Dial Indicator Measurement Techniques

This video tutorial explains how to read a dial indicator, detailing its parts such as the dial, bezel, and needles. It covers the process of reading measurements, including advanced techniques and the importance of calibration. The tutorial emphasizes understanding the function of each component and provides guidance on zeroing the dial for accurate readings.

What is the purpose of the bezel on a dial indicator?

• To display digital readings

• To rotate and align the zero point

• To lock the needle in place

• To measure temperature

Which part of the dial indicator is responsible for counting the revolutions of the long hand needle?

• The contact point

• The spindle

• The short hand needle

• The bezel

What is the function of the spindle on a dial indicator?

• To measure temperature

• To lock the bezel

• To raise and lower the contact point

• To display digital readings

How are the graduations on the bezel of a dial indicator typically marked?

• In millimeters

• In thousands of an inch

• In centimeters

• In degrees

If the long hand needle moves halfway between two marks, what should you do?

• Add 10 to the reading

• Round up or down

• Ignore the reading

• Reset the dial

What does the shorthand needle indicate on a dial indicator?

• The temperature

• The number of full revolutions

• The pressure

• The speed

How do you calculate the total measurement if the shorthand needle is on 1 and the long hand needle is on 50?

• 200 thousandths

• 100 thousandths

• 50 thousandths

• 150 thousandths

Why is it important to zero the bezel before taking measurements?

• To start measurements from a known reference point

• To prevent the needle from moving

• To ensure the dial is clean

• To save battery life

What should you do if the dial indicator reads 49 when it should be zero?

• Replace the dial indicator

• Ignore the reading

• Rotate the bezel to align zero with the long hand

• Add 49 to all measurements

If the long hand needle is on 30 and the shorthand needle is past 4, what is the correct reading?

• 30 thousandths

• 430 thousandths

• 130 thousandths

• 530 thousandths