1. Introduction
This manual provides essential instructions for the safe and effective use of your Mitutoyo 2044A Dial Indicator. Please read this manual thoroughly before operation and retain it for future reference. The Mitutoyo 2044A is a precision measuring instrument designed for accurate dimensional measurement, featuring a 0.01mm graduation and a 0-5mm measuring range.
Figure 1: Mitutoyo 2044A Dial Indicator. This image displays the front view of the dial indicator, showing the main dial with graduations from 0 to 100, a smaller revolution counter dial, the Mitutoyo logo, model number 2044A, and the measuring spindle.
2. Safety Information
Always handle the dial indicator with care to prevent damage to the precision components. Avoid dropping the instrument or subjecting it to strong impacts. Do not attempt to disassemble the indicator as this may void any warranty and compromise its accuracy.
- Keep the instrument clean and free from dust and debris.
- Store in a dry, stable environment away from extreme temperatures and humidity.
- Use only for its intended purpose of dimensional measurement.
3. Product Components
The Mitutoyo 2044A Dial Indicator typically includes the following main components:
- Dial Face: Displays the measurement readings.
- Main Pointer: Indicates fine measurements (0.01mm graduations).
- Revolution Counter: Tracks full revolutions of the main pointer, indicating millimeters.
- Stem: Used for mounting the indicator.
- Measuring Spindle: The movable rod that contacts the workpiece.
- Contact Point: The tip of the measuring spindle that touches the surface being measured.
- Bezel: Rotatable ring used to set the zero point.
- Lug Back: Provides a mounting point for various stands and fixtures.
The package typically contains the indicator itself.
4. Setup and Mounting
- Unpacking: Carefully remove the dial indicator from its packaging. Inspect for any visible damage.
- Mounting: Secure the dial indicator firmly using its lug back or stem into a suitable stand or fixture. Ensure the mounting is rigid to prevent measurement errors. The stem-bush design provides trouble-free clamping.
- Positioning: Position the indicator so that the measuring spindle is perpendicular to the surface of the workpiece being measured.
- Initial Check: Gently depress and release the spindle to ensure smooth movement and proper return to its resting position.
5. Operating Instructions
The Mitutoyo 2044A Dial Indicator is designed for precise measurement with a 0.01mm graduation and a 0-5mm range.
- Zero Setting:
- Bring the contact point of the measuring spindle into contact with the reference surface or the first point of measurement.
- Rotate the outer bezel until the main pointer aligns with the "0" mark on the dial face.
- Note the reading on the revolution counter if measuring over a larger range.
- Taking a Measurement:
- Move the workpiece or the indicator to the point where the measurement is to be taken.
- Allow the spindle to move freely. The main pointer will indicate the deviation from the zero point.
- Read the value indicated by the main pointer (in 0.01mm increments) and the revolution counter (in mm). For example, if the revolution counter shows '2' and the main pointer shows '50', the reading is 2.50mm.
- Interpreting Readings:
- The dial has a 0-100 reading, where each major division represents 0.1mm and each minor division represents 0.01mm.
- The small revolution counter dial indicates full millimeters, with a range of 0-5mm.
6. Maintenance and Care
Proper maintenance ensures the longevity and accuracy of your dial indicator.
- Cleaning: Wipe the instrument with a clean, soft cloth after each use. For stubborn dirt, use a cloth lightly dampened with isopropyl alcohol. Avoid harsh chemicals.
- Lubrication: The internal mechanisms are factory-lubricated. Do not apply additional lubricants unless specifically instructed by Mitutoyo.
- Storage: Store the dial indicator in its protective case or a clean, dry environment when not in use. Avoid areas with high humidity, dust, or temperature fluctuations.
- Inspection: Regularly inspect the contact point for wear and the spindle for smooth operation.
- Dust Resistance: The design features no through screw-hole on the frame, contributing to high dust-resistance.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Pointer does not return to zero consistently. | Dust or debris in the spindle mechanism; worn spring. | Clean the spindle area. If problem persists, professional service may be required. |
| Spindle movement is stiff or jerky. | Accumulation of dirt; bent spindle. | Clean the spindle thoroughly. If bent, do not attempt to straighten; seek professional repair. |
| Inaccurate readings. | Improper zero setting; worn contact point; instrument not mounted rigidly; temperature fluctuations. | Re-zero the instrument carefully. Check contact point for wear. Ensure rigid mounting. Allow instrument to acclimate to ambient temperature. |
8. Specifications
| Feature | Detail |
|---|---|
| Model Number | 2044A |
| Brand | Mitutoyo |
| Measurement Range | 0-5mm |
| Graduation | 0.01mm |
| Range per Revolution | 1mm |
| Dial Reading | 0-100 |
| Accuracy | +/- 0.0012 mm |
| Design Features | Revolutionary stem-bush design, no through screw-hole for high dust-resistance, greater rigidity in bearing plate. |
| Package Dimensions | 5.12 x 3.27 x 2.32 inches |
| Item Weight | 6.88 ounces |
9. Warranty and Support
For warranty information, technical support, or service inquiries, please contact Mitutoyo customer service directly or visit their official website. Specific warranty terms may vary by region and purchase date.
Manufacturer: Mitutoyo
Date First Available: September 8, 2021
