Interfacing hx 711 and s type load cell

Hello everyone,

I would like to know whether i can interface a 100 kg s type load cell with hx 711. I also want to know which s type load cell will match with hx 711 and what parameters are required to match a s type load cell with hx 711

The datasheet for HX 711 and the 100 kg s type load cell is attached below.


Cable Length 5 mtr. Minimum(4 Core Screened)
Model Number 20210 Thread Type
Nominal Output 3.0 m V/ V
Ultimate Overload Of Rated Capacity 250
Standard Capacities 20, 30, 50, 75, 100, 150, 200, 250,300, 500, 750 - Kgf 1,1.5,2, 2.5,3, 5, 7.5, 10, 15, 20-Tf
Excitation Voltage 10 VDC- Maximum 15 VDC
Insulation Resistance 1000 Mega Ohms(50 VDC)
Safe Overload of Rated Capacity 150%
Allowable Side Load 50%
Temp Compensated Range 0-60 0C
Finish and Construction Electroless Nickel Plated Tool Steel
Environmental Protection Class IP67

hx711_english.pdf (160 KB)


Ok! Answer to the following question:

The load cell produces 3.0 mV per 1V of excitation.

How much will it produce when the applied excitation is 10V? Is is 30 mV?

Is this 30 mV for the rated load of 100 kg?

Now, check the specifications of HX711 Module; you will be able to understand why the module contains high programmable amplifiers!