plasticizers
or other materials that may damage the PVC
cable sheathing.
If there is a high proportion of metal contaminants
or the bulk materials being inspected are abrasive,
it is likely that any surfaces in contact with the
product (i.e. scanning pipe) will show signs of
wear and tear (i.e. reject flap, pneumatic cylinder
etc). In this case it is important that surfaces
in contact with the product (i.e. scanning pipe,
adaptors, reject device, drive unit, etc.) are checked
at regular weekly or monthly intervals. Worn
parts must be replaced immediately to ensure
the machine functions properly.
WARNING
The following safety and danger notes are
intended for your protection, for the protection
of third parties, and for the protection of the
equipment. The safety notes therefore should
always be observed! Please also observe the
chapter on safety in the operating instructions
of the control unit!
DANGERS ARISING FROM
NON-COMPLIANCE WITH SAFETY NOTES
Any non-observance of safety notes constitutes
a danger for life and health.
The manufacturer equipment conforms with all official technical safety regulations.
However, as a manufacturer we believe it is our duty to make you aware of the
following information.
Please note that any preventative measures which
may have been taken at the time of construction
will merely delay the onset of wear and tear but
will not eliminate it completely. The metal
separator may only be operated with a
corresponding Control Unit.
SAFETY SIGNS
Warning signs attached at the system:
The purpose of these symbols is to draw the attention
of the system operator to the text of the respective
safety notes.

9
Model FF4 Metal Separator
BURN HAZARD
In case of product temperatures of more than
140°F (+60°C) there is danger of burning at
parts in contact with the product. During
operation, suitable protective facilities must be
attached that prevent any touching of the danger
spots.The product flow must be interrupted before
any maintenance or cleaning work is started. Any
such work may only be performed after the parts
in contact with the product have cooled down.
WARNING
If the reject unit should be removed from the
conveyor pipe for maintenance or cleaning
purposes, always observe the following information
relating to the own weight of the reject unit. Always
first support the reject unit with suitable lifting
means, and only then loosen the fastening screws
at the clamping ring.
SAFETY INFORMATION FOR INSTALLATION
AND DISMANTLING
In case of incorrect installation, the own weight
of the machine may lead to personal injuries.
Always use suitable lifting means to transport the
machine to the intended place, and screw it to
a wall, ceiling, or frame using the four fastening
screws. Only remove the lifting means after
all four fastening screws have been tightened.
Dismantling is done in reverse order.
SAFETY INFORMATION FOR STORAGE
AND TRANSPORT
Always observe the information in Shipping,
Preservation,Waste Disposal, Transport and
Storage to avoid any transport damage and
personal injuries.
SAFETY INFORMATION FOR
COMMISSIONING, OPERATION,
MAINTENANCE AND CLEANING
The mechanism of the separation unit is covered
by a screwable protective cover. Due to the
cylinder movements there is danger of hand
injuries in the separation unit. If the protective
cover of the separation unit is removed, the
compressed air supply must first be interrupted
and the air tubes must be vented. Compressed
air supply may only be connected again after
the protective cover has been successfully
closed again. The protective cover of the
separation unit must always be kept closed
during operation.
When the reject flap is operating, there is danger
of crushing between reject flap and the housing
panel. During operation all the protective devices
that prevent any reaching into the inlet, normal
SAFETY INFORMATION
FOR OPERATORS
The FF4 Metal Separator may only be operated
in the intended purpose and in a perfect
functioning condition, especially all the covers
have to be closed during operation. When the
reject flap is operating there is danger of
crushing your fingers. With passage openings
larger than 2.76" (70 mm), it is possible to reach
into the danger spot. Therefore, a pipe of 1.64"
(0.5 m) must be flanged at the inlet, and pipes
of 2.95" (0.9 m) at the outlets, or other measures
must be taken to prevent any reaching into the
reject mechanism. If the product temperature is
higher than 140°F (+60°C) there is danger of
burning at parts in contact with the product.
It is recommended to use a kind of enclosure
or another measure to prevent touching of the
danger spots. All the safety and warning signs
at the system must not be removed and must
be kept in well recognizable condition. The
operating instructions always have to be in a
legible condition and complete available. The
owner may only appoint qualified personnel for
operation, maintenance and repair work. During
works on the pneumatic or the electric section
power supply and compressed air supply have
to be interrupted or disconnected.
outlet, or reject outlet must always be attached.
The reject unit must be firmly connected to the
conveyor pipe. If the separation unit or protective
devices are removed from the conveyor pipe for
maintenance or cleaning purposes, the
compressed air supply must first be interrupted
and the compressed air tubes must be vented.
Compressed air supply may only be connected
again when the protective devices have been
attached again and the separation unit has been
successfully mounted to the conveyor pipe again.

10
Safety (cont.) Installation Advice
MOUNTING
•Useonlytheprovidedboreholestofastenthe
device. See operating instructions.
•Theplaceofinstallationhastobeasstable
as possible.
•Pleasebesuretoabidebythestatedfallheights
of these units; see technical data sheets.
•Incaseofstrongvibrations,connectthedevicevia
exiblecollars.
•Thecontaminatedbulkmaterial(reject)must
owwithoutdisturbanceintoaclose,de-aerated
container (no backlog).
•Thettingpositionisvertical.Angularinstallation
can lead to erosion in parts of the detection pipe.
•Detectionandseparationunitareseparatedfor
the FF4 Metal Separator. Advantage: Should the
free-fall height exceed the defined limits, the Jacob
pipeworkabovetherejectionunit(point5)height
adjustment.Foradjustmentofthepipework,
please contact Eriez.
•Theseparationunitisturnableandcanbeadjusted
tothepositionoftherejectcontainer.
•Outdoorprotection:Themetaldetectormustbe
protected from rain, snow, sun, and other weather
effects if installed outdoors.
PRODUCT TO BE INSPECTED
•Thebulkmaterialhastopassthemetalseparator
in free-fall. Please prevent backlogs.
•Nopressuretobeusedformaterialfeed.
•Productswithproducteffects(conductivityof
bulk material e.g. caused by dampness) can
affect the sensitivity, depending on the intensity.
Pre-analysis of material samples in our laboratory
is recommended.
•Dependingonintensity,theproducteffectand
required sensitivity, the S and G control units can
be used.
•Maximumbulkmaterialtemperatureof176°F
(80°C). For higher material temperatures, suitable
machinery options are available.
NOTES OF RESIDUAL RISKS
Possibly installed compressed air tanks can still
contain pressure in spite of interruption of
compressed air supply. Where appropriate, vent!
NOTES ON STABLE
STANDING REQUIREMENTS
To avoid any loss of stable standing, the
information for transport, commissioning and
operation must always be observed. If the metal
separator is not mounted at a wall, it is to be
stored in lying condition.
CONSEQUENCES OF
UNAUTHORIZED MODIFICATION
In case of unauthorized modification or repair
work, all the declarations and guarantees given by
the manufacturer will become void.
INADMISSIBLE OPERATION
The FF4 Metal Separator is not intended for any
other applications than mentioned under Intended
Use – any other applications will be regarded as
inadmissible operation.
Inadmissible is the operation out of the
specifications given in the technical data and the
operation under high mechanical static or dynamic
loads (i.e. heavy system parts or strong vibrations).
Also inadmissible is the examination of aggressive
materials such as materials containing alkaline
solutions, acids and solvents, of materials that are
sensitive to electromagnetic fields, and of living
people and animals.
The standard version of the metal separator must
not be operated in explosive “hazardous
environments”. Operation in explosive “hazardous
environments” only is permissible with the special
Atex version of the metal separator, which is dealt
with separately. Contact the factory for details.
It is possible to also use the system in other
applications than the intended use stated herein,
but such applications always require the prior
consultation and approval of Eriez
Manufacturing Company.

11
Model FF4 Metal Separator
AMBIENCE
•TheequipmentmeetstheCE-guidelines,which
includes particularly the EMC standards. This
standard, EN 61000-6-2, sets the intensity of
magnetic stray fields to 30 A/m. Do not mount the
equipment close to electromagnetic noise sources
like electric motors, power supplies for electric
motors, and power frequency converter drives.
•Avoidbigmovingmetallicpartsclosetothe
detector head like chain drives, rollers or even
a fork lift.
•Whenusingtwoormoredetectorsinoneroomor
hall,detectionperformancemightbeinuenced.
•Ambienttemperature14°Fto122°F(-10°Cto50°C).
ELECTRIC INSTALLATION
•Static:Topreventdetectionfaults,pleasebesure
to ground the device on the designated spots
(see manual).
•Thecontrolunitisnottobeintegratedintoother
switchboards as this might cause technical failure.
•Whenrunningconnectioncables,pleasebesure
to separate them from other cables and use tubes
or cable trenches.
•Connectioncables(specialcables)between
detection coil and evaluation electronic must only
be changed in agreement with Eriez.
•Forallcablesleadingoutside,onlyusescreened
cables. Screens are to be connected directly to
the cable connection of the housing.
•Mainscableandcableconnectionsmustnotbe
removed – component of the EMV concept. Should
themainsplugnotberequired,ajointboxisto
be used.
•Donotrunactuationfeedersandcontrolcables
near the device.
•Operationalvoltage,protectiontypeandfurther
technical data (see data sheet).
•Fordifferentmainsvoltage,asuitabletransformer
(external housing) is to be used.
PNEUMATIC CONNECTION
•Airpressure87-116PSI(6-8bar).
•Filteredcompressedair,freefromwaterandoil.
•Airpressureconnection,pneumatichose
.24"/.31"(6/8mm).
•Airpressureusage,dependingontypeofdevice,
between .11 and .71 gals (0.4 and 2.7 liters) per
switching operation.
IMPORTANT INFORMATION ON MACHINERY USE
The metal separator offers highest security for detection
andrejectionofmetalcontamination.Thedevicewas
designed for the control of bulk material and not for
sorting purposes.
In case of a high amount of metal contamination within
the bulk material, the number of metal detections
increases,whichmightcausetherejectap,actuation,
etc.toabrade.Thelossof“goodmaterial”
increases accordingly.
Even in case of successful metal detection, metal
contaminationmightnotberejecteddueto
the following:
•Occurringmetalherds:Aggregationofnumerous
metal particles in a charge of bulk material. Often
found during grinding and milling of bulk material
when a larger metal piece was crushed.
The following numerous detections and switching
cause swirls in the separation unit.
•Reactiontimeofpneumaticcylinders(tooperate
detectionap)incaseofnumerous,quickly
following detections.
•Backloginmetalseparator(separationaphits
product column).
•Conveyerpipehighlylled.
•Conveyingorfallspeedtoofast.
Due to these circumstances, a guarantee for 100%
metal separation in all cases cannot be given.
For bulk material with high metal contamination, two
solutions have proven to be most effective:
•Pre-separationofmetalwiththeuseofamagnetic
Grate-In-Housing.
•Theuseoftwoormorefree-fallmetalseparators
to a cascade.
Please also refer to our storage, installation, and
activation directives in the manuals.

12
Installation
It is important to pay attention to the following items:
•The free fall height of the fed product should not
exceed the value stated in the technical datasheet.
•Solidandvibration-freemounting.
•Avoidelectromagneticinterferencesinthe
surrounding of the detector, i.e. caused by electric
motors, frequency converters, power lines etc.
•Carefullyinstallthecablesofthepneumaticvalve
and detector head. Do not bend the cable and do
not damage the PVC insulation.
•Indoormountingandoperation(coverandonsite
weather protection is necessary).
•Provideworkingplatformformaintenance
and repairs.
•Preventelectrostaticchargingbyearthing
the frame.
•Aperturesofmorethan3.15"(80mm)mustbe
connected to an inlet pipe of 1.64" (0.5 m) and
outletpipesof2.95"(0.9m)(orotherpreventative
measures must be taken) to prevent anyone
reaching inside.
NOTE: It is recommended to place a lockable opening
in the pipe in front of the detector (inlet). This opening
allows to put in test samples for performance checks
of the equipment.
•Groundtheframeofthemetalseparatoratthe
grounding terminal.
•Checkthecableconnectiontothepneumatic
valve and detector head.
•Connecttheairsupply.
•Checktheairpressure.Adjustitto87PSI(6bars)
if necessary.
NOTE: Reliable metal separation is only guaranteed
if the air pressure always is above 72.5 PSI (5 bars).
For electrical power connection see attached manual
for the control unit.
After correct installation and connection of power
supply voltage (115 VAC or 230 VAC; 50/60Hz) and
compressed air 87 PSI (6 bars) supply, check the
rejectmechanismmanuallybyactivatingthe
pneumatic valve (S Control, test button; G Control,
use menu command).
Activatetheconveyingandadjustthemetaldetector
such (see operating instructions of the respective
control unit) that no malfunctions occur. If appropriate,
eliminate reasons for malfunction.
Convey a suitable test sample, i.e. a plastic ball with
included metal part of the desired size, which should be
rejected.Ifnecessary,adjusttherejectdurationtime.
Errors & Fault Rectification
CONNECTIONS
Electrical work should only be carried out by
qualified personnel. Before removing cover plates
etc. make sure the equipment is isolated from
mains or external voltage.
SETTING OF OPERATING PARAMETERS
Close the cover of the control unit and the cover
of the reject mechanism.
WARNING
If products should get jammed, disconnect the
system from the mains supply and turn off the
compressed air supply and vent the air tubes.
The jammed products can then be removed
without danger.
WARNING
If you should have any questions, or if there
should be any malfunctions, please contact
Eriez Manufacturing.
WARNING
If you have any questions, please state the
equipment type and serial number!
MECHANICAL INSTALLATION
Only connect the compressed air supply when
all the covers have been closed, all the required
protective measures have been taken, and the
machine has been properly installed in the
conveyor line.

13
Model FF4 Metal Separator
GENERAL NOTES
In appropriate periods of time (i.e. every week or month):
•Performavisualinspectionofallthepartsin
contact with the product, such as scanning pipe,
transitions,rejectmechanismanddriveelements.
•Replacewornpartstoensureproperfunction.
•Checkallthescrewsandnutsfortightness,
and tighten them if necessary.
CLEANING ADVICE
Please ensure you follow the instructions below.
•Specicmachinecomponentsmustbecleanedwith
specific substances. Please use the correct materials
and clean at regular intervals as suggested.
•Priortoanycleaningwork,disconnectallthesupply
lines and the compressed air supply.
•Ifthebuildingisbeingcleaned,ensurethemachines
are covered up.
The following must not be used for cleaning:
•Sharp,hardorpointedobjects.
•Waterorsteamjetappliances.
•Compressedair.
•Hazardousandsolvent-containingmaterials.
•Cleaningagentsthatmayattackthe
materials used.
CLEANING INSTRUCTIONS
•Cleaningthemetalseparator:
 Werecommendcleaningthe“food”areawithasoft,
lint-free cloth using warm water and the appropriate
cleaning agent. After cleaning, wipe up any
remaining water with a dry, lint-free cloth.
Maintenance
WARNING
Prior to any maintenance and cleaning work,
disconnect the device from the mains supply and
turn off the compressed air supply and vent the
air hoses. Always observe the safety information.
IMPORTANT INFORMATION
If there is a high proportion of metal contaminants
or the bulk materials being inspected are abrasive,
it is likely that any surfaces in contact with the
product will show signs of wear and tear (i.e.
reject flap, pneumatic cylinder etc).
From time to time treat the stainless steel body
with a maintenance oil such as i.e. Nirostol 55
(food-compliant polishing and maintenance oil).
•Cleaningtheseparationunit:
First remove the cover of the diverter unit. The
pneumatic components are now accessible and
can be checked cleaned or replaced. If the diverter
aphastobereplaced,removerstthereject
outlet pipe adapter. Remove then the spring
locked bolt between lever and pneumatic cylinder.
Unscrew the center bolts in the shaft pieces left
and right side and remove the shaft pieces. The
diverterapcanberemovedthroughthereject
outlet. The reassembling is done in the
reverse order.
Condensate in the maintenance unit of the
compressed air line must be drained in
regular intervals.
CARE ADVICE FOR STAINLESS STEEL
Only high-quality stainless steel is used in the systems.
To prevent rust on the high grade steel parts, do not
use substances containing chloride (i.e. cleaning or
disinfecting products) or operate the machine in an
atmosphere containing chloride. If this is unavoidable,
the steel parts must be thoroughly rubbed down
immediately afterwards with cleaning oil i.e. Nirostol
55 cleaning and maintenance oil.
IMPORTANT INFORMATION FOR STAINLESS
STEEL MODELS
Stainless steel models are extremely weatherproof
and are, therefore, able to withstand most environmental
conditions. However, even stainless steel can be
susceptible to a slight film of rust. These deposits are
caused by contact corrosion and can be removed by
following the instructions below:
•Useastainlesssteelcleaner.Inprinciple,any
stainless steel cleaner may be used. Please
ensure you read the instructions prior to use.
•Useonlycleaningagentsthatarehalogen-free
(i.e.withoutchloridesanduorides),andsaltand
hydrouoricacidfree.
•Aftereachcleaning,rinsethemachinethoroughly
with tap water.
•Donotusethefollowing:non-alloymaterialsor
substances, abrasive cloths, cleaning agents
containingsaltorhydrouoricacid,chrome,
silver or brass cleaners.

14
PERFORMANCE CHECK
The performance check of the control unit is carried
out by pressing the test button (optional on control
unit G) or by selecting the respective menu item in
the control unit G. It is recommended to use a test
ball containing a test piece that is inserted into the
conveying pipe. This procedure ensures that both the
detection and the separation unit are checked. If the
unit works properly the test ball must be separated.
The interval for the performance check depends on
the contamination level of the inspected bulk material
and on the specifications of quality assurance.
If necessary, a performance check should be performed
every day, the minimum interval is every two weeks.
Spare Parts
If you should have any questions, please give equipment
type and serial number!
Contact Eriez for assistance.
Maintenance (cont.) Shipping, Preservation, Waste
Disposal, Transport, Storage
IMPORTANT INFORMATION
Spare parts and wearing parts must always be
obtained from the manufacturer or a supplier that
is certified by the manufacturer.
WARNING
Choose packing that is suitable for the type
and size of unit, taking into account whether
the shipment is for export by sea or airfreight,
or for national or international road transport.
The packing material must protect the goods from
all damage under normal transport conditions.
WARNING
Depending on the size, weight and nature of the
goods, packing in cardboard boxes, boxed pallets
etc. is only suitable for road transport. Use
reinforced cardboard, corrugated cardboard,
blister packing and shredded paper to fill and
protect the goods.
Electrostatic sensitive components (electronic
boards, electronic modules, etc.) must be packed
in antistatic foil or foil bags prior to packing!
(This is essential!) Stick additional warning labels
on the outside of the packaging (i.e. “Attention,
electronic equipment, do not drop,” etc.) The
packing should be sealed with adhesive tape
and, where the weight exceeds 110 lbs (50 kg)
additionally with wrapping tape.
WARNING
When packing for international road transport,
use the instructions above. Larger and heavier
shipments must also be protected as for export
in wooden crates. Care must be taken to ensure
that the goods inside the package are protected
against corrosion. Any parts that will corrode
easily must be wrapped in oil paper or
corrosion-protective foil. Care must be taken
to prevent the components from moving
around within the packaging.
WARNING
International air freight shipments must be
packed in wooden crates or on export pallets.
Care must be taken that the goods are secure and
well protected inside the packing. Any parts liable
to corrode must be wrapped in oil paper, protective
foil or sprayed with anti-corrosion spray.
SHIPPING, PRESERVATION, WASTE DISPOSAL

15
Model FF4 Metal Separator
WARNING
• If possible, the unit should be stored in a
closed room until final installation.
• If the unit is stored in the open, it must be
covered with tarpaulins and open underneath
to allow condensation to drain off.
• Avoid any high temperature uctuations. It is
possible that condensed water that has formed
in the packing cannot properly drain and may
corrode equipment surfaces. If a formation of
condensed water cannot be avoided, suitable
desiccants (i.e. in the form of bags) must be
placed in the packing.
• If the unit has been packed for transportation
by sea, the packaging must not be damaged
or opened during transit and storage.
• For storage temperature and permissible air
humidity, please refer to the technical
data sheet.
• For correct storage, comply with all storage
and handling symbols:
WARNING
• In order to avoid injury or damage to the unit,
it must be handled properly. In addition to
following the instructions below, general health
and safety, good practice, and specific accident
prevention guidelines should be observed.
• For correct handling and storage, comply with
the following symbols:
• Do not lift the metal separator at the
reject mechanism.
Symbol Signal Word
Protect against moisture
Careful: glass
Up
Center of gravity
WARNING
Sea freight must be packed in seaworthy export
crates. These crates can be obtained from
specialist suppliers.The crates must be lined with
oil paper to make them resistant to sea water and
prevent corrosion. In addition, the goods must be
protected against corrosion by use of a spray or
be wrapped in protective foil. Care must be taken
to ensure that the goods cannot move around
inside the crate. After packing, the sea freight
crates must be properly closed. The sea crates
must also be fastened externally with securing
tapes. During loading, care must be taken not to
damage the external packaging. The carrier must
certify that the shipment has been accepted and
loaded correctly by detailing this on the bill of
lading, loading list, etc.
WARNING
Waste disposal: Observe the national waste
disposal regulations.
TRANSPORT
• For lifting, attach strong lifting straps at the
frame of the metal separator.
• Do not compress the side walls of the unit or
any attached parts by pulling obliquely on
ropes or chains.
• Only remove handling safeguards once all
installation work has been completed.
• When handling in a loading area, make sure
the unit cannot topple over or slip.
• Damage caused during transportation must
always be reported to the manufacturer.
Symbol Signal Word
Protect against moisture
Careful: glass
Up
STORAGE

16
Annex
TECHNICAL DATA SHEET FF4S
DIMENSIONS–FF4S-80-120
TECHNICAL DATA
Type
Maximum
Sensitivity
1
Ø Ferrous Ball
Maximum
Throughput2
Inlet Flange
Plate,
Effective ID of
Inlet Pipe
ØA
Inlet,
Nominal
Width
ØB
Material Outlet,
Nominal
Width
ØC
Reject Outlet,
Nominal
Width
ØD
Weight
Lbs/Kg
Model FF4S-80 0.59 mm 282 cu ft/hr / 8000 l/hr 3.07 in/78 mm 3.07 in/78 mm 3.07 in/78 mm 3.07 in/78 mm 61.73 lbs/28 kg
Model FF4S-100 0.74 mm 424 cu ft/hr / 12000 l/hr 3.90 in/99 mm 3.90 in/99 mm 3.90 in/99 mm 3.90 in/99 mm 68.34 lbs/31 kg
Model FF4S-120 0.79 mm 565 cu ft/hr / 16000 l/hr 4.69 in/119 mm 4.69 in/119 mm 4.69 in/119 mm 3.90 in/99 mm 68.34 lbs/31 kg
Dimensions in inches
Type E F G H I J K L
Model FF4S-80 1.38 20.67 7.09 1.77 13.23 8.03 18.19 12.54
Model FF4S-100 1.10 21.77 7.09 1.77 13.23 8.03 18.19 12.54
Model FF4S-120 1.10 21.77 7.09 1.77 13.23 8.03 18.19 12.54
1 Control unit S
2 Compressed-air connection
3 Separation unit
4 Inlet (Jacob pipe system)
5 Material outlet (Jacob pipe system)
6 Reject outlet (Jacob pipe system)
Subject to change without notice!
1
The stated sensitivity (ferrous ball Ø in mm) applies for nonconductive products and refers to the center of the detection aperture (most disadvantageous position).
Products that show intrinsic conductivity due to moisture content, carbon or metal oxide concentration may reduce the sensitivity as well as variations of product temperature,
environmental effects (mechanical shocks, vibration, electromagnetic pollution) or the set product angle. The detectable size of metal particles depends on their type, shape
and position while passing through the metal detector.
2
The throughput rate depends on the flow characteristics and density of the bulk material, on the installation location of the metal separator, and on the possible presence of
any upstream magnet systems.
Dimensions in millimeters
Type E F G H I J K L
Model FF4S-80 35 525 180 45 336 204 462 318.5
Model FF4S-100 28 553 180 45 336 204 462 318.5
Model FF4S-120 28 553 180 45 336 204 462 318.5

17
Model FF4 Metal Separator
DIMENSIONS–FF4S-150
TECHNICAL DATA
Type
Maximum
Sensitivity
1
Ø Ferrous Ball
Maximum
Throughput2
Inlet Flange
Plate,
Effective ID of
Inlet Pipe
ØA
Inlet,
Nominal
Width
ØB
Material Outlet,
Nominal
Width
ØC
Reject Outlet,
Nominal
Width
ØD
Weight
Lbs/Kg
Model FF4S-150 1.00 mm 883 cu ft/hr / 25000 l/hr 5.87 in/149 mm 5.87 in/149 mm 5.87 in/149 mm 5.87 in/149 mm 88.18 lbs/40 kg
Dimensions in inches
Type E F G H I J K L
Model FF4S-150 1.42 25.55 8.46 1.77 15.75 7.48 18.19 14.70
1 Control unit S
2 Compressed-air connection
3 Separation unit
4 Inlet (Jacob pipe system)
5 Material outlet (Jacob pipe system)
6 Reject outlet (Jacob pipe system)
Dimensions in millimeters
Type E F G H I J K L
Model FF4S-150 36 649 215 45 400 190 462 373.5
Subject to change without notice!
1
The stated sensitivity (ferrous ball Ø in mm) applies for nonconductive products and refers to the center of the detection aperture (most disadvantageous position).
Products that show intrinsic conductivity due to moisture content, carbon or metal oxide concentration may reduce the sensitivity as well as variations of product temperature,
environmental effects (mechanical shocks, vibration, electromagnetic pollution) or the set product angle. The detectable size of metal particles depends on their type, shape
and position while passing through the metal detector.
2
The throughput rate depends on the flow characteristics and density of the bulk material, on the installation location of the metal separator, and on the possible presence of
any upstream magnet systems.

18
Annex (cont.)
TECHNICAL DATA SHEET FF4S
DIMENSIONS–FF4S-200-250
TECHNICAL DATA
Type
Maximum
Sensitivity
1
Ø Ferrous Ball
Maximum
Throughput2
Inlet Flange
Plate,
Effective ID of
Inlet Pipe
ØA
Inlet,
Nominal
Width
ØB
Material Outlet,
Nominal
Width
ØC
Reject Outlet,
Nominal
Width
ØD
Weight
Lbs/Kg
Model FF4S-200 1.25 mm 1554 cu ft/hr / 44000 l/hr 7.40 in/188 mm 7.83 in/199 mm 7.83 in/199 mm 7.83 in/199 mm 125.66 lbs/57 kg
Model FF4S-250 1.55 mm 2436 cu ft/hr / 69000 l/hr 9.21 in/234 mm 9.80 in/249 mm 9.80 in/249 mm 7.83 in/199 mm 138.89 lbs/63 kg
Dimensions in inches
Type E F G H I J K L M N
Model FF4S-200 1.38 36.65 9.45 2.17 19.09 9.76 23.11 18.05 1.85 5.31
Model FF4S-250 1.89 41.69 12.60 2.17 22.24 10.16 26.26 21.20 2.24 5.83
1 Control unit S
2 Compressed-air connection
3 Separation unit
4 Inlet (Jacob pipe system)
5 Material outlet (Jacob pipe system)
6 Reject outlet (Jacob pipe system)
Dimensions in millimeters
Type E F G H I J K L M N
Model FF4S-200 35 931 240 55 485 248 587 458.5 47 135
Model FF4S-250 48 1059 320 55 565 258 667 538.5 57 148
Subject to change without notice!
1
The stated sensitivity (ferrous ball Ø in mm) applies for nonconductive products and refers to the center of the detection aperture (most disadvantageous position). Products that
show intrinsic conductivity due to moisture content, carbon or metal oxide concentration may reduce the sensitivity as well as variations of product temperature, environmental
effects (mechanical shocks, vibration, electromagnetic pollution) or the set product angle. The detectable size of metal particles depends on their type, shape and position while
passing through the metal detector.
2
The throughput rate depends on the flow characteristics and density of the bulk material, on the installation location of the metal separator, and on the possible presence of any
upstream magnet systems.
15.94 in/405 mm

19
Model FF4 Metal Separator
CONDITIONS OF USE
Use: For inspecting free falling bulk materials in the plastics industry and similar applications in other
industries as well as applications with low hygienic requirements. System is wipedown only.
Bulk material classification:
• Grain shape: Powder, granulates, akes
• Max. grain size: Ball shape Ø < 0.31" (8 mm)
• Pourability: Good, medium
• Attributes: Dry, damp, not abrasive, product effects (material conductivity) can potentially be compensated
• Material ow: Free fall, falling height max 19.69" (500 mm) above top edge (no back draft of material)
• Bulk material temperature: Maximum 176°F/+80°C
• Ambient Conditions: 14°F – 122°F/-10°C to +50°C, 25% to 85% rH, no condensation
SCOPE OF DELIVERY/DESIGN/CONNECTIONS
Scope of delivery: Metal separator comprising two modules, a detection module with the attached control unit S
and a separation module connected by a pull ring. Inlet and outlets made according to Jacob
pipe system.
Mechanical design: Detection unit and electronics housing: Sheet steel, varnished, aluminium grey (RAL 9007)
Separation unit complete: Stainless steel 1.4301 (AISI 304), bead blasted
Scanning pipe: PE-EL (electrical conductive to avoid false tripping)
Parts in contact with product: Stainless steel 1.4301 (AISI 304), PE-EL, Teon, PA
Compressed air connection: 72.52-116.03 PSI (5-8 bar);
0.24/0.31" (6/8 mm) hose connection
Compressed air consumption: FF4S 120: approx 0.11 g (0.4 l)/switch operation
FF4S 150: approx 0.13 g (0.5 l)/switch operation
FF4S 200-250: approx 0.34 g (1.3 l)/switch operation
Electrical design: Operating voltage: 100-240 VAC (±10%) 50/60 Hz
Current consumption: Approx 160 mA/80 mA
Mains cable: 1.8 m with plug
Ingress protection: IP 65, (rain shelter required if operated outdoor)
Reject duration (metal impulse): Adjustable from 0.05 to 29 sec
Self-monitoring system: Detection coil and outputs
Scanning sensitivity: Selectable with 8 adjustments
Operation: See technical data sheet for Control Unit S
OPTIONS/ACCESSORIES
• Visual alarm
- Failure indication
- Failure and metal indication
• Audible alarm
- Failure indication
- Failure and metal indication
• Combination alarm (visual alarm
and audible alarm)
- Failure indication
- Failure and metal indication
• Filter control valve
• Counter (Detection counter)
in a separate housing
• Push button for manual rejection
in a separate housing
• Push button for functional test
in a separate housing
• Test samples
• UL/CSA certicate
• Increased free fall height up to 3.28' (1 m)
• Compressed air monitor
• Monitor system for separation unit
• US-power cable
• Cable set for remote control unit:
9.84', 19.69', 32.81', and 49.21' (3, 6, 10,
and 15 m)
SPECIAL VERSIONS/SUPPLEMENTARY SYSTEMS
• Explosion-proof version ATEX
• Design for bulk material temperatures up to 284°F/140°C
• Design suitable for direct contact with food products
• Model with improved wearout protection
• Pipe transition pieces, customized anges

20
Annex (cont.)
TECHNICAL DATA SHEET FF4G
Annex (cont.)
DIMENSIONS–FF4G-80-250
TECHNICAL DATA
Type Nominal Passage
Ø NW System Jacob
Nominal Passage
Reject Outlet
Ø NW “S”
System Jacob
Maximum Scanning
Sensitivity
1
Ø Fe- Ball
Maximum
Throughput2
Weight
Lbs/Kg
Model FF4G-80 3.15 in/80 mm 3.94 in/100 mm 0.45 mm 282 cu ft/hr / 8000 l/hr 143.30 lbs/65 kg
Model FF4G-100 3.94 in/100 mm 3.94 in/100 mm 0.57 mm 424 cu ft/hr / 12000 l/hr 154.32 lbs/70 kg
Model FF4G-120 4.72 in/120 mm 3.94 in/100 mm 0.60 mm 565 cu ft/hr / 16000 l/hr 165.35 lbs/75 kg
Model FF4G-150 5.91 in/150 mm 5.91 in/150 mm 0.77 mm 883 cu ft/hr / 25000 l/hr 209.44 lbs/95 kg
Model FF4G-200 7.87 in/200 mm 7.87 in/200 mm 0.95 mm 1554 cu ft/hr / 44000 l/hr 319.67 lbs/145 kg
Model FF4G-250 9.84 in/250 mm 7.87 in/200 mm 1.20 mm 2436 cu ft/hr / 69000 l/hr 396.83 lbs/180 kg
Dimensions in inches
1 Inlet
2 Integral detection coil
3 Connecting cable
detection coil/control unit
4 Separation unit
5 Reject outlet
6 Material outlet
7 Connector for connecting
cable pneumatic/control unit
8 Compressed-air connection
Type A B C D
E F G H I
3J K L M N O*
Model FF4G-80 13.27 12.09 10.51 12.28 0.65 25.16 0.28 5.65 16.20 5.43 10.87 1.38 app. 6.22 app. 1.50 –
Model FF4G-100 13.27 12.09 10.51 12.28 0.65 25.98 0.28 5.65 16.22 5.43 10.87 1.10 app. 7.20 app. 1.97 –
Model FF4G-120 13.27 12.09 10.51 12.28 0.65 25.98 0.28 5.65 16.22 5.43 10.87 1.10 app. 7.20 app. 1.97 –
Model FF4G-150 16.38 15.20 15.75 18.70 1.26 34.72 0.35 6.89 18.70 6.61 13.23 1.42 app. 8.15 app. 2.36 7.87
Model FF4G-200 20.47 19.29 22.05 25.20 1.14 50.08 0.35 8.27 21.38 8.66 17.32 1.46 app. 13.39 app. 3.94 11.02
Model FF4G-250 22.83 21.26 27.95 31.85 1.14 58.66 0.35 10.04 25.01 9.65 19.29 1.89 app. 13.39 app. 4.65 13.98