Products

Dissolved Oxygen Meter – Model: CDO-01 The Dissolved Oxygen Meter (Model: CDO-01) is a precision laboratory instrument designed for accurate measurement of Dissolved Oxygen (DO), Oxygen Saturation (%), and Temperature in water samples. The instrument utilizes the membrane electrode method with a polarographic dissolved oxygen electrode to provide fast, reliable, and highly accurate measurements. It is widely used in aquaculture, water treatment plants, environmental monitoring, beverage production, sewage treatment, biological agriculture, research laboratories, educational institutions, and quality control laboratories. The CONTECH Dissolved Oxygen Meter features a polarographic DO electrode that offers a short polarization time, quick response, and precise measurement performance. The instrument automatically compensates for temperature, salinity, and atmospheric pressure using the built-in air pressure sensor, ensuring highly accurate results under varying environmental conditions. The CDO-01 is equipped with a large backlit LCD display, real-time clock, memory storage for up to 100 test results, and data logging for up to 500 measurements with selectable logging intervals. The bidirectional RS-232 interface enables easy communication with computers and printers, allowing continuous or single printouts of measurement data. It also generates GLP-compliant calibration reports, making it suitable for laboratory documentation and quality assurance applications. The instrument features easy-to-use electrode calibration, a replaceable diaphragm cap, automatic salinity compensation, automatic air pressure correction, and automatic temperature compensation for dependable performance. Designed for long-term reliability and ease of operation, the CDO-01 is an ideal solution for routine laboratory testing, environmental analysis, industrial process monitoring, and scientific research. Features • Measures Dissolved Oxygen (DO), Oxygen Saturation (%), and Temperature. • Membrane electrode method for accurate dissolved oxygen measurement. • Polarographic DO electrode with short polarization time and fast response. • Automatic temperature compensation. • Automatic salinity compensation. • Automatic air pressure correction using a built-in pressure sensor. • Easy electrode calibration with replaceable diaphragm cap. • Large backlit LCD display. • Bi-directional RS-232 interface for computer and printer connectivity. • Single and continuous printout of measurement results. • Multiple print formats for laboratory documentation. • Real-time clock. • GLP-compliant calibration reports. • Memory storage for up to 100 measurements. • Data logging facility for up to 500 results with selectable logging intervals. Specifications • Measurement Range: Dissolved Oxygen (DO): 0 to 40.00 mg/L (ppm) Oxygen Saturation: 0 to 200.0% Temperature: 0°C to 45°C • Accuracy: DO: ±1% FS Temperature: ±0.4°C • Temperature Compensation: Automatic (0°C to 45°C) • Salinity Compensation: Automatic (0 to 45 ppt) • Air Pressure Compensation: Automatic (80 to 105 kPa) • Display: Backlit LCD • Electrode: DO Electrode – EDO01 • Power Supply: 9V / 500 mA External Adaptor (Optional Battery Backup Unit BBEC-01) • Operating Temperature: 15°C to 45°C • Meter Dimensions: 165 (L) × 190 (D) × 60 (H) mm • Meter Weight: 700 g • Optional Accessories: Magnetic Stirrer MS-01, Battery Backup Unit BBEC-01, Calibration Standards

ORP Meter – Model: COR-01 The ORP Meter (Model: COR-01) is a precision laboratory instrument designed for accurate measurement of Oxidation Reduction Potential (ORP/Rel. mV) and Temperature in liquid samples. When used with the EORP-01 ORP Combination Electrode, the instrument is ideal for monitoring oxidation-reduction potential in common solutions, wastewater, water treatment plants, environmental laboratories, chemical industries, pharmaceutical laboratories, research institutes, educational institutions, and quality control laboratories. The CONTECH ORP Meter provides reliable and repeatable ORP measurements with automatic or manual temperature compensation for improved accuracy. The instrument features automatic buffer recognition, a large backlit LCD display, real-time clock, GLP-compliant calibration reports, memory storage for up to 100 measurements, and data logging for up to 500 results with selectable logging intervals. The bidirectional RS-232 communication interface enables easy connection to printers and computers for data recording and analysis. Multiple print formats allow users to print measurement data along with serial number, ORP value, date, time, and temperature. The instrument also supports temperature calibration using a solution of known temperature for enhanced measurement accuracy. The ORP Meter uses the ORP Combination Electrode (EORP-01) together with the ETS-01 Temperature Sensor for precise measurement. For pH measurement applications, an optional pH electrode can be connected after calibrating the instrument with standard pH buffer solutions. Designed for ease of operation, precision, and long-term reliability, the CONTECH ORP Meter is an ideal solution for laboratories, industrial process monitoring, environmental analysis, wastewater testing, and research applications. Features • Measures Oxidation Reduction Potential (ORP/Rel. mV) and Temperature. • Automatic or manual temperature compensation. • Automatic buffer recognition. • Large backlit LCD display. • Bi-directional RS-232 interface for computer and printer connectivity. • Single and continuous printout of ORP measurements. • Multiple print formats including ORP, date, time, serial number, and temperature. • Real-time clock. • GLP-compliant calibration reports. • Electrode slope display. • Memory storage for up to 100 measurements. • Data logging facility for up to 500 readings. • Temperature calibration using a known temperature reference. Specifications • ORP Range: ±2000 mV • Temperature Range: 0°C to 100°C • ORP Resolution: 1 mV • ORP Accuracy: ±1 mV • Temperature Compensation: Automatic or Manual • Input Resistance: Greater than 1 × 10¹² Ω • Display: Backlit LCD • ORP Electrode: ORP Combination Electrode (EORP-01) • Temperature Sensor: ETS-01 • Power Supply: 9V / 500 mA External Adaptor (Optional Battery Backup Unit BBEC-01) • Operating Temperature: 15°C to 45°C • Meter Dimensions: 165 (L) × 190 (D) × 60 (H) mm • Meter Weight: 700 g • Optional Accessories: Magnetic Stirrer MS-01, Battery Backup Unit BBEC-01, Calibration Standards Note: For pH measurements, an optional pH electrode should be used. The instrument must be recalibrated using standard pH buffer solutions before performing pH measurements.

Multiparameter Electrochemical Meters CONTECH offers a comprehensive range of Multiparameter Electrochemical Meters designed for accurate, reliable, and high-precision measurement of various electrochemical parameters in laboratories and industrial applications. The product range includes the pH / Conductivity Meter (CpHC), pH / Dissolved Oxygen Meter (CpHDO), and Conductivity / Dissolved Oxygen Meter (CCDO). These instruments are widely used in pharmaceutical industries, chemical laboratories, water treatment plants, food and beverage industries, environmental monitoring, biotechnology laboratories, educational institutions, research organizations, and quality control laboratories. The CpHC measures pH, mV, Conductivity, Resistivity, TDS, Salinity, and Temperature, making it a complete solution for routine laboratory water quality analysis. The CpHDO combines pH, mV, Dissolved Oxygen (DO), and Temperature measurements with automatic salinity and air pressure compensation for accurate dissolved oxygen analysis. The CCDO integrates Conductivity, Resistivity, TDS, Salinity, Dissolved Oxygen, and Temperature measurements in a single instrument for comprehensive water quality testing. All models feature automatic or manual temperature compensation, large backlit LCD displays, automatic calibration functions, real-time clock, GLP-compliant calibration reports, memory storage for up to 100 measurements, and data logging for up to 500 results. The bidirectional RS-232 interface allows easy communication with computers and printers, while multiple print formats simplify laboratory documentation and reporting. The pH meters support three-point calibration with automatic buffer recognition using multiple standard buffer solutions. The conductivity function offers one-point calibration across the entire measurement range, while the dissolved oxygen models feature a polarographic DO electrode with automatic salinity compensation, automatic air pressure correction, fast response, and precise measurement performance. These multiparameter instruments are compatible with CONTECH pH combination electrodes, conductivity electrodes, dissolved oxygen electrodes, and temperature sensors. Standard accessories include the Magnetic Stirrer MS-01, while optional accessories such as the Battery Backup Unit BBEC-01 and calibration standards further enhance instrument performance and laboratory efficiency. Designed for high accuracy, user-friendly operation, and long-term reliability, CONTECH Multiparameter Electrochemical Meters provide an ideal solution for laboratory testing, research, industrial process monitoring, environmental analysis, and quality assurance applications.

Electrochemical Electrodes CONTECH offers a comprehensive range of Electrochemical Electrodes designed for accurate and reliable measurement of pH, ORP (Oxidation Reduction Potential), Conductivity, Dissolved Oxygen (DO), Temperature, and various Ion Concentrations. These precision sensors are widely used in pharmaceutical industries, chemical laboratories, research institutes, educational institutions, food and beverage industries, water treatment plants, environmental monitoring, biotechnology laboratories, and quality control applications. Selecting the correct electrode is essential for achieving accurate and repeatable measurement results. Factors such as measurement accuracy, electrode body material, reference construction, junction type, and application environment should be considered while choosing an electrode. For optimum performance, electrodes should be calibrated regularly using standard calibration solutions and maintained according to the recommended operating procedures. The CONTECH range includes Plastic and Glass pH Combination Electrodes, pH Electrodes with Built-in Temperature Sensor, Conductivity Electrodes, Dissolved Oxygen (DO) Electrodes, ORP Electrodes, and Temperature Sensors. Each electrode is manufactured using high-quality materials to provide stable performance, long service life, and excellent measurement accuracy for laboratory and industrial applications. The Plastic pH Combination Electrode (EpHP01) is suitable for general laboratory applications and provides reliable pH measurement with a ceramic junction and durable plastic body. The EpHP02 features a built-in temperature sensor for simultaneous pH and temperature measurement with automatic temperature compensation. For applications requiring higher accuracy and measurements in low ionic strength or high-viscosity solutions, the Glass pH Combination Electrode (EpHG04) offers superior performance. The Conductivity Electrode (ECNG-01) is designed for high-precision conductivity measurement with excellent repeatability, while the Temperature Sensor (ETS-01) utilizes a platinum resistance (Pt-100) element for accurate temperature measurement. The Dissolved Oxygen Electrode (EDO-01) features a polarographic sensor with built-in temperature compensation for reliable dissolved oxygen analysis. The ORP Combination Electrode (EORP-01) provides accurate oxidation-reduction potential measurements for common solutions and wastewater applications. Designed for long-term reliability and precision, CONTECH Electrochemical Electrodes deliver consistent performance for laboratory testing, industrial process control, research, environmental monitoring, and quality assurance applications.

Electro Chemical Instruments & Accessories CONTECH offers a complete range of Electro Chemical Instruments Accessories designed to enhance the performance, accuracy, and convenience of laboratory testing and analytical applications. These accessories are widely used with pH meters, conductivity meters, TDS meters, dissolved oxygen meters, and other electrochemical instruments in pharmaceutical industries, chemical laboratories, educational institutions, food and beverage industries, water treatment plants, research organizations, and quality control laboratories. The product range includes Magnetic Stirrers, Electrode Holders, Stirr Beads, Mini Printers, Power Supplies, Battery Backup Units, and Calibration Solutions. Each accessory is manufactured using high-quality components to ensure reliable performance, long service life, and accurate laboratory measurements. The Magnetic Stirrer MS-01 provides smooth and uniform stirring of liquid samples with adjustable speed control, making it ideal for sample preparation and electrochemical measurements. The Electrode Holder EH-01 securely supports laboratory electrodes during testing, ensuring stable positioning and improved measurement accuracy. The Stirr Bead SB-01 is designed to provide efficient mixing of liquid samples during laboratory analysis. For data recording and documentation, Mini Printer CMP-01 (Thermal Printer) and Mini Printer CMP-02 (Dot Matrix Printer) provide reliable printing of measurement results through RS-232 communication. The SMPS-04 Power Supply delivers a stable DC output for compatible laboratory instruments, while the BBEC-01 Battery Backup Unit ensures uninterrupted operation during power failures. The range also includes Calibration Solutions for pH and conductivity measurements, allowing users to calibrate their instruments accurately and maintain reliable testing results. These standard solutions help ensure measurement accuracy and compliance with laboratory quality standards. Designed for routine laboratory use, research applications, industrial testing, and quality control, CONTECH Electro Chemical Instrument Accessories provide dependable performance, easy operation, and long-term reliability.

Magnetic Stirrer with Heating – Model: CMS-01H The Magnetic Stirrer with Heating (Model: CMS-01H) is a versatile laboratory instrument designed for simultaneous heating and stirring of liquid samples. It is widely used in pharmaceutical laboratories, chemical industries, research institutes, educational institutions, biotechnology laboratories, food and beverage industries, and quality control laboratories for sample preparation and laboratory mixing applications. The instrument provides precise heating and uniform stirring to ensure consistent sample preparation. It features a large backlit LCD display that shows both the set and actual temperature along with the stirring speed, allowing users to monitor all operating parameters easily. The CMS-01H supports temperature display in both Celsius (°C) and Fahrenheit (°F) for added convenience. The magnetic stirrer is equipped with an inbuilt temperature sensor for accurate temperature setting and measurement. An optional external temperature sensor can be connected for direct monitoring and control of the liquid temperature. For enhanced safety, the instrument includes an inbuilt temperature safety cut-off that helps protect samples and the equipment during operation. Designed with a durable stainless steel stirring plate, the CMS-01H offers reliable performance with a maximum stirring capacity of 3 litres of water and stirring speeds up to 1500 RPM. It also includes a print option with date, time, count, and weight, making it suitable for laboratory documentation and quality control applications. Features • Simultaneous heating and magnetic stirring. • Maximum heating temperature up to 280°C. • Suitable for stirring up to 3 litres of water. • Large backlit LCD displaying set and actual temperature and stirring speed. • Temperature display in both °C and °F. • Inbuilt temperature sensor for accurate temperature measurement. • Optional external temperature sensor for direct liquid temperature monitoring. • Inbuilt temperature safety cut-off for safe operation. • Print option with date, time, count, and weight. • Maximum stirring speed of 1500 RPM. • Stainless steel stirrer plate for durability and easy cleaning. Specifications • Maximum Temperature: 280°C (Actual liquid temperature is lower than the work plate temperature.) • Maximum Stirring Capacity: 3 Litres (Water) • Temperature Resolution: 1°C • Temperature Setting Increment: 1°C • Temperature Control Accuracy (Work Plate): ±5°C • Temperature Control Accuracy (External Temperature Probe): ±1°C • Maximum Stirring Speed: 1500 RPM • Speed Resolution: 1 RPM • Speed Setting Increment: 10 RPM • Stirrer Plate Material: Stainless Steel • Base Diameter: 135 mm • Dimensions: 165 (W) × 230 (L) × 110 (H) mm • Weight: Approximately 2 kg • Heater Power: 500 W

Magnetic Stirrer – Model: CMS-02 The Magnetic Stirrer (Model: CMS-02) is a high-performance laboratory instrument designed for efficient and uniform mixing of liquid samples without heating. It is widely used in pharmaceutical laboratories, chemical industries, research institutes, educational institutions, biotechnology laboratories, food and beverage industries, and quality control laboratories for sample preparation and routine laboratory applications. The CMS-02 features a microprocessor-controlled speed system that ensures precise and stable stirring performance throughout the operation. Its intelligent speed controller guarantees excellent speed accuracy even under varying load conditions. The instrument allows speed settings only when the stirring operation is stopped, preventing accidental changes during operation and ensuring consistent results. A large backlit LCD display shows both the set speed and the actual stirring speed, allowing users to monitor the operation with ease. The instrument supports a stirring capacity of up to 10 litres of water and offers an adjustable stirring speed range from 100 to 1500 RPM with excellent stability and precision. Built with a durable stainless steel stirring plate, the CMS-02 is designed for long-lasting laboratory use and easy cleaning. Its compact design, reliable performance, and user-friendly controls make it an ideal choice for research laboratories, quality control departments, educational institutions, and industrial laboratories. Features • High-performance magnetic stirring without heating. • Maximum stirring capacity of 10 litres of water. • Microprocessor-controlled speed regulation for accurate performance. • High speed accuracy under varying load conditions. • Speed settings can be changed only when stirring is stopped for improved safety. • Large backlit LCD displaying both set and actual stirring speed. • Adjustable stirring speed from 100 to 1500 RPM. • Stainless steel stirring plate for durability and corrosion resistance. • Compact, robust, and user-friendly design. • Ideal for laboratory sample preparation and research applications. Specifications • Maximum Stirring Capacity: 10 Litres (Water) • Stirring Speed Range: 100 to 1500 RPM (With Load) • Speed Resolution: 1 RPM • Speed Setting Increment: 10 RPM • Stirrer Plate Material: Stainless Steel • Stirrer Plate Diameter: 135 mm • Dimensions: 205 (W) × 335 (L) × 130 (H) mm • Weight: Approximately 4.5 kg • Power Supply: 100–250 V AC, 50/60 Hz • Power Consumption: 20 W

The Magnetic Stirrer with Heating (Model: CMS-01H) is a reliable laboratory instrument designed for simultaneous heating and stirring of liquids. It is widely used in chemical laboratories, pharmaceutical industries, research institutes, educational institutions, food and beverage industries, biotechnology laboratories, and quality control laboratories for efficient sample preparation and mixing applications. The instrument provides precise temperature control and adjustable stirring speed, ensuring uniform mixing and consistent heating of liquid samples. It features a durable stainless steel work plate, a large backlit LCD display, and an intuitive control system that displays both the set and actual temperature and stirring speed for easy monitoring. The CMS-01H includes an inbuilt temperature sensor for accurate temperature measurement and control, while an optional external temperature probe allows direct monitoring and control of the liquid temperature. Built-in safety features, including automatic temperature cut-off, help protect both the instrument and samples during operation. With a maximum stirring capacity of 3 litres and a maximum temperature of 280°C, it is suitable for a wide range of laboratory heating and mixing applications. The instrument also supports temperature display in both Celsius (°C) and Fahrenheit (°F), offers a print option with date, time, count, and weight, and provides high-speed stirring up to 1500 RPM for efficient sample preparation. Features • Simultaneous heating and magnetic stirring. • Maximum heating temperature up to 280°C. • Suitable for stirring up to 3 litres of water. • Large backlit LCD displaying set and actual temperature and stirring speed. • Temperature display in both °C and °F. • Inbuilt temperature sensor for accurate temperature control. • Optional external temperature probe for direct liquid temperature measurement. • Automatic temperature safety cut-off for safe operation. • Print option with date, time, count, and weight. • High-speed stirring up to 1500 RPM. • Stainless steel stirrer plate for durability and easy cleaning. Specifications • Maximum Temperature: 280°C (Actual liquid temperature is lower than the work plate temperature.) • Maximum Stirring Capacity: 3 Litres (Water) • Temperature Resolution: 1°C • Temperature Setting Increment: 1°C • Temperature Control Accuracy (Work Plate): ±5°C • Temperature Control Accuracy (External Temperature Probe): ±1°C • Maximum Stirring Speed: 1500 RPM • Speed Resolution: 1 RPM • Speed Setting Increment: 10 RPM • Stirrer Plate Material: Stainless Steel • Base Diameter: 135 mm • Dimensions: 165 (W) × 230 (L) × 110 (H) mm • Weight: Approximately 2 kg • Heater Power: 500 W • Power Supply: 220–240 V AC, 50/60 Hz • Power Consumption: 520 W

Digital Polarimeter – Model: CDP-001 The Digital Polarimeter (Model: CDP-001) is a fully automatic laboratory instrument designed to measure the optical rotation of optically active substances with high precision and accuracy. It is widely used for determining optical rotation, specific rotation, concentration, and the International Sugar Scale (°Z), making it an essential instrument for pharmaceutical industries, food and beverage manufacturers, sugar industries, cosmetic manufacturers, oil refineries, chemical laboratories, research institutes, and quality control laboratories. The CONTECH Digital Polarimeter operates on the Optical Null Principle, eliminating the need for manual adjustments and ensuring highly accurate, repeatable, and reliable measurement results. When polarized light passes through a sample, the analyzer detects the optical rotation produced by the sample. A highly sensitive photomultiplier detector converts this optical rotation into an electrical signal, which is processed through selective frequency circuits and a power amplifier. The servo motor automatically adjusts the analyzer until the optical zero position is restored. The analyzer's rotation is measured using an encoder and displayed digitally as the optical rotation of the sample. The Digital Polarimeter is capable of measuring dark-colored samples with up to 1% transmittance by automatically adjusting the detector's high-voltage supply according to the sample's darkness. The instrument also provides multiple readings with automatic calculation of average values and standard deviation, ensuring consistent and reliable analysis. It features a large backlit LCD display, RS-232 interface for computer connectivity, and supports both 100 mm and 200 mm sample tubes. Optional software is available for computer-based data management and analysis. Designed for precision, ease of use, and long-term reliability, the CDP-001 is an ideal solution for routine laboratory analysis, quality control, research, and industrial testing applications. Features • Fully automatic digital polarimeter based on the Optical Null Principle. • Measures optical rotation, specific rotation, concentration, and International Sugar Scale (°Z). • Automatic calculation of average value and standard deviation. • Suitable for measuring dark samples with up to 1% transmittance. • High-precision photomultiplier detector. • Large backlit LCD display. • RS-232 interface for computer connectivity. • Compatible with 100 mm and 200 mm sample tubes. • Optional software for computer interface and data management. • Fast, accurate, and reliable measurement results. Specifications • Light Source: Infrared LED • Wavelength: 589.44 nm • Modulator: Faraday Magneto Optical Modulator • Measuring Range: Optical Rotation: -45° to +45° International Sugar Scale: -120° to +120° Z • Accuracy: Optical Rotation: ± (0.001° + Measuring Value × 0.05%) International Sugar Scale: ± (0.03° Z + Measuring Value × 0.05% Z) • Minimum Sample Transmittance: 1% • Power Supply: 230 V ±10% AC, 50/60 Hz • Dimensions: 600 × 320 × 240 mm • Weight: 30 kg

Digital Abbe Refractometer – Model: CAR-02 The Digital Abbe Refractometer (Model: CAR-02) is a precision laboratory instrument designed to measure the refractive index (nD) of transparent and translucent liquids as well as solid substances. It is also used to determine the percentage of dissolved solids (Brix) in sugar solutions, making it an ideal instrument for laboratories, pharmaceutical industries, food and beverage processing, sugar industries, chemical laboratories, research institutes, and quality control applications. The instrument provides fast, accurate, and reliable measurements with automatic temperature compensation for Brix values, ensuring consistent results across different operating conditions. Equipped with a high-quality hard glass prism and a large backlit LCD display, the CAR-02 offers excellent optical performance and easy operation. The built-in RS-232 interface allows seamless computer connectivity, while optional software enables data transfer and analysis for laboratory documentation. Designed for precision and durability, the Digital Abbe Refractometer is suitable for routine laboratory testing, research, production quality control, and educational applications where accurate refractive index and Brix measurements are essential. Features • Measures the refractive index (nD) of transparent and translucent liquids and solid substances. • Measures the percentage of dissolved solids (Brix) in sugar solutions. • Automatic temperature compensation for accurate Brix measurements. • High-quality hard glass prism for precise optical measurements. • Large backlit LCD display for easy reading. • RS-232 interface for computer connectivity. • Optional software for computer interface and data management. • Fast, accurate, and reliable measurement results. • Suitable for laboratory, industrial, and research applications. Specifications • Measuring Range: Refractive Index (nD): 1.3000 to 1.7000 Brix: 0 to 95% Temperature Compensated Brix (Brix-TC): 0 to 95% • Accuracy: Refractive Index (nD): ±0.0002 Brix: ±0.1% • Temperature Display Range: 0°C to 50°C • Temperature Compensation Range for Brix: 15°C to 45°C • Power Supply: 220 V ±10%, 50 Hz • Dimensions: 330 × 180 × 380 mm • Weight: 10 kg

Digital Melting Point Apparatus – Model: CDMP-300 The Digital Melting Point Apparatus (Model: CDMP-300) is a precision laboratory instrument designed to accurately determine the melting point of solid substances. It measures the temperature at which a material changes from a solid state to a liquid state, making it an essential instrument for determining the purity and quality of chemical compounds. The apparatus is widely used in pharmaceutical laboratories, chemical industries, research institutes, educational institutions, perfume manufacturing, dye industries, and quality control laboratories. The melting point of a substance is an important indicator of its purity. Pure substances have a well-defined melting point, while impurities generally cause variations in the melting temperature. The CDMP-300 provides accurate, reliable, and repeatable results, making it an ideal solution for quality assurance and research applications. The instrument features photoelectric detection technology, a large backlit LCD display, and a platinum resistance temperature sensor for precise temperature measurement. It supports simultaneous measurement of up to three samples (optional), displays both the initial and final melting points, and automatically calculates the average melting point value. The instrument also includes an RS-232 interface for computer connectivity, with optional software available for data transfer and analysis. Features • Accurate digital melting point measurement. • Photoelectric detection for reliable results. • Large backlit LCD display for easy reading. • RS-232 interface for computer connectivity. • Simultaneous measurement of up to three samples (optional). • Displays initial and final melting points. • Automatic calculation of average melting point. • Platinum resistance sensor for high-precision temperature measurement. • Compatible with standard pharmacopoeia capillary sample tubes. • Optional computer software for data management. Specifications • Measuring Range: Ambient to 300°C • Resolution: 0.1°C • Heating Rate: 0.2, 0.5, 1, 1.5, 2, 3, 4, and 5°C per minute • Accuracy: ±0.5°C up to 200°C ±0.8°C from 200°C to 300°C • Heating Time (50°C to 300°C): 3 minutes • Cooling Time (300°C to 50°C): 5 minutes • Capillary Sample Tube Size: Outer Diameter: 1.4 mm Inner Diameter: 1.0 mm • Power Supply: 220 V ±10%, 50 Hz, 100 Watt • Dimensions: 400 × 280 × 210 mm • Weight: 12.5 kg

X-Ray Fluorescence Spectrometer – Gas Proportional XRF Detector CGX-101 The X-Ray Fluorescence Spectrometer – Gas Proportional XRF Detector CGX-101 is a high-performance instrument designed for fast, accurate, and non-destructive analysis of precious metals. It is widely used in jewellery manufacturing, hallmarking centres, assay laboratories, precious metal refineries, and quality control applications. Utilizing advanced Energy Dispersive X-Ray Fluorescence (EDXRF) technology, the instrument provides reliable elemental analysis and gold purity testing without damaging the sample. 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), and Tin (Sn) in the jewellery industry. The Energy Dispersive X-Ray Fluorescence (EDXRF) technique relies on the detector and the detection circuit capability to resolve spectral peaks generated by different energy X-rays emitted when a primary X-ray beam strikes a metal alloy. The intensity of the emitted spectrum is proportional to the concentration of each element present in the sample. The spectrum is then processed using powerful computer software, which accurately calculates and reports the elemental composition of the sample. The XRF Gold Purity Tester consists of an X-ray tube, high-voltage power supply for the X-ray source, X-ray tube filters, X-ray fluorescence detector, processing electronics, system interface, and an external computer. A camera is incorporated into the system to allow users to view the sample directly on the computer screen for accurate positioning and testing. 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), and Gold (Au). • Measurement Results: Copper (Cu) combined with Fe, Co, Ni, and Zn; Silver (Ag) combined with Ru, Rh, Pd, Cd, In, and Sn; Gold (Au) combined with Os, Ir, and Pt. • Accuracy of Measurement: ±0.3% (Molten Metal above 90% Au) ±0.5% (Molten Metal below 90% Au) ±1.0% (Molten Metal below 50% Au) • Sensor: Gas Proportional Counter • Cooling for Detector: Air • Detection Range: 1% to 99.99% • Testing Time: 30 to 200 seconds • Test Spot Area: 0.3 mm • Power Supply: 200–240 V AC, 50/60 Hz • Power Rating: 130 Watt • Working Temperature: 15–25°C • Relative Humidity: Less than 70% • Operating Atmosphere: Vibration-free surface and air-conditioned room • Interface for Computer: Inbuilt (External Monitor and Keyboard required) • Software for Operation: Menu-driven user-friendly operating system • Instrument Dimensions: Length: 450 mm Width: 350 mm Height: 345 mm (Closed Position) Height: 565 mm (Open Position) • Sample Chamber Dimensions: Length: 300 mm Width: 255 mm Height: 80 mm • Net Weight: 30 kg XRF is a reference analytical technique; therefore, standards are required for quantitative analysis. Standard samples are analyzed to generate spectral intensity versus concentration calibration curves. These calibration curves are then used to evaluate the elemental composition of unknown samples with high accuracy. How to Get the Best Results from the XRF Spectrometer • Proper standardization and calibration of the equipment are essential for accurate results. • For intricate jewellery designs, testing at multiple points is recommended to obtain the most representative composition. • Ensure adequate warm-up time, a stable working surface, proper grounding, and an air-conditioned environment for optimum performance. • For powder samples, proper grinding minimizes scattering effects. • For solid samples, surface polishing helps reduce scattering and improves measurement accuracy. • Flat sample surfaces provide the most accurate testing results. • Due to differences in melting points, atomic structures, and manufacturing techniques, not all elements can be uniformly melted with noble metals.