𝗧𝗵𝗶𝘀 𝗶𝘀 𝘁𝗵𝗲 𝗳𝗼𝘂𝗿𝘁𝗵 𝗦𝗙𝟰-𝟮𝗗 + 𝗦𝗞𝟰-𝟭𝗦 𝘄𝗲 𝗯𝘂𝗶𝗹𝘁 𝘁𝗵𝗶𝘀 𝗹𝗮𝘀𝘁 𝘁𝘄𝗲𝗹𝘃𝗲 𝗺𝗼𝗻𝘁𝗵𝘀. 𝗟𝗲𝘁’𝘀 𝗮𝘀𝗸 𝘀𝗮𝗹𝗲𝘀 𝗺𝗮𝗻𝗮𝗴𝗲𝗿 Bo Johansson 𝗶𝗳 𝗵𝗲 𝗰𝗮𝗻 𝘁𝗲𝗹𝗹 𝘂𝘀 𝗮 𝗹𝗶𝘁𝘁𝗹𝗲 𝗯𝗶𝘁 𝗮𝗯𝗼𝘂𝘁 𝘁𝗵𝗶𝘀 𝗺𝗮𝗰𝗵𝗶𝗻𝗲?
Of course, this is a combination machine of acid filler SF4-2D and acid level control SK4-1S.
SF4-2D is a double headed filling machine for filling/topping up each cell to a specific acid level.

𝗪𝗵𝗮𝘁 𝗱𝗼𝗲𝘀 𝘁𝗵𝗲 𝗦𝗞𝟰-𝟭𝗦 𝗱𝗼?
It is a control unit that checks the acid level in each cell, making sure the batteries are correctly filled. Batteries that are not correctly filled will be rejected at the reject station that is placed after the machine.
The machine can also be equipped with an OCV-test.

𝗪𝗵𝗮𝘁 𝗶𝘀 𝗮𝗻 𝗢𝗖𝗩-𝘁𝗲𝘀𝘁?
Open Circuit Voltage.
All typical suitable for a finishing line.
Open Circuit volt, the voltage between positive and negative terminals of a battery without any load connected.
A battery with the wrong OCV, according to specification, will be rejected at the reject station.

Thank you Bo for the short explanation!