Hello all!
First of all this is my first post. And I don’t hope it’s my last 
The compagny where I work for has brought a PCSU1000. They want to know what happens when the power is off for 1 second. The PCSU1000 seems to perfect register what happens. But the only problem is that we want to know what happens with a 230V AC signal.
I’am not shure if I can connect a PCSU1000 with a 1:10 probe.
Can I?
With kind regards, BBasje
I warn you to connect the probe directly to mains voltage.
If you by mistake connect the ground lead of the probe to the live (phase, hot or active) line then you’ll destroy both your oscilloscope and the computer.
I think better to use an isolation transformer.
Ok, thanks for the quick response!
So when I use a 1:1 transformer just for isolation I can use it to see what the 230 signal does?
The point I’am trying to make is that the website tells me that I can only add a input voltage of 30Vp. The probe can 1:10 so with 230 x 1.44 = 331.2 / 10 = 33.12V and thats just over 30V.
Do I have to use a 1:50 transformer in order to not blow my pcsu1000?
Greetz, BBasje
OK, forget my last post!
I’am now testing with a 230 to 12 v transformer and it works perfect!
But, on the transient recorder we get a rubbish signal. It looks like a block signal. But when we look in the Oscilloscope tab we see a nice sinus signal like it should be! What could be the problem with this one!
Thanks in advantage!
BBasje
The 230V to 12V transformer is very good and safe choice.
The sample rate of the transient recorder is 100S/sec. This is only two samples per period of the 50Hz mains. It is normal that the waveform image may look quite bad…