How to test the welding quality of butt welding machine

How to test the circuit connection of the butt welding machine? The video demonstrates the use of a clamp ammeter for this purpose.

https://welpingtek.com/
butt welding machine
butt fusion machine
fusion welding machine
butt fusion welder
thermofusion machine
jointing machine
thermofusion welding

https://welpingtek.com/
butt welding machine
butt fusion machine
fusion welding machine
butt fusion welder
thermofusion machine
jointing machine
thermofusion welding

#https://welpingtek.com/

#https://welpingtek.com/
#hdpepipe pipe jointing machine
#hdpe pipe welding machine
#hdpe welding machine

#plastic pipe welding machine
#butt fusion welding machine
#hdpe pipe jointing heater machine
#hdpe pipe jointing heater machine
#pipe joint machine

The size of this machine is 1600 mm, semi-automatic hydraulic type.