Torque Calibration - Snap-On ControlTech Micro Calibration Procedure

5. Use the Down key to highlight the CHECK TORQUE menu selection:
CAL TORQUE
CAL ANGLE
CHECK TORQUE
6. Press the Enter key to display the Cal Check screen:
240.0
7. Exercise the wrench 5 times to rated capacity in the CW direction
8. Remove the wrench from the tester and press the Power key on the wrench. Press
the F1 key on the torque indicator to zero tare the transducer. Be sure the torque
wrench is not on the loader during the zero tare process.
9. Apply clockwise torque until the wrench indicates exactly 20% of full scale.
10. Verify the torque tester reads ±2% of the 20% value.
11. Apply clockwise torque until the wrench indicates exactly 60% of full scale.
12. Verify the torque tester reads ±2% of the 60% value.
13. Apply clockwise torque until the wrench indicates exactly 100% of full scale.
14. Verify the torque tester reads ±2% of the 100% value.
15. Exercise the wrench 5 times to rated capacity in the CCW direction.
16. Remove the wrench from the tester and press the Power key on the wrench. Press
the F1 key on the torque indicator to zero tare the transducer. Be sure the torque
wrench is not on the loader during the zero tare process.
17. Apply counter-clockwise torque until the wrench indicates exactly 20% of full scale.
18. Verify the torque tester reads ±3% of the 20% value.
19. Apply counter-clockwise torque until the wrench indicates exactly 60% of full scale.
20. Verify the torque tester reads ±3% of the 60% value.
21. Apply counter-clockwise torque until the wrench indicates exactly 100% of full
scale.
22. Verify the torque tester reads ±3% of the 100% value.
23. Press the Enter key to exit the CAL CHECK screen.
Note: If the wrench "As Found" condition is within specification, the calibration
date can be updated by skipping to the SET CALIBRATION DATE section
below. Otherwise, the calibration date will be updated by during the
TORQUE CALIBRATION procedure.

TORQUE CALIBRATION

In order to calibrate the electronic torque wrench, a horizontal bench top hand-crank
loader must be used which has a minimum accuracy of ± 0.5%.
The calibration should be performed by an Authorized Snap-on Repair Center or
Certified Calibration Laboratory.
- Make sure the torque tester is in the "PEAK MODE".
- Note the ratchet head dimension if interchangeable.
1. From the main screen, press and hold the Enter key for three seconds. The User
choices menu will be displayed.
CAL CHECK
IN-LB
ControlTech
3
TM
Micro Wrench