Sherlotronics 3.2AMP User manual
Installation Instructions -
For Service Persons Only
Model No: 3.2AMP
• Microprocessor controlled charging output.
• Low battery switch off at 11VDC +/-5%.
• Over voltage protection on the battery charger at 15VDC +/-5%
• Resettable Fuse protection on DC output.
• Fuse protection on AC input.
• 50mA Quiescent current on power failure.
• ABS UL94 HB flame resistant plastic enclosure.
English
Model: 3.2AMP
Housing colour and material: White ABS
Input Voltage range: 110V - 240VAC 50Hz 0.5A
Output Voltage range setable: 12VDC - 15VDC
Max Current: 3.2A@ 12VDC
Operating Temperature: -3°C to 49°C
Dimension (lxbxh) 200 x 180 x 80mm
Gross weight: 0.805Kg
Technical Specifications:
Features
Product Description
This product is sold subject to our standard warranty conditions and is warrantied against defects in
workmanship for a period of 2 years.
Warranty
The device is a 12VDC Power-supply unit designed
to trickle charge 12VDC GELL/ AGM / LEAD ACID
batteries with a max Amp Hour rating of BNH.
NOTE: This product is not designed for charging
Lithium Ion type batteries.
Top Controller Board
NOTE:
Before connecting the battery, plug the unit
into mains. Using a voltage meter measure
Volts across the Red(+) and Black(-) battery
wires to check that the charge voltage is
between 13.6V -14.2V D.C. The recommended
battery charge voltage is +/-13.8VDC. 5%
higher or lower than 13.8VDC is acceptable.
If you notice a +/-7VDC reading on your
multi meter every so often when no battery is
connected, this is normal as the unit is pulsing
between the PWM 100Hz charge cycle and the
constant voltage charge cycle.
Disconnect Mains power before wiring up the
equipment to the unit.
The unit will create slight internal heat on all
components including its battery. Ensure
that the unit has adequate ventilation when
selecting the installation location.
Locate the Voltage adjustment trimmer
on the bottom switch mode PCB next to the
green LED. Turning clockwise will increase the
voltage. Set Voltage to 13.8VDC. Measure the
voltage output on the RED/ BLACK Battery
wires using a multi-meter.
AC Fail
Outputs+ (Positive) for a
AC fail condition. When AC
is restored goes OV (Negative)
INPUT
+Positive 13.8V DC
-Negative OV DC
The unit is supplied with a packet of screws.
The “plastic PCB plate” is not screwed down so that it is easy to open up the unit to run cables out of the
box or to access the mains leads or the DC input wires.
Please use the Qty 4:- 4.2 x 9.5mm Self tapper screws that are provided to screw the plastic plate securely
to the “Plastic base” Only do this once you have run the cables out of the bottom of the plastic base and
mounted the unit onto a secure wall using three (3) x M6 x 42 Nail in anchor or similar.
Securing the plastic PCB plate
GREEN Power is on & the unit is charging the battery
ORANGE Power failure condition. The battery Voltage is above 12V
RED Power failure condition. The battery Voltage is below 11.6V and is almost depleted
RED FLASHING Over Voltage protection. Input is above 15VDC. The Charger is turned off to protect the
battery.
OFF Power failure condition. The battery Voltage reached under 10V & so the unit switched off.
LED Indication
Plastic
PCB plate
You can easily unplug the red/black battery leads
if you wish to install or remove a battery from the
unit. The Plug can only fit in one direction. Negative
(Black wire) is the first wire from the left side.
Battery Lead Plug
With the AC power off, plug the Negative (Black) &
Positive (red) wires to the battery and then insert the
battery into the battery compartment.
Installing the Battery
This product is approved for use in residential,
commercial and light Industrial environment
and complies with the essential protection
requirements of the R& TTE Directive 1999/EC on the
approximation of the laws of the member states.
Approvals
EN 55022:2010
EN 55024:2010
EN 6100-3-2:2006+A1:2009 + A2:2009
EN 6100-3-3:2008
IEC 60950-1:2005 + A1:2009
EN 62368-1: 2014+A11:2017
Pending Certifications
THE SOCKET OUTLET SHOULD BE INSTALLED NEAR THE EQUIPMENT AND
SHALL BE EASILY ACCESSIBLE
The device is intended to ONLY Charge 12VDC AGM / GELL/ Lead Acid batteries with a max
capacity ampere hour rating of 8Amp hour. A bigger battery may result in the unit not operating
correctly and possible over heating.
ONLY USE:
AGM/GELL
LEAD ACID
BATTERIES
