You're actually looking for four steps to using a triple beam balance. Here's the breakdown:

1. Zero the Balance: Before placing your object, make sure the balance is level and the pointer aligns with the zero mark. This ensures accurate measurements.

2. Place the Object: Carefully place the object on the pan.

3. Adjust the Beams: Starting with the largest beam, move the rider until the pointer moves close to zero. Then, move the middle beam, and finally, fine-tune the reading with the smallest beam.

4. Read the Measurement: Add the values from each beam to obtain the total weight of the object.

Let me know if you'd like a more detailed explanation of any of these steps!