Manson Engineering Industrial SPA-8230 User Manual

SPA-8230 SWITCH MODE POWER SUPPLY

INTRODUCTION

The SPA-8230 Switch Mode DC Power Supply provides high power output for its small size and weight. It is suitable for a
variety of applications, for example operating low voltage automotive and radio equipment from an AC mains outlet, and
provides 13.8Volts (trim pot adjustable 12V to 15V) at up to 25 Amps peak.
Please read these instructions carefully and follow them to prevent abuse or misuse of the power supply. These instructions
must be kept for future reference.

FEATURES

1. Lightweight and small in size: This switch mode power supply has the advantage of small size and weight in
comparison to linear mode power supplies.
2. High Efficiency: This unit operates with efficiency greater than 80% under normal conditions.
3. Overload Protection: Current limiting circuitry is used to prevent overloading of the power supply. The front panel
'DC OUTPUT ON' indicator will dim when an overload condition occurs.
4. Over Temperature Protection: To prevent damage to the unit when high temperature conditions occur, the over
temperature circuitry operates to reduce the power supplies output to a safe level.
5. Over Voltage Protection: The over voltage circuitry operates to protect the power supply and the load from
excessively high output voltage. Remove any external voltage and then switch off the power supply for 30
seconds or more before switching it on again to restore operation.
6. High RFI Stability: Protection circuitry is provided against RFI (Radio Frequency Interference) that ensures stable
operation of the power supply in adverse conditions.
7. Output Voltage Adjustment: A variable trim pot adjusts the output voltage from 12V to 15V (+/- 0.5V) enabling
the power supply to be used in a variety of applications.

PANEL DESCRIPTION

1. Power On/Off Switch
3. Auto Accessory Socket (10A max)
5. Cooling Fan (Variable speed)
7. Fuse Holder

INSTALLATION

1. Ensure that the unit is properly grounded through the AC mains plug. This will prevent electric shock due to
leakage should a high voltage surge occur.
2. DO NOT place the unit in dusty or highly humid locations. DO NOT place the unit in direct sun-light or locations
subjected to high temperatures.
3. Place the unit on a flat surface in a location which provides unobstructed air circulation. Allow at least 50mm
space on the sides and back and do not obstruct the vents at the bottom of the power supply.
4. DO NOT place the unit close to TV sets or CRT monitors.
5. Always use appropriate terminal lugs and tighten the screw terminals when operating at high currents to prevent
arcing and overheating of the terminals.
6. The unit is for Indoor Use only.
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USER'S MANUAL
2. Power On LED Indicator
4. DC Output Terminals
6. AC Input Socket (IEC)
8. Trim pot voltage adjustment
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