Modified sine wave inverter (SM series)
 
SM-250
 
 
SM-700
 
 
SM-1500. SM-2000 and SM-3000 are very similar
 

        Operation

        The SOLÉNER modified sinewave inverters cover practically all domestic and semi professional installations necessities. They are very robust, reliable devices, and their efficiency is very high, in this way their faultless operation is guaranteed if their technical specifications are followed.

 

SM-250 SM-700 SM-1500 SM-2000 SM-3000
Nominal voltage 12/24Vdc 12/24Vdc 12/24Vdc 12/24Vdc 24Vdc
Input voltage range as required  as required as required as required as required
Frequency 50Hz 50Hz 50Hz 50Hz 50Hz
Frequency regulation  0,1% 0,5% 0,5% 0,5% 0,5%
Power (30 minutes) * 400W 1000W 2000W 2500W 3300W
Power (continuous) * 250W 700W 1500W 2000W 2800W
Output voltage (RMS) 230Vac 230Vac 230Vac 230Vac 230Vac
Voltage regulation 5% 5% 5% 5% 5%
Peak power (resistive) * 1000W 1500W 2500W 3000W 4000W
Peak power (motors) * 1/6 C.V. 1/4 C.V. 1/3 C.V. 1/2 C.V. 3/4 C.V.
Efficiency at nominal power 83% 87% 90% 91,3% 93%
Maximum efficiency 88% 92% 95,6% 96,6% 97%
Self consumption 60mA 70mA 80mA 100mA 100mA
Dimensions (mm) 250/220/80 240/220/150 405/280/215 405/280/215 405/280/215
Weight (kg) 4,5 7,8 20 25 24
 * since October 1998 the power have been increased for the SM-700 a SM-3000
 
Technical specifications for the SM series
 

        - They are protected against short circuit, overload, high battery voltage and low battery voltage.

        - All the models have an electronic circuit for automatic load detection which reduces the output voltage (and thus the self consumption) when it does not detect a connected load.

        - The box is made in stainless steel and anodized aluminum.

        - There are two version, the only difference beign the labeling: one is suitable for installation on a horizontal surface and the other for wall mounted applications. The photograph shows the latter version.

        The 1500, 2000 and 3000 Watt models can also operate as battery chargers upon request, and incorporate a device for automatic selection of the AC current source.

 

        CHARGER MODE (only valid for reversible models)

        The reversible inverters have a charge circuit controlled by a high performance microprocessor which controls the battery charge at all moments.

        When the device receives AC current through the cable labeled "230V INPUT", it automatically changes to charger mode: this stops the inverter mode (current is no longer generated) and connects the output directly to the input, in this way all the consumption comes directly from the generator (or from the grid).

       At the same time, the battery charge cycle starts, and the LED indicators show the current supplied to the battery (in 25%, 50%, 75% and 100% steps) and the state of charge. After the charge cycle is complete, the charger continues supplying 25% of the nominal current for battery maintenance. After some time in this state, it can resume automatically the charge cycle if the battery voltage decreases below 13V (if the battery is 12V) or 26V (if it is of 24V).

        When the equalization switch is activated, the charge cycle is different. The charge goes from 0 to 100% as in a normal cycle, but this phase continues until the device is switched off, there are not longer 230 Volts at the input or 8 hours have passed since the equalization began. This option should be used to equalize the battery cells after a deep battery discharge and one or two times every two or three months. In this state the charge indicators located on the frontal panel blink to show that the charger is equalizing the battery.

        The bypass maximum power is given by the output thermal switch, which is located on the rear of the device, near the output cable.

        If the device is switched off the output is cut, even if there are 230 Volts at the input.

 

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