Introduction
A beam balance is a weighing instrument that determines the mass of an object by comparing it with known standard masses using a horizontal beam pivoted at its center, based on the principle of moments, and it is one of the oldest and most fundamental types of balance used in science and commerce. The instrument consists of a rigid horizontal beam supported on a central fulcrum, with two pans suspended from the ends of the beam by means of strings or knife-edge bearings; the object to be weighed is placed on one pan, and standard weights are added to the other pan until the beam is in equilibrium, at which point the torque on both sides of the fulcrum is equal, so that the mass of the object equals the total mass of the standard weights, and the balance is highly sensitive, allowing small differences in mass to be detected by the deflection of the beam. Beam balances are used in laboratories, schools, pharmacies, and industry for weighing samples, reagents, and materials, and they provide accurate results without requiring electricity, making them useful in field settings, in educational demonstrations, and as reference instruments, and they are available in various capacities and sensitivities, including single-pan, double-pan, and triple-beam configurations, with features such as leveling screws, damping mechanisms, and built-in sliding weights. With their simplicity, reliability, and low cost, beam balances remain useful instruments for mass measurement, especially where electronic balances are not available or where a visual demonstration of the principle of weighing is desired.
Triple beam balance LTBB-T2010
Triple beam balance is a benchtop unit which can weigh items up to 2610 g and has a sensitivity of 0.1 g. Features like 6 inch platform, faster weighing, durable material etc. to get acc...
Double Beam Balance LDBB-T2010
Double Beam Balance is a mechanical double beam balance scale machine with durable aluminum alloy construction, stainless steel platform. Offers classic design with two pans, beams with ...
Standards
OIML R 76-1:2006-Non-automatic weighing instruments-Part 1: Metrological and technical requirements
Complies with the above standards, but is not limited to them.
Features
1. Beam balance for precise weighing using mechanical beam and weights.
2. Classic mechanical design with high accuracy for reliable mass measurement.
3. Suitable for educational laboratories, jewelry, pharmacy and general weighing.
4. No power required, providing dependable operation in any environment.
5. Includes balance beam, weights, weighing pans and operation manual.
FAQ
Q1: What testing scenarios is this balance mainly applied to?
A: The beam balance is used in educational laboratories, jewelry workshops, pharmacies, small businesses and general laboratory settings to measure mass using the classic mechanical beam and weight comparison method. It supports educational physics and chemistry demonstrations and experiments, jewelry and precious metal weighing, pharmacy compounding and dispensing, general laboratory weighing, and applications where a reliable, power-free weighing solution is needed. The mechanical design provides accurate measurement without electricity, making it dependable in any environment. It is essential for educational institutions teaching fundamental measurement principles, jewelry businesses requiring accurate precious metal weighing, pharmacies for compounding, and facilities needing a reliable backup or primary weighing instrument where power may be unreliable, where the simplicity, durability and independence from electrical power make it a practical choice for accurate mass measurement across educational, commercial and laboratory applications.
Q2: What standards does the balance comply with?
A: The beam balance complies with OIML R76 for non-automatic weighing instruments and relevant GB/T standards for mechanical balances. Educational models may follow specific teaching standards. Calibration should use certified weights traceable to international standards for accurate measurement. The balance should be leveled and verified before use.
Q3: What is the warranty period for the whole machine and key components?
A: The whole balance is covered by a 12-month warranty. The beam, frame, pans and knife edges are covered, while weights are accessories. Damage from improper use, overloading, dropping or unauthorized repair is excluded. Knife edges may wear with heavy use.
Q4: Is this device difficult to operate? Is professional training required?
A: Operation requires basic training in mechanical weighing technique including leveling, zeroing and weight manipulation. We provide an operation manual and remote guidance. Proper leveling, zero adjustment, weight handling and reading technique are important for accurate weighing results.
Q5: What is the typical lead-time for order delivery?
A: Standard models require 7-30 working days. In-stock units can ship within 3-7 working days. Custom configurations or large built-to-order systems may require additional time, and we confirm the exact schedule before order confirmation.
Q6: Is regular calibration required? What is the recommended calibration cycle?
A: Calibration with certified weights recommended every 6-12 months, or more frequently for precision use. Knife edge condition and beam alignment verified periodically. Level check before each use. Weight set verified for accuracy. Routine cleaning and protection from dust and moisture recommended.
Q7: Are supporting consumables universal?
A: Calibration weights are available from laboratory suppliers, though certified weights are recommended for accuracy. Long-term consumable cost is very low for a mechanical beam balance.
Q8: Can I customize parameters or supporting accessories?
A: Customization includes capacity, readability, weight set, finish and base type. Additional weights, dust covers and accessories can be ordered separately. Custom orders extend delivery lead-time.
Q9: Does the purchase include on-site installation and commissioning service?
A: No complex installation is required beyond leveling on a stable surface. The package includes the balance, weights and instruction manual. On-site calibration and training service are available at additional cost for educational or commercial setup.
Q10: What types of samples are compatible with this equipment?
A: The beam balance weighs solid samples within the capacity and pan size. Liquids require appropriate containers. Very light samples may require higher precision model. Corrosive samples should be placed in covered containers to protect the pans and beam. Users should ensure the balance is on a stable, level surface, zero it before each use, handle weights with tweezers to prevent corrosion, avoid overloading, protect knife edges from damage, and calibrate regularly with certified weights for accurate, reliable mass measurement. The balance should be protected from dust, moisture and vibration when not in use.
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