User manual SIMA STP-600

[. . . ] Do not allow water to drip or splash on the STP-325 Keep the unit in cool environments. Ambient air temperature should be between 40 degrees and 80 degrees F. Keep out of direct sunlight and away from heating vents. Keep the unit away from flammable material or in any location which may accumulate flammable fumes or gases, such as the battery compartment of your car, boat, RV or truck. · · · Sima Products Corporation 140 Pennsylvania Avenue Bldg. [. . . ] These fault conditions include: output overload, output short circuit, low input voltage and over-temperature of the unit. This can happen if a device has a large start-up surge, if an appliance (like a drill or saw) is stalled or if the inverter does not have a circulating supply of cool air. Connection to Power Source The STP-325 requires connection to a standard 12 volt DC power source such as the batteries found in most cars, trucks, RVs and boats. The power source must provide between 11 and 15 volts Dc and be able to provide sufficient current to power the load. At full power the STP-325 will draw about 30 amps. When the load exceeds 150 watts, use the cables with alligator clips for direct connection to the 12 volt battery. WARNING: When connecting cables, a spark may occur. To prevent explosion from the battery gasses, when connecting jumper cables, always connect the wires to the inverter first. Overload Fault Indicator (Red light ) The red light is illuminated when a current overload fault is detected. An overload fault occurs when the power draw exceeds the inverter's maximum capability To connect the STP-325 to your 12 volt battery (Figure1): 1. Make sure both alligator clips are disconnected from the battery. Connect the red (+) wire to the positive (+) terminal on the STP-325 and the black (-) wire to the negative (-) terminal. Connect the red (+) alligator clip to the positive (+) battery terminal and the black (-) alligator clip to the frame or engine of the vehicle. An under-voltage fault (beep) An under voltage fault can occur when the input voltage reaches about 10. 2 volts. The STP-325 will sound a continuous alarm and shut off when the input voltage drops to 9. 6v to protect your battery from being completely discharged. An over-temperature fault An over temperature fault occurs when the STP-325 internal circuitry gets too hot due to overload or improper air circulation. The STP-325 will turn off the green power light. Fuse Replacement Cigarette Plug fuse (see figure 3) If you overload the STP-325, it is possible to blow the fuse in the cigarette plug. If this happens, unplug the cigarette plug from the power source, wait for the tip to cool and unscrew the metal tip on the plug. Remove the fuse and install a new fuse rated at 15 amps. Replace the tip and screw firmly but do not over tighten. Always determine why the fuse blew and remedy the problem before using the STP-325 again. Figure 2 Figure 1 Unit fuse (see figure 4) If the fuse blows, disconnect both power leads from the battery. Remove the protective cap by pulling straight up. Next, remove the fuse by pulling straight up. Install a new 35 amp fuse and replace the protective cap. Always determine why the fuse blew and remedy the problem before using the STP-325 again. To connect the STP-325 using the cigarette plug adapter (Fig. 2): The STP-325 also comes with a cigarette lighter plug for easy connection to the power source, Use the cigarette lighter plug, only when powering loads less than 150 watts. [. . . ] RF interference from power inverter How to calculate power usage. Most products have a power rating on them such as 45 watts. Others may be marked with their current draw, such as . 9 amps. To convert the current to watts multiply the current by 115. Thus . 9 amps x 115 = 104 watts. Turn on the STP-325 Plug the appliance you want to use into the 115 VAC power outlet on the STP-325 (see the chart below for suitable appliances to use with the STP-325). [. . . ]