Noticias Internacionales
Protestan en Guatemala para pedir renuncia del presidente por escasez de vacunas anticovid
Desde febrero, han llegado a Guatemala 658.200 dosis de vacunas contra el nuevo coronavirus: 205.000 provenientes de donaciones de Israel e India; 50.000 en compra a Rusia y 403.200 del mecanismo Covax de la OMS.
Decenas de guatemaltecos exigieron este sábado en el centro de la capital la renuncia del presidente Alejandro Giammattei, al responsabilizarlo por la falta de vacunas contra el covid-19.
«Estamos protestando para que renuncie [Giammattei] y que nos diga dónde está el dinero de las vacunas», dijo a la agencia France-Presse una manifestante, que alzaba una manta en la manifestación.
«Las vacunas van en el brazo, no en los bolsillos», señalaba el cartel, desplegada durante la protesta desarrollada frente al Palacio Nacional, antigua sede de gobierno que fue resguardada por un nutrido contingente de policías.
Desde febrero, han llegado a Guatemala 658.200 dosis de vacunas contra el nuevo coronavirus: 205.000 provenientes de donaciones de Israel (Moderna) e India (Covishield); 50.000 (Sputnik V) en compra a Rusia y 403.200 (AztraZeneca) del mecanismo Covax de la Organización Mundial de la Salud (OMS).
Para los manifestantes, los números reflejan una mala gestión y alimentan sospechas de corrupción.
Giammattei, un médico de 65 años, ha señalado que la falta de vacunas obedece a la alta demanda mundial y ha criticado a Covax por el retraso en las entregas del inmunizante. Además, se ha autoelogiado por la atención de la pandemia.
Desde marzo del año pasado, el país centroamericano acumula 233.696 casos positivos de covid-19 y 7.695 muertes, una letalidad del 3,2%.

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Balanceadora
Equipos de balanceo: importante para el rendimiento uniforme y productivo de las máquinas.
En el campo de la ciencia actual, donde la efectividad y la seguridad del sistema son de suma trascendencia, los sistemas de calibración tienen un función esencial. Estos sistemas específicos están creados para balancear y fijar componentes dinámicas, ya sea en maquinaria productiva, medios de transporte de transporte o incluso en equipos hogareños.
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Balanset-1A: Revolutionary Compact Balancer & Vibration Analyzer
Industrial-grade Dynamic Balancing Solution
Balanset-1A constitutes an revolutionary solution for rotor balancing of rotors in their own bearings, engineered by Estonian company Vibromera OU. The device provides professional equipment balancing at €1,751, which is 3-10 times more affordable than traditional vibration analyzers while maintaining high measurement accuracy. The system allows on-site balancing directly at the equipment’s working position without necessitating disassembly, which is vital for preventing production downtime.
About the Manufacturer
Vibromera OU is an Estonian company concentrating in the development and manufacturing of instruments for technical diagnostics of industrial equipment. The company is incorporated in Estonia (registration number 14317077) and has offices in Portugal.
Contact Information:
Official website: https://vibromera.eu/shop/2/
Technical Specifications
Measurement Parameters
Balanset-1A ensures precise measurements using a twin-channel vibration analysis system. The device measures RMS vibration velocity in the range of 0-80 mm/s with an accuracy of ±(0.1 + 0.1?Vi) mm/s. The working frequency range is 5-550 Hz with potential extension to 1000 Hz. The system supports rotational speed measurement from 250 to 90,000 RPM with phase angle determination accuracy of ±1 degree.
Operating Principle
The device utilizes phase-sensitive vibration measurement technology with MEMS accelerometers ADXL335 and laser tachometry. Two mono-directional accelerometers measure mechanical oscillations proportional to acceleration, while a laser tachometer generates pulse signals for determining RPM and phase angle. Digital signal processing includes FFT analysis for frequency analysis and proprietary algorithms for automatic computation of balancing masses.
Full Kit Package
The standard Balanset-1A delivery includes:
Measurement unit with USB interface – main module with embedded preamplifiers, integrators, and ADC
2 vibration sensors (accelerometers) with 4m cables (optionally 10m)
Optical sensor (laser tachometer) with 50-500mm measuring distance
Magnetic stand for sensor mounting
Electronic scales for precise measurement of corrective masses
Software for Windows 7-11 (32/64-bit)
Plastic transport case
Complete set of cables and documentation
Performance Capabilities
Vibrometer Mode
Balanset-1A works as a complete vibration analyzer with abilities for measuring overall vibration level, FFT spectrum analysis up to 1000 Hz, calculating amplitude and phase of the fundamental frequency (1x), and continuous data recording. The system delivers display of time signals and spectral analysis for equipment condition diagnostics.
Balancing Mode
The device supports single-plane (static) and dual-plane (dynamic) balancing with automatic calculation of correction masses and their installation angles. The unique influence coefficient saving function permits considerable acceleration of follow-up balancing of identical equipment. A specialized grinding wheel balancing mode uses the three-correction-weight method.
Software
The user-friendly program interface offers step-by-step guidance through the balancing process, making the device accessible to personnel without specialized training. Key functions include:
Automatic tolerance calculation per ISO 1940
Polar diagrams for imbalance visualization
Result archiving with report generation capability
Metric and imperial system support
Multilingual interface (English, German, French, Polish, Russian)
Application Areas and Equipment Types
Industrial Equipment
Balanset-1A is successfully used for balancing fans (centrifugal, axial), pumps (hydraulic, centrifugal), turbines (steam, gas), centrifuges, compressors, and electric motors. In production facilities, the device is used for balancing grinding wheels, machine spindles, and drive shafts.
Agricultural Machinery
The device offers special value for agriculture, where uninterrupted operation during season is critically important. Balanset-1A is applied for balancing combine threshing drums, shredders, mulchers, mowers, and augers. The possibility to balance on-site without equipment disassembly enables avoiding costly downtime during critical harvest periods.
Specialized Equipment
The device is effectively used for balancing crushers of various types, turbochargers, drone propellers, and other high-speed equipment. The RPM frequency range from 250 to 90,000 RPM covers virtually all types of industrial equipment.
Advantages Over Similar Products
Economic Effectiveness
At a price of €1,751, Balanset-1A provides the functionality of devices costing €10,000-25,000. The investment recovers costs after preventing just 2-3 bearing failures. Cost reduction on outsourced balancing specialist services amounts to thousands of euros annually.
Ease of Use
Unlike complicated vibration analyzers requiring months of training, mastering Balanset-1A takes 3-4 hours. The step-by-step guide in the software allows professional balancing by personnel without specialized vibration diagnostics training.
Mobility and Independence
The complete kit weighs only 4 kg, with power supplied through the laptop’s USB port. This allows balancing in remote conditions, at remote sites, and in difficult-access locations without separate power supply.
Versatile Application
One device is adequate for balancing the most extensive spectrum of equipment – from small electric motors to large industrial fans and turbines. Support for single and two-plane balancing covers all typical tasks.
Real Application Results
Drone Propeller Balancing
A user achieved vibration reduction from 0.74 mm/s to 0.014 mm/s – a 50-fold improvement. This demonstrates the remarkable accuracy of the device even on small rotors.
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Engineers effectively balanced radial fans, achieving lower energy consumption, removed excessive noise, and prolonged equipment lifespan. Energy savings paid for the device cost within several months.
Agricultural Equipment
Farmers note that Balanset-1A has become an vital tool preventing costly breakdowns during peak season. Lower vibration of threshing drums led to lower fuel consumption and bearing wear.
Cost and Delivery Terms
Current Prices
Complete Balanset-1A Kit: €1,751
OEM Kit (without case, stand, and scales): €1,561
Special Offer: €50 discount for newsletter subscribers
Bulk Discounts: up to 15% for orders of 4+ units
Ordering Options
Official Website: vibromera.eu (recommended)
eBay: trusted sellers with 100% rating
Industrial Distributors: through B2B channels
Payment and Shipping Terms
Payment Methods: PayPal, credit cards, bank transfer
Shipping: 10-20 business days by international mail
Shipping Cost: from $10 (economy) to $95 (express)
Warranty: manufacturer’s warranty
Technical Support: included in price
Final Assessment
Balanset-1A represents an ideal solution for organizations seeking to establish an effective equipment balancing system without major capital expenditure. The device makes accessible access to professional balancing, permitting small enterprises and service centers to provide services at the level of large industrial companies.
The combination of accessible price, ease of use, and professional functionality makes Balanset-1A an indispensable tool for modern technical maintenance. Investment in this device is an investment in equipment dependability, reduced operating costs, and improved competitiveness of your company.
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