1. Introduction
This manual provides essential information for the safe and effective use of the Dial Indicator Probe, Model A-5003-0059. This precision instrument is designed for accurate measurement and inspection tasks, particularly in conjunction with Coordinate Measuring Machines (CMMs) and other metrology equipment. Please read this manual thoroughly before operation to ensure proper handling, maintenance, and to prevent damage to the probe or injury to the user.
2. Safety Information
- Always handle the probe with care to avoid dropping or impacting it, which can affect its calibration and accuracy.
- Ensure the probe is securely mounted before use to prevent detachment during operation.
- Do not attempt to disassemble the probe. Internal components are precisely calibrated and user disassembly will void any potential warranty and may damage the device.
- Keep the probe clean and free from dust, debris, and corrosive substances.
- Store the probe in its protective casing when not in use to prevent damage.
3. Product Overview
The A-5003-0059 Dial Indicator Probe is a high-precision stylus designed for accurate contact measurements. Its robust construction ensures durability and stable performance in various industrial applications.
3.1 Components and Features
- Probe Body: Constructed from steel, providing strength and stability.
- Ceramic Pole: Lightweight yet strong, offering built-in crash protection and suitable for non-magnetic/non-conductive environments like EDM processes.
- Ball Head: A Ø3.0mm ball tip, typically made of ruby, known for its light weight, wear resistance, and temperature stability.
- M3 Thread: Standard M3 thread for secure attachment to compatible CMM heads or dial indicators.

Figure 1: Overview of the A-5003-0059 Dial Indicator Probe.

Figure 2: Detailed view of the M3 threaded end for attachment.

Figure 3: Technical drawing illustrating the dimensions and materials of the probe (Unit: mm).
4. Setup
- Unpacking: Carefully remove the probe from its packaging. Inspect for any visible damage.
- Mounting:
- Identify the M3 threaded port on your CMM head or dial indicator.
- Gently screw the probe's M3 thread into the port.
- Tighten securely by hand. Avoid over-tightening, which can damage the threads or the probe.
- Calibration (if applicable): Refer to your CMM or dial indicator's manual for specific instructions on probe calibration. Proper calibration is crucial for accurate measurements.
5. Operating Instructions
The A-5003-0059 probe is designed to be used with compatible measuring equipment. Its operation is primarily dictated by the host device (CMM, dial indicator, etc.).
- Ensure the probe is clean before each use to prevent contamination from affecting measurements.
- Position the probe carefully to make contact with the surface to be measured. Avoid forceful impacts.
- Allow the probe to settle before taking a reading to ensure stability.
- When measuring delicate surfaces, adjust the contact force settings on your measuring equipment if available.
6. Maintenance
Proper maintenance extends the life and maintains the accuracy of your probe.
- Cleaning:
- After each use, gently wipe the probe body and ball tip with a clean, lint-free cloth.
- For stubborn dirt, a small amount of isopropyl alcohol can be used on the cloth. Avoid harsh chemicals or abrasive materials.
- Storage: Store the probe in a dry, dust-free environment, preferably in its original protective case or a dedicated probe rack.
- Inspection: Periodically inspect the ball tip for signs of wear, chipping, or contamination. A damaged tip will compromise measurement accuracy.
7. Troubleshooting
This section addresses common issues that may arise during the use of the probe.
| Problem | Possible Cause | Solution |
|---|---|---|
| Inaccurate Readings |
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| Probe Detaches During Use |
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8. Specifications
| Model | A-5003-0059 |
| Material | Steel body, Ceramic pole, Ruby ball head |
| Thread | M3 |
| Ball Head Diameter | Ø3.0mm |
| Length | 50 mm (1.9685 inches) |
| Product Dimensions | 2.36 x 0.39 x 0.39 inches |
| Item Weight | 0.282 ounces |
| Manufacturer | JSDZ |
9. Warranty and Support
For information regarding warranty coverage, technical support, or replacement parts, please contact the seller or manufacturer directly. Keep your purchase receipt as proof of purchase.
Seller: JShomeDZ
Manufacturer: JSDZ