Class 630 Charger Display Shows Only Zeros When Connected to Battery

Hello. Gentlemen, I bought a Class 630 charger today. After connecting the battery for charging, the display shows nothing to me, only zeros. I do not know now, is it supposed to be like this or is something damaged? Maybe someone has such a miracle and knows something about it? [/ syntax]

And you connected according to the operating instructions?

You know, there's even nothing wrong with hooking up there. The power cable is permanent. Same with the minus crocodile clip. The only thing that can be determined is whether I am charging a 12 or 24v battery. I measured with a meter whether there is any current at these terminals and it is there. The only thing is that the display should show the charging current, and I have zero there.

As long as there is electricity.
This charger has 3 normal charge ranges and 3 fast charge ranges with timer - countdown timer. 7 range is boot.
Check with a clamp ammeter to see if there is any current flowing.
Alternately, take the bulb from the headlight and try to glow it from the rectifier. It should glow with varying intensity when you change ranges.
If the bulb is on, and some indications should appear on the indicator (it's hard to name a meter). They are usually overpriced.
If there is still nothing - please return the rectifier as faulty.