SWITCH MODE DC POWER SUPPLY REGULATED DC POWER SUPPLY MODELS : SEC-1212CE SEC-1223CE INSTALLATION & OPERATING MANUAL
TABLE OF CONTENTS Topic Page Important safety instructions 1 Description and features 2 Connection and operation 2 Cooling and fan control 3 Battery charging and back up 3 Trouble shooting 4 Switching power supplies & RF Noise 5,6 Specifications 7 Warranty information 8 Notes : 9
CAUTION ! ! RISK OF ELECTRIC SHOCK DO NOT OPEN ! WARNING—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 a qualified Samlex dealer for any service or repair. Incorrect assembly may result in electric shock or fire. 2.
DESCRIPTION SEC-1212CE / SEC-1223CE are switched mode power supplies which convert 230 VAC, 50 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) ∫ SEC-1212CE IS CONVECTION COOLED.
COOLING AND FAN CONTROL / THERMAL SHUT DOWN (SEC-1223CE) SEC-1212CE is cooled by convection. PLACE THE UNIT IN A WELL VENTILATED OPEN AND COOL AREA. DO NOT BLOCK THE VENTILATION OPENINGS ON THE SIDES SEC-1223CE is 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.
TROUBLESHOOTING - GENERAL 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. AC side fuse inside the power supply is blown Replace the fuse inside the unit. See fuse ratings at page 8 PROBLEM : AC side fuse blows as soon as power is turned on. PROBABLE CAUSE SUGGESTED REMEDY Unit is defective Call technical support.
SWITCHING POWER SUPPLIES AND RF NOISE 1. Switched mode power supplies ( SMPS ) employ high frequency switching and thus, are a source of radio interference, a recipient of radio interference and a conduit of radio interference. ( Older linear type transformer based power supplies do not employ high frequency switching voltages and will be quieter as compared to switching type of supplies ). 2.
6. Following additional guidelines may be followed to reduce the effects of RF noise: a. Use additional appropriate AC radio frequency interference (RFI) power line filter immediately before the ac input of the power supply. Recommended: Corcom Inc. ( www.cor.com ) “Q” series. Filtered, ferrite coated cord set ( www.emceupen.com ) is another choice. These cord sets, with integral line interference filters, reduce common and differential mode interferences over a wide frequency range.
SPECIFICATIONS INPUT VOLTAGE (NOMINAL): 230 VAC, 50 HZ OUTPUT VOLTAGE: 13.8 VDC +/- 1% OUTPUT RIPPLE & NOISE: SEC-1212CE SEC-1223CE 120 mV 150 mV OUPUT CURRENT, CONTINUOUS: SEC-1212CE SEC-1223CE 10 A 23 A CURRENT LIMIT: SEC-1212CE SEC-1223CE 14 A 25 A COOLING: SEC-1212CE SEC-1223CE CONVECTION TEMPERATURE CONTROLLED FAN PROTECTIONS: OVER CURRENT, SHORT CIRCUIT AND OVER VOLTAGE (THROUGH PWM CONTROLLER ).
3 YEAR Limited Warranty SEC-1212CE/SEC-1223CE manufactured by Samlex America, Inc. ( the “ Warrantor “ ) is warranted to be free from defects in workmanship and materials under normal use and service. This warranty is in effect for 3 years from the date of purchase by the user ( the “ Purchaser “ ) In any case part of the equipment proves to be defective, the purchaser should do the following : 1. 2. 3.
Notes : Attach your original bill of sale here. Model No: SEC-1212CE Date purchased : Place of purchase : Purchase price : Serial number : 9.
Thank you for purchasing a Samlex power supply product ! Samlex America Inc. 110 –17 Fawcett Road Coquitlam, B.C.