Loma IQ2 User manual

Loma Systems
Loma IQ2Service Manual Part No 814119, Issue Level K 19/02/03
LOMA IQ2
Service Manual
Search Head and Controls
Contents
Open Flash Memory Programming Supplement (only if present)
Amendment Record on page 2

Loma Systems
Loma IQ2Service Manual Part No 814119, Issue Level K 19/02/03
Amendment Record
Module Amendment Issue
Amendments record introduced B
5092 Relative humidity amended, IP ratings removed. (UL requirements) B
7026 Principles of Operation drawing quality improved. B
8023 Warnings associated with the safety mesh cover over the PSU area of the
control board improved.
Information on gaining access to the ac input connector & reject relays
added.
C
7026 "Configuration and Set up Information" New "ADC setup" menu chain
added to the "Loma menu" for version 1.1 software.
Details of individual ADC set up menus together with how & when to use
them added.
New "Step 6" (ADC set up) added to the "Step by Step" configuration
sequence.
D
6022 Symbols for Run error & System Fault corrected, they were reversed. E
7026 Symbols for Run error & System Fault corrected, they were reversed. E
Hyperlink to the Flash memory Programming Supplement added from
manual front page. E
3000 Loma Gmbh new address added. E
Flash Note on fitting a boot eprom added. E
7026 Serial link 16-way chassis connector wiring amended to suit the new IQ2
serial link loom assembly. F
7026 New IQ2 serial link loom assembly part number added. F
8023 Section added on +/-12v DC protection fuses. Locations added to figure 2. F
9095 Reference to +/-12v Dc protection fuses added to DC rail checks. F
11050 New control & psu board and protection fuse part numbers added to spare
parts list. F
Flash Step 9 re-written to recommend a cold start after flash memory
programming is completed. F
7026 38mm Pharmaceutical aperture size corrected G
8023 Voltage free relay contact information contacts shown statement corrected
to "de-energised". G
3000 Loma France & Germany for service now call Loma bv G
Flash Step 9 re-written to instruct a cold start after flash memory programming is
completed. G
3000 New address & telephone numbers for bv, France & Germany Sales &
Service H
8023 Lethal Hazard. Note added about mesh removal whilst detector is
powered. H
8023 Control board removal instruction 3. Report/log package may be included
with replacement boards. H
8023 Control & PSU Board removal & refitting. Note on replacing with the same
assembly part number added. H
11050 New part numbers added for control boards with report/log package fitted. H
11050 UL & non UL control board & PSU part numbers fitted with reports & logs
package added. H
3000 Telephone numbers for bv, France & Germany Sales & Service J
8023 New PSU cover & main earth ground added J
11050 New parts added, two piece safety cover & watertight glands J
5092 Information added regarding immunity modifications for UHF walkie-talkie
radios. K

Loma Systems
Loma IQ2Service Manual Part No 814119, Issue Level K 19/02/03
Module Amendment Issue
7026 Dual frequency & Auxiliary (Aux.) relay menu positions added K
7026 Catalogue freefall & ferrous in foil coil gaps added K
7026 Details of new trend type tracker added K
8023 Dual frequency information aded K
9095 Dual frequency balance & phase integrity checks added K
11050 Dual frequency board part numbers added K

1The Loma Group Companies & Service Centres
2Cautionary Advice
3Product Description & Environment
4Fault and Error Diagnosis
5Configuration & Setup
6Maintenance
7Functional Testing
8Wiring/Connection Diagrams
9Spare Parts Lists
10 Service Returns Form

The Loma Companies & Service Centres
Module 3000 1-1
SALES
UK
Loma Systems Limited, Southwood, Farnborough, Hampshire, GU14 0NY, England
Telephone: [phone] Fax: [phone]
E-mail: [e-mail]
CANADA
Loma Canada Limited, 333 Wyecroft Road, Unit 2, Oakville, Ontario, Canada L6K 2H2.
Telephone: [phone] Fax: [phone]
E-mail: [e-mail]
NETHERLANDS
Loma Systems BV, Panovenweg 22, 5708 HR, Helmond, Netherlands.
Telephone: [phone] Fax: [phone]
E-mail: [e-mail]
FRANCE
Loma Systems BV, Panovenweg 22, 5708 HR, Helmond, Netherlands.
Telephone: [phone] Fax: [phone]
E-mail: [e-mail]
GERMANY
Loma Systems BV, Panovenweg 22, 5708 HR, Helmond, Netherlands.
Telephone: [phone] Fax: [phone]
E-mail: [e-mail]
USA & SOUTH AMERICA
Loma International Inc., 283 East Lies Road, Carol Stream, Illinois 60188, USA.
Telephone: [phone] / 1-800-USA-LOMA Fax: [phone]
E-mail: [e-mail] Internet address: www.loma.com

The Loma Companies & Service Centres
Module 3000 1-2
THE LOMA GROUP SERVICE CENTRES
UK
Loma Customer Services, Unit 43 Campus Road, Bradford, West Yorkshire
BD7 1HR
Telephone: [phone] Fax: [phone]
E-mail: [e-mail]
BENELUX
Loma Systems BV, Panovenweg 22, 5708 HR, Helmond, Netherlands.
Tel. Service [phone]
FRANCE
Loma Systems BV, Panovenweg 22, 5708 HR, Helmond, Netherlands.
Tel. Service [phone]
GERMANY
Loma Systems BV, Panovenweg 22, 5708 HR, Helmond, Netherlands.
Tel. Service: [phone]
USA and SOUTH AMERICA
Loma International Inc., 283 East Lies Road, Carol Stream, Illinois 60188, USA.
Telephone: 1-800-USA-LOMA / 1-630-588-0900 Fax: [phone]
CANADA
Loma Canada Limited, 333 Wyecroft Road, Unit 2, Oakville, Ontario, Canada L6K 2H2
Telephone: [phone] Fax: [phone]
REST OF WORLD
Loma Customer Services Dept., Unit 43 Campus Road, Bradford, West Yorkshire
BD7 1HR, UK
Telephone: [phone] Fax: [phone]

Cautionary Advice
Module 4004 2-1
CAUTIONARY ADVICE
CONTENTS
Safety Warnings .....................................................................................................................2
Lethal Hazard Electrical Supplies.........................................................................................2
Working on Equipment..........................................................................................................2
Lifting Equipment...................................................................................................................2
Moving a Search Head...........................................................................................................2
Using a Crane .........................................................................................................................3
Using a Fork Lift Truck ..........................................................................................................3
Dealing with Fire.....................................................................................................................3

Cautionary Advice
Module 4004 2-2
Safety Warnings
Listed below are safety warnings that are used throughout this manual. It is
strongly recommended that personnel who are, or will be, responsible for
maintaining or operating the equipment described in this manual should read
and understand these warnings.
1. LETHAL HAZARD – ELECTRICAL SUPPLIES. A current of 100 milli-amps
passing through the body for one second can kill. This can occur at voltages as
low as 35V ac or 50V dc. The equipment described in this manual uses
electrical power which can be lethal. Unless absolutely necessary, cleaning,
inspection and maintenance must not be carried out without first isolating the
equipment from all electrical supplies.
2. WORKING ON EQUIPMENT. If it is essential to work on the equipment with
electrical power connected, the work must be undertaken only by qualified
personnel who are fully aware of the danger involved and who have taken
adequate safety precautions to avoid contact with dangerous voltages
3. LIFTING EQUIPMENT. Use only the correct slings and lifting tackle to move
heavy items of equipment described in this manual. Inspect all slings and lifting
tackle prior to lifting the equipment to ensure that:
(a) The safe working load will not be exceeded.
(b) There are no frayed or broken strands.
(c) Hooks, rings, etc. are not damaged.
WARNING
MOVING A SEARCH HEAD. Some metal detector search heads are
extremely heavy. Care must be taken when moving such a head to ensure
that it can not fall or topple over. This could result in death or severe
injury to an individual and/or severe damage to the head.
Depending on the size and weight of a head, either a crane or a fork-lift
truck will be required to lift and move it into the final location.

Cautionary Advice
Module 4004 2-3
Using a Crane
(a) Position the straps beneath the head so that it can not tilt when lifted. Attach
the straps to the crane.
(b) Lift the head and carefully move it to the required location.
(c) Lower the head and remove the straps.
Using a Fork Lift Truck
(a) Position the forks beneath the head so that it cannot tilt. Raise the lift
sufficiently to lift the head clear of the ground and any obstacles.
(b) Carefully move the head to the required location.
(c) Lower the forks and withdraw them from the head.
Dealing With Fire
4. In the unlikely event of fire occurring in an item of equipment manufactured by
Loma Engineering, it is important that a fire extinguisher containing the correct
type of extinguishing material is used. Fire on electrical equipment must be
extinguished using a dry powder extinguisher (Blue in the United Kingdom).

Product Description and Environment
Module 5092 3-1
PRODUCT DESCRIPTION AND ENVIRONMENT
CONTENTS
Search Head and Control Unit Technical Specification ......................................................2
Electrical Supplies...................................................................................................................3
Spurious Triggering ................................................................................................................3
EMC Interference .....................................................................................................................4
Radio Frequency Interference................................................................................................5