1. Introduction
This manual provides detailed instructions for the proper use, setup, operation, maintenance, and troubleshooting of the AMTAST 0.0001" Dial Indicator, Model 201-0068. This precision instrument is designed for accurate measurement in various industrial and machining applications.
The AMTAST Dial Indicator features a large 38mm (1.5") dial for clear readability, a high-quality brass body for anti-magnetic properties, and jewel bearings for enhanced durability and shock resistance. It is equipped with carbide ball contact points and a pivot ball bearing system for smooth and precise operation.
2. Product Overview
2.1 Components
The AMTAST 0.0001" Dial Indicator typically includes the following components:
- Dial Indicator Unit
- Carbide Ball Contact Point
- Protective Storage Case
- Additional accessories (if included)
Figure 2.1: AMTAST 0.0001" Dial Indicator with its protective case and accessories.
Figure 2.2: Close-up view of the 38mm (1.5 inch) diameter dial indicator, highlighting the inner wear-resistant bearing housings made of 7 jewels and the durable brass main body for anti-magnetic properties.
Figure 2.3: High-precision clear scribing dial with detailed specifications including Dial: 38mm/1.5", Graduation: 0.0001", Range: 0.008", Accuracy: 0.00015, Scale: 0-40-0, Bearing: Pivot ball bearing, Contact Point: Carbide ball contact point, Dovetails: Tree dovetails.
3. Specifications
| Parameter | Value |
|---|---|
| Model Number | 201-0068 |
| Measuring Range | 0.008 inches |
| Graduation | 0.0001 inches |
| Accuracy | 0.00015 inches |
| Dial Diameter | 38mm (1.5 inches) |
| Scale | 0-40-0 (Balanced Dial) |
| Body Material | Brass |
| Bearings | 7 Jewels, Pivot Ball Bearing System |
| Contact Point | Carbide Ball |
| Dovetail Groove | Tree-shaped |
| Dimensions (L×W×H) | 3.9×2.6×1.4 inches (10×6.5×3.5 cm) |
4. Setup
4.1 Unpacking and Inspection
- Carefully remove the dial indicator and all accessories from the packaging.
- Inspect all components for any signs of damage during transit. If any damage is found, contact customer support immediately.
- Verify that all listed components are present.
4.2 Mounting the Dial Indicator
The dial indicator features a tree-shaped dovetail groove for secure mounting. It is compatible with various machine tools, equipment, and other measuring devices that support dovetail mounting.
- Ensure the mounting surface is clean and free of debris.
- Slide the dovetail groove of the indicator onto the corresponding mounting fixture.
- Secure the indicator firmly using the locking mechanism of your mounting fixture. Ensure it is stable and does not wobble.
- For applications requiring a magnetic base, ensure the base is clean and the ON/OFF control is engaged for a stable hold.
Figure 4.1: The dial indicator is suitable for various comparative measurements in workshops and inspection rooms, often used with a magnetic base for stability.
5. Operating Instructions
5.1 Basic Measurement Principles
The AMTAST Dial Indicator measures small linear distances and is primarily used for comparative measurements, such as checking for flatness, parallelism, concentricity, and runout. It measures the deviation from a reference surface.
5.2 Taking a Measurement
- Prepare the Workpiece: Ensure the workpiece surface is clean and free of burrs or contaminants that could affect accuracy.
- Set the Reference Point: Position the carbide ball contact point against a known reference surface or a master workpiece.
- Zero the Dial: Gently rotate the outer bezel of the dial indicator until the '0' mark aligns with the needle. This establishes your reference point.
- Perform Measurement: Move the dial indicator or the workpiece to measure the desired feature. The needle will move to indicate the deviation from the zero reference.
- Read the Dial: The large 0-40-0 balanced dial allows for easy reading of deviations. Each major division represents 0.0001 inches.
Figure 5.1: The dial indicator provides accurate and reliable measurements, being both sturdy and sensitive for precise testing.
5.3 Important Considerations
- Always ensure the contact point is perpendicular to the surface being measured for the most accurate readings.
- Avoid applying excessive force to the contact point, as this can damage the internal mechanism or affect accuracy.
- Perform measurements in a stable environment, free from vibrations or significant temperature fluctuations.
6. Maintenance
6.1 Cleaning
- After each use, wipe the dial indicator clean with a soft, lint-free cloth.
- For stubborn dirt or grease, use a small amount of instrument cleaning solution or isopropyl alcohol on the cloth. Avoid harsh chemicals.
- Ensure no liquid enters the internal mechanism of the indicator.
6.2 Storage
- Store the dial indicator in its original protective case when not in use.
- Store in a dry, dust-free environment, away from direct sunlight and extreme temperatures.
- Avoid storing the indicator in areas with high humidity or corrosive fumes.
6.3 Calibration
Regular calibration by a qualified professional is recommended to ensure continued accuracy, especially for critical applications. The frequency of calibration depends on usage and environmental conditions.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Needle does not move smoothly or sticks. | Dust or debris in mechanism; lack of lubrication; minor damage. | Clean the contact point and stem. If problem persists, professional servicing may be required. Do not attempt to disassemble the unit unless qualified. |
| Inaccurate or inconsistent readings. | Improper mounting; workpiece not clean; temperature fluctuations; worn contact point; internal mechanism issue. | Ensure secure mounting. Clean workpiece. Allow indicator to acclimate to room temperature. Inspect contact point for wear. If issues persist, consider professional calibration or repair. |
| Dial bezel is difficult to rotate. | Dirt or debris under the bezel. | Gently clean around the bezel. Avoid forcing rotation. |
For issues not listed here or if troubleshooting steps do not resolve the problem, please contact AMTAST customer support.
8. Warranty and Support
8.1 Warranty Information
AMTAST products are manufactured to high-quality standards. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official AMTAST website. Keep your purchase receipt as proof of purchase.
8.2 Customer Support
If you have any questions, require technical assistance, or need to report a problem with your AMTAST Dial Indicator, please contact our customer support team. Contact information can typically be found on the AMTAST website or on the product packaging.
AMTAST Official Website: AMTAST Store on Amazon
