1. Introduction
The SINO SDS200S is a high-performance 3-axis LCD Digital Readout (DRO) system designed for precision measurement and control in various machining applications, including milling, lathe, turning, and boring machines. Featuring a full touch screen interface and a durable metal cover, the SDS200S offers intuitive operation and robust performance. This manual provides essential information for the setup, operation, maintenance, and troubleshooting of your SDS200S DRO.
2. Package Contents
Please verify that all items listed below are included in your package:
- 1 x SDS200S Digital Readout Display
- 1 x User Manual
- 1 x Power Cable (AU, EU, US, UK type, depending on region)
- Mounting Accessories (small connectors/hardware)



3. Features and Advantages
The SDS200S DRO is equipped with advanced features to enhance precision and ease of use in machining operations:
- Multi-Language Support: Supports 5 languages including Chinese, English, German, French, and Spanish.
- Touch Screen Interface: Simple and intuitive operation through a full touch screen.
- Durable Construction: Features a robust metal cover and durable front panel membrane with tactile switches.
- Large LCD Display: Provides clear and easy-to-read measurements.
- Advanced Machining Functions: Includes PCD (Pitch Circle Diameter) calculation, line of holes, 200 zero memory, radius/diameter display, tool offsets, Arc Calculation, circular equally dividing holes, drilling hole along an oblique line, Angular Surface Processing, Taper Measurement, and Digital Filter Function.
- High Input Frequency: Supports input frequencies up to 5MHz with A/B signals.
- 16/32-bit Calculator: Utilizes advanced 16 and 32-bit calculator technology for precise computations.



4. Specifications
| Feature | Specification |
|---|---|
| Model Number | SDS200S |
| Brand Name | SINO (HYMSEANN) |
| Number of Axis | 3 Axis |
| Screen Type | Big LCD Display, Full Touch Screen |
| Input Voltage | AC80V-240V / AC110V/220V 50/60Hz |
| Input Signal | TTL |
| Material | Metal Cover |
| Supported Languages | Chinese, English, French, German, Spanish |
| Certification | CE, RoHS |
| Application | Milling, Lathe, Turning, Boring Machine etc. |
| Warranty | 2 years |
| Battery Included | No |

5. Setup
Follow these steps to set up your SINO SDS200S DRO:
- Unpacking: Carefully remove all components from the packaging. Inspect for any damage.
- Mounting: Securely mount the SDS200S display unit to your machine using appropriate brackets and fasteners (not included, typically machine-specific). Ensure it is positioned for optimal viewing and touch interaction.
- Connecting Linear Scales: Connect your linear scales to the corresponding DB9 ports on the rear of the SDS200S. The unit typically supports up to 3 axes. Ensure connections are firm.
- Power Connection: Plug the provided power cable into the AC inlet on the rear of the DRO unit, then connect it to a suitable power outlet (AC80V-240V).
- Initial Power On: Flip the red power switch on the rear panel to turn on the unit. The LCD display should illuminate.
- Language Selection: Upon first power-on or after a reset, you may be prompted to select your preferred language from the 5 available options.

6. Operating Instructions
The SDS200S offers a wide range of functions accessible via its touch screen. For detailed operation of each function, please refer to the comprehensive user manual included in your package.
6.1. Basic Functions
- 200 Points Auxiliary Zero Position: Store and recall up to 200 auxiliary zero points.
- Mid-split Function: Easily find the center point of a workpiece.
- "mm/inch" Conversion: Switch between metric and imperial units.
- Radius/Diameter Switch: Toggle between radius and diameter display for lathe applications.
- Segmented Error Compensation: Compensate for linear errors in specific segments of the scale.
- Linear Error Compensation: Apply overall linear error compensation.
- Power Interruption Memory: Retains current position and settings after power loss.
- Sleep Switch: Power-saving mode.
- Mathematics Calculation: Perform basic calculations directly on the DRO.
- RS-232-C Interface (Option): For data output or connection to other devices.
6.2. Machining Functions
- PCD Circumferential Division: For milling machines and spark testers, to drill holes on a pitch circle.
- Involute Chamber Machining: Specific function for milling machines.
- Bevel Machining/Angular Surface Processing: For creating angled surfaces on milling machines.
- N3 Function: A specialized function for milling machines.
- Diagonal Boring: For boring operations at an angle on milling machines.
- R-arc Function: For machining arcs on milling machines.
- Taper Measuring Function: For measuring tapers on lathes.
- 200-Tool Library: Store and manage up to 200 tool offsets for lathe applications.
- Anti-dithering Function: For stable readings during grinding machine operations.


7. Maintenance
Proper maintenance ensures the longevity and accuracy of your SDS200S DRO:
- Cleaning: Regularly wipe the display and exterior with a soft, dry cloth. For stubborn dirt, use a slightly damp cloth with mild soap, then dry thoroughly. Avoid abrasive cleaners or solvents.
- Screen Care: The touch screen is sensitive. Avoid using sharp objects or excessive force. Clean with a screen-specific cleaner if necessary.
- Environmental Conditions: Operate and store the unit in a clean, dry environment, away from excessive dust, moisture, and extreme temperatures.
- Connections: Periodically check all cable connections (power and linear scales) to ensure they are secure and free from damage.
8. Troubleshooting
If you encounter issues with your SDS200S DRO, try the following:
- No Display/Power: Ensure the power cable is securely connected and the power switch on the rear is in the 'ON' position. Check the power outlet.
- Incorrect Readings: Verify that linear scales are properly connected and securely mounted. Check for any physical damage to the scales or cables. Ensure correct parameters are set in the DRO for your specific scales.
- Unresponsive Touch Screen: Try restarting the unit. If the issue persists, ensure the screen is clean and free from debris.
- Software/Firmware Issues: If you suspect a software bug or need a firmware update, refer to the official user manual or contact customer support.
9. User Tips
- Linear Scales: The SDS200S is a display unit. Linear scales (slim, magnetic, or induction) are typically purchased separately and are essential for its operation. Ensure compatibility when selecting scales.
- Application Versatility: This DRO is highly versatile and suitable for a wide range of machine tools, including milling, lathe, turning, and boring machines. Explore its various machining functions to optimize your workflow.
- Refer to Manual: For in-depth understanding and utilization of all advanced functions, always consult the detailed user manual provided with the product.
10. Warranty and Support
The SINO SDS200S Digital Readout comes with a 2-year warranty from the date of purchase. This warranty covers manufacturing defects and malfunctions under normal use. For warranty claims, technical support, or any questions not covered in this manual, please contact your seller or the manufacturer directly. Keep your purchase receipt as proof of purchase.
For further assistance, please refer to the full user manual or contact customer service.
