RFI PSU-1210 User manual

OWNER’S MANUAL
AC-DC POWER SUPPLY
Please read this manual before operating your power supply
Switch Mode AC-DC Power Supply
Model No.
_______________
PSU-1210
PSU-1223
PSU-1230
_______________

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Precautions
WARNINGS—TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE
THIS APPLIANCE TO RAIN OR MOISTURE. THERE ARE NO USER SERVICEABLE PARTS
INSIDE—REFER TO QUALIFIED SERVICE PERSONNEL.
IMPORTANT SAFETY INSTRUCTIONS
Please read before using your power supply.
1) It is recommended that you return your power supply to RF Industries P/L (RFI) for any
service or repair. Incorrect assembly may result in electric shock or fire.
2) To reduce the risk of electric shock, unplug power supply from outlet before attempting any
maintenance or cleaning. Turning off controls will not reduce this risk.
3) An extension cord should not be used unless absolutely necessary. If an extension cord
must be used make sure that the pins on the plug are the same number, size and shape as
those of the original power supply plug.
4) Place the unit in an area that will allow air to flow freely around the unit. DO NOT block or
obstruct vent openings on the side/bottom of the unit.
5) Keep the unit away from moisture and water.
6) NEVER OPERATE UNITS IN PARALLEL
WARNING
Your power supply should be grounded to reduce the risk of electric shock. The power supply
is equipped with grounding conductor and grounding plug.
The cord must be plugged into an outlet that is properly installed and grounded in accor-
dance with all local codes and ordinances. Never alter the AC cord of plug provided. Improp-
er connection can result in risk of electric shock.
DO NOT USE THE POWER SUPLY FOR DIRECT CHARGING OF BATTERY OR DIRECT
CONNECTION TO A BATTERY FOR BATTERY BACK-UP. (Please read the section on Battery
Back-up).
Table of Contents
Precautions
2
Description 3
Features 3
Connection and Operation 3
Cooling and Fan Control 4
Troubleshooting 5
Specifications 6
Warranty 6

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Description
PSU-1210, PSU-1223 and PSU-1230 are switched mode power supplies which convert 120-240
VAC, 50-60 Hz to regulated 13.8 VDC based on pulse width modulation (PWM) control.
Features
• BasedonswitchedmodetechnologyandPWMcontrol
• Compactandlightweight
• Highefficiencyandlessheatdissipation
• Protectedagainstshortcircuit,overcurrentandovervoltage(throughPWMcontroller)
• PSU-1210isconvectioncooled.PSU-1223&PSU-1230haveforcedaircoolingand
over temperature shut down
• FullyapprovedLVDandsafety
Connection and Operation
NOTE! The DC output connector has a tubular hole of diameter 0.2” (5mm) with a set screw. For
a firm connection, crimp/solder a pin type copper terminal on the cable ends of your 12V DC
device.
Ensure that the power supply’s ON/OFF switch is off and it is unplugged from the AC outlet.
Switch off your 12V DC device and connect its positive and negative to the RED (Positive) and
BLACK (Negative) terminals respectively. Ensure that the connections are secure and tight. Plug
the power supply into the AC outlet. Press the ON/OFF switch of the power supply to ON and
observe that the neon indicator in the switch illuminates. If the indicator fails to light, recheck
connections and the AC Supply. If problem persists, please return for service.
Your 12V DC device may now be switched on.

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Cooling and Fan Control
PSU-1210 is cooled by convection.
PLACE THE UNIT IN A WELL VENTILATED OPEN AND COOL AREA.
DO NOT BLOCK THE VENTILATION OPENINGS ON THE SIDES
PSU-1223 and PSU-1230 are cooled by convection and forced air. A temperature controlled fan
has been provided to improve cooling at higher loads. The fan is controlled by a sensor mounted
on the power transformer. THE FAN WILL BE OFF AT LOWER LOADS.
It will come on only when the temperature of the power transformer is above 70°C due to higher
loads. In case the fan fails or the air flow is blocked, a second temperature sensor mounted on
the power transformer will activate over temperature shut down at 100°C. The output voltage will
be automatically resumed once the unit cools down.
PLACE THE UNIT IN A WELL VENTILATED OPEN AND COOL AREA.
DO NOT BLOCK THE OPENINGS AT THE FAN SUCTION ON THE
BOTTOM AND THE DISCHARGE OPENINGS ON THE SIDES.
BATTERY CHARGING AND BATTERY BACK-UP
WARNING ! THESE UNITS ARE POWER SUPPLIES AND NOT BATTERY
CHARGERS. DO NOT CONNECT THESE UNITS DIRECTLY TO A
BATTERY
These units should NOT BE DIRECTLY CONNECTED TO A BATTERY for charging or for battery
back-up. Battery charging and battery back-up may be undertaken only when the battery is
connected through suitable external isolating diodes and charge limiting resistor.
The isolating diode will ensure that the battery does not back power the power supply. When a
battery is deeply discharged, it will initially draw a very large charging current and thus, will force
the power supply into current limit mode for prolonged periods.
This is harmful for the power supply. The charge limiting resistor will limit the charging current,
thereby, ensuring that the maximum charging current is well below the current limit value of the
power supply.
WE OFFER OPTIONAL BATTERY BACK-UP AND CHARGING MODULE.

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PROBLEM: Power ON/OFF switch does not illuminate when turned on.
PROBABLE CAUSE SUGGESTED REMEDY
No power in the AC outlet. Check there is power in the outlet.
Internal Fuse Blown Return the unit for Service
PROBLEM: AC side fuse blows as soon as power is turned on.
PROBABLE CAUSE SUGGESTED REMEDY
Unit is defective. Return the unit for Service
PROBLEM: The output voltage is 0 V or very low.
PROBABLE CAUSE SUGGESTED REMEDY
Input voltage is very low. Check that the input voltage is 120-240VAC
The unit is in current limit condition not due to
overload caused by large reactive loading or by
the output being short circuited
Check the output terminals are not shorted.
Remove the load. If the output loading or by
the output being voltage gets restored, the load
is shorted short circuited or is offering large
reactive impedance.
Unit is shut down due to over temp. (PSU-
1225G/1235G only)
Check that the fan has not failed or the vent
openings for obstructions.
PROBLEM: Output voltage drops as soon as the load is switched on.
PROBABLE CAUSE SUGGESTED REMEDY
The unit is going into current limit protection
mode.
Reduce the load current to less than limit
protection mode the current limit value. Motors,
pumps, compressors, relays, incandescent
and halogen lamps and large capacitors in the
input section of the DC devices draw very high
inrush or starting currents of up to 10 times their
normal operating currents.
Ensure that these inrush/starting currents are
below the current limit value of the power supply
Troubleshooting

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Warranty
1. The benefits provided to you under this warranty are in addition to any other rights or
remedies you may have, as a consumer, under any other law which applies to RFI
products. RFI goods come with guaranties that cannot be excluded under the
Australian Consumer Law. You are entitled to a replacement or refund for major failure
and for compensation for any reasonably foreseeable loss or damage. You are entitled
to have the goods repaired or replaced if the goods fail to be of acceptable quality and
the failure does not amount to a major failure.
2. Under this warranty RF Industries agrees to repair or replace the product, at RF
Industries cost, purchased by you in Australia if the product does not perform in
accordance with the manufacturers specifications during the period of this warranty.
3. The PSU Series Power Supply Unit warranty is valid for a period of 2 years from the
original date of purchase. Please retain your proof of purchase and a copy of this
warranty document, as this will need to be provided should you wish to claim under this
warranty.
Model PSU-1210 PSU-1223 PSU-1230
Input Voltage 115-240VAC 50-60Hz
Output Voltage 13.8VDC +/-1%
Output Ripple/Noise (Full Load Peak-
Peak) 120mV 150mV
NominalImpedanceΩ 50
Output Current 9.5A 23A 30A
Output Limit 10A 27A 32A
Efficiency >86% >90% >83%
Cooling Convection Temperature Controlled Fan
Protections Over Current, Short Circuit and Over Voltage
Over Temperature Protection Yes
Input Fuse Rating 2A 4A 5A
AC Input Connection IEC
DC Output Connection Screw Terminal 5mm
Dimensions 190mm x 180mm x 60mm
Weight 1.45kg 1.75kg
NOTE: SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
Specifications

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NOTE: SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
4. To be able to claim under this warranty you must.
a) Ensure the product is installed by a suitably qualified person and is installed
in accordance with the manufacturer’s instructions or as detailed in the user
guide and any applicable Australian Standard. You must be able to provide
proof of this if required by RF Industries.
b) Is operated in accordance with the manufacturer’s instructions or as detailed
in the user guide.
c) Is maintained in accordance with the manufacturer’s instructions or as
detailed in the user guide.
5. What is excluded from this warranty? Cover for any damage, malfunction or failure
resulting from incorrect installation, accidental damage, misuse, abuse,
incorrect configuration, tampering, un-authorised repairs, un-authorised
modification by any person, acts of God, corrosive environment or infestation
by insects or vermin are excluded under this warranty and RF Industries
accept no liability for the same.
6. How to make a claim under this warranty.
a) Contact RF Industries on 1300 000 RFI to obtain an RMA (return material
authorisation) number.
b) Package the product adequately, to prevent any further damage and send
the product to:
Warranty Department
RF Industries Pty. Ltd.
99 Station Road
Seven Hills, NSW 2147.
The outside of the package should be marked with the RMA number.
c) Please include with the product, a copy of the proof of purchase and
a detailed description of the fault, your contact details including phone
number and return address.
7. RF Industries may seek reimbursement of any costs incurred by them when a product
is found to be in good working order.

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Ph: 1300 000 734
WIRELESS
Warranty Department RF Industries Pty. Ltd.
99 Station Road Seven Hills, NSW 2147.