Back to top
Send SMS    Call Me Free Send Inquiry
Karat Meter

Karat Meter

Product Details:


Product Description

Quantum the well-known organization consist group of professionals, each having several years of experience in the field of analytical, scientific, process, test & measuring instrumentation. The company with its experience for more than 2 decades in X-ray technology introduces always innovation in precious measurements with latest hardware, intuitive software and simplicity in operation at affordable cost.

Karatmeter G-series is bench-top fast, precise & non-destructive unit for accurate elemental analysis. Fixed sample position precisely & swiftly determines the percentage by weight (or Karat) in a solid piece of jewellery, precious coins or any other piece of noble metal making use of X-ray assay technique. It successfully determines the elemental composition of Gold alloys, Platinum group metals & Silver alloys. The analysis of bulk material & layer thickness is non-contact and non-destructive without any requirement for sample preparation. With additional calibration module, it can be even use for special coating thickness applications and plating chemical analysis.

Who Benefits

Karatmeter G-series metal spectrometer is ideal for labs and production lines, particularly where users have:

  • Limited bench space
  • Budget limitations
  • A preference for bottom-up operation with optional motorized z-focusing
  • The need to position smaller samples quickly and easily for fast output 

Key Features

The two most distinctive features of the G-series are precision video imaging, and bottom-up measurement using a fixed plate or optional motorized z-axis with laser-based auto-focus. An optional  manual X-Y stage with 1.5X1.5 travel facilitates easy positioning of small and large parts. These features are unique as compared with other suppliers.  


The standard configuration includes a dual collimator, a camera with a fixed focal distance, solid-state silicon PIN detector, and a long-life X-ray fluorescence tube. As with all existing or new models, components can be upgraded to include multiple collimators, a variable focal depth camera or high resolution SDD/FSDD detector. 

Principle :  Energy dispersive (ED-XRF) X-ray fluorescence spectrometer to measure precious metals and alloys.

Design : Universal robust bottom-up geometry to measure samples with fast output. The front large door opening allows easy sample handling for positioning andmeasurement. The sample is visible through protective door window during measurement.

Electrical Conditions:  Operates on standard external AC adaptor works with mains power supply between 110-240VAC, 50/60Hz, 100W.

External Conditions : 

  •  Operating 0-40 degree C
  • Storage/transportation 0 - 50 degree C
  • Relative Humidity < 95%

Sample Handling : Fixed sample plate, optional motorized z-axiswith laser based auto-focus and optional manual x-y position stage.

Sample Image :High resolution CCD color video microscope for optical image of sample position with cross-hair and spot size on calibrated scale. Adjustable illumination and magnification upto 40x.

Interface :  Standard single USB interface with external laptop/desktop WIN based computer.

Software :  XralizeR special software package pre-calibrated for major precious metals and alloys with help driven menu and customized report generation formats.

Approvals : CE design approval, AERB approval for radiation safety, IP40 dust & moisture protection, DIN ISO 3497 & 23345 and ASTM B 568 approvals for standard XRF measuring techniques.



Karatmeter G1

Karatmeter G2

Excitation Source

W-target, micro-focus, Be-window tube

W-target, micro-focus, Be-window tube

High Voltage

50kV/1mA programmable

50kV/1mA programmable

Primary Filter

Fixed Al filter for precious alloys

Fixed Al filter for precious alloys, Optional 5-slectable filters for specific applications


Dual 0.5mm & 1.5mm

Dual 0.5mm & 1.5mm Optional 4-position collimator changer

Detector Type

Silicon PIN diode detector, peltier cooled

Silicon drift SDD detector, peltier cooled optional FSDD detector



<160eV Optional Fast SDD package < 145eV

Sample Handling

Fixed sample position Optional motorized z-axis with laser auto-focus

Optional manual X-Y stage

Fixed sample position Optional motorized z-axis with laser auto-focus

Optional manual X-Y stage

Element Range

Ti (22) to U (92)

Al (13) to U (92)

Precision @60sec

< 1%

< 0.5%

Application Area

Corporate & chain jewellery showrooms, Assay offices, Gold exchange and common coating thickness applications

Gold refineries, Assay offices, Hallmarking centres, Bullion traders & merchants, major coating thickness and plating solution analysis





approx. 26kgs

approx. 24kgs

Enter Buying Requirement Details
Email Id
Mobile number

Other Products in 'Karat Meter SL' category