Hey there everyone. I recently purchased one of the digital Kobalt torque wrenches from Lowes and somehow managed to throw it out of calibration. I can't find any info on how to recalibrate it. I know how to calibrate a typical torque wrench but on this one I hold to power button it displays SEND and then CAL. I'm not sure what it's expecting here. Does anyone else have any knowledge on this?
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Calibrating Kobalt torque wrench
- Thread starter fhon
- Start date
The Kobalt torque wrenches have a 1 year warranty. Take it in for return or replacement.Hey there everyone. I recently purchased one of the digital Kobalt torque wrenches from Lowes and somehow managed to throw it out of calibration. I can't find any info on how to recalibrate it. I know how to calibrate a typical torque wrench but on this one I hold to power button it displays SEND and then CAL. I'm not sure what it's expecting here. Does anyone else have any knowledge on this?
That may be a good idea. I'd still like to be able to calibrate it in the future though
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Calibration is usually not an end user function. It requires access to a set of standards or a calibration machine that is compare to those standards. Neither are cheap.
I don't know how to adjust that particular wrench, but you can get close by measuring a beam exactly a food from the center of the pivot and hanging weights off of the beam. 1 lb at 1 ft is one ft-lb. 200 lb at 1 foot is 200 ft-lbs. The length of the beam, the stiffness of the beam, and the actual weight of the weights are critical. Pick a couple of waits and adjust the wrench till it is correct at the weight.
Generally it is easier to spend $20 and send it to the local calibration lab.
Hey there everyone. I recently purchased one of the digital Kobalt torque wrenches from Lowes and somehow managed to throw it out of calibration. I can't find any info on how to recalibrate it. I know how to calibrate a typical torque wrench but on this one I hold to power button it displays SEND and then CAL. I'm not sure what it's expecting here. Does anyone else have any knowledge on this?
try this
^^^LOL
I would send it to a calibration service, usually it's around $50
Haha. I wish this manual was worth a ****
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guy48065
Well-known member
Manufacturers don't put calibration instructions in torque wrench Owner's Manuals for a reason--you'll usually make it worse with buckets of sand, a bathroom scale, and a tape measure.
If you've monkeyed about in the "hidden" menu and corrupted the calibration data you're best to send it in.
If you've monkeyed about in the "hidden" menu and corrupted the calibration data you're best to send it in.
dnschmidt
Well-known member
That's the stupidest torque wrench I've ever seen. It has no settings? All you've got is a display without the ability to see a light or hear a buzzer when you approach target torque. What a beauty.
sberry
Banned
Can replace it for 50.
Can replace it for 50.
At least the one I bought didn't come with a calibration report, so you have a new wrench that you have no idea what the accuracy is verse a used calibrated wrench that you know exactly what you can expect from.
All of my cheap torque wrenches go to calibration as soon as they come out of the box. It is $25 dollar to calibrate them and $50 to certify them. It is not worth the liability to not do it. Most come back good, but occasionally they are way off from the factory. Crapsman is especially bad about that. HF ones have never actually failed, but I'll still send them.
dnschmidt
Well-known member
T45, Eclatorq (who makes MAC's digital torque wrenches) has a way of doing a recalibration that uses the Internet. They have a special USB cable that you hook between the wrench and an Internet capable computer that uses a program to enter the measured values vs. the calibration torque (true torque from the reference standard). The software goes into the EEPROM inside of the tool and updates the calibration table. Works pretty slick.
On the other hand I've never seen one of their wrenches be off by very much (which you would expect with a strain gauge based instrument since strain gauges are typically either perfect or dead with nowhere in between) but it's nice to know that recalibration is possible.
On the other hand I've never seen one of their wrenches be off by very much (which you would expect with a strain gauge based instrument since strain gauges are typically either perfect or dead with nowhere in between) but it's nice to know that recalibration is possible.
guy48065
Well-known member
IIRC, some (if not maybe vs. all) electronic wrenches can't be calibrated outside the factory.
...best bet is warranty.
I've found the secret passage into the CAL menu of many except some Apex-made ones. Those MUST be calibrated on a proprietary jig that accesses the EEPROM. I hate Apex.