Visual Guide to Load Cell Connections and Operation

A Load Cell Diagram is one of the best ways to understand how a load cell functions. Whether you’re connecting a load cell to an amplifier (HX711), controller, or PLC system, wiring and signal flow diagrams are critical for proper installation.

At Sensors and Gauges, we not only supply genuine load cells in Australia but also provide technical resources to make setup simple and error-free.

👉 Request a Quote for Load Cells

---

What Is a Load Cell?

A load cell is a sensor that converts mechanical force (weight or tension) into an electrical signal. The most common type is the strain gauge load cell, which works on changes in resistance when force is applied.

👉 Related: What Does a Load Cell Measure?

---

Basic Load Cell Diagram

Here’s a simplified representation of a load cell wiring diagram:

• Red Wire (+E) → Positive Excitation

• Black Wire (–E) → Negative Excitation

• Green Wire (+S) → Positive Signal

• White Wire (–S) → Negative Signal

This is the standard 4-wire load cell diagram used in most weighing applications.

---

4-Wire vs 6-Wire Load Cell Diagrams

• 4-Wire Load Cell Diagram

  • Red: +Excitation

  • Black: –Excitation

  • Green: +Signal

  • White: –Signal

• 6-Wire Load Cell Diagram (adds sense wires for better accuracy over long cables):

  • Red: +Excitation

  • Black: –Excitation

  • Green: +Signal

  • White: –Signal

  • Blue: +Sense

  • Yellow: –Sense

👉 Related: Load Cell 6 Wire Explained

---

Load Cell with 4–20mA Output Diagram

For industrial applications, many load cells are connected via amplifiers that convert the millivolt signal into a 4–20mA current loop.

👉 Related: Load Cell 4–20mA Output

---

Applications of Load Cell Diagrams

A proper load cell diagram helps in:

• 🛠️ Wiring & Installation – Avoiding polarity mistakes

• ⚡ Calibration – Ensuring accurate weight readings

• 🏭 System Integration – Connecting load cells to controllers, PLCs, and weighing indicators

• 📊 Troubleshooting – Identifying faulty connections or signal loss

👉 Explore: Load Cell Selection Guide

---

Why Buy Load Cells from Sensors and Gauges?

• ✅ Wide range – from small 1kg load cells to 100-ton industrial sensors

• ✅ Fast delivery across Australia

• ✅ Local Sydney-based support for wiring & calibration

• ✅ Stock from global brands like Zemic, Flintec & Anyload

• ✅ Warranty-backed products

👉 Buy Load Cells Online in Australia

---

External Resources

• Load Cell Solutions – Technical expertise on weighing systems

• Load Cell Shop – Australian supplier of load cells

---

Location & Support

📍 Sensors and Gauges
Unit 27/191, McCredie Road, Smithfield, NSW 2164

📞 0477 123 699
📧 sales@sandsindustries.com.au

💡 Smart Tip: Always double-check the load cell wiring diagram before connecting to prevent damage to amplifiers or controllers.

---

Final Thoughts – Load Cell Diagram

A Load Cell Diagram makes it easier to understand how these powerful sensors function. From 4-wire strain gauge models to 6-wire sense configurations and 4–20mA outputs, wiring correctly ensures accuracy and reliability.

At Sensors and Gauges, we not only supply load cells across Australia but also provide the technical guidance you need to install and operate them correctly.

👉 Request a Quote for Load Cells