6:,7&+ 02'( '& 32:(5 6833/< REGULATED DC POWER SUPPLY 02'(/6 6(& 6(& ,167$//$7,21 23(5$7,1* 0$18$/
TABLE OF CONTENTS Topic Page Important safety instructions 1 Description and features 2 Input voltage conversion 2 Connection and operation 3 Cooling and fan control 3 Battery charging and back up 4 Trouble shooting 4,5,6 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-1212 / SEC-1223 are switched mode power supplies which convert 120 VAC, 60 HZ. or 240 VAC, 50 HZ to regulated 13.8 VDC based on pulse width modulation ( PWM ) control. ( NOTE : These units are factory pre-set for 120 VAC, 60 HZ. input . For conversion to 240 VAC, 50 HZ. , please see instructions below ).
CONNECTION AND OPERATION WARNING ! Before plugging the unit to the AC outlet, please check that your local supply voltage is 120 VAC. If your local supply voltage is 240 VAC, change the internal voltage selection to 240 VAC ( SEE “ INPUT VOLTAGE CONVERSION FROM 120 VAC TO 240 VAC” IN THE PREVIOUS SECTION ) Ensure that the power supply’s ON/OFF switch is off and it is unplugged from the AC outlet..
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.
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 120VAC or 240 VAC as selected The input voltage has been converted to 240 VAC but the unit has been plugged into 120 VAC outlet Power the unit from the proper AC voltage The unit is in current limit condition 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.
TROUBLESHOOTING WHEN USING THE POWER SUPPLY WITH RADIO TRANSCEIVERS Ð Ð Ð Ð This power supply generates, uses and can radiate RF energy as per limits laid down under class “B”, Part 15 of FCC rules. Position the radio, antenna and the power supply to minimize any received spurious noise from the supply and excess RF energy from the transmitter. Ideally, for a 100W HF installation, the antenna should be at least 40 to 50 ft.
SPECIFICATIONS INPUT VOLTAGE 100 – 130 VAC, 60 HZ ( PRE-SET ) 200 – 260 VAC, 50 HZ ( REQUIRES INTERNAL JUMPER SETTING ) OUTPUT VOLTAGE 13.8 VDC OUTPUT RIPPLE & NOISE (ON FULL LOAD) SEC-1212 SEC-1223 LESS THAN 10 mV RMS LESS THAN 15 mV RMS OUPUT CURRENT, CONTINUOUS SEC-1212 SEC-1223 10 A 23 A CURRENT LIMIT SEC-1212 SEC-1223 14 A 25 A COOLING SEC-1212 SEC-1223 CONVECTION TEMPERATURE CONTROLLED FAN PROTECTIONS OVER CURRENT, SHORT CIRCUIT AND OVER VOLTAGE (THROUGH PWM CONTROLLER ).
3 YEAR Limited Warranty SEC-1212/SEC-1223 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.
Thank you for purchasing a Samlex power supply product ! Samlex America Inc. 110 –17 Fawcett Road Coquitlam, B.C. V3K 6V2 Canada Ver.
