Mitutoyo 0 - 25 mm Digital Micrometer Without Data Output, 293-821-30

A Mitutoyo basic, cost-effective digital micrometer. The highly stable frame incorporates a heat shield to preserve accuracy over extended measuring sessions. A ratchet stop guarantees repeatable measurement. This Standard Digimatic Micrometer is an affordable device that offers the following benefits:

• It is cost-effective with simplified functionality for standard applications.
• Extraordinary battery life of 2,4 years. Without data output.
• Constant measuring force.
• Equipped with measurement data output function, it can form part of a statistical process control system or networked measurement system.
• Interface Input Tools are available that enable the conversion of measurement data to keyboard signals that are then directly inputted to cells in off-the-shelf spreadsheet software such as Excel.
• Simple design and excluding the data output function keeps price economical.
• One switch operation (Origin Set) for easy use.
• Equipped with Ratchet Stop for constant measuring force.

Function:

• Origin point setting (ABS measurement system): Resets the ABS origin at the current spindle position to the minimum value of the measuring range and switch to ABS mode.
• Zero-setting (INC measurement system): A brief press on the ZERO/ABS button sets display to zero at the current spindle position and switches to the incremental (INC) measuring mode. A longer press rese to the ABS measuring mode.
• Hold: Pressing the HOLD button freezes the current value in the display. This function is useful for preserving a measurement in situations of poor visibility where the instrument must be moved away from the workpiece before the reading can be recorded.
• Function lock: This function allows the PRESET (origin point setting) function and the ZERO (zero-setting) function to be locked to prevent these points from being reset accidentally.
• Auto power ON/OFF: The reading on the LCD disappears after this instrument is idle for about 20 minutes, but the reading and measurement mode is retained. Turning the spindle causes the reading to reappear.
• Data output: Models equipped with this function have an output port for transferring measurement data to a Statistical Process Control (SPC) system.
• Error alarm: In case of an overflow on the LCD or a computing error, an error message appears on the LCD, and the measuring function stops. This prevents an instrument from giving an erroneous reading. Also, when the battery voltage drops to a certain level, the low-battery-voltage alarm annunciator appears well before the micrometer becomes unusable.

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