I used these to test my cya stabilizer level.. they read low level, and after shocking w non-stab chor, cya read way high?
843822
When Chlorine levels are high they can cause the other tests to read incorrectly.
780513
Just took a multi meter to them while off. It read 0.5 ohms across 3 LEDs @ the cut points... Hope that helps.. Doesn't seem right to me for some reason...
663933
In practice these things are pretty robust. As long as you do the adjustment while there's no output load (just your meter connected) and don't exceed the maximum rated input voltage, you're unlikely to fry it.EDIT: It sounds like one blew up on you, sorry to hear that. This is surprising to me, since the LM2587 has undervoltage lockout. I bench tested this for my application (dropping the input voltage until the thing turned off) successfully several times under 10W load.
214106
That depends on what you are testing. For instance, when checking 1/4 inch cables the light patterns for good are like X's. When checking balanced cables you get something different. The best way to get used to it is to take known good cables and take note of the light patterns. Then take know bad cables and see what they give. Not complicated. good luck.
383389
These are stabilizer's and are not designed to be used to level your unit. If you raise the unit beyond stabilizing the jack screw will bend and will no longer be useful.
1682123
These are the worst tests ever. I highly recommend retesting with a known brand. Good luck.
471249
I used a short term test like the one from First Alert to validate the readings in my basement and it came out accurate. Make sure that you carefully place the unit because placement can effect the readings. 25 is pretty high but certainly in the range of possible - don't ignore it !
1777267
Is it working at all? Set it to most sensitive and quickly look at a bright light, start adjusting from thereI set mine about quarter sensitivity and between 9-10 on darknessany problems let us know
1047200
I noticed the same thing, it reads higher than the bayer one I have also by 20 points. This meter is a piece of junk in my opinion, wastes lots of strips.
1228574
Hi Eglis,Actually this dedection is not safety, Results are not stabil. I can not use eficiently
1855810
Not a real answer, BUT - gave these to each of my kids to use on the grandkids. They no longer use them as they could never get a consistent reading. I think the technology has a ways to go. Sorry not to be of further help.
103232
Alright so I tested the other speakers and something funny happened. For a few seconds they were totally balanced. Then suddenly they were very unbalanced just like the original speakers. However I figured it out. I used the audio from my phone, and woho they worked. It's a software problem, the computers being a lil bi***.
557425
I don't know if this will help, but have you turned AGC or Automatic Gain Control off on your camera? There is also a switch in the battery compartment of the mic to change the output level from 0db, -10db, and -20db.
2267321
Hi Brent, I've just opened one of them up, and the answer is no. There is no off set or gain potentiometer that would allow a calibration. I have been using temperature devices for years, and I have to have them calibrated annually. I have never had a 0.5C thermocouple be out out of spec--only an RTD one that goes to hundredths of a degree. They typically do not go bad or drift (unless damaged). Regards, Daryl
1568687
http://www.youtube.com/watch?v=HRY_Ck6WY_A Press and hold C until it chirps. 1 chirp = high sensitivity. 2 chirps = medium. 3 chirps = low.
442697
In my opinion, the most important thing to keep in mind with this device is "phase". It "detects" better at specific angles to the EM source. So, just proximity to an energy source will not always create a reading because of the phase +/- of the source. Don't use sudden movements but rather steady, deliberate ones. Be aware of your temperature changes when the EMF reading changes, i.e. greater than 1-degree temperature changes. Don't miss your EVP opportunities when either reading changes! - Joe from O.R.C.S. (Other Realms Contact Seekers)
2206403
We bought two of these to do field verifications of STC ratings for exam rooms. When the two meters were sitting side by side they would read about 20 Db different. We used these meters a couple of times and then tossed them out.