General Classification
There are several variables in dial indicators:
- Analog versus digital/electronic readout (most are analog)
- Dial size. Typically referred to be American Gauge Design Specification (AGD):
| AGD | Diameter range (in) | Diameter range (mm) |
|---|---|---|
| 0 | 1 > 1-⅜ | 25 > 35 |
| 1 | 1-⅜ > 2 | 35 > 50 |
| 2 | 2 > 2-⅜ | 50 > 60 |
| 3 | 2-⅜ > 3 | 60 > 75 |
| 4 | 3 > 3-¾ | 76 > 95 |
- Accuracy
- Range of travel
- Number of dial revolutions
- Dial style: balanced (e.g., -15 to 0 to +15) or continuous (e.g., 0 to 30)
- Graduation style: positive numbers (clockwise) or negative numbers (counterclockwise)
- Revolution counters, which show the number of revolutions of the principal needle.
Read more about this topic: Indicator (distance Amplifying Instrument)
Famous quotes containing the word general:
“In democratic ages men rarely sacrifice themselves for another, but they show a general compassion for all the human race. One never sees them inflict pointless suffering, and they are glad to relieve the sorrows of others when they can do so without much trouble to themselves. They are not disinterested, but they are gentle.”
—Alexis de Tocqueville (1805–1859)