Frequently Asked Questions: TONE T2DT30H Electronic Torque Wrench (6–30 N·m):

1. What is the TONE T2DT30H and where is it used?

The T2DT30H is a ratchet-type digital torque wrench from TONE’s Digitorqon TDT series, designed to precisely apply and measure torque. It’s widely used in automotive assembly, industrial machinery, electronics manufacturing, maintenance work, and quality-control inspections.

2. What torque range, resolution, and accuracy does it offer?

Torque adjustment range: 6 to 30 N·m

Minimum graduation (display resolution): 0.3 N·m

Accuracy: ±3 % of set torque value

3. What are its dimensions, weight, and operating conditions?

Overall length: 221 mm

Head width: 22.5 mm

Drive size (insertion angle): 6.35 mm (1/4 inch)

Weight (without batteries): approx. 360 g

Operating temperature: –10 °C to 60 °C

Storage temperature: –20 °C to 70 °C

Relative humidity: ≤ 90 % (non-condensing)

4. What power source does it use and how long does it run?

Power: two AAA alkaline batteries (not included)

Continuous operation: up to 48 hours (with LED and buzzer active)

Standby mode: up to 6 months

5. Which drive sockets are compatible?

It uses a 1/4 inch (6.35 mm) square drive, compatible with standard 1/4 inch sockets, extensions, and bits.

6. What measurement modes are available?

Track mode: continuous real-time torque display.

Peak mode: captures and holds the maximum torque reached.

You can switch modes instantly via the front-panel buttons.

7. How does it indicate when the preset torque is reached?

Upon reaching the set torque, the wrench will:

Flash a green LED (with intermittent red flashes at higher alert).

Emit an audible buzzer tone.

Display the reached value on the LCD.

8. How many readings can it store, and how do I retrieve data?

Internal memory: up to 250 individual readings.

Data export: via USB cable to PC.

File format: CSV for easy import into spreadsheets or QC software.

9. Can I change torque units?

Yes. The T2DT30H supports:

N·m (Newton-meters)

lbf·ft (pound-feet)

lbf·in (pound-inches)

kgf·cm (kilogram-force centimeters)

Switch units on the device or through the PC configuration software.

10. How do I set my target torque value?

Press and hold the “SET” button to enter configuration.

Use “▲” and “▼” buttons to adjust the numeric value.

Confirm by pressing “SET” again.

You’ll hear a confirmation beep and see the target displayed.

11. What is the process for replacing batteries?

Slide off the rear battery cover.

Remove old AAA cells, observing correct polarity.

Insert two fresh AAA alkaline batteries.

Replace cover until it clicks securely.

12. How should I care for and maintain the wrench?

Wipe the handle and head with a dry, lint-free cloth.

Avoid solvents, oil, or corrosive cleaners.

Inspect for physical damage before each use.

Store in its protective case, away from moisture and extreme temperatures.

Have the wrench recalibrated annually or after 10 000 uses.

13. What safety precautions should I follow?

Never exceed the 30 N·m maximum torque.

Do not use if LEDs fail or buzzer is weak—replace batteries first.

Avoid sudden impacts or drops, which may damage the sensor.

Do not use as a breaker bar or hammer.

14. What warranty and support are provided?

Standard manufacturer’s warranty: 12 months from date of purchase.

Technical support: contact QTE Technologies (qtetech.com/en).

15. What comes in the package?

T2DT30H digital torque wrench

Instruction manual

USB cable for data transfer

CD (or download link) with PC configuration software

Protective carrying case

Warranty card

16. Where can I download software and firmware updates?

Visit the official TONE Tool website’s “Downloads” section. Enter the model number (T2DT30H) to access the latest PC software, firmware, and user guides.

17. How often should I have the wrench recalibrated?

For optimal accuracy:

Recalibrate annually, regardless of usage.

Or whenever the wrench accumulates 10 000 tightening cycles.

After any suspected drop or shock event.