EMIX EMBC-8025 Operational Manual

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OPERATIONAL MANUAL

EMBC-8025

INTELLIGENT BATTERY CHARGER

Version 1.5

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Product Overview

EMBC-8025 is an intelligent switching mode battery charger with float maintenance. It is designed to offer

maximum life for battery. It represents the state-of-the-art of today’s technology for battery changer. The

EMBC-8025 is a 2-in-1 battery charger and switching power supply with overload and short circuit

protection. The charging unit includes three stages, BULK, ABSORPTION and FLOAT intelligent battery

charger with protection against terminals reversed and shorted.

At the front panel, there is a large LCD status display of battery voltage, charging voltage, charging current,

battery connections and error message. The EMBC-8025 intelligent charger is also equipped with a battery

low cut (BLC) feature that prevents the batteries from being over discharged. The build in smart cooling fan

turns when charge current reaches 1000mA. This process cools the power MOSFET faster and much

quieter on standby mode.

EMBC-8025 is suitable for charging batteries of up to 200Ah. Charging method is via PIC microcontroller

controlled constant current with float maintenance. Multi level protections are incorporated to prevent

premature batteries failure, such as battery low cut, battery over voltage charging, over current and

polarity reversed charging.

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Features

• Intelligent PIC microcontroller controlled 24V battery charger

• Constant current charging with Float maintenance

• Battery over charge protection (exceed batteries limits)

• Battery charge terminals reversed protection (cause serious damage to batteries and equipment)

• Input over voltage protection (48V Batt. Connected to charger may damage internal circuitry)

• Input low voltage protection (12V Batt. Connected to charger cause serious over charging)

• Charge 24V batteries up to 10 to 200Ah (fully charge 24V/80Ah batteries within 24Hrs)

• Backup battery low auto disconnect and trigger buzzer sound alert

• 240VAC main power failed and resumed monitoring

• Liquid crystal display (LCD) voltage, Ampere, battery conditions and error message

• Voltage Output with 24VDC (4A) utility power supply unit

• Output short circuit and overload protections

• Real main switch and fused AC input socket to avoid accidentally switching off system

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Front View and Rear View

Figure 3.1 Front view of Battery Charger

Figure 3.2: Rear view of the Battery Charger

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Front Panel and Rear Panel Indication

EMBC-8025 Intelligent Battery Charger with Power Supply

3.1.0 Front Panel Indicator

1 Mains LED – The power LED is red if the battery charger is connected to the main and switch on
2 LCD Display – Shows the battery voltage, charge current, charge voltage to the battery and error

message.

3.2.0 Rear Panel connection

3 Mains power Inlet – A socket for connecting the battery charger to the mains power. Main voltage

of 240V ± 10%

4 ON/OFF Switch – Connects and disconnects the main power supply.
5 Power Supply Unit (24VDC) – To equipments DC supply for total load maximum of 4A.
6 Battery in – Power Connector to the Batteries (Can be charged up to 200AH)
7 Backup Power Supply (24VDC) – Power out connector to the 24VDC (>20A) limit output back-up

power on each contact for the EMIX rack systems products.

** NOTE: It is very important to determine the size of cable for back up supplies. (Ex: Size of the cable from
Battery Charger to Battery and Battery Charger connect to others equipments).

** NOTE: Always Double Check on the positive (+) & Negative (-) priority before connecting to the unit