India’s Largest Manufacturer and Exporter of Magnet based high precision electronic balances.

 
 

Contech Instruments Ltd.
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Company was awarded
ISO 9001 : 2008,
ISO 14001:2004,
OHSAS 18001:2007
From
UKAS
Management Systems in
the year 2014.  
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Contech Instruments Ltd.

is a leading manufacturer and exporter of high precision Electronic Balance that has for the past few years provided the industry with quality products like electronic balances, weighing machines
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  GOLD PURITY CHECKING INSTRUMENTS
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  X-RAY FLUORESCENCE SPECTROMETERS
  GAS PROPORTIONAL XRF DETECTOR CGX-101
  Manufacturer Supplier and Exporters

XRF is used to detect and analyze noble metals like Gold ( Au), Silver (Ag), Platinum (Pt),Iridium (Ir), Osmium (Os), Palladium (Pd), Rhodium (Rh), Ruthenium (Ru), Copper (Cu), Zinc (Zn), Nickel (Ni), Cadmium (Cd), Iron (Fe), Cobalt (Co), Indium (In), Tin (Sn), in the Jewellery Industry.

Energy Dispersive X-ray Fluorescence (EDXRF) technique relies on the detector and the detection circuit capability to resolve spectral peaks due to different energy X-Rays emitted when a primary X-Ray beam strikes a metal alloy corresponding to different elements in the sample, intensity of the spectrum radiation proportional to the concentration of element. The spectrum is then processed through the powerful computer software which calculates and reports the various elements & their composition in the sample.

XRF Gold Purity Tester consists of X-Ray tube, high voltage power supply for X-Ray source, X-Ray tube filters, X-Ray fluorescence Detector, processing electronics and system interface & an external computer. A camera is incorporated in the system to view the sample on the computer screen.

Specifications
Detectable elements : Iron (Fe), Cobalt (Co), Nickel (Ni), Copper (Cu), Zinc (Zn),
Ruthenium (Ru), Rhodium (Rh), Palladium (Pd), :
Silver (Ag), Cadmium( Cd), Indium (In), Tin (Sn),
Osmium (Os), Iridium (Ir), Platinum (Pt), Gold (Au)
Measurement Results : Cu (Combined with Fe, Co, Ni, Zn)
Ag (Combined with Ru, Rh, Pd, Cd, In, Sn) :
Au (Combined with Os, Ir, Pt) :
Accuracy of measurement : +0.3% (Molten Metal above 90% Au)
+0.5% (Molten Metal below 90% Au) :
+1% (Molten Metal below 50% Au)
Sensor :   Gas Proportional Counter
Cooling for Detector : Air
Detection Range : 1%-----99.99%
Testing Time : 30-----200 secs
Test Spot Area : 0.3mm
Power Supply : 200-240V AC, 50/60Hz
Power Rating : 130 Watt
Working Temperature : 15-25oC
Relative humidity : <70%
Operation atmosphere : Vibration free surface and air conditioned room
Interface for Computer : Inbuilt (External Monitor, Keyboard required)
Software for Operation : Menu Driven User Friendly Operating System
Dimensions of Instrument : Length : 450mm  Width : 350mm
Height : 345mm (with test compartment cover in : closed  
                           position) & 565mm (in open position)
Dimensions of Sample Chamber : Length : 300mm   Width : 255mm    Height : 80mm
Net Weight : 30kg

 

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XRF is a reference technique, hence standards are required for quantitative results. Standards are analyzed, spectral intensities generated are used to obtain a intensity v/s concentration plot for calibration. This calibration is used to evaluate the spectral intensities of unknown samples.

How to get best results from XRF Spectrometer :
XRF is a reference method, proper standardization of the equipment is required for accurate results.
In order to get most appropriate results, testing at different points is necessary especially when the jewellery design is intricate.
Adequate warm up period, sturdy working surface, stable power supply, proper grounding and conditioned atmosphere is required to achieve the best product performance.
For powder sample, proper grinding of sample minimizes scattering effect.
For solid sample, surface polishing minimizes the scattering effect.
Flat surface of the sample yields the best results.
Due to different melting points, atomic structure and crafting techniques, not all the elements can be melted with noble metals.

Highslide JS
 

Click On Image For ZOOM

 

  X-RAY FLUORESCENCE SPECTROMETERS
  SILICON - PIN XRF DETECTOR CGX-102
  Manufacturer Supplier and Exporters

XRF is used to detect and analyze noble metals like Gold ( Au), Silver (Ag), Platinum (Pt), Iridium (Ir), Osmium (Os), Palladium (Pd), Rhodium (Rh), Ruthenium (Ru),
Copper (Cu), Zinc (Zn), Nickel (Ni), Cadmium (Cd), Iron (Fe), Cobalt (Co), Indium (In), Tin (Sn), in the Jewellery Industry.

Energy Dispersive X-ray Fluorescence (EDXRF) technique relies on the detector and the detection circuit capability to resolve spectral peaks due to different energy X-Rays emitted when a primary X-Ray beam strikes a metal alloy corresponding to different elements in the sample, intensity of the spectrum radiation
proportional to the concentration of element. The spectrum is then processed through the powerful computer software which calculates and reports the various elements & their composition in the sample.

XRF Gold Purity Tester consists of X-Ray tube, high voltage power supply for X-Ray source, X-Ray tube filters, X-Ray fluorescence Detector, processing electronics and system interface & an external computer. A camera is incorporated in the system to view the sample on the computer screen.

Specifications
Detectable elements : Titanium to Uranium
Measurement Results : Iron (Fe), Cobalt (Co), Nickel (Ni), Copper (Cu), Zinc (Zn),
Ruthenium (Ru), Rhodium (Rh), Palladium (Pd),
Silver (Ag), Cadmium( Cd), Indium (In), Tin (Sn),
Osmium (Os), Iridium (Ir), Platinum (Pt), Gold (Au)
-all metals separately.
Accuracy of measurement : +0.15% (Molten Metal above 90% Au)
+0.3% (Molten Metal below 90% Au)
+0.5% (Molten Metal below 50% Au)
Sensor :   Silicon-Pin Diode (Silicon Drift Semiconductor or CGX-103)
Cooling for Detector : Thermoelectric
Detection Range : 1%-----99.99%
Testing Time : 30-----200 secs
Test Spot Area : 0.5mm
Power Supply : 90-240 V AC, 50/60HZ
Power Rating : 30 Watt
Working Temperature : 15-25oC
Relative humidity : <70%
Operation atmosphere : Vibration free surface and air conditioned room
Interface for Computer : Inbuilt (External Monitor, Keyboard required)
Software for Operation : Menu Driven User Friendly Operating System
Dimensions of Instrument : Length : 335mm   Width : 225mm
Height : 210mm (with test compartment cover in : closed  
                           position) & 565mm (in open position)
Dimensions of Sample Chamber : Length : 253mm   Width : 195mm    Height : 80mm
Net Weight : 12kg

 

DOWNLOAD CATALOGUE

 

DOWNLOAD MANUAL

XRF is a reference technique, hence standards are required for quantitative results. Standards are analyzed, spectral intensities generated are used to obtain a intensity v/s concentration plot for calibration. This calibration is used to evaluate the spectral intensities of unknown samples.

How to get best results from XRF Spectrometer :
XRF is a reference method, proper standardization of the equipment is required for accurate results.
In order to get most appropriate results, testing at different points is necessary especially when the jewellery design is intricate.
Adequate warm up period, sturdy working surface, stable power supply, proper grounding and conditioned atmosphere is required to achieve the best product performance.
For powder sample, proper grinding of sample minimizes scattering effect.
For solid sample, surface polishing minimizes the scattering effect.
Flat surface of the sample yields the best results.
Due to different melting points, atomic structure and crafting techniques, not all the elements can be melted with noble metals.

 
Highslide JS

 

Click On Image For ZOOM

 

  SILICON DRIFT DETECTORS CGX-103

SDD in place of Si-Pin Detector for enhanced performance & Detection (Spectral Resolution)
Specifications
Detectable elements : Titanium to Uranium
Measurement Results : Iron (Fe), Cobalt (Co), Nickel (Ni), Copper (Cu), Zinc (Zn),
Ruthenium (Ru), Rhodium (Rh), Palladium (Pd),
Silver (Ag), Cadmium( Cd), Indium (In), Tin (Sn),
Osmium (Os), Iridium (Ir), Platinum (Pt), Gold (Au)
-all metals separately.
Accuracy of measurement : The Accuracy of measurement is better than
Silicon-pin Detector
Sensor :   Silicon Drift Detector is used in the place of Silicon-Pincode
Detector foe Enhanced performance& spectral resolutions.
Cooling for Detector : Thermoelectric
Detection Range : 1%-----99.99%
Testing Time : 30-----200 secs
Test Spot Area : 0.5mm
Power Supply : 90-240 V AC, 50/60HZ
Power Rating : 30 Watt
Working Temperature : 15-25oC
Relative humidity : <70%
Operation atmosphere : Vibration free surface and air conditioned room
Interface for Computer : Inbuilt (External computer required)
Software for Operation : Menu Driven User Friendly Operating System
Dimensions of Instrument : Length : 335mm   Width : 225mm
Height : 210mm (with test compartment cover in : closed  
                           position) & 330mm (in open position)
Dimensions of Sample Chamber : Length : 253mm   Width : 195mm    Height : 80mm
Net Weight : 12kg

DOWNLOAD CATALOGUE

 

DOWNLOAD MANUAL


Highslide JS

 

Click On Image For ZOOM

 

  X-RAY FLUORESCENCE SPECTROMETER
  HANDHELD DETECTORS (Si-PIN / SDD) CGX-104

XRF is used to detect and analyze noble metals like Gold ( Au), Silver (Ag), Platinum (Pt),Iridium (Ir), Osmium (Os), Palladium (Pd), Rhodium (Rh), Ruthenium (Ru), Copper (Cu), Zinc (Zn), Nickel (Ni), Cadmium (Cd), Iron (Fe), Cobalt (Co), Indium (In), Tin (Sn), in the Jewellery Industry.

Energy Dispersive X-ray Fluorescence (EDXRF) technique relies on the detector and the detection circuit capability to resolve spectral peaks due to different energy X-Rays emitted when a primary X-Ray beam strikes a metal alloy corresponding to different elements in the sample, intensity of the spectrum radiation proportional to the concentration of element. The spectrum is then processed through the powerful computer software which calculates and reports the various elements & their composition in the sample.

XRF Gold Purity Tester consists of X-Ray tube, high voltage power supply for X-Ray source,X-Ray tube filters, X-Ray fluorescence Detector, processing electronics and system interface& an external computer. A camera is incorporated in the system to view the sample on the computer screen.
Specifications
 X-ray tube  Tungsten anode, 40 kV , 100 A with 5 filter positions
 Detector type  solid state Si-pin-diode with thermo-electrical cooling (optional SDD)
 Active area  6 mm2
 Energy resolution  <165 eV at 5.9 keV (<140 eV for SDD)
 Display  High resolution 4 inch color touch-screen
 Supported operating
 systems
 Windows CE/Mobile for PDA
 Windows XP/Vista/7 for PC

Battery Operation Time : Up to 8 hours
Dimensions : 242 mm (L) x 78 mm (W) x 230 mm (H)
Weight (with battery) : 1230 g (1440 g)

XRF is a reference technique, hence standards are required for quantitative results. Standards are analyzed, spectral intensities generated are used to obtain a intensity v/s concentration plot for calibration. This calibration is used to evaluate the spectral intensities of unknown samples.
 

How to get best results from XRF Spectrometer :
XRF is a reference method, proper standardization of the equipment is required for accurate results.
In order to get most appropriate results, testing at different points is necessary especially when the jewellery design is intricate.
Adequate warm up period, sturdy working surface, stable power supply, proper grounding and conditioned atmosphere is required to achieve the best product performance.
For powder sample, proper grinding of sample minimizes scattering effect.
For solid sample, surface polishing minimizes the scattering effect.
Flat surface of the sample yields the best results.
Due to different melting points, atomic structure and crafting techniques, not all the elements can be melted with noble metals.

DOWNLOAD CATALOGUE

 

DOWNLOAD MANUAL


 
Highslide JS
 

Click On Image For ZOOM

 

  GOLD PURITY CHECKING BALANCE Manufacturer Supplier and   Exporters

Measurement based on Archimedes’ principle incorporating High
Precision electronic weighing scale.
Accurate, Reliable and non destructive testing method.
Provision to enter water temperature for temperature compensation of
density value.
Over load and shock load protection for weighing scale.
Display of gold purity in % as well as karat.
Gold purity checking in gold-copper-silver, gold-silver, gold-copper alloys.
Can be used to check other precious metals like platinum, palladium etc.
by using mixture proportion function.
RS-232 interface for printer / computer connection.
Spacious tank for big ornaments, special design of tank to reduce buoyancy error.
Hollow ornaments, ornaments inlaid with stones cannot be checked.

 

DOWNLOAD CATALOGUE

 

DOWNLOAD MANUAL

Specifications:
 
  Models   CTL-300   CTL-600
  Capacity   300g   600g
  Accuracy   0.01g   0.01g
  Density  Accuracy   0.01 g/cc   0.01 g/cc
 
 
 
 
 

Our Product Range :

 


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