Weighing systems UltraPure 0 pages

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kyNon impact level and load measurement for your tank
Alfa Laval Weighing Systems UltraPure
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Application
The Alfa Laval weighing system is designed to be integrated with
Alfa Laval tanks legs and offers a high precision and non impact
measurement of weight, ideal for mixing, dosing, level or batch tasks.
Main features:
- Robust and shockproof, can tolerate up to 300% overload or side
load
- Load cells are produced in stainless steel and hermitically sealed
to IP68
- Designed for Clean rooms
- Hygienic design for sanitary installation
- Simple and fast mechanical installation without mounting kits
- Load cells are pre-calibrated
- Load cell calibration are independent of cable lenght
- Simple electrical installation, plug and play
- Integrated diagnostic feature for detailed diagnostic and surveillance
of weighing system
- Load cells are ATEX certified for zone 1 and 2
- Load cell cable lengths up to 50 mtr
Standard range
The Alfa Laval weighing system is a complete process solution offered
for process weighing installation where level measurement, mixing,
dosing or batching is required.
The weighing solution is as standard delivered in three different
accuracy ranges: 2%, 0,1% and 0,05% with a total measuring range
from 0 to 32000 kg.
Each weighing system consists of a number of load cells including load
cell modules and an electronic output module. The output modules
are available with both analog 4-20 mA and digital (Profibus DP and
DeviceNet) outputs.
For high hygienic demands the load cells are offered as electropolished
and hermitically sealed to IP68 with laser welding.
Alfa Laval offers an additional range of tank legs that fits to the load
cells ensuring a robust and reliable connection between the tank and
the load cells.
In hazardous areas, Alfa Laval offers Load cells suited for installation in
ATEX Zone 1 and 2.
Working principle
The Alfa Laval shockproof digital load cells are based on a patented
capacitive measurement principle where a non-contacting capacitive
sensor is mounted inside the load cell body. As the capacitive sensor
is not in contact with the load cell body, the load cells are to a very
high degree unaffected by overloads, sideloads, shocks and welding
voltages. Therefore straightforward mechanical installation of the load
cells can be done without expensive complicated mounting kits and
overload protection devices.
The electrical installation of the digital load cells is pure plug-and-play
as the signal from the non-contacting capacitive sensor is directly
converted, compensated and calibrated by a patented ASIC. The
digital signal is transmitted as RS485 data on a low-cost RG-58 single
wire coaxial cable which may be up to 50 meters long. The calibration
of the digital load cells is independent of the load cell cable length.