Loadcells 3- or 4-wire

Other Hardware Sensors
1

I have a question: Why isn't there any 3-wire loadcells with max weight less than 50 Kg? I would prefer to hook up 4 cells with one HX711, but it seems impossible with 4-wire cells.

I want to measure weights between 0 and 25 Kg, but need the mechanical stability of four cells. If I make it with 50 Kg cells (total weight possible=200 Kg), how small weight is measurable?

2

I have no problem finding all sorts of 3-wire bar load cells on ebay.
Leo..

3

Really??? Please post a link, I find only 4 wire...

4

Oops, yes, they are 4-wire. Hard to see the white wire.

I suppose you can just parallel the four 4-wire load cells.
Or use the load cells as half-bridge.
Or use four HX711 boards, and add in software.
Leo..

5

google mini or micro half bridge load cell

one result, available in 10kg: Half Bridge Strain Gauge Micro Load Cell- GALOCE