How often does this need to be sent out for calibration and what is the cost to have it calibrated?
1488822
As near as I know it comes pre-calibrated and will stay that way until it is dropped or damaged. If it does ever need service, the company who makes it is very easy to get along with and will treat you right. When it arrives, turn it on and you are ready to go.
310625
Sean, I have purchased many BAC testers over the years and have yet to find one that does not require calibration. Because they have a sensor built into them, over time or heavy use, the sensor will need to be recalibrated. The Breathometer says calibration is recommended after 250 uses which is in line with others in the market (typical range from other products is usually 100-300 uses). A nice feature here is that there is a test count in the app allowing you to keep track.
1228966
The following site provides instruction and downloadable forms for calibrating the PT500. It costs $29.99 and is recommended after ~200 tests. http://www.q3i.com/calibration.php The shipping address (on the form) is: Quest Products, Inc Attn: Service Center 2349 Jamestown Ave, Suite #4 Independence, IA 90644
1396587
I checked it with my other meter and it appears to be already calibrated. Both of my meters match.
2112107
You have to calibrate it. It was beyond me. But i had a friend who'd done well in chemistry. He was unsuccessful in getting a reading that made sense, but I blame that more on him, than the reader. I would look for a pre-calibrated meter for someone with limited tech skills. i needed it to test PH in pond water. I have several mud ponds. The PH is a little different in each of them.
1777382
A calibration is required each time when it is first turned on. Very easy. Place a testing tube of plain pool water in the device and start.
1854036
There is no initial calibration needed and I don't find anything regarding instructions on how to calibrate it should there be the need to in the future. I am assuming that since it works as most digital scales do, measuring changes in electrical resistance distributed to load cells, calibration is performed at the factory and would need to be performed by the factory in the future if there was a need to do so. I have had other digital scales which operated the same way and lasted for many years. It measures the same as a mechanical scale I have so I believe it is accurate from the factory. The only way to tell for sure is to locate a standard and periodically check to ensure it is calibrated against that standard.
1322891
It should be ready for use when it's purchased. If it starts giving error messages (i.e. - LL.L) it can be recalibrated. I recalibrated mine two times successfully but it reverted to error readings the next time I used it. I returned it to CDN and received a replacement.
1777384
I have never calibrated mine and not sure how you would do it short of sending it back to factory. I have compared mine with several other test sets and also the system at my pool store and found it to be very accurate.
675071
It self calibrated when I first set it up. I have moved it twice since then with no problems.
1474889
Hi DJ, the product comes with the tool needed to calibrate. Here's a description:http://www.cdn-timeandtemp.com/article/how-recalibrate-your-thermometer
1940814
It seems to calibrate itself upon startup. It will calibrate itself to zero if you turn it on with a container that you intend to fill already on it. As for it's need to be calibrated for accuracy, we'll we just have to trust to the gods of electronics. That said, I've never felt it might be even slightly beyond negligible where error is concerned. I'll buy another if mine ever poops out!
821884
I ordered one of these and was concerned that it was not reading accurately, and the company replaced it. Neither device came with a calibration certificate.
1228967
www.q3i.com/support I dont know what is on this site but it is what was recommended in the box. The unit will stay calib. for over 200 tests however. I used to calibrate a lesser version of tester, and this one is much more stable. I do not expect to have any problem for years. Just check that the batteries dont go bad and leak. Cal is prob. expensive. there is a way to set up a standard vapor stream at .1 BAC just to check it yourself, but I have not had to question this yet as I dont use often. contact me at drj@bodymindspirit.ws and I'll keep you in mind when I do this procedure. www.q3i.com/support I dont know what is on this site but it is what was recommended in the box. The unit will stay calib. for over 200 tests however. I used to calibrate a lesser version of tester, and this one is much more stable. I do not expect to have any problem for years. Just check that the batteries dont go bad and leak. Cal is prob. expensive. there is a way to set up a standard vapor stream at .1 BAC just to check it yourself, but I have not had to question this yet as I dont use often. contact me at drj@bodymindspirit.ws and I'll keep you in mind when I do this procedure.
275764
I have purchased two of these and both were in perfect calibration out of the box. One is still new but the other one has been working well and has held calibration for 10 months. If you do want to have calibration capability all you need is a 500 gram weight. a nickle weighs 5.1 on both of mine and a dollar weighs 1 gram even.
1079000
As I recall the calibrates when you tap the platform with your foot and let it settle. You need to do this whenever the unit is moved.
1577482
Good calibration does save electrical costs. That's often shown in CNET HDTV reviews. But $250? Do they get a cut? I don't know about 6 months, but from time to time it probably doesn't hurt to use a calibration DVD (Digital Video Essentials: HD Basics [HD DVD]) or one of those THX calibration ones that come with some movies.