Manufacturers know that product performance and selection comes down to several variables that must be optimized for the particular need at hand. The same is true with measurement tools. And when it comes to measurement tools, dial gauges and digimatic indicators are no different.
While dial gauges and digimatic indicators have vast similarities, they have unique variations that result in optimization for your specific need.
How Dial Gauges and Digimatic Indicators Work
It is likely that you know the difference between a dial gauge and a digimatic indicator. The dial gauge is going to be mechanical, using gears and a spring-loaded plunger that enables the needle to deflect, resulting in a measurement being displayed on the analog dial. No batteries required!
The digimatic indicator, on the other hand, uses an internal linear encoder to detect displacement electronically, displaying the results on the LCD readout.
Key Differences in Precision and Durability
Dial gauges and digimatic indicators also differ in output accuracy, particularly readability and repeatability.
Since a dial gauge is a manual analog tool, naturally there can be risks of user error, such as parallax error. However, dial gauges have no electronics that might fail and are typically more suited for tougher environments such as those where oil or coolant is present. There are some higher end digimatic indicators that can also withstand these environments, but you’ll have to look for IP65 or higher ratings.
The main advantage to digimatic indicators is that they tend to be more consistent over multiple readings, with built-in electronic sensors minimizing human error, enabling better repeatability and reliability. One other great feature of digimatic models is they can have data output functions for automatic data logging. No need to bring out the notepad for models that have a Bluetooth connection right to your PC.
Choosing the Right Tool for Your Application
When it comes to making a decision between a dial gauge and a digimatic indicator, it really comes down to what the usage case is and your budget. Keep in mind that digimatic indicators tend to run more expensive due to the additional functions and features that are found in them.
Do you need a tool to run some rough checks quickly? Go for the more affordable dial gauge. Do you need to log precise measurements in your QA lab for record keeping and data analysis? Then be sure to go with the digimatic indicator.
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