Samlexpower PST-30S-12A Owner's Manual

300 WattPure Sine WaveDC-AC InverterPST-30S-12APST-30S-24AOwner'sManualPlease read this manual before operating your DC-AC inverter.

Page 9AC POWER DISTRIBUTION AND GROUNDINGCAUTION! PLEASE NOTE THAT THE AC OUTPUT CONNECTIONS AND THE DC INPUT CONNECTIONS ON THESE INVERTERS ARE NOT

Page 10Grounded Electrical Power Distribution SystemThe National Electrical Code (NEC) requires the use of a “grounded electrical distribution system”

Page 11Grounding to earth or to other designated ground For safety, the metal chassis of the inverter is required to be grounded to the earth ground o

Page 12POWERING DIRECT / EMBEDDED SWITCHED MODE POWER SUPPLY (SMPS)Non-linear nature of current drawn by Switched Mode Power SuppliesPower supplies ar

Page 13LAYOUTPRINCIPLE OF OPERATIONThe inverter converts the DC voltage of the battery to 120 V, 60 Hz. AC voltage.The voltage conversion takes place

SPECIFYING BATTERIES, CHARGERS & ALTERNATORSThe inverter will require Deep Cycle Lead Acid Batteries of appropriate capacity. Lead-acid batteries

Typical battery sizesBelow is a chart of some battery sizes applicable for powering inverters:BCI * Group Battery Voltage, V Battery AH27 / 31

Depth of discharge and battery life The more deeply a battery is discharged on each cycle, the shorter the battery life. Using more batteries than the

Sizing the Inverter Battery BankOne of the most frequently asked question is, “how long will the batteries last?’. This question cannot be answered wi

Thus, as a thumb rule, the AH capacity of the batteries should be twice the energy required by the load in AHFor the above example, the 12 V batteries

Safety Instructions ... 2,3Inverters - General Information

INSTALLATIONPage 19GENERALInstallation and wiring compliance• Installation and wiring must comply with the local and the national electrical codes an

Page 20DC SIDE CONNECTIONSThe DC input power to the inverter is derived from deep cycle batteries of the required capacity. Read under “Specifying Bat

Page 21The DC input circuit is required to handle very large DC currents and hence, the size of the cables and connectors should be selected to ensure

Page 22NOTE: When using cigarette lighter receptacle in a 12 V vehicle, limit the power to less than 100 watts as the cigarette lighter receptacle wi

Page 23AC output connections The inverter uses NEMA 5-15R receptacle for connecting the AC output to devices and appliances tted with a NEMA 5-15P pl

OPERATIONPage 24Powering on the loadsAfter the inverter is switched on, it takes a nite time for it to become ready to deliver full power. Hence, alw

PROTECTIONS AGAINST ABNORMAL CONDITIONSPage 25No load draw (idle current)When the on / off switch is turned on, all the circuitry inside the inverter

Page 26Shut-down due to reversal of polarity at the DC input terminals. The positive of the battery should be connected to the positive DC input termi

TROUBLESHOOTING GUIDESYMPTOMOn switching on, LED (2) does not light. Buzzer is off. There is no AC voltage.Buzzer alarm is sounded when load is switch

SYMPTOMAC output voltage shuts down when vehicles engine is crankedPOSSIBLE CAUSEShut-down due to over temperature because of fan failure or inadequat

Page 2SAFETY INSTRUCTIONSPlease read these instructions before installing or operating the inverter to prevent personal injury or damage to the invert

Page 29SPECIFICATIONSInput Voltage...10.5 to 16.5 VDC...21 to 33 V DCInput Current a

2 YEAR Limited WarrantyThe PST-30S-12A / PST-30S-24A manufactured by Samlex America, Inc. (the “Warrantor“) is warranted to be free from defects in wo

034-2009-017_PST-30-12A_PST-30-24A_Jan2010e-mail: [email protected]: www.samlexpower.com110-17 Fawcett RdCoquitlam, B.C.CanadaV3K 6V2T: 60

Page 3INVERTER RELATEDPreventing paralleling of the AC output The AC output of this inverter cannot be synchronised with another AC source and hence,

INVERTERS - GENERAL INFORMATIONWhy an inverter is needed The utility grid supplies you with alternating current (AC) electricity. AC is the standard f

Page 5Loads that require “surge power” to startResistive types of loads (like incandescent lamps, toaster, coffee maker, electric range, iron etc) do

Page 6Power rating of MicrowavesThe power rating of the microwave generally refers to the cooking power. The electrical power consumed by the microwav

Page 7CHARACTERISTICS OF SINUSOIDAL AC POWERVoltage, current, power factor, types of loadsThe voltage waveform of 120 VAC, 60 Hz mains / utility power

Page 8ADVANTAGES OF A PURE SINE-WAVE INVERTER OVER A MODIFIED SINE-WAVE INVERTERThe output voltage of a sine-wave inverter has a sine wave-form like t