Digital Load Cell With RS485 Output For Smart Shelf Weighing System
Digital load cell FDNE utilizes a built-in microprocessor to
convert mV signal from bonded wheatstone bridge into digital
output,which makes load cell sensor FDNE more stable and accurate
compared to analog load cells. Digital weight sensor FDNE supports
RS485 Modbus RTU protocol with 0-2kg / 0-5kg / 0-10kg three rated
measuring ranges to choose from, it is corner trimmed for
off-center load measurement with platform sizes up to 200x200mm,
temperature compensation process guarantees stable readout in a
wide temperature range. Typical applications of digital load
transducer FDNE are for example smart shelves, vending machines, unmanned stores, intelligent warehouse
management system and so on.
Dimensions
Specifications
| Rated capacity | 2kg / 20N / 4.4lb
5kg / 50N / 11lb
10kg / 100N / 22 lb |
| Output | RS485/RS232 (Modbus RTU) |
| Excitation | 5-12V DC |
| Nonlinearity | ±0.02% R.O. |
| Hysteresis | ±0.02% R.O. |
| Nonrepeatability | ±0.01% R.O. |
| Creep(30min) | ±0.02% R.O. |
| Safe overload | 150% F.S. |
| Ultimate overload | 200% F.S. |
| Compensated temperature | 0...+40oC |
| Operating temperature | -20...+60oC |
| Temperature shift zero | ±0.02% R.O./10oC |
| Temperature shift span | ±0.02% R.O./10oC |
| Ingress protection | IP65 |
| Material of element | Aluminum alloy |
| Cable | 32AWG*400mm 4-wire |
| Wiring code | Red--Power+
Black--Power-
Green--RS485 A
White--RS485 B |
Parameters instruction:
Non-linearity: The maximum deviation of the calibration curve from
a straight line drawn between the no-load and rated outputs;
expressed as a percentage of the rated output and measured on
increasing load only.
Non-repeatability: The maximum difference between load cell output
readings for repeated loadings under identical loading and
environmental conditions.
Hysteresis: The maximum difference between load cell output
readings for the same applied load; one reading obtained by
increasing the load from zero and the other by decreasing the load
from rated output; usually measured at half rated output and
expressed in percent of rated output.
Creep: The change in load cell output occurring with specified
period of time, while under load, and with all environmental
conditions and other variables remaining constant; usually measured
with rated load applied.
Safe Overload: The maximum load in percent of rated capacity which
can be applied without producing a permanent shift in performance
characteristics beyond those specified.
A load cell (or loadcell) is a transducer which converts force into
a measurable electrical output. Strain gauge based load cells are
the most commonly used type and suitable for almost all industrial
applications.Strain gauge load sensors contain wheatstone bridge
within them to deliver mV output signal which is proportional to
the applied load/force under constant power supply, thus the
load/force can be measured by measuring the output signal from the
transducer. Digital load cell FDNE outputs digital signal instead
of analog signal through RS485 communication interface utilizing
Modbus RTU protocol,the weight sensor was pre-calibrated before
shipment and the weight value was trasmitted in hexadecimal,
multiple digital load cells can be integrated together in one
system,which makes digital weight transducer FDNE especially
suitable for weight measurement where multiple loadcells are
involved such as smart shelves,intelligent warehouse
management,etc.
Digital Load Cell With RS485 Output For Smart Shelf Weighing System
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datasheet
