20
Always observe the indicated polarity and make safe and proper contacts. Use the appliance with the supplied connection cables only. It is forbidden to
modify or extend them. Place the battery the closest possible to the inverter and connect them with the shortest possible cables. Toxic and flammable
gases may escape from the battery, therefore always use them in a properly ventilated area.
EXTENSION OF CABLES
The longer or thinner the cable is the higher resistance it has. Due to the power loss resulting from the increasing voltage drop associated with the
increasing resistance, it is forbidden to extend the 12 V connection cable. Use a 3x1.5mm
2
extension cord instead to supply mains voltage from the
inverter to a more distant device you want to operate.
PROTECTION CIRCUITS
The device is equipped with multiple means of protection: against overload, overheating, surge, short circuit and battery discharge.
When the protection activates, the output voltage is cut off. Then you should immediately
1. Switch off the operated device.
2. Switch off the inverter.
3. Unplug the connectors.
4. Check the power requirements of the mains driven equipment you want to operate and proper connections.
5. Check the battery power status.
6. Check the inverter for overheating.
7. After troubleshooting, you can use the equipment again. Consult a specialist if necessary.
In the event of a short circuit or connection with reversed polarity, the internal fuse will interrupt the circuit. In this case, contact a specialist who will install
a fuse of the same type and rating as the original. The fuse is not a user replaceable part.
The inverter can be operated from voltages between approx. 11V and 15.5V. When the voltage is lower or higher, an audible signal turns on, then the
red LED lights up and the output power is cut off. When the voltage level returns to normal, the output becomes active again. If the protection is triggered
due to an overload, the appliance must be switched off manually as well using the toggle switch on the front panel, and then restarted. Of course, the
cause of the fault must be remedied before restarting.
In addition to the specified voltage range, sufficient amount of current must be provided from a charged battery of good condition. The approximate
value of the required input current can be obtained by dividing the power input of the device you want to operate by 10. For example: 100W/10=10A.
When the battery is exhausted, both the operated device and the inverter must be switched off. Start the vehicle engine or connect a battery charger to
charge the battery. The frequency of charging, or whether it is needed continuously depends on the current conditions of use. These include the capacity
of the battery, the type of the inverter and the consumption of the equipment operated from it.
Notes:
The power consumption of many household appliances is less than the inverter output, still the overload protection may be triggered when they are
turned on. It can supply resistive loads and devices with switched mode power supply the easiest. These represent linear and even loads. These
include, for example, conventional cooking plates, kettles, LCD TVs and other similar appliances.
Some audio-video devices and power hand tools may represent higher loads. For example, an asynchronous motor, compressor, CRT television, water
pump, pump, microwave oven… When these are switched on, they draw much more than their rated current for a short time. They may have 2 to 6
times higher power requirement. You may need to select the inverter of suitably power by testing. Oversizing the inverter multiple times is especially
needed for motor driven devices.
The voltage transformer switches off automatically in the event of an overload. The cooling fan on the back operates depending on the load and
temperature. Always allow the hot air to escape freely.
● The green LED indicates that the appliance is powered and ready for use.
● The red LED signals that the protection is activated.
The output is then disabled.
Find the cause of the error; for example, the battery voltage is too
high or too low, the inverter output is overloaded, or a short circuit has occurred.
● If the output is disabled due to decreased or increased input voltage, it will be active when the input voltage reaches the appropriate level again.
● If the protection has disabled operation due to overload, the appliance will not work again, unless switched off and back on manually.
SAI 500TS
SAI 1000TS
INPUT VOLT
SOUND SIGNAL
LED COLOR
SOUND SIGNAL
LED COLOR
~ > 15,5 V
fast, intermittent beep
green and red LED is lit
no
red
~ 10,0 - 10,7 V
intermittent beep
green LED lit
continuous beeping
green
~ < 10,0 V
fast, intermittent beep
green and red LED is lit
continuous beeping
red
PROTECTIVE EARTHING
Before using the inverter, you have to provide protective earthing, similarly to normal households.
Use in a fixed place:
The special screw on the side of the appliance must be earthed, in such way that it must be connected to a metal rod with proper contact that is inserted
into the ground at least 1.2 m deep.
Use in a vehicle:
The ground must be connected to the negative pole (body) of the vehicle. (Provided that the vehicle is negative grounded.) For positive grounded
vehicles, connect the positive (red) pole. If the operated mains driven device is located outside the vehicle, then use the aforementioned earthing rod.
If operated in a boat, connect the ground to the earth wire of the electrical circuits (e.g., engine) in the boat.
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