1. Introduction
Thank you for choosing the Clockwise Tools DCLR-0605 Digital Caliper. This precision measuring instrument is designed for accurate and reliable measurements in various applications, including metalworking, woodworking, machining, 3D printing, and automotive repair. Featuring IP54 water and dust resistance, multi-unit conversion (inch, metric, and fractions), and an extra-large LCD screen, this digital caliper provides ease of use and high-precision results. This manual provides essential information for the proper setup, operation, maintenance, and troubleshooting of your new digital caliper.
2. Product Overview
The Clockwise Tools DCLR-0605 Digital Caliper is constructed from fine-polished stainless steel, ensuring durability and smooth operation. Key features include:
- IP54 Protection: Resistant to water splashes and dust, suitable for various environments.
- Multi-Unit Conversion: Easily switch between inches, millimeters, and fractions.
- High-Precision Measurement: Offers a measuring range of 0-6 inches (150mm) with an accuracy of ±0.001" (0.03mm) and a resolution of 0.0005" (0.01mm).
- Large LCD Screen: An extra-large 3/4" x 2" (20mm x 50mm) display for clear and easy readings.
- RS232 Data Transfer Port: Allows for seamless data transfer to a PC (requires DTCR-02 cable, sold separately).
- Factory-Calibrated: Each unit is calibrated before shipping for immediate use.
2.1. Components
3. Setup
3.1. Battery Installation
Your Clockwise Tools Digital Caliper requires two CR2032 batteries (included). One battery is pre-installed, and a spare is provided.
- Locate the battery compartment cover on the back of the digital display unit.
- Slide the cover open.
- Insert the CR2032 battery with the positive (+) side facing up.
- Close the battery compartment cover securely.
3.2. Initial Cleaning and Calibration
For optimal accuracy, it is recommended to clean the external jaws with a small piece of paper or a paper card every time before use. Your caliper is factory-calibrated and ready for immediate use.
4. Operating Instructions
4.1. Power On/Off
- Press the ON/OFF button to turn the caliper on.
- The caliper features an auto-off function and will shut off after 5-7 minutes of inactivity to conserve battery life.
4.2. Unit Conversion
Press the mm/in/F button to cycle through measurement units: millimeters (mm), inches (in), and fractions (F).
4.3. Zero Setting
To set the zero point at any position:
- Close the jaws completely or position them at your desired zero reference point.
- Press the ZERO button. The display will show "0.00" or "0" for the selected unit.
4.4. Taking Measurements
Use the thumb wheel to smoothly slide the measuring jaws.
- External Measurement: Use the large lower jaws to measure outside dimensions.
- Internal Measurement: Use the small upper jaws to measure inside dimensions.
- Depth Measurement: Use the depth rod at the end of the sliding jaw to measure depths.
- Step Measurement: Use the step face at the end of the fixed jaw to measure step heights.
4.5. Data Transfer
The DCLR-0605 is equipped with an RS232 data transfer port. To transfer measurement data to a PC, you will need the optional DTCR-02 data cable (sold separately). This port is for data transfer only and is not for charging. It is not compatible with regular USB cables.
5. Maintenance
- Cleaning: Regularly clean the measuring surfaces and the beam with a clean, dry, lint-free cloth. Avoid using solvents or harsh chemicals. As noted in the setup section, use a small piece of paper or paper card to clean the external jaws before each use for accurate results.
- Battery Replacement: When the display becomes dim or erratic, replace the CR2032 batteries. Ensure proper polarity during installation.
- Storage: Store the caliper in its protective case when not in use to prevent damage from dust, moisture, and impacts.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Display is blank or dim. | Low or dead battery. | Replace the CR2032 batteries. |
| Inaccurate or inconsistent readings. | Dirt or debris on measuring surfaces; improper zero setting; worn battery. | Clean jaws and beam thoroughly. Re-zero the caliper. Replace battery if necessary. Ensure proper technique (e.g., applying consistent pressure). |
| Display shows a small non-zero value when jaws are closed. | Minor manufacturing tolerance or debris. | This is a common characteristic of some digital calipers. Simply press the ZERO button with the jaws closed to reset to zero before taking measurements. |
| Caliper does not turn on. | Battery not installed correctly; dead battery. | Check battery orientation. Replace batteries. |
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | DCLR-0605 |
| Measuring Range | 0-6 inches (0-150mm) |
| Accuracy | ±0.001" (0.03mm) |
| Resolution | 0.0005" (0.01mm), 1/128" |
| Repeatability | 0.0005" (0.01mm) |
| Protection Rating | IP54 (Water and Dust Resistant) |
| Material | Fine-polished Stainless Steel |
| Display | Extra-large LCD (3/4" x 2" / 20mm x 50mm) |
| Battery Type | 2 x CR2032 (included) |
| Data Output | RS232 Port (requires DTCR-02 cable) |
| Auto-Off Function | Yes (5-7 minutes) |
| Product Dimensions | 9.25"L x 0.75"W (Caliper only) |
8. Warranty and Support
Your Clockwise Tools DCLR-0605 Digital Caliper comes with a warranty. Please refer to the Warranty Card included in your product packaging for specific terms and conditions. For technical support, inquiries, or assistance with your product, please contact Clockwise Tools customer service.
Included in the Box:
- Clockwise Tools DCLR-0605 Digital Caliper
- One installed 3V CR2032 battery
- One spare 3V CR2032 battery
- User Guide
- Protective Case
- Warranty Card
