analytical balance

Analytical Balances (CAS & CAI Series) (0.0001 g to 300 g) The CONTECH Analytical Balances (CAS & CAI Series) are ultra-high precision laboratory weighing instruments designed for accurate and reliable analytical measurements in pharmaceutical, chemical, biotechnology, research, educational, food testing, environmental, and quality control laboratories. As a leading manufacturer, supplier, and exporter of analytical balances, CONTECH combines advanced Electro Magnetic Force Compensation (EMFC) technology with intelligent electronics and precision software to deliver exceptional weighing accuracy, repeatability, and long-term stability. The balances incorporate a high-performance Analog-to-Digital Converter (ADC) with inbuilt temperature compensation, providing outstanding weighing stability with up to 6 million internal counts. Every instrument is factory calibrated with programmable adjustment parameters to compensate for minor assembly variations, ensuring highly accurate and consistent weighing performance. The CAS & CAI Series features a large white backlit LCD display for clear visibility of weighing results. The enclosed weighing chamber with sliding glass doors minimizes the effects of air currents, making the balances ideal for ultra-sensitive measurements. The CAI Series additionally includes motorized internal calibration, allowing automatic calibration without the need for external standard weights. A bi-directional RS-232 communication interface enables seamless connectivity with computers, printers, and laboratory information systems. An optional RS-232 to USB converter allows compatibility with modern computer systems. The balances support multiple international weighing units including grams, ounces, troy ounces, carats, mommes, pennyweights, grains, tola, mesghal, and Chinese taels. Advanced weighing functions include percentage weighing, piece counting, programmable fill mode, accumulation memory for up to 200 samples, multiple printing modes, external calibration (CAS Series), automatic zero tracking, adjustable response speed, and GSM (Grams per Square Meter) measurement for paper and textile testing. Optional features such as 5-inch Touch Screen Graphic Display, 21 CFR Part 11 compliance, GLP compliance with Real-Time Clock (RTC), density determination kit, weigh-below hook, yarn count measurement, denier measurement, anti-vibration table, and standard calibration weights make the CAS & CAI Series ideal for regulated laboratories and advanced industrial applications. Designed for superior precision, compliance, and operational efficiency, the CONTECH Analytical Balances provide dependable weighing performance for analytical chemistry, pharmaceutical testing, research laboratories, universities, biotechnology, food testing, and quality assurance laboratories. Features Advanced Electro Magnetic Force Compensation (EMFC) technology. High-performance ADC with inbuilt temperature compensation. Up to 6 million internal counts for exceptional weighing stability. Large white backlit LCD display. Enclosed weighing chamber with sliding glass doors. Bi-directional RS-232 communication interface. Optional RS-232 to USB converter. GSM (Grams per Square Meter) measurement function. Multiple weighing units including Gram, Ounce, Troy Ounce, Carat, Momme, Pennyweight, Grain, Tola, Mesghal, and Chinese Tael. Percentage weighing. Piece counting with automatic count correction. Fill mode with programmable set points. Accumulation memory for up to 200 samples. Multiple printing modes. External calibration (CAS Series). Motorized internal calibration (CAI Series). User-selectable response speed (Slow, Normal, Fast). Adjustable stability indication. Automatic zero tracking. User-selectable display update speed. Specifications Analytical Balances (Without Motorized Internal Calibration) Model Capacity Readability Repeatability (±) Linearity (±) Pan Size CAS-54 50 g 0.0001 g 0.1 mg 0.2 mg 100 mm CAS-84 80 g 0.0001 g 0.1 mg 0.2 mg 100 mm CAS-164 160 g 0.0001 g 0.2 mg 0.4 mg 100 mm CAS-234 230 g 0.0001 g 0.2 mg 0.4 mg 100 mm CAS-304 300 g 0.0001 g 0.2 mg 0.4 mg 100 mm Analytical Balances (With Motorized Internal Calibration) Model Capacity Readability Repeatability (±) Linearity (±) Pan Size CAI-54 50 g 0.0001 g 0.1 mg 0.2 mg 100 mm CAI-84 80 g 0.0001 g 0.1 mg 0.2 mg 100 mm CAI-164 160 g 0.0001 g 0.2 mg 0.4 mg 100 mm CAI-234 230 g 0.0001 g 0.2 mg 0.4 mg 100 mm CAI-304 300 g 0.0001 g 0.2 mg 0.4 mg 100 mm General Specifications Tare Range: Up to Full Capacity Response Time: 2–3 Seconds Power Supply: 90–250 V AC, 50/60 Hz Power Consumption: 10 Watts Operating Temperature: 10°C to 45°C Dimensions: 470 (L) × 230 (W) × 285 (H) mm Optional Features 5-inch Touch Screen Graphic Display 21 CFR Part 11 Compliance (with TFT Display) Motorized Internal Calibration (CAI Series) RS-232 to USB Interface Converter GLP Compliance with Real-Time Clock (RTC) Density Determination Kit Weigh-Below Hook for Density Measurement

Breeze Shield The CONTECH Breeze Shield is a high-quality balance accessory designed to protect the weighing area from air currents and external disturbances, ensuring accurate and stable weighing results. It is specially designed for use with EMFC analytical and precision balances, where even slight air movement can affect measurement accuracy. The Breeze Shield is supplied as a standard accessory with CONTECH EMFC balances offering an accuracy of 1 mg or better. For balances with an accuracy below 1 mg, the Breeze Shield is available as an optional accessory based on the model and application requirements. Manufactured using high-quality transparent glass, the Breeze Shield minimizes the effect of surrounding air currents while maintaining clear visibility of the weighing chamber. This helps improve measurement repeatability, reduces weighing errors, and enhances the overall performance of precision laboratory balances. CONTECH offers different types of Breeze Shields to suit various balance models and laboratory applications, ensuring optimum protection and ease of operation. The Breeze Shield is an ideal accessory for pharmaceutical laboratories, research institutes, chemical laboratories, educational institutions, quality control departments, and industrial laboratories where high-precision weighing is essential. Features • Protects the weighing area from air currents and external disturbances. • Improves weighing accuracy and measurement stability. • Standard accessory for EMFC balances with 1 mg or better readability. • Optional accessory for balances with lower accuracy. • Manufactured from high-quality transparent glass. • Enhances repeatability of weighing results. • Provides clear visibility of the weighing chamber. • Available in different designs to suit various balance models. • Easy to install and maintain. • Ideal for analytical and precision laboratory balances.

Motorized Calibration The CONTECH Motorized Calibration System is an advanced balance accessory designed to provide fully automatic internal calibration for precision laboratory balances. The system uses a smooth and noiseless motor-driven standard weight housed inside the balance, eliminating the need for manual calibration and external standard weights. This ensures fast, accurate, and consistent calibration while reducing maintenance and operator intervention. The internal calibration weight is manufactured from high-precision stainless steel and is accurately machined to maintain reliable calibration performance. Any minor tolerance in the calibration weight is automatically compensated through intelligent software, ensuring highly accurate weighing results throughout the life of the instrument. The Motorized Calibration system can be programmed to perform automatic calibration under various conditions, including every time the balance is switched on, whenever there is a change in ambient temperature, or at user-defined preset time intervals. This automatic recalibration helps maintain weighing accuracy, improves measurement reliability, and ensures compliance with laboratory quality standards. Designed for analytical balances, precision balances, laboratories, pharmaceutical industries, research institutes, educational institutions, and quality control applications, the CONTECH Motorized Calibration System provides convenient, reliable, and maintenance-free calibration for high-precision weighing. Features • Fully automatic internal calibration system. • Smooth and noiseless motor-driven calibration mechanism. • Eliminates the need for external calibration weights. • High-precision stainless steel internal standard weight. • Automatic software compensation for calibration weight tolerances. • Calibration can be programmed at power-on. • Automatic recalibration when ambient temperature changes. • User-programmable scheduled calibration. • Improves weighing accuracy and repeatability. • Reduces maintenance and operator intervention. • Ideal for analytical and precision laboratory balances.

Anti-Vibration Tables The CONTECH Anti-Vibration Table is specially designed to provide a stable, vibration-free working platform for analytical balances, precision laboratory balances, and other sensitive laboratory instruments. It is an ideal solution for research & development laboratories, quality control laboratories, testing laboratories, pharmaceutical industries, educational institutions, chemical laboratories, and industrial facilities where machinery or environmental vibrations can affect weighing accuracy. The Anti-Vibration Table is engineered to minimize external vibrations that may interfere with high-precision measurements. It features a Grade 1 granite surface plate with a high-accuracy finish, providing a flat and stable platform for analytical instruments. The granite surface is isolated from the table frame using multiple vibration-damping layers that significantly reduce the transmission of external vibrations. The table incorporates a dual vibration isolation system, with one damping mechanism positioned beneath the granite surface and another integrated into the adjustable leveling feet. This design effectively absorbs more than 90–95% of vibrations, ensuring consistent and reliable weighing performance even in demanding laboratory environments. The sturdy construction, precision granite top, adjustable leveling feet, and optional swivel and tilt mechanism allow the table to be installed on uneven floors while maintaining excellent stability. With a horizontal natural frequency of 4–5 Hz, the CONTECH Anti-Vibration Table provides optimum vibration isolation for accurate laboratory measurements and sensitive testing applications. Designed for durability, precision, and long-term reliability, the CONTECH Anti-Vibration Table is an essential accessory for laboratories that require highly accurate weighing and vibration-free instrument operation. Features • Designed for analytical balances and precision laboratory instruments. • Ideal for R&D, quality control, and testing laboratories. • Suitable for environments with machine-induced vibrations. • Grade 1 granite surface plate with high-accuracy finish. • Surface flatness accuracy of approximately 20 microns. • Dual vibration isolation system for superior performance. • Granite top isolated using four stacks of five-layer vibration insulation sheets. • Vibration isolators absorb more than 90–95% of external vibrations. • Adjustable leveling feet for accurate table leveling. • Optional swivel and tilt leveling feet for uneven floor surfaces. • Horizontal natural frequency of 4–5 Hz for effective vibration isolation. • Heavy-duty construction for long-lasting laboratory use.

Standard Weights CONTECH offers a comprehensive range of Standard Weights designed for the calibration and verification of precision weighing instruments used in laboratories, research institutes, pharmaceutical industries, manufacturing units, calibration laboratories, educational institutions, and quality control departments. Manufactured in accordance with international metrological standards, these standard weights provide accurate, reliable, and repeatable calibration results for high-precision laboratory balances and weighing systems. As India's leading manufacturer of magnet-based electronic balances, CONTECH provides the perfect solution for laboratories and industries requiring precision weighing, certified standard weights, and professional calibration services. The standard weights are manufactured to meet the metrological requirements specified in OIML R111, ensuring high accuracy and dependable performance during calibration procedures. For accurate calibration, the standard weights should have an error not exceeding one-third of the maximum permissible error of the weighing instrument at the applied load. Proper selection of calibration weights depends on factors such as the maximum capacity of the balance, readability (least count), required weighing accuracy, and permissible weighing tolerance. CONTECH Standard Weights are suitable for routine calibration, verification, quality assurance, laboratory testing, industrial weighing applications, and compliance with national and international quality standards. They help maintain the accuracy, consistency, and reliability of electronic balances, analytical balances, precision balances, and industrial weighing systems.