3kg 6kg 10kg 20kg 30kg Digital Weighing Sensor For Unmanned Vending
Machine
Digital Weighing Sensor FDNF utilizes a built-in microprocessor to convert mV signal from
bonded wheatstone bridge into digital output,which makes load cell
sensor FDNF more stable and accurate compared to analog load cells.
Digital weight sensor FDNF supports RS485 Modbus RTU protocol with
0-3kg / 0-6kg / 0-10kg / 0-20kg / 0-30kg / 0-40kg six rated measuring ranges to choose from, it is corner trimmed for
off-center load measurement with platform sizes up to 250x350mm,
temperature compensation process guarantees stable readout in a
wide temperature range. Typical applications of digital load
cell transducer FDNF are for example smart shelves, vending machines, unmanned stores, intelligent inventory management system and so on.
Dimensions
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.
Specifications
| Rated capacity | 3kg 6kg 10kg 20kg 30kg 40kg |
| 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 | Ø4*400mm 4-wire |
| Wiring code | Red--Power+
Black--Power-
Green--RS485 A
White--RS485 B |
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 FDNF 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 FDNF especially suitable for weight measurement where
multiple loadcells are involved such as smart shelves,intelligent
warehouse management,etc.
3kg 6kg 10kg 20kg 30kg Digital Weighing Sensor For Unmanned Vending
Machine
