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Metalarm

 Series 3500 Metal Detectors

9

FIGURE 4 

User supplied stainless steel “L” brackets are 
suggested for securing the search coil assembly to 
the conveyor. Brackets should be fitted to the coil. The 
area for this purpose is shown on the coil assembly 
drawing. (See Figure 4)

The search coil should then be bolted to the conveyor 
frame so that the coil socket is on the opposite side of 
the conveyor frame from any heavy-duty cables  
or wiring.

Fit the top search coil section and bolt it in place.

A recommended idler spacing of 48"- 60" should apply 
to the infeed and outfeed idlers adjacent to the search 
coil. An idler isolation kit is recommended and may 
be purchased from the factory. The idler isolation kit 
provides suitable materials to electrically insulate the 
idlers from the conveyor frame. Insulating the idlers 
directly adjacent to each side of the search coil will help 
to alleviate any possible false tripping. Electrical loops 
can be created from the metal detectors field in relation 
to the surrounding metal. The idlers, either side of the 
search coil, should be checked to see that all nuts and 
bolts are tight. 

In the case of series connection, connect the lower 
coil using the short length of cable provided to the 
unmarked socket on the top coil. The cable to connect 
the search coil to the control unit should be connected  
to the socket marked ‘CU’ on the top search coil. In  
the case of transmit/receive mode operation, both coils 
are connected directly to the control unit.

In both cases make sure the cables are secured to the 
conveyor frame and protected to prevent them  
being damaged.

The search coil coax cable must not cross directly 
under the search coil, as this may cause false tripping  
to occur. The cable should be replaced should any 
nicks in its outer cover occur.

If standard metal conduit must be used be used to 
protect the coil cable(s), separate conduits must be 
used for each cable; receiver and transmitter. If a clip 
detector is required, the cable may be run in the same 
conduit as the receiver or transmitter coil.

Содержание METALARM 3500 series

Страница 1: ...al Detectors Installation Operation and Maintenance Instructions ERIEZ MAGNETICS HEADQUARTERS 2200 ASBURY ROAD ERIE PA 16506 1402 U S A WORLD AUTHORITY IN SEPARATION TECHNOLOGIES MM 246A METALARM SERI...

Страница 2: ...labels must be affixed to this product Should the safety label s be damaged dislodged or removed contact Eriez for replacement CAUTION Metal Detectors emit electromagnetic fields Contact the American...

Страница 3: ...o High Frequency Inverters Bag Dropper 12 ELECTRICAL CONNECTIONS 14 Power Supply 14 Control Relay Contacts 15 Fuse 15 Sensor Coil Connections 15 OPERATING INSTRUCTIONS 18 Indicator Lights 19 Sensitivi...

Страница 4: ...3 cables are routed separately from 1 and 2 Category 3b are to be spaced 2 5 cm 1 from Category 1 for each meter of run Category 3a cables are to be spaced 25 cm 10 from category 1 for each meter of r...

Страница 5: ...ctors 5 The Metalarm 3500 and 3500 CE Metal Detector consists of a control unit one or more sensor coils dependent upon the application and optional accessories such as the sack dropper Description FI...

Страница 6: ...llation Metal when detected can easily be removed from the conveyor belt There is no moving metal in the vicinity Any metal base plate present can be removed or replaced by non metallic material Any m...

Страница 7: ...he conveyor mid way between two idler sets where There will not be a return idler or cross piece beneath the search coil There is not a joint in the conveyor frame Metal when detected can easily be re...

Страница 8: ...notches in the bottom of the search coil at all four corners so as to lower the search coil within the conveyor frame FIGURE 3 Brackets not supplied to hold the search coil to the conveyor frame shoul...

Страница 9: ...Electrical loops can be created from the metal detectors field in relation to the surrounding metal The idlers either side of the search coil should be checked to see that all nuts and bolts are tight...

Страница 10: ...oles at 4 100mm spacing or longer depending upon the weight and width of the search coil Countersink the holes from the inside of the conveyor Locate the search coil into the cut out and clamp it in p...

Страница 11: ...il should be mounted such that the conveyor belt passes above the plain surface of the coil with the resin side facing down INSTALLATION RECOMMENDATIONS FOR CONNECTING RFI FILTERSTO HIGH FREQUENCY INV...

Страница 12: ...gh frequency earth currents flow and thereby minimize their harmful effect on other nearby sensitive devices All grounding leads in cluding the filter ground inverter ground and shielded cable grounds...

Страница 13: ...on TB3 Also a jumper on the QM2 is required from TB2 12 to TB3 1 Refer also to the drawing on the follow ing page ADJUSTMENT Switch the power on to both the bag dropper and the Metal Detector It shoul...

Страница 14: ...cont Electrical Connections The standard electrical connections are for power supply connections and for sensor coil connections Other cables may be added as necessary for control and monitoring funct...

Страница 15: ...lication or for a maximum of 250V AC application Terminals 11 and 12 are used for a fault indication FUSE Note there is only one fuse on this Control Unit It is located on the front panel and is rated...

Страница 16: ...configuration for optimum sensitivity The top and bottom search coils will be connected together by means of a 20 5 meter or 40 1 meter interconnecting cable FIGURE 13 There will then be one main cabl...

Страница 17: ...a conductive material is being conveyed or when a certain size piece of metal is to be detected and all smaller pieces being ignored When in the TX RX configuration both the top and bottom search coi...

Страница 18: ...ensor coil away from all surrounding metal and repeating the test After these adjustments the Detect light and the Reset light on the detector door may be illuminated Pressing the Reset lamp button wi...

Страница 19: ...ome false alarms may nevertheless occur occasionally Such triggering is usually due to transient effects which are both infrequent and unpredictable Metallic framework encircling the search coil can a...

Страница 20: ...ional optional features refer to Figure 16 Repairs Adjustments Note Consult Eriez metal detector technical help before adjusting any of the following settings Before changing any of the following adju...

Страница 21: ...gested to perform adjustment of this control using a half turn per each sensitivity test until the desired level is achieved The actual threshold voltage level can be measured between TP 16 and TP 0 G...

Страница 22: ...ay be necessary when the plant switch gear is generating electrical interference or brushes are arcing or when other electrical noise is being created This interference will propagate through the air...

Страница 23: ...ting symptoms is very helpful in isolating the causes of the problems Correlating malfunctioning occurrences is invaluable for environmental interference trouble shooting Observe whether interference...

Страница 24: ...being picked up by the sensor However the problem may also be a break on the sensor cable Check for breaks at this time and replace the cable if necessary If the cable is in good condition search for...

Страница 25: ...Operate welding equipment only at times when metal detector is not required to operate Call the factory service department if unable to arrive at a satisfactory solution ELECTRONIC CIRCUIT BOARD REPL...

Страница 26: ...7 Cable Gland PG 1 Brass 816516 As Req d 8 LED s MBC Red 816517 1 9 LED s MBC Yellow 816518 1 10 Front Label MA3500 CE 816519 1 11 Door Key 816520 1 12 Lamp 12V MBC 818594 2 SEARCH COIL CABLES DESCRI...

Страница 27: ...521 1 23 Push Latch Arrow 2001 816522 3 24 Bargraph Module with Plug 816523 1 25 Control Knob 816524 3 26 Plain Cap for Control Knob 816525 1 27 Pointer Cap for Control Knob 816526 2 28 Relay 4p C O 8...

Страница 28: ...0 345 4946 Fax 814 838 4960 International Fax 814 833 3348 Web Site http www eriez com e mail eriez eriez com Manufacturing Facilities AUSTRALIA BRAZIL CANADA CHINA INDIA JAPAN MEXICO SOUTH AFRICA UNI...

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