1. Introduction
This manual provides detailed instructions for the safe and effective use of the Tohnichi CPT100X15D-G-SET Digital Torque Wrench. This precision instrument is designed for accurate torque measurement and tightening applications, featuring digital display, multiple unit conversions, and data storage capabilities.
2. Safety Information
Always observe the following safety precautions to prevent injury and damage to the tool:
- Read and understand all instructions before operating the torque wrench.
- Wear appropriate personal protective equipment, such as safety glasses.
- Do not exceed the maximum torque capacity of the wrench.
- Ensure the workpiece is securely fastened before applying torque.
- Keep the tool clean and free from oil, grease, or other contaminants.
- Do not use the wrench if it is damaged or malfunctioning.
- Store the wrench in its protective case when not in use.
3. Package Contents
Verify that all items are present in the package:
- Tohnichi CPT100X15D-G-SET Digital Torque Wrench
- Plastic Storage Case
- Certificate of Calibration
- 2 x AA Batteries
- Ratchet Head (1/2 inch square drive)
Figure 1: The Tohnichi CPT100X15D-G-SET Digital Torque Wrench, along with its accessories, neatly stored in its durable plastic case.
4. Setup
4.1 Battery Installation
- Locate the battery compartment cover on the handle of the torque wrench.
- Open the cover and insert two AA batteries, ensuring correct polarity (+/-).
- Close the battery compartment cover securely.
4.2 Attaching the Ratchet Head
The CPT100X15D-G-SET comes with a 1/2 inch square drive ratchet head. Align the ratchet head with the drive mechanism on the wrench body and push firmly until it clicks into place. Ensure it is securely attached before use.
5. Operating Instructions
5.1 Power On/Off
- To power on, press the POWER button. The display will illuminate.
- To power off, press and hold the POWER button until the display turns off. The wrench will automatically power off after a period of inactivity to conserve battery life.
5.2 Unit Conversion
The wrench supports multiple units of measure. Press the UNIT button to cycle through the available units:
- Nm (Newton-meters)
- kgf.cm (kilogram-force centimeters)
- kgf.m (kilogram-force meters)
- lbf.in (pound-force inches)
- lbf.ft (pound-force feet)
5.3 Setting Target Torque Values
The CPT100X15D-G-SET allows you to set up to 10 different target torque values. Use the keypad to navigate and set your desired torque. The display will show the current setting.
Figure 2: Digital display showing a torque value and visual indicators for reaching the target torque.
5.4 Applying Torque
- Select the desired target torque value and unit.
- Attach the appropriate socket or accessory to the ratchet head.
- Place the socket onto the fastener.
- Apply smooth, steady force to the wrench handle. The digital display will show the real-time torque value.
- When the target torque is reached, the wrench will provide a visual and/or audible indication (refer to specific model features for exact indicators).
- Stop applying force immediately once the target torque is achieved.
5.5 Data Storage and Download
The wrench can store up to 50 torque data points. These stored data points can be downloaded via the RS232 port. A separate RS232 cable (#585) is required for data transfer and is sold separately.
6. Maintenance
- Cleaning: Wipe the wrench with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Storage: Store the wrench in its plastic storage case in a dry, temperature-controlled environment when not in use. Remove batteries if storing for extended periods to prevent leakage.
- Calibration: For continued accuracy, regular calibration by an authorized service center is recommended. Refer to the Certificate of Calibration for details.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Wrench does not power on | Dead or incorrectly installed batteries | Replace batteries with new AA batteries, ensuring correct polarity. |
| Inaccurate readings | Wrench needs calibration or is damaged | Contact an authorized service center for calibration or repair. Do not attempt to repair yourself. |
| Display error message | Internal malfunction | Power off the wrench, wait 10 seconds, then power on again. If the error persists, contact support. |
8. Specifications
| Feature | Detail |
|---|---|
| Model Number | CPT100X15D-G-SET |
| Torque Ranges | 20.0~100.0 Nm, 200~1000 kgf.cm, 2.00~10.00 kgf.m, 200~880 lbf.in, 15.0~73.0 lbf.ft |
| Accuracy | +/-3% of indicated value |
| Units of Measure | Nm, kgf.cm, kgf.m, lbf.in, lbf.ft |
| Data Storage | Up to 50 data points |
| Data Output | RS232 port (cable #585 sold separately) |
| Power Source | 2 x AA Batteries |
| Material | Plastic |
| Item Length | 20 inches |
| Item Weight | 0.85 kg |
| Head Style | Fixed Square (1/2 inch drive) |
| Operation Mode | Electric |
9. Warranty and Support
Tohnichi products are manufactured to high-quality standards. For warranty information, technical support, or service, please refer to the documentation included with your product or contact Tohnichi America directly. Keep your proof of purchase for warranty claims.
For further assistance, visit the official Tohnichi website or contact their customer service department.
