Torq-Tronics 2
® /
Owners Manual
7:
Making the Most of the Torq-Tronics 2
Calibration standards require that torque wrenches be calibrated, on a tester that has 4X
greater accuracy than does the wrench. If the wrench being calibrated has an accuracy
factor of +/- 2% a calibration unit must have a minimum accuracy factor of +/-.5%.
The Torq-Tronics 2 has an accuracy factor of +/- 0.5% meaning it can calibrate torque
wrenches with an accuracy factor of +/-2%. It is also capable of calibrating wrenches
with a lesser accuracy such as +/- 6%.
To verify or calibrate wrenches that need greater accuracy, the Sturtevant Richmont
System 8 is engineered to +/- .25% which allows you to calibrate wrenches with +/-1%
accuracy. Many of the digital wrenches on the market are in the +/- 1% accuracy group.
8:
Torque Testing
8.1
It is important to follow recommended procedures in order to secure accurate torque
verification results. Good testing practices always include:
8.1.1
Exercising the wrench to 100% of capacity at least 3 times immediately prior to testing.
This applies to all wrenches except pre-set click wrenches, which should be exercised
three times to their preset point.
8.1.2
Wrenches should be verified on testers in the range of the 10% to
100
% of the testers
rated capacity. If a tester had 100 ft. lbs capacity, wrenches between 10 ft. lbs and
100
ft lbs would be candidates for testing on the 100 ft lb tester.
8.1.3
The tester itself should be exercised to 100% of capacity at least 3 times prior to testing.
Once the tester is warmed up and has been exercised, you can test for hours if you like.
8.1.4
Selecting the proper mode for testing is important. Please use the following:
* All click wrenches: initial peak mode
* All beam, dial, digital, and cam-over wrenches: peak mode
* Torque screwdrivers use peak mode
* Power tools use power tool mode and select the appropriate filter
8.1.5
The Torq-Tronics comes with a memory mode that must be turned on if you wish to
track specific test results.
8.1.6
When you change modes, any preset target torque ranges and the percent of tolerance
should be changed to the appropriate settings based on the wrenches being tested.
8.1.7
The LED indicators for “OK”/”NG” will not light if there is no pre-established torque
value because there is no standard against which to test.
8.1.8
The same is true for the “OK”/”NG” reading in the lower left hand corner of the Dis-
play. An “OK”/”NG” will not be designated if there is no pre-established torque value
for that specific test.
8.1.9
If you are testing and using the batteries, and the low power indicator lights, stop
testing and insert new batteries. Remember NiMH rechargeable batteries are the only
acceptable batteries for Torq-Tronics 2. Under no circumstance should you mix old and
new NiMH in the tester at the same time.
8.2
Please see the section on the 9 most common torque testing mistakes located on the
www.srtorque.com /common testing mistakes to improve accuracy in your results.
Owners Manual
Torq-Tronics 2
Sturtevant Richmont
Direct: 1 847/455-8677
U.S. Toll-Free: 800/877-1347
www.srtorque.com
11/16/201
7
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