How to Calibrate Your Westlab Precision Balance

When accuracy matters, calibration is key. Whether you’re using a 600g, 3000g, or 6000g Westlab Precision Balance, regular calibration ensures reliable and repeatable results — and protects the integrity of your work. 

In this guide, we’ll walk you through the exact steps to calibrate your balance, explain when to do it, and share a few expert tips to get the most out of your equipment. 

Why Calibration Matters 

A Westlab Precision Balance is built with high-precision load cells and intelligent calibration features, but environmental changes, movement, or even simple wear can affect readings. Routine calibration ensures your results stay accurate and compliant with lab standards. 

Before You Begin: Set Yourself Up for Accuracy 

Choose the Right Location 

• Place the balance on a strong, stable, flat surface.
• Avoid direct sunlight, airflow from vents, or vibration from nearby equipment. 

Warm Up the Balance 

• Turn on the balance and leave it in weighing mode for 15–30 minutes before calibrating.
• Unlock the rechargeable battery using the switch at the base. 

Calibration Weights You’ll Need 

Tip: Always use certified calibration weights for best results. 

Step-by-Step: How to Calibrate 

1. Enter Calibration Mode:  Press and hold the CAL button until the weight value on the display begins to flash.
2. Place the Calibration Weight: Put the correct calibration weight on the pan and wait until the display stabilises. 
3. Complete the Calibration: Once the reading stops flashing, remove the weight. The balance will return to 0.00g — you’re calibrated. 

When to Calibrate 

You should recalibrate your Westlab Precision Balance: 

• After moving it to a new location. 
• If the temperature or humidity changes significantly. 
• If measurement results seem inconsistent. 

For Higher Accuracy: Linearity Calibration 

If the tolerance is still outside acceptable limits after calibration: 

1. Hold CAL until the number flashes, then hold CAL again.
2. Follow the prompts to place the specified weights.
3. When complete, the display will return to 0.00g. 

Pro Tips from Westlab 

1. Store calibration weights in a clean, dry case.
2. Handle weights with gloves or tweezers to avoid adding oils from your skin.
3. Avoid exceeding the maximum capacity, this can damage the sensor. 

With proper calibration, your Westlab Precision Balance will deliver the consistency and reliability you need for every experiment. 

Need more help? Contact the Westlab team at sales.au@westlab.com or call 1800 358 101.