How can I get a calibration certificate of this meter?
1366439
"Standards" solutions can be purchased from Amazon or other chemical supply stores. There is a manual that comes with the meter that describes how to recalibrate the instrument using the standards.
1160519
I'm not aware of a calibration function to it. It's simply quite accurate out of the package.
1494478
I have no idea. All I know is that it proved to be unreliable in it's readings and I returned it.
289163
I will look to see if they sent me one. They may not have. In the mean time Google, "how to use an analog multi meter"
216127
In order to calibrATE you do need the packets and thew ionized water. Unless you can get a lab to check it against their equipment
956224
I don't calibrate the meter. It works right out of the box for humidity level. I do not use the ph meter or the light meter. May be you can stick in in vinegar and see if it reads about 3
1917744
Use what you got :), I would start by having it hooked up and take readings with my VOM to compare all hookups to verify accuracy of all readings.
818585
I have 2 of these and the humidistat seems to read differently in each one. You can't calibrate it. I just set it to achieve the humidity I want, using what I assume is a more accurate humidity gauge. This is the AcuRite gauge I use. AcuRite 00613A1 Indoor Humidity Monitor
765826
As far as I know you don't. I have two other oxymeters and have taken overnight tests with professional grade recorders and my meter reads accurate out of the box when cross-referenced with the other meters. It is important, at least for me, to remember I can vary up to 5 points depending on what finger I use with any meter. Anyway, my meter came accurate and didn't need calibrating so I never looked in to it.
1392307
I found no calibration feature. You can contact the manufacturer and they will answer your question further.
877973
I don't believe the machine can be calibrated, at least I haven't noticed an option. Also the readings are not always consistent if you take a few back to back. Have others noticed this?
1874066
Should have a small data info sheet in the bottom of the box it comes in. The connector that has two wires(I used a nine volt battery with a switch), red & black are for display power. The other wires are for voltage sense & amperage (milli-volt) from shunt. Yes, a shunt is required. This is a good meter, just not enough information to support it's installation & calibration. Two adjustments (apex) on the P.C. board are for the calibration of the volt meter & amperage read-outs.
794111
There is no calibration. The button is only to get a reading on the meter but it will give you a true PH reading.
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.
1044606
I didn't calibrate mine. I haven't compared it with other thermometers, but it seems to be working just fine.
330798
I'm sorry....I can't answer that, but, if you call the company that made your meter....they should be able to answer your question.
1552178
Sorry Calvin, I think this a great meter, however, I only use it to check the voltage on my AA and AAA batteries and rechargeable batteries from Amazon..... Works Great ! Phil Pauls Valley, Oklahoma