Metkon SPECTRAL 250 Administrator Guide

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metkon.com
OPERATION & INSTRUCTION MANUAL
MANUAL SURFACE GRINDING MACHINE

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EC Declaration of Conformity
Manufacturer : Metkon Instruments Inc.
Address : Demirtas Dumlupinar Organize Sanayi Bolgesi
Ali Osman Sonmez Cd. No: 14 Bursa / TURKEY
Model No : SPECTRAL 250
Herewith declares that;
Tabletop Surface Grinder
is in conformity with the provisions of the Machinery Directive (directive 2006/42/EEC), as amended, and with national
implementing legislation;
is in conformity with the provisions of the Low Voltage Directive (directive 2014/35/EU), as amended, and with national
implementing legislation;
is in conformity with the provisions of the EMC Directive (directive 2014/30/EU), as amended, and with national
implementing legislation;
And furthermore declares that
the following (parts/clauses of) standards have been applied
EN ISO 12100:2010, TS EN 60204-1, TS EN IEC 61000-6-2, TS EN 61000-6-4
Authorized Person: ERCIN SENAY
Position: Manager of Research and Development Department
Year: 2019
Bursa / Turkey

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Index
DESCRIPTION ............................................................................................................................ 4
Design .....................................................................................................................................................................................4
Technical Data ........................................................................................................................................................................5
Warranty .................................................................................................................................................................................5
Safety Precautions ..................................................................................................................................................................5
INSTALLATION & SET UP........................................................................................................... 6
Unpacking & Checking Contents of Package ...........................................................................................................................6
Step by Step Unpacking...........................................................................................................................................................6
Installation and Set-Up ...........................................................................................................................................................7
CONTROL PANEL....................................................................................................................... 8
Control Button Functions ........................................................................................................................................................8
OPERATION ............................................................................................................................... 9
SERVICE AND MAINTENANCE ................................................................................................... 9
Maintenance ...........................................................................................................................................................................9
Troubleshooting.................................................................................................................................................................... 10
ACCESSORIES AND CONSUMABLES......................................................................................... 11
Accessories ............................................................................................................................................................................11
Consumables..........................................................................................................................................................................11
TECHNICAL DOCUMENTATION ................................................................................................ 11
Customer Service ...................................................................................................................................................................11

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DESCRIPTION
Design
Optical emission spectrometry (OES) using arc and spark
excitation is the preferred method to determine the chemical
composition of metallic samples. This process is widely used
in the metal making industries, including primary producers,
foundries, die casters and manufacturing. Due to its rapid
analysis time and accuracy, Arc/Spark OES systems are most
effective in controlling the processing of alloys. This
technique can be used for many aspects of the production
cycle including in-coming inspection of materials, metal
processing, quality control of semi-finished and finished
goods and many other applications where a chemical
composition of the metallic material is required.
X-Ray fluorescence is one of the most versatile methods to
determine elements in a sample. The material is exposed to
x-rays that cause each element to emit its own unique
fluorescent x-ray. The subsequent analysis of the results is
based on comparisons to standard samples with given
chemical composition.
Sample preparation of metals and materials have become
more and more important because of the rapid development
and improvement of both software as well as OES and XRF-
devices during the past few years that shifts the detection
limit for trace analyses. It is crucial to have the sample
properly prepared.
The sample needs to be both representative, homogeneous
and with an even surface in order to eliminate factors that
can influence the results.
For the preparation of solid metal samples, Metkon offers
manual and automatic sample preparation machines - from
the small tabletop disc surface grinder to automatic grinding
machine. With Metkon Sample Preparation Machines, you
feel yourself ready for the analysis.
SPECTRAL 250 is a table-top portable surface grinder for the
preparation of steel samples for spectroscopy. Its compact
design with vibration free operation makes it a practicle
instrument to work with. Low noise and dust generation
levels as well as standard outlet for dust exhauster are
additional advantages.
ø250 mm grinding disc is dynamically balanced for smooth
running. Grinding paper is sucked to the grinding disc which
does not require any glue. Papers with 60 grit can be used to
obtain the desired surface quality. SPECTRAL 250 is equipped
with electronic brake system bringing the motor to a quick full
stop just in seconds after it has been stopped. A safety switch
guarantees automatic switch off when the lid is opened.

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Technical Data
Warranty
The SPECTRAL 250 is guaranteed against defective material or
workmanship defects for a period of 12 months from the date
of receipt by the customer or latest 18 months after the
shipping date. The warranty is not valid if inspection shows
evidence of misuse or unauthorized repair. Warranty covers
only replacement of defective materials. If this unit need to be
returned to our factory for service, please contact your
distributor for authorization and include the following details:
Serial Number of the unit, Invoice number and date. Transport
costs belong to the customer.
NOTE
Disabling Safety switch on the SPECTRAL 250
will void warranty.
NOTE
Warranty does not cover the safety switch. Do
not apply excessive force to open the front
door when safety switch is locked. Otherwise,
it can be broken in a short time.
ATTENTION
The equipment is designed to be use with
METKON accessories and consumables. In
case of misuse of equipment, improper
installation, alteration, use of different source
parts, improper repair, METKON will accept NO responsibility
for any damages to the operator or the equipment.
Disassembling of any part should always be performed by a
qualified technician.
Safety Precautions
Read the below instructions carefully before use.
Place the machine on a sturdy and safe table.
The equipment must be installed in compliance with
local safety regulations.
Only use approved METKON accessories and
consumables to achieve max. safety and lifetime.
Follow the instructions and safety regulations when
lifting and carrying the equipment.
While grinding, be careful not to touch the grinding disc.
Do not try to collect a specimen from the working area
while the disc is turning.
Disconnect the electrical connection before servicing the
equipment.
The equipment emits normal noise. However, during
operation, the noise level may become higher. It is
recommended to wear ear protectors.
It is recommended to wear steel toe shoes during
transportation.
Follow the periodically maintenance.
NOTE
METKON Instruments Inc. can make any
changes without notice on the equipment,
accessories, consumables and miscellaneous
products. Consequently; visual or written
information on the instruction manuals,
technical materials, catalogues, website, product videos and
other marketing materials may show inconsistencies and
may be different from the product.
Model
Order No
SPECTRAL 250
80 06
Number of Stations
1
Wheel Diameter, (mm)
250
Wheel Speed, rpm
2800
Motor Power, kW
1,1
Dust Exhauster
Yes
Paper Adjustment
Vacuum
Dimensions, WxDxH, (cm)
35 x 45 x 33
Weight, (kgs), with cabinet
40 kgs
Mains
230 V, 1-phase, 50 Hz.

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INSTALLATION & SET UP
Unpacking & Checking Contents of Package
Carefully unpack and check contents of the package. If any
components are missing or damaged, save the packing list
and materials and advise your distributor and the carrier of
the discrepancy.
Hose Clamp, ø40 mm, 2 pieces
Hex Key, 10 mm, 1 piece
Brush, 1 piece
WARNING
SPECTRAL 250 weights approximately weighs
40 kg and be sure that there are enough people
(at least 2) to safely lift the unit from the
shipping carton. It is recommended to wear
safety shoes during transportation.
ATTENTION
SPECTRAL 250 is bolted to a wood base for
protection during shipping. Remove the bolt
securing the unit to the wood base.
SPECTRAL 250 is only available as bench top.
SPECTRAL 250 should be placed on a sturdy and safe
platform. Please be sure that the platform is large enough
and can stand its weight.
In order to work with equipment comfortably, it is
recommended to leave at least 30 cm space from all side
of the equipment.
You can see the dimensions and weight of SPECTRAL
250 as below:
Dimensions
W
D
H
35 cm
45 cm
33 cm
Weight
Approx. 40 kgs
•Please also be sure that there is enough space for dust
container which supplied with the equipment.
Step by Step Unpacking
If Sent in a Carton Box (Equipment without Cabinet)
Carefully remove the outer stretch wrap, cut the strips
and remove the cover.
Open the box and remove filling materials inside the box.

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Remove the box.
Equipment is fixed on the wooden base with bolts. Lift
the equipment from the wooden base by using a lifting
equipment and then carefully remove these bolts.
Carefully remove the protective bubble wrap. Be carefull
not to damage equipment while using a knife. Remove
the protective foam on the touch screen.
Installation and Set-Up
SPECTRAL 250 unit is shipped as already assembled.
Place the unit on a sturdy table with convenient
access to power source.
Make the connection of dust hose between the
instrument and dust tank by fixing the clips.
Place the grinding disc and tighten the fixing bolt by
18 Wrench.
Then close the top cover.
Insert the plug and it is ready for operation.
CAUTION
Follow approved procedures and take all
necessary preventive safety measures when
lifting and installing this equipment. Improper
lifting can result equipment damage.
Locate the SPECTRAL 250 with convenient access to a 1-
phase power source. Be sure to allow a minimum space of 30
cm at the rear of the machine.
Electrical Installation
Before making electrical connections, check that the voltage
and frequency stated on the specification plate correspond to
the local voltage and frequency. Check that the values for the
voltage, is compatible with the intended electrical supply
before installation.
ATTENTION
Connect the unit to the grounded mains
voltage. The SPECTRAL 250 requires a 1-phase
electrical supply and Earth/Ground.
WARNING
Electrical Shock Hazard. A qualified electrical
technician should perform all hard wiring and
electrical maintenance.
Disconnect the power supply before making any
electrical adjustments.
Make sure that the supply voltage and frequency is
correct. Check the values from the machine identification
plate located at the rear of the machine
Voltage / Frequency
Operational
Power Range
Fuse Rating
115 V, 50/60 Hz. 1 ph.
110 - 120 V
6 A (C Type)
230 V, 50/60 Hz. 1 ph.
220 - 240 V
6 A (C Type)

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Identification Plate
Connect the equipment to the grounded mains voltage.
Type E or Type F Power cord is supplied with the
equipment.
If you do not have a suitable power socket, in this case
you should supply a suitable power cord.
Length of power cable is 1.8 meters.
Power Cable
Noise Level
Approximately 70 dB is measured at idle running at a distance
of 1 meter from the machine.
CONTROL PANEL
SPECTRAL 250 Control Panel
Control Button Functions
Start
Activates the grinding motor.
Stop

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OPERATION
The main switch is at right side of the instrument. START,
STOP and EMERGENCY STOP buttons are on front panel.
START button starts the rotation and the disc will go on
rotating with 2800 rpm fix speed. STOP button stops the
rotation. You can use the EMERGENCY STOP to stop the
instrument immediately for safety. The thermal overload
protector and fuses are at the back of the instruments.
If the motor is overloaded, the overload switch will pop out
and the power to the motor will be cut. After a short period of
time, the overload switch can be reset and motor started
It is recommended to use Sample holders to handle your
specimen due to potential heat increase during grinding.
(Refer to Accessories Section) Fig.3.
Press START.
Grind your sample until you reach the desired flat surface.
And press STOP
Magnetic Sample Holder
ATTENTION
During the operation DO NOT turn off the
equipment directly from the main switch. First
press STOP button and accordingly turn of the
machine from main switch.
In case of emergency, press emergency stop button. The
brake system will be activated for quick disc stop.
SERVICE AND MAINTENANCE
Maintenance
Clean the instrument by a wet cloth so that there are no
particles, residual material etc.
After working process, remove the grinding paper and clean
the grinding bowl completely. Especially clean the limit
switch’s around removing all the residual materials. Check the
dust transport hose and clean the dust tank completely.

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Troubleshooting
ERROR
DESCRIPTION
ACTION
Power lamp is off
The main switch is OFF
Turn on the main switch from the
back of the equipment and check the
mains cable.
Fuse blown
Check the fuses located at the back of
the equipment.
The machine does not start
The main switch is OFF
Turn on the main switch from the
back of the equipment and check the
mains cable.
Fuse blown
Check the fuses located at the back of
the equipment.

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ACCESSORIES AND CONSUMABLES
Accessories
Consumables
TECHNICAL DOCUMENTATION
Customer Service
Our factory-trained assembly personals are at your disposal for customer service.
Please contact the following address:
Metkon Instruments Inc.
Demirtas Dumlupinar Organize Sanayi Sitesi
Ali Osman Sonmez Cad. No: 14 Bursa/TURKEY
Tel: [phone]
Fax: [phone]
E-Mail: [email protected]
Web: www.metkon.com
Order No
Accessories for SPECTRAL 250
GR 1804
Sample Holder for round specimens, Magnetic type. chuck
GR 1805
Sample Holder for round specimens, Mechanical type.
Order No
Grinding Tips for SPECTRAL 250
37-040-060-22
Ø250 Disc, P 60 Grit, Corundum, general use, soft medium-hard materials
36-040-060-22
Ø250 Disc, P 60 Grit, Zirconium oxide, long life time, hard materials

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