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GEDET is a versatile and sophisticated
instrument for measurement of coatings of metal or alloy on substrates by
electroplating or other methods. It is simple enough to be welcomed by operator of average skill when a large number of
routine measurements on standard metallic coating are to be made. At the same time, it is sophisticated enough to be
employed by a scientist for his investigation purposes on metallic and alloy coatings. It works on Coulometric
principle.
It has a very high accuracy and repeatability. It can measure thickness on flat or curved
surfaces. GEDET also measures coating on known length of wire or
pins using Acrylic cell which is supplied as an accessory. |
Standard Coating / Base combinations
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Coating
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Base
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CADMIUM
CHROMIUM
COPPER
GOLD
LEAD
NICKEL
SILVER
THIN SILVER
TIN
TINPLATE
ZINC
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Aluminium, Brass, Copper, Nickel, Steel
Aluminium, Brass, Cadmium, Copper, Nickel, Steel, Stainless Steel
Aluminium, Iron, Nickel, Non-metals, Steel
Brass, Copper, Nickel
Aluminium, Brass, Chromium, Copper, Silver, Steel
Aluminium, Brass, Chromium, Copper, Silver, Steel
Brass, Copper, Nickel, Tin
Brass, Copper, Nickel, Tin
Brass, Copper, Nickel, Steel
Steel
Aluminium, Brass, Copper, Nickel, Steel
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Alloys: Lead/Tin (40/60), Tin/Zinc (78/22) Tin/Copper diffusion layer.
Various Other Alloy Combinations are also possible
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Specifications
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Measurement range
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0 to 99.9 microns
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Accuracy
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+/- 7%
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Readability
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0.1 micron
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Area of Deplating
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Approx. 10mm2 Circular with 3.5mm Diameter gasket
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Electrolyte Required
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Approx. 2cc per measurement
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Power
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240/120V; 50/60 Hz AC, Single Phase, 12 VA
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Main Frame
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21W X 28D X 12H cm
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Weight
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3 Kg. without cell stand/pump unit
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Accessories
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Electrolyte
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Formulae for different Coating/Base combination provided with instrument.
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Acrylic Cell
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For thickness of coating on wires and small parts.
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Gasket
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3.5mm etching diameter.
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SIDET is a versatile and sophisticated instrument for the measurement of coatings of metals as well as alloys applied on a
substrate by electroplating or other methods. It fulfils a long standing need on the
Indian market for a low cost, reliable
and accurate coating thickness measuring instrument.
SIDET works on the Coloumetric principle. It has high accuracy and repeatability. It can measure thickness on thick and
flat surfaces. SIDET also measures coatings on known length of wires. An acrylic cell with stainless steel cup is used for
deplating the coatings on known length of wire. This is supplied as an accessory.
SIDET has a unique feature of Plate / Base combination (PBC) plug. Different PBC plugs are supplied for measurement of
different platings. There are no menus, settings, or complicated controls to carry out the measurements. Simple, true to
it's name, SIDET offers very easy operation. Use of pretested 2.5mm or 3.5mm dia gasket supplied with SIDET ensures
accurate results.
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Standard Coating / Base combinations
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Coating
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Base
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CADMIUM
CHROMIUM
COPPER
LEAD
NICKEL
SILVER / THIN SILVER
TIN
ZINC
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Aluminium, Brass, Copper, Nickel, Steel
Aluminium, Brass, Copper, Nickel, Steel, Stainless Steel
Aluminium, Iron, Nickel, Non-metals, Steel
Aluminium, Brass, Copper, Steel
Aluminium, Brass, Chromium, Copper, Steel
Brass, Copper, Nickel, Tin
Brass, Copper, Nickel, Tin
Aluminium, Brass, Copper, Nickel, Steel
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Specifications
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Measurement range
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0 to 999.9 microns
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Accuracy
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Better than 7.5%
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Readability
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0.1 micron
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Gasket Diameter
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1.5 mm or 2.5 mm
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Area of Deplating
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Approx. 5mm2 Circular with 2.5mm Diameter gasket
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Electrolyte Required
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Less than 2cc
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Power
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240V/120V AC, 50Hz
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Main Frame
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265 L x 230 W x 170 H (mm)
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Weight
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Approx. 5 Kg with Stand
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Graphic Step is an advanced version of our earlier
Smart Step. It works on Coulometric Principle. It measures
plating thickness of various metallic coatings on variety of
base materials. Step measurement of Duplex and Triplex Nickel is
also possible in this instrument. In Duplex Nickel on Steel /
Copper combination, it measures thickness of bright and
semi-bright nickel and measures electrochemical potential
between these two layers. In Triplex Nickel on Steel / Copper
combination, instrument measures the thickness of bright nickel,
active layer and semi-bright nickel and measures electrochemical
potential between two layers.
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Thickness Measurement
More than 20 plate/base combinations can be tested on Graphic Step.
Combinations are listed on next page. Instrument is very easy to
operate. It has a setup mode to select the plate—base combination. Using
UP/Down/Scroll keys, required plate-base combination can be selected.
After selection, instrument goes into measurement mode. Air agitation is
necessary to maintain proper electrochemical contact and to maintain
constant rate of de-plating. After setting up the sample, just press the
Start key. Measurement will start.
No further adjustment of any kind is necessary. Constant current passes
through the cell and etching takes place. Instrument stops automatically
whenever base material is reached. During measurement cycle, instrument
displays the thickness in microns as well as mils. Also displays the
cell voltage. Operator can selectively store the reading which can be
used for generating statistical information. Statistics like MIN, MAX,
AVG and Standard Deviation will be done automatically and displayed on
LCD screen.
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Step Measurement
Instrument goes into Step measurement mode whenever the user selects
Duplex / Triplex Nickel plate - base combination. In Step measurement,
setup the sample. Use reference electrode and SN-15 electrolytic
solution for measurement of electrochemical potential between two
layers. Press Start key to start measurement. Instrument shows graph of
electrochemical potential versus thickness on LCD screen. Typical graph
for Duplex Nickel is shown in the picture. Instrument passes constant
current through cell and etching starts. First the bright Nickel layer
gets removed. Then etching of the semi-bright nickel layer starts. Cell
voltage rises at this time. Rise in cell voltage can be observed on LCD
screen. After etching of semi-bright layer, base material is exposed to
the solution. At this point, cell voltage rises for copper or drops for
steel base material. Instrument detects this change and stops
automatically. Step change in voltage is calculated automatically. Also
the thickness of bright and semi-bright nickel layer is calculated and
displayed on screen. For Triplex nickel layer, instrument measures the
thickness of bright nickel, active layer and semi-bright nickel and
measures electrochemical potential between two layers. |
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Precautions
Silver/Silver Chloride Electrode and the Gasket are the key
components in step measurement. Periodic reconditioning of
electrode is necessary for accurate measurement. Instrument has
a facility to recondition the electrode. Care should taken while
handing the rubber gasket. SS cell should be cleaned after every
measurement. Conditioning of Silver/Silver Chloride Electrode,
cleaning of cell and gasket and proper setup of sample will lead
to successful step measurement.
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Software
Graphic Step
stores data in a non-volatile memory. Even after switching
off the instrument, the data array is preserved. Data can be
transferred to PC via USB port. Data retrieval software will
be supplied for data storage and transfer. All the
calculations for determination of step(s) or layer thickness
are done automatically at the end of the measurement.
Instrument determines the points (thresholds) at which
change in layer takes place. Due to non-uniform coating,
sometimes the instrument may show wrong results. In such
cases, transfer the data to PC and run the software. In the
software, user can change the thresholds by looking at the
graph displayed on screen. This helps to get the proper and
more accurate results. |
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Standard Coating / Base combinations
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Coating
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Base
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CADMIUM
CHROMIUM
COPPER
LEAD
NICKEL
ELECTROLESS NICKEL
SILVER / THIN SILVER
TIN
ZINC
BRASS
LEAD + ZINC ALLOY
TIN + ZINC ALLOY
DUPLEX NICKEL
TRIPLEX NICKEL
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Nickel, Steel
Nickel, Steel,
Brass, Copper
Aluminium, Steel, Nickel, Zinc, ABS
Aluminium, Copper
Copper, Steel
Copper, Steel
Brass, Copper, Steel
Brass, Copper, Nickel, Tin
Aluminium, Copper, Nickel, Steel
Steel
Steel
Steel
Steel, Copper
Steel, Copper
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Specifications
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Supply
Voltage
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110/230 Volts , 50/60 Hz AC
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Display
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320 x
240 pixel Graphics LCD
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Keypad
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8
Keys pad for solution setup, measurement and data transfer
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Gasket Diameter
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1.5 mm or 2.5 mm
or 3.5 mm
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Thickness Measurement
Accuracy |
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Better than +/- 7% |
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Duplex / Triplex Nickel
Accuracy |
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Step, +/- 10% Layer Thickness,
+/- 10% |
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Thickness Readability |
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0.1 Microns for thick coatings
0.01 microns for thin coatings |
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Step Readability |
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1 mV
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Area of Deplating |
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10 sq. mm
circular (3.5 mm dia Gasket) |
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Electrolyte |
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Approx. 2cc / measurement |
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Air Agitation
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Built-in, Bellow driven air pump |
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Stand Assembly |
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For setting up the sample & air agitation |
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Main Frame
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265 L x 230 W x 170 H (mm)
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Data Transfer to PC
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Through USB port
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Dimensions |
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29 L x 15 H x 20 D cm |
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Weight
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Approx. 1 Kg
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Note
: We can supply Graphic Step with only Thickness Measurement
mode. Step measurement mode will not be available.
Please consult factory
for details.
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Acrylic Cell for use with
GEDET, SIDET, Smart GEDET is most convenient to measure thickness on wires, small parts, etc.
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Thickness Standards for calibration: copper, nickel, tin on steel
or Copper base.
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Customized semi-automatic Stand is suitable for measurements on outer and inner surfaces of cylindrical parts such as shells.
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Manual version of the semi-automatic Stand described above is also
available.
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