Alfa Laval UltraPure Digital Load Cells
The Alfa Laval weighing system UltraPure is a comprehensive solution for hygienic process weighing and measurement of liquid level, mix ratios, dosage, or batching. Patented technology makes mounting kits unnecessary. Set-up is quick and easy, enabling a more cost effective installation process. A complete laser welded construction makes the weighing system an ideal choice where the production environment is hosed down on a daily basis.
Weighing accuracy depends largely on the selection of a top-quality load cell for your weighing system installation. Alfa Laval provides you with three standard accuracy ranges – 2%, 0.1%, and 0.05% – that cover a total measurement range from 0 to 70,540 pounds.
Alfa Laval is a leading global supplier of products and solutions within the key technology areas of heat transfer, separation, and fluid handling.
Application
Ideal for mixing, dosing, level regulation, or batch tasks, the weighing systems UltraPure offers has enhanced control, increased reliability, and greater precision for non-impact measurement of tank contents in sanitary and biopharm processes.
Operating Principle
The Alfa Laval shockproof digital load cells are based on a patented capacitive measurement principle where a non-contact capacitive sensor is mounted inside the load cell body. Each weighing system consists of several load cells, including load cell modules, an electronic output module, which can be either analog or digital, and control modules, for the load cells and cable. To ensure robust and reliable connection between the tank and the load cells, Alfa Laval offers an additional range of tank legs that fits to the load cells. When a load is applied, a portion of the load is transmitted to each load cell, which sends an electrical signal proportional to the load sensed to the control module. The control module converts the signals to an accurate weight reading.
Standard Design
A standard RG 58 coaxial cable up to 164.042 feet (50 meters) in length is all that is required to install the weighing system. A patented Application Specific Integrated Circuit (ASIC) directly converts, compensates, and calibrates the signal from the non-contact capacitive sensor. Calibration of the digital load cells is independent of the load cell cable length.
Because the capacitive sensor is not in contact with the load cell body, the load cells are largely unaffected by overloads, side loads, shocks, and welding voltages. Therefore straightforward mechanical load cell installation is possible. This eliminates the expense of complicated mounting kits and overload protection devices.
TECHNICAL DATA
| Measuring Range | Min. | 0 - 661 lbs |
| Max. | 0 - 220 lbs (depending on systemselection) | |
| Protection Class | Load cells | IP68 |
| Electronic modules | IP20 | |
| Electrical Data | Power supply | 24 VDC (2A) |
| Output | 4-20 mA Profibus DP (option) DeviceNet (option) Ethernet IP (option) | |
| Cable | From load cell to electronic module | 20 ft standard RG58 withBNC connector (option: 33,66, or 164 ft) |
| Cable | Between electronic modules | Ribbon cable |
| Certificates | Options | Calibration certificate 3.1 certificate |
Physical Data
| Materials | Load cell | AISI 316 and 17-4 PH |
| Operating Temperature | Load cell range | 14 to 140°F |
| Electronics range | -40 to 122°F | |
| Temperature compensated range | 14 to 122°F | |
| Weight | Type TE67JH, TE67JJ, TE67JK, TE67JN,TE67JO, TE67JP, TE67JL, TE67JS,TE67JT, TE67JU | 15.5 lb |
| Other types | 4.6 lb | |
| Electronic modules | Approx. 1 lb |
Product Resources
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