Posts Tagged ‘Models and features’
How to Choose a Strain Gauge Load Monitor
Load monitoring devices, also called load cell sensors or tension monitors, measure the force exerted by the load on equipment, structural members or other components subjected to the load. Electronic load and tension monitoring devices find application across a broad spectrum of industry. One example is on construction cranes to assure the load – such as I-beams or fresh-mixed concrete – does not exceed the capacity of the crane. Another application is measuring the strain on wires strung between pylons or insuring that structural components on aircraft are balanced and safe to fly.
Load cells such as the Straightpoint Loadlink and Radiolink equipment available from Tovatech can also be used as crane scales and thus are employed for tension monitoring and weighing.
How a Strain Gauge Load Monitor Works
Using the Straightpoint load and tension monitor and a building crane as the application, the device is positioned between two lifting … Read the rest
Residual Contaminant Analysis with Ultrasound
For residual contaminant analysis particles must be removed from the test item before the actual analysis is carried out. Ultrasound with its predefined parameters is a suitable and cost-saving method for this. After removal solid contaminants can be filtered and analyzed. Soluble contaminants are concentrated by evaporation then analyzed.
The right ultrasonic equipment coupled with thought-through accessories is crucial for a successful analysis. The Elmasonic Select 120 ultrasonic cleaner available from Tovatech, along with sample suspension devices, provide an ideal method for residual contaminant analysis.
Several methods are available to protect products from recontamination. For example, parts being analyzed can be placed in glass beakers or test tubes containing a suitable solution. These are suspended in the ultrasonic cleaner solution. Ultrasound transmitted from liquid in the tank to the solution in the container acts on and removes the residual contaminants for subsequent analysis.
Contact the scientists at Tovatech … Read the rest
Selection Tips for a -40˚C Lab Freezer
Laboratory freezers and scientific freezers play an important role in product protection and testing. This applies to the healthcare/pharmaceutical industry and for testing mechanical components under extreme cold temperature conditions. Lab freezers are manufactured to operate most efficiently at specific temperatures required by research and product development personnel.
Selecting the correct scientific freezer temperature depends on several factors including government, professional association and industry standards. That’s why Tovatech offers a wide variety of low temperature freezers such as the Nor-Lake Premier -40˚C model.
Temperatures, Costs and other Lab Freezer Specification Factors
While “freezing” suggests 0˚C (32˚F) specifications may require much lower temperatures. Units are designed to maintain the required temperature in the most efficient manner. The Norlake Premier NSXF221 low temperature laboratory freezer, for example, is factory set to -40˚C although operators can control settings from -30˚C. Keep in mind that the colder the capability the more costly the freezer, … Read the rest
How Basket Design Impacts Ultrasonic Cleaner Efficiency
Baskets and trays used to support products in an ultrasonic cleaner solution have an effect on ultrasonic cleaning efficiency. Ultrasonic cleaner baskets and trays are necessary to keep the products being cleaned from coming in contact with the tank bottom and walls. The design of the ultrasonic cleaner basket or tray should have minimum impact on the level of ultrasonic cavitation. This is because anything placed in an ultrasonic cleaner bath, including the baskets, affects cavitation action by absorbing ultrasonic energy. The goal is selecting a basket or tray design that helps maximize cavitation action on parts being cleaned.
Comparing Basket Design
The October 2005 issue of Managing Infection Control reported on a study of four basket designs and how the design impacted ultrasonic cleaner efficiency. While there are several tests to evaluate the efficiency of an ultrasonic cleaner, including the aluminum … Read the rest
Portable Refrigerator/Freezer for EMS Applications
EMS and other first responder personnel working in areas suffering extended power outages can maintain medical supplies requiring refrigeration by using the compact, portable SPR-FT26 portable refrigerator/freezer unit from Tovatech.
Power is supplied from the EMS vehicle’s 12-volt DC lighter socket, a 24-volt battery source or from an AC adapter connected to 110-volt emergency generators. A wheeled travel trolley is provided to facilitate on-ground transport.Weighing less than 30 pounds the lock-equipped SPR-FT26 portable freezer/refrigerator has a capacity of 20 liters or 0.7 cubic feet and an overall size of 17”h x 21.25”w x 14.25”d. It functions either as a refrigerator or a freezer thanks to an advanced refrigeration unit and computerized digital control system. The unit will freeze below -18˚C in an ambient temperature of 30˚C or be set to operate as a portable refrigerator or cooler. Personnel using the unit should confirm that the cooling or freezing temperatures are … Read the rest
Get 20% Faster Cleaning with New Industrial Ultrasonic Cleaner
Companies offering contract ultrasonic cleaning services and those using an industrial ultrasonic cleaner as part of their ongoing operations know the importance of efficiency and throughput especially when thoroughly cleaned components are critical to quality control.
A technological breakthrough in ultrasonic cleaner design has been achieved by adding a precise ± 2 cm vertical oscillation of cleaning baskets – a process that improves ultrasonic cavitation action to near perfection. A feature of the new Flex Line of industrial ultrasonic cleaners from Tovatech, it provides 10% – 20% faster cleaning than conventional ultrasonic cleaners. Cleaning with vertical oscillation is more thorough than static cleaning and is preferred for precision cleaning applications where small areas of residual contamination are unacceptable and reduce manufacturing yields.… Read the rest
How to Choose Your Next Ultrasonic Cleaner – A Checklist
Ultrasonic cleaning is increasingly being used across a broad spectrum of industries thanks to the advent of biodegradable cleaning solutions and the development of vastly improved ultrasonic cleaning equipment. No other cleaning method is as fast and as efficient as ultrasonic cavitation for removing any and all contaminants from parts or assemblies, regardless of the complexity of configuration.
Ultrasonic cleaners range from small tabletop units for cleaning jewelry and eyewear to custom multi-step automated assembly lines such as used for cleaning mobile thin film transistor (TFT) liquid crystal displays for mass production.
At Tovatech we are delighted to help customers and prospects decide on which ultrasonic cleaner and what ultrasonic cleaning solution best matches their ultrasonic cleaning requirements. With the wide variety of sizes and features available today there is sure to be an ultrasonic cleaner and process that suits users’ requirements to a “T.”
To help make the selection, … Read the rest
How to Use an Ultrasonic Clock Cleaner
Another interesting note from a customer:
“Don’t knock my smock or I’ll clean your clock” was a panel line in a Calvin and Hobbes cartoon strip. As one who repairs antique clocks I checked the origin of the phrase and found that it usually signifies a violent encounter. Not a good idea when dealing with a customer’s heirloom time keeper.
Most of the clocks I clean and repair have brass works – the gears and frames – along with steel parts such as verges, spindles, spacers and springs. In my early days cleaning these parts after disassembly entailed dipping them into a solvent and using a soft brush to work away grime and dried lubricants. A messy process indeed, and not that satisfactory in terms of results.
An ultrasonic cleaner has proven far more satisfactory, but when using this technology for clocks and watches care must be taken not to … Read the rest
