Tohnichi Digital Torque screwdriver Tester

Tohnichi Digital Torque screwdriver Tester

Features
High-accuracy digital torque screwdriver tester with loading device eliminates measurement errors.
Digital type torque screwdriver tester eliminates visual reading errors.
The loading device keeps stable measuring conditions to avoid reading errors.
The measuring range is wide and applicable for various types of torque drivers.
Comes with Pass/Fail judgment feature. Judgment results are shown in three colors (white/red/blue), for easy result recognition.
Power source: AC100V-240V. Battery pack is available as an option.
We have experience manufacturing products with American units of measurement (lbf, in, etc.) for Japan's aircraft manufacturing industry and for export to the U.S., and products with metric units of measurement (kgf, cm, etc.) for export to other parts of the world.
Excel Receiver software is a data input tool for Excel® data management. It can be downloaded for free. *Note: Excel® is a registered trademark of the Microsoft Corporation.

Functions and Operation
RUN MODE
Torque value increases as torque is applied, and decreases and returns to 0 as it is released. mark appears above RUN. This mode is used when measuring a direct-reading torque screwdriver or calibrating TDT3-G itself. Push MD key to switch to PEAK MODE.

PEAK HOLD MODE
Torque value increases as torque is applied, and the displayed value stays at the peak value after releasing load. t mark appears above PEAK on the display panel. This mode is used mainly for measuring click-type torque screwdrivers. Push MD key to switch to RUN MODE.

Selecting Upper and Lower Limit Value
Select pre-registered upper/lower limit value.
(1) Keep pushing MD key for 2 seconds and the display proceeds to upper/lower limit selection.
(2) Using st key, select upper and lower limit value.
(3) Push STAT key to decide upper/lower limit value and returns to measuring condition. If you push MD key, it returns to measuring condition with previous upper/lower limit value settings. (For setting upper/lower limit value, refer to chapter 6 Various Settings.)

OK/NG Judgment/Data Memory
As MEMORY/RESET button is pushed (or AUTO MEMORY/RESET function operates), judgment will be conducted, and measured data will be saved up to 1000pc. When judgment is OK, the digital display turns blue for 0.5 seconds. When judgment is LO/HI, the digital display
turns red for 1 second. Judgment will not be conducted when upper/lower limit value is set to 0. Judgment will be conducted with the following conditions.
HI: Upper limit value < Measured value
OK: Lower limit value ≤ Measured value ≤ Upper limit value
LO: Measured value < Lower limit value

Auto Memory/Reset
In Auto Memory/Reset function, judgment will be conducted 0.1-5.0 seconds after releasing load (PEAK HOLD) and the measured value is saved automatically. The display proceeds to the next counter. When the judgment is OK, the digital display turns blue for 0.5 seconds. When the judgment is LO/HI, the digital display turns red for 1 second. When upper/lower limit value is set to 0, judgment will not be conducted.

Deletion of Data
(1) Delete one data Select the data you want to delete by using st key. Push C key to delete the data.
(2) Delete a range of data Select the last counter of the data range you want to delete by using st key. Push STAT key, the “Stt” appears on the display. Then select the first counter of the data range you want to delete by using st key and push STAT key again. While the display shows “n”, “HI”, “Lo” or “Av”, push STAT key and C key at the same time to delete the selected range of data.
(3) Delete all data While pushing MEMORY/RESET switch, turn on the power. “CLEAr” appears on the display and all the data will be deleted.

Measuring a Torque Screwdriver
Operating Temperature
Measuring should be conducted at temperature in 18-28°C range. Temperature fluctuation should be within ±1°C.

7-1-2. Check the Following before Calibrating the Torque Screwdriver.
(1) Torque screwdriver tester should be set at stable working table.
(2) For calibration of direct reading torque screwdriver, make sure to read the value from upright position to avoid reading errors by angle.
(3) For calibration of click-type torque screwdriver (RTD/LTD), apply training torque at the maximum value for 5 times without measuring prior to the official calibration. Do the same training for the other direction as well.
(4) For calibration of direct reading torque screwdriver (FTD, STC), apply training torque to the max torque value once and release the torque. Then set the digital display back to zero. Repeat the same procedure for the other direction as well.

Attention for Measuring Torque Screwdrivers
(1) For measuring click-type torque screwdrivers (RTD/LTD), apply torque slowly and evenly. Except for preset type (such as RNTD/NTD), click-type torque screwdrivers (such as RTD/LTD) must measure from the lower point, and adjust to respective torque value.
(2) For measuring direct-reading type torque screwdriver (FTD/STC, etc), use torque screwdriver tester to apply torque to the measurement value. If the applied torque exceed the measurement point, it needs to be redone.

How to Measure
(1) Set TDT3-G on stable work table free of vibration.
(2) Connect AC adapter to the power jack on side of TDT3-G. Make sure the power is switched off, then connect the adapter to power source.
(3) Turn on the power. (Leave it on for 30 minutes or more.)
(4) Conduct all settings. Refer to Chapter 6 Various Settings for Auto memory/Reset and other communication settings.
(5) Set the measuring mode based on the torque screwdriver to measure. Click type torque screwdriver (RTD/LTD): Peak mode (PEAK)
(6) Conduct auto zero adjustment. Remove the torque screwdriver from the main body and push C to activate auto zero adjustment.
(7) Set the bit according to the measuring model.(See below table to see which bit suit your screwdriver.) At purchase, TDT3-G package includes STA loading device and the standard bit.
(8) Check the measured value of the torque screwdriver.
(9) Put the torque screwdriver through the loading device and fix it by the clamp tool.
(10) Apply torque by loading device until the torque screwdriver clicks (operates).
(11) Upon clicking of the torque screwdriver, release torque. In manual memory mode, push MEMORY/RESET switch to save the data, then it resets.In auto memory/reset mode, it saves data upon releasing the torque (2% of the max capacity), then send one counter and reset.
(12) Repeat (10) (11) process to measure.

External Output
Printer Output
Connect TDT3-G and the printer (EPP16M2) using the cable (No. 382). Set the communication output format to “Prn” and other communication settings compliant with printer settings (Refer to chapter 6 for details.)
* Do not use the cable for printer and the USB cable at the same time.

Communication settings of EPP16M2
Data format : Compliant with RS232C
Data transmission : Start-top synchronization
Baud rate : 2400bps
Data length : 7bit
Stop bit : 1bit
Parity : None

(1) Printing one by one
After measurement, press Memory/Reset key to print the measured data. In this mode, the results of statistical processing are not printed. In Auto Memory/Reset mode, printing starts automatically.

(2) Printing a certain range of data Using s or t key, select the last count value in the print range and press STAT key, then “ST” will be displayed. Using t or t key, select the first count value in the print range and press STAT key. Then, press s key while “n” is displayed. The measured value, sampling quantity “n”, maximum value “MAX”, minimum value “MIN” and mean value “x” of the selected range will be printed out.

(3) Printing only statistical processing value Using s or t key, display the last count value in the print range and press STAT key. Then, “ST” will be displayed. Using s or t key, display the first count value in the print range and press STAT key. Press t key while “n” is displayed. Only the sampling quantity “n”, maximum value “MAX, minimum value “MIN” and average value “x” of the selected range will be printed out.

PC Output
Connect TDT3-G and external device by cable (No. 383 or No. 385). Set the communication output format to “PC” and set it in line with other communication settings. (Refer to Chapter 6 for details.)
* Do not use RS232C cable and USB cable at the same time.
* To use No. 385 cable, the screwdriver needs to be installed. Use the CD-R attached on No. 385 cable.

Communication setting
Data format : RS232C compliant
Communication method : Asynchronous serial communication
Baud rate : 2400/4800/9600/19200bps
Data length : 7bit/8bit
Stop bit :1bit
Parity : None/Even/Odd

(1) Printing one by one Push Memory/Reset switch or automatically print by Auto memory/Reset function.
(2) Printing all at one time Set the last counter of the data range you wish to print out and push MD key. It shows “Stt”. Use st key to select the first counter of the printing range and push MD key. When it shows “n”, push STAT to start printing all data.

Calibration Procedure
(1) Precautions for use
1) Be careful not to drop weights on your foot.
2) Place a weight gently.
3) Start calibration at the minimum value.
4) Before calibration, secure the main unit in fixed position to prevent it from moving during calibration.
5) Hook wire on the calibration lever securely.

Calibration procedure
1) Place TDT3-G on the measurement table in a horizontal position.
2) Turn on the power of TDT3-G. (After the power is turned on, leave the unit as it is for 30 minutes or more for stabilization.)
3) Set TDT3-G in RUN mode.
4) Insert the square drive of the calibration lever into the TDT3-G sensor portion so that the calibration lever is leveled.
5) Hook the wire on the calibration lever, and press "C" key on TDT3-G to make zero adjustment.
6) Refer to the table on next page (Weights Information for TDT3-G Calibration), and check the weight. Place weight on the TDT3-G accordingly, and proceed calibration.

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