Safety beam batteries and arm problems

[Laminator]

Hi. 
The batteries in my safety beam are only lasting a day for some reason. Don’t no if this is related but 
One of the swing gates is also not working. Was a noise coming from hydraulic arm (beninca)then it stopped. 
The other sliding gates is fine. 
Any ideas?

[Automatic-TC]

hi

check the voltage in batteries

or close photo circuit on control board for short testing time only