Handbook for Magnaflux YM5 Recharger - Apr 14

MAGNAFLUX PERMANENT MAGNETS
YM5 PERMANENT MAGNET YOKE
Consists of hinged arms and rotating pole pieces to allow a wide variety of profiles to be
magnetised, whilst the specifically shaped pole pieces permit easy removal from the
components. The elements of the YM5 are cast in Magloy 1 for maximum magnetic field
strength.
Supplied with a keeper bar, which has false indications to enable you to easily check the
magnetisation strength.
Features:
Field strength, with pole tips in contact:
Field strength in centre of 50 mm air gap:
Weight:
Pull test:
> 7,000 gauss
> 400 gauss
3 Kg
> 18 Kg (40 lb)
HANDBOOK FOR
MAGNAFLUX
YM5 RECHARGER
Part number: 001Y005
PART NUMBERS:
007E100, 007E100B
Handbook for Magnaflux YM5 Recharger
RECHARGING DATA
Date
Test lift
Remarks
Signed
Certificate of Conformity
YM5 Charger:
Serial number:
Certified that the above item conforms to and meets the
requirements of the following:
EC Directives
Specifications
73/23/EEC
89/392/EEC
91/368/EEC
89/336/EEC (Emissions)
92/31/EEC (Emissions)
BS6133 – 1995
BS60204 – 1998
Certificate is issued under the auspices of the Equipment
Product Manager:
Magnaflux (A Division of ITW Ltd),
Faraday Road, South Dorcan Industrial Estate,
Swindon, Wiltshire, SN3 5HE, UK
Tel: +44 (0)1793 524566
Fax: +44 (0)1793 490459
Email: [email protected]
www.eu.magnaflux.com
MAGNETIC FIELDS
Electric and magnetic fields (EMF’s) arise from the generation, transmission and use of
electricity. The result is that everyone today is exposed to a complex mix of EMF’s both at
home and work.
Magnetic fields are created when an electric current flows. Magnetic and electric fields
then exist together. The greater the current the stronger the magnetic field.
PARTS LIST
Item
PB1
Quantity
1
Description
Main switch
Part Number
015S230
PB2
1
Push button ‘Re-Mag’
022P040
1
Contact block 1 N/O
015S159
1
Batteries (if ordered)
003B012
1
Battery charger
039B007
1
In line fuse holder
002F038
1
Fuse 5A quick blow
001F112
Magnetic particle inspection involves the generation of magnetic fields to locate defects in
ferrous materials. It has been used for many years with no reported health effects.
Although and extremely useful and effective Non Destructive Testing (NDT) method, there
are growing concerns that exposure to EMF’s could have detrimental health effects.
There is very little conclusive information on the effects of exposure to intense fields.
However, research by various authorities has shown that under certain circumstances
acute exposure to intense fields of around 60 mT can result in headaches and alterations
in visual response.
The National Radiological Protection Board (NRPB) has developed guidelines to protect
people from these potential effects. No health risks have been established for weak fields.
Typical magnetic field strengths for domestic appliances
Vacuum cleaners – 2-20 microtesla @ 30 cm from the appliance
Electric drills – 2-20 microtesla @ 30 cm from the appliance
Typical magnetic field strengths for some Magnaflux MPI equipment
MAG 50 coil – 1.3 millitesla @ 30 cm
MAG 50 head/tailstock – 1.5 millitesla @ 45 cm
Y6 Yoke < 1 millitesla @ 15 cm
Units of measurement for Magnetic Field Strength – tesla (T)
1 tesla = 1,000 millitesla (mT); 1 millitesla = 1,000 microtesla (µT)
MAGNETIC FIELD RISK
Persons susceptible to strong magnetic fields, including those with pacemakers, are
advised not to use or approach this equipment without seeking professional advice.
FS1
BATTERY SAFETY PRECAUTIONS
GENERAL
Take every precaution to avoid acid spillage.
The YM5 Recharger (Re-Magnetising) Fixture comprises a baseboard on which are
mounted one switch unit and two 8 turn coils. Supplied loose with this is a Battery Charger,
which operates at 220/240 V, 50 Hz and an extended keeper bar.
Handling – wear full protective clothing where there is a risk of splashes
Spillage – wearing full protective clothing and working from the windward side, wash
down immediately with a copious supply of water, directing the water jet to the outside
of the spillage and carefully working towards the centre. Large spillages should be
contained with soda ash, sand or earth and gradually neutralised with soda ash,
finally washing down with water.
Storage – use only approved vessels. Store them in a cool place away from other
chemicals, sunlight and hot pipes etc. Bungs on all containers should be kept
uppermost. Adequate ventilation in the building where the acid is stored or handled is
essential.
Fire – sulphuric acid in contact with metals slowly generates hydrogen gas which
forms an explosive mixture with air. Naked lights should not be used in or around road
tankers, storage tanks or other containers of sulphuric acid.
FIRST AID
Splashes in eyes – immediately irrigate the eye(s) for at least 15 minutes using large
amounts of water or, if available, saline solution. Obtain medical treatment.
Splashes on skin – immediately remove contaminated clothing, taking care to avoid
self contamination, and wash the affected parts with large quantities of water. If
symptoms occur obtain medical treatment.
Swallowed – drink copious quantities of lime water or milk of magnesia, or
alternatively plain water and milk. Do not induce vomiting. Obtain medical attention
preferably at a hospital as soon as possible.
The YM5 Recharger is designed to run from one 12 V car battery part number Yuasa
SWLL2250 (FR) or equivalent.
SETTING UP
Connect the appropriate leads to the terminals of the battery, greasing them well to avoid
corrosion. Charge the battery if not purchased locally fully charged.
OPERATION
Ensure that the feet of the YM5 are in good condition and flat to make good contact
with the keeper bar
Position the Yoke by placing each leg through a coil (as shown in the diagram)
ensuring that the feet protrude through to the other side. Place the extended keeper
bar across the exposed feet of the Yoke making sure good surface to surface contact
is made between the feet and the bar.
Once the Yoke is in place then ensure that the Red switch knob, PB1, is in the raised
position, then press the Green ‘Re-magnetise’ button, PB2, for no more than one
second to re-magnetise the Yoke
Note: During an emergency or to prevent accidental operation pressing the red switch
knob will break the main and auxiliary contacts, disconnecting the coils and switch
solenoid from the batteries.
The Yoke can now be removed. To do this slide the keeper bar off the Yokes feet,
rather than pulling it off. Remove the Yoke from the coils and immediately reposition
the Yoke legs. Fit the keeper bar that is supplied with the Yoke, not one from the
Recharger.
Note: A properly magnetised YM5 Yoke will lift a weight of 18 Kg suspended from the
pole faces (feet). A certified lift weight, part number 026T018 is available from Magnaflux.
The YM5 Recharger re-magnetisation procedure may be carried out ten times from fully
charged batteries before the batteries will need re-charging. Use the supplied battery
charger to recharge the batteries. The batteries should be checked for acid levels at
weekly intervals.
BATTERY HEALTH & SAFETY
WARNING:
The gases given off when charging are explosive
No smoking or naked flames. Ensure that cables and electrical equipment are
handled in such a way as to avoid sparks.
Before fitting or removing the batteries, make sure that all equipment connected to it is
switched off to avoid accidental sparking
Take care that tools do not cause accidental short-circuits
When charging, connect the battery to the charger before switching the charger on.
Reverse the process at the end of charging.
When charging indoors ensure that there is adequate ventilation
Treat sulphuric acid with respect. It is a highly corrosive liquid and will cause severe
injury if splashed on the skin or in the eyes, or if taken internally. It rapidly destroys
most clothing. Sulphuric acid is scheduled as a poison in Part 2 of the Poisons List.
Always:
Wear acid-resistant clothing, goggles, PVC gloves and rubber boots
Have a copious supply of water available
Keep an eyewash bottle ready, containing 1% of saline solution
SUBSEQUENT CHARGING
METALLIC IMPLANTS AND MEDICAL ELECTRONIC DEVICES
The charging current in amps should not be more than 10% of the battery’s rated capacity
in ampere hours (A/h) – ie charge a 50 A/h battery at 5 amps. Before gassing commences,
the charging rate can be higher than this for short periods, but in no case must the acid be
hotter than +55°C. Observe the instructions of the battery charger manufacturer.
The NRPB advises that interference with the normal operation of medical electronic
devices may occur at levels of exposure to EMF’s below the investigation level (1.6 mT). In
some circumstances heating of metallic implants may occur. Advice on acceptable
exposure levels for people with metallic implants or medical electronic devices, such as
pacemakers, should be obtained from the manufacturers and those responsible for
implanting such devices.
After charging, check the acid level again and, if necessary, top up with distilled or
deionised water and fill to the acid level marking.
MAINTENANCE
The new technology used in maintenance-free batteries means that under normal
conditions of use it should no longer be necessary to top up the battery with distilled water.
If overcharging occurs it can become necessary to top up. In such cases it is advisable to
check the acid level even on a maintenance-free battery.
Keep the battery clean and dry, and take care that the connections to the terminals are
firm and secures.
STORING THE BATTERY
Before storing, the battery should be fully charged.
Storage conditions: -20 °C to + 50 °C.
Battery
Baseboard
YM5 Yoke
Coils
Switch assembly
Keeper bar