BlueLancer
Well-Known Member
I think it is a transformer but not sure. Does it have a value fitted to my boat. Found it in a box of bits with the boat
Help, What is this??
- Thread starter BlueLancer
- Start date
Rowana
Two steps lower than the ships' cat
Either a battery charger or a 12v supply for "something".
What's inside?
What's inside?
ProDave
Well-Known Member
It's a mains powered battery charger.
Only of use if you have a marina berth with a mains hookup.
Only of use if you have a marina berth with a mains hookup.
BlueLancer
Well-Known Member
Accepting that it is a Battery Charger . Why is there three outlets positive and then a symbol I do not know, then negative. How can you tell when a battery is fully charged?
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ProDave
Well-Known Member
I would say the middle terminal is for a lamp, perhaps to indicate either that is is still charging, or to indicate fully charged.
Try googling the model number, but expect to find instructions in German (google tanslate is handy)
Try googling the model number, but expect to find instructions in German (google tanslate is handy)
sarabande
Well-Known Member
Elektromatic used to be standard equipment on motor homes by Hymer. It looks as if it's designed for permanent linking to a single battery, and therefore may have some built in intelligence as a charger.
EDIT
An identical model was sold on Germany eBay recently for 51 Euros.
http://cgi.ebay.de/Netzgeraet-Elektromatic-LA-75-S-220V-Gleichrichter-/150489148366
where it is described as "fully automatic".
Is the middle symbol for a sensor ?
EDIT
An identical model was sold on Germany eBay recently for 51 Euros.
http://cgi.ebay.de/Netzgeraet-Elektromatic-LA-75-S-220V-Gleichrichter-/150489148366
where it is described as "fully automatic".
Is the middle symbol for a sensor ?
philip_stevens
Well-Known Member
German to English translation
You are bidding on a used
Power supply Electromatic LA 75 S
of Schaudt
220/12V power rectifier
Fully automatic power supply unit
New price was 110 €
So is it a charger or a straight PSU of 75W??
Looks to me to be a PSU.
You are bidding on a used
Power supply Electromatic LA 75 S
of Schaudt
220/12V power rectifier
Fully automatic power supply unit
New price was 110 €
So is it a charger or a straight PSU of 75W??
Looks to me to be a PSU.
Porthandbuoy
Well-Known Member
Looks to me like a battery charger right enough. Could the middle terminal be a sense line to the battery +ve?
owen-cox
Well-Known Member
Power supply not charger
I think what you will find is that the unit is a power supply that allows you to connect the battery to the - and + terminals and a load( such as lights or other 12v equipment not more that 75VA to the - and load (Lamp symbol) terminal. I think what happens is that if mains is not connected the load is supplied from the battery directly but if 240V is supplied it runs the load directly from the power supply so not discharging the battery. I think this is why it is called "automatic" I had one fitted in a german motorhome I had a while ago it was very good as you did not need a battery at all if you had 240V ( such as over winter).
I think what you will find is that the unit is a power supply that allows you to connect the battery to the - and + terminals and a load( such as lights or other 12v equipment not more that 75VA to the - and load (Lamp symbol) terminal. I think what happens is that if mains is not connected the load is supplied from the battery directly but if 240V is supplied it runs the load directly from the power supply so not discharging the battery. I think this is why it is called "automatic" I had one fitted in a german motorhome I had a while ago it was very good as you did not need a battery at all if you had 240V ( such as over winter).
Porthandbuoy
Well-Known Member
A UPS system (Uninteruptible Power Suppy)! Used a lot in industry to keep essential services running. Makes sense.
sarabande
Well-Known Member
I am pretty certain it is not a UPS. They are much bulkier and you need decent sized batteries and other heavy kit for them to supply 240v when the meter runs out.
Unless you mean that the boat's batteries act as the power supply, and this unit is the rectifier/transformer unit as well.
I ha me doots.
Unless you mean that the boat's batteries act as the power supply, and this unit is the rectifier/transformer unit as well.
I ha me doots.
BlueLancer
Well-Known Member
Okay folks thanks for the input, but now really confused.I think what is being said is that, an item of no more than 12v is run from the batteries via the unit ,but when unit is connected to 240v it bypasses the batteries and converts to 12v and runs said item. Sounds good but am I correct, if so it would seem to be an worth while bit of kit to install.I await words of wisdom with baited breath.
philip_stevens
Well-Known Member
Duh!!!!
I've got a 24vdc PSU/UPS up in the attic doing nothing - as its 24v and not 12v. Didn't click that it is a similar unit.
William_H
Well-Known Member
Power supply
I think you will find it is simply a regulated power supply. That is it will provide 14.2 volts to the teminals up to 5 amps. If the battery is less than fully charged it will charge the battery by puting 14.2 volts on the terminals. The actual charge into the battery will depend on the battery charge state or inherent voltage. So a discharged battery might charge at 5 amps but a nearly charged battery will barely get an amp into it.
However when connected to the battery if there is any discharge from the battery the battery volts will fall so the charger will feed the load direct by maintaining the 14.2 volts.
So it will not automatically stop charging when battery is charged but will naturally reduce the charge rate. Indeed exactly like a standard alternator on an engine.
So if you have 240v AC available connect the terminals to the battery via a fuse near the battery 10Amp would be good and enjoy. If your drain and charge state calls for more than 5 amps it should reduce its voltage accordingly in overload mode. So no problems. olewill
I think you will find it is simply a regulated power supply. That is it will provide 14.2 volts to the teminals up to 5 amps. If the battery is less than fully charged it will charge the battery by puting 14.2 volts on the terminals. The actual charge into the battery will depend on the battery charge state or inherent voltage. So a discharged battery might charge at 5 amps but a nearly charged battery will barely get an amp into it.
However when connected to the battery if there is any discharge from the battery the battery volts will fall so the charger will feed the load direct by maintaining the 14.2 volts.
So it will not automatically stop charging when battery is charged but will naturally reduce the charge rate. Indeed exactly like a standard alternator on an engine.
So if you have 240v AC available connect the terminals to the battery via a fuse near the battery 10Amp would be good and enjoy. If your drain and charge state calls for more than 5 amps it should reduce its voltage accordingly in overload mode. So no problems. olewill
jwdorst
Active Member
The manufacturer was Schaudt (Germany). Still in business. German language information attached (although probably not very helpful).
My understanding is that, yes, it's a permanent 12V power source (actually 14,2V) doubling as a battery charger. Meant to be permanently attached to the batteries and permanently switched on. It does the job of your batteries, until you have no mains power available. Essentially, the idea is that your batteries are the back-up for this unit.
Of course, if you look at it the other way round, it's a charger for your batteries. Compared to today's smart chargers, its pretty rudimentary.
My understanding is that, yes, it's a permanent 12V power source (actually 14,2V) doubling as a battery charger. Meant to be permanently attached to the batteries and permanently switched on. It does the job of your batteries, until you have no mains power available. Essentially, the idea is that your batteries are the back-up for this unit.
Of course, if you look at it the other way round, it's a charger for your batteries. Compared to today's smart chargers, its pretty rudimentary.
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