Hello all, I bought a HPS140i. I have checked the oscilloscope but it does not work. I have done the following. I have checked with the probe the internal reference signal. A square wave is shown in the screen. However when I tried anything else it does not show anything coherent. Signal on the screen goes mad like in the case ground was not present. Also even DC voltage do the same. I thing ground level is not well connected or so. I have checked there is contact between the clip for ground level and the device connection.
[quote=“VEL417”]Is the probe GND intermittend or is the problem related to the scope?
In any case, please return the device to your distributor for exchange.[/quote]
There is a connection between the ground clip and the coaxial conector but it does not measure Dc voltage. It seems it is the scope.
Regarding to send back the scope. I live in France but it a different city from the shop where I bought it. I have moved shortly after buying it. What I should do?