Metrology Instruments

Dial Indicators

dial_test_indicator

The Use and Care Of Lever Dial Test Indicators

British Standard Reference : BS 2795 : 1981

1. Always select the dial test indicator that best fits the application.

2. Care should be taken while using a dial test indicator, try not to jolt the indicator, should you be unfortunate and drop a dial test indicator, get it re-calibrated/repaired before reusing it.

3. Replace worn contact points only with those of a similar length from the centre of the ball stylus to the abutment shoulder.

4. Always clean dial test indicators after use with a lint free paper or cloth and store the indicator in its box or in a dust free area.

5. When using a dial test indicator, always position the dial test indicator in a horizontal plane to the surface media.

6. Always use a rigid stand for mounting the dial test indicator.

7. When measuring a rotating object, either between centres or in a vee block, ensure that the object is rotating in the correct direction. Never rotate the workpiece towards the contact point.

8. When measuring a sliding object, only take readings when the object is moving directly towards the contact point, never away from the contact point or in a sideways manner.

9. Avoid parallax errors by reading the dial directly from the front and square on to the dial.

10. Never oil a dial test indicator as this attracts contamination, should the movement become erratic then the dial test indicator should be submitted to a reputable repair agent.

11. Try not to expose dial test indicators to direct sunlight or in a high humidity environment.

12. Never use a dial test indicator that has not been calibrated, if in doubt consult an appropriate authority.

The Use and Care Of Plunger Dial Test Indicators

British Standard Reference : BS 907 : 1965

1. Always select the dial test indicator that best fits the application.

2. Care should be taken while using a dial test indicator, try not to jolt the indicator, should you be unfortunate and drop a dial test indicator, get it re-calibrated/repaired before reusing it.

3. Replace worn contact points.

4. Always clean dial test indicators after use with a lint free paper or cloth and store the indicator in its box or in a dust free area.

5. When using a dial test indicator, always position the dial test indicator square in both planes to the surface media.

6. Always use a rigid stand for mounting the dial test indicator.

7. Avoid parallax errors by reading the dial directly from the front and square on to the dial.

8. Never oil a dial test indicator as this attracts contamination, should the movement become erratic then the dial test indicator should be submitted to a reputable repair agent.

9. Try not to expose dial test indicators to direct sunlight or in a high humidity environment.

10. Never use a dial test indicator that has not been calibrated, if in doubt consult an appropriate authority.