Checking my Inverter with an Oscilloscope

[DBK]

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Does this digital scope have a spectrum analyser function? Once the signal is digitised, it's 'only' a software function. You could look at the value of the second, third etc harmonics (100Hz, 150Hz etc) and compare it to the mains waveform.

sadly, no.

 

[DBK]

Why not do a comparison check against the 'mains' 230v?

I did that yesterday, the waveform looked identical.

 

[Gromett]

Went to look at the inverter but neither of your links to it works anymore

 

[kevenh]

Went to look at the inverter but neither of your links to it works anymore

Could be the invertor

EDECOA 1500W Peak 3000W Pure Sine Wave Power Inverter DC 12V to 240V AC Car Vehicle withLCD Display and Remote Contoller, Dual 2.1A USB Ports

View on Amazon

.
Just a search by the key words though

 

[DBK]

Went to look at the inverter but neither of your links to it works anymore

The links are out of date now but this one looks like it - although the price has gone up a bit - I only paid about £150 from memory. I didn't fit the remote control as I just turn it on and off with the isolating switch. But I think you do take a chance with these cheaper inverters. The reviews are mixed and I guess I've just been lucky.

If I ever have to remove it I'll have a look inside and see if there are any obvious filters for smoothing the supply.

Amazon product ASIN B07W4J13J5

EDECOA Pure Sine Wave Power Inverter 1500W Peak 3000W DC 12V to 240V AC with Remote Controller 4.2A Dual USB Ports

View on Amazon

But on the up side I've discovered the 'scope is working at RF frequencies - it was operator error by me - specifically trying to measure at the wrong point in the radio.

 

[kevenh]

The links are out of date now but this one looks like it - although the price has gone up a bit - I only paid about £150 from memory.

Amazon product ASIN B07W4J13J5

EDECOA Pure Sine Wave Power Inverter 1500W Peak 3000W DC 12V to 240V AC with Remote Controller 4.2A Dual USB Ports

View on Amazon

pfft! The invertor in my link has a display & is only £185.00 - but I've never owned an invertor or did any other comparisons between the two EDECOA's