| Operation |
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| Troubleshooting Guide | ||||
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| Troubleshooting Guide | ||||||||
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| Problem/Symptom | Possible Causes | Solution | ||||||
| Low output voltage | Overload | Reduce the load. |
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| No output voltage | Low input voltage | Recharge battery. | ||||||
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| Check connections | ||
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| and cable. |
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| No output voltage | Thermal | Allow inverter | ||||||
| after prolonged use | shutdown | to cool off. | ||||||
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| Reduce load, | ||
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| continuous | ||
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| operation input | ||
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| current required. | ||
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| Improve ventilation; | ||
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| Make sure ventilation | ||
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| openings in the | ||
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| inverter are not | ||
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| obstructed. | ||
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| Reduce ambient | ||
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| temperature. |
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| No output voltage, | High input | Make sure | ||||||
| “Protect” indicator | voltage | the inverter is | ||||||
| lighted |
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| connected to | ||||
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| 12V battery. | ||
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| Check regulation | ||
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| of charging system. |
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| No output voltage | Short circuit | Check load for | ||||||
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| proper operation. | ||
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| No power to |
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| Blown fuse | Replace fuse. |
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| inverter |
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| Low battery alarm | Poor DC wiring | Check | ||||||
| on all the time |
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| connections. | ||||
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| Poor battery | Make sure battery | ||
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| condition | is fully charged. | ||
| Operation |
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| Specifications | ||
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| Specifications | ||||||
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| Continuous output power (1 hour) . | . . . . . . . . . . . 400W | |||||
| Surge rating (0.1 second) | . . . . . . . . . . . 800W | |||||
| Peak efficiency (12V – 1⁄2 load) . . . . | . . . . . . . . . . > 88% |
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| Efficiency (full load, 12V) | . . . . . . . . . . > 83% |
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| No load current draw | . . . . < 0.5A (12.6V) | |||||
| Output waveform (resistive load) . . . | Modified sine wave | |||||
| Output frequency | . . . . . 58HZ – 62HZ | |||||
| Output voltage |
| . . . . . . . . . . . . . . . . . | . . . . . 109V – 120V | |||
| USB output | . . . . . . . . . . . . . 5V | |||||
| Input voltage . . | . . . . . . . . . . . . . . . . | 10.4VDC – 14.4VDC | ||||
| Alarm voltage (unload) | . . . . .10.2V – 10.8V | |||||
| Shutdown voltage (unload) | . . . . . . 9.2V – 9.8V | |||||
| Operating temperature range | . . . . . . . 0°C – 40°C | |||||
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| (32°F – 104°F) | |
| Storage temperature range | . . . . . | |||||
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| Protection . . . . | . . . . . .Overload, | |||||
| Notes |
| reverse polarity, under/over voltage | ||||
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All protection is automatically recovered.
To protect the battery, if the unit needs to be restarted after low voltage protection, the voltage of DC input should be above 12V.
To extend the life of the fan, it will stop when there is no load. The speed of the fan increases as the load increases.
The unit is completely insulated in input and output for added safety.
14 | Nothing Comes Close to a Cobra® 15 |
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