Hi Martin, nice video. I just wanted to correct your assumptions made around 37:00 where you compare the measured and STC values. STC stands for "Standard Test Conditions". It does not mean that you should get these values anytime you measure your panel/string/array. Namely, your measurement will hardly ever be done under the Standard Test Conditions (that include 1000 W/m2, 25°C ambient and I don't know the panel temperature - I'm actually not even 100% sure the 25°C is fully correct - stands in standards anyhow :) ). This calculation is there for you to be able to compare your "non-standard" measurement with the nominal values (that are normally specified at standard test conditions of course). So, if you want to see how your panel/string/array is performing, compare STC to Nominal and not to Measured. Measured values will usually be of a lower concern once you got your STC calculated properly.
Martin, thanks for another informative and enjoyable video. I have a question as well. I noticed that you're using one of those red RS soldering stations. Where do you get replacement tips for it? I can't seem to find them anywhere.
Might sound crazy but that's not what happens. The biggest concern will be when you measure the short-circuit current and that's where the 15 A limitation comes in. But remember, you create a short-circuit between plus and minus of the string meaning the voltage is no longer there so the actual power dissipated inside the unit is much smaller. The longest test in this case is done for the Riso measurement (plus&minus shorted and measured against PE). The I-V curve measurement will include a series of short measurement pulses so you might actually get reasonable power but over a very short time - and it's the energy that will heat stuff up, right, not the power :)
Hi Martin, I am in need of advice and from no one better than yourself. I will document my world bicycle tour and am in need of the most powerful and portable/capable Solor panel system. I have no price range, what could you suggest would suit me the best? Thank you
Good question. They have not released enough information about how they are interconnected, operate, etc when I first looked. If they are connected in long DC strings which I suspect they will be...then this tool should work with them. To gain full benefit, Tesla would need the specs released so they can be added to a solar module database like the one in the Seaward software.
Thanks for reviewing our PV210 mjlorton, we're currently working on an improved version of this instrument, stay tuned!
Hi Martin, nice video. I just wanted to correct your assumptions made around 37:00 where you compare the measured and STC values. STC stands for "Standard Test Conditions". It does not mean that you should get these values anytime you measure your panel/string/array. Namely, your measurement will hardly ever be done under the Standard Test Conditions (that include 1000 W/m2, 25°C ambient and I don't know the panel temperature - I'm actually not even 100% sure the 25°C is fully correct - stands in standards anyhow :) ). This calculation is there for you to be able to compare your "non-standard" measurement with the nominal values (that are normally specified at standard test conditions of course). So, if you want to see how your panel/string/array is performing, compare STC to Nominal and not to Measured. Measured values will usually be of a lower concern once you got your STC calculated properly.
I've got the Seward PV150 and it's a shame it doesn't have a neck strap as some of our inverters are in awkward positions and mounted high up.
Awesome work, thanks a lot.
Can you recommend an equivalent equipment which can work up to 20 Amps string current?
hello. can i use this devices without inverter? direcly on PV panel? for mesause DC output power as kW?
Martin, thanks for another informative and enjoyable video. I have a question as well. I noticed that you're using one of those red RS soldering stations. Where do you get replacement tips for it? I can't seem to find them anywhere.
The PV210 is able to measure I-V curves up to 10 KW. But this produces 10 KW heat inside the Unit!? How does this work?
Might sound crazy but that's not what happens. The biggest concern will be when you measure the short-circuit current and that's where the 15 A limitation comes in. But remember, you create a short-circuit between plus and minus of the string meaning the voltage is no longer there so the actual power dissipated inside the unit is much smaller. The longest test in this case is done for the Riso measurement (plus&minus shorted and measured against PE). The I-V curve measurement will include a series of short measurement pulses so you might actually get reasonable power but over a very short time - and it's the energy that will heat stuff up, right, not the power :)
Hello M.J what is happening for you? I'm some nervous. why you're not post new video?
Hi Martin, I am in need of advice and from no one better than yourself. I will document my world bicycle tour and am in need of the most powerful and portable/capable Solor panel system. I have no price range, what could you suggest would suit me the best? Thank you
Hey Martin! What do you think about Tesla's solar roofs and will this work in the same instance?
Good question. They have not released enough information about how they are interconnected, operate, etc when I first looked. If they are connected in long DC strings which I suspect they will be...then this tool should work with them. To gain full benefit, Tesla would need the specs released so they can be added to a solar module database like the one in the Seaward software.
Thanks for the education. However, you didn't teach us to how to use solar survey 200R with practical example to watch
Thanks for the helpful and detailed video!
Thanks for support
about what I depend to choose the insulation voltage ?
MJL, would you like to sell the IsoTech idm-207?
Hey, i left a question on one of your old vids (how to use multimeter) part 1... Could you please check it out?
Nice unit. :-)
Great sciencing keep it up!
Very usefull info! Thnx
Less than 10 seconds in the video and all ready bombarded with an add 😡😡😡
I think they're way overpriced you can buy a good fluke and it will do the same thing