Troubleshooting Guide
Operation
TroubleshootingGuide | • | ||
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Problem/Symptom | PossibleCauses | 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 | |
afterprolongeduse | 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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| Improveventilation; | |
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| Makesure 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 |
| connected to | |
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| 12V battery. | |
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| Check regulation | |
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| of chargingsystem. |
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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 | Blown fuse | Replace fuse. |
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inverter |
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Low battery alarm | Poor DC wiring | Check | |
on all the time |
| connections. | |
| Poor battery | Make sure battery | |
| condition | is fully charged. | |
Specifications
Operation
Specifications
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Continuous output power (1 hour) . . . . . . . . . . . . 400W Surge rating (0.1 second) . . . . . . . . . . . . . . . . . . . 800W Peak efficiency (12V – 1⁄2 load) . . . . . . . . . . . . . . > 88% Efficiency (full load, 12V) . . . . . . . . . . . . . . . . . . . > 83% 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
(32°F – 104°F) Storage temperature range . . . . . . . . . . . .
Protection . . . . . . . . . .Overload,
Notes
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.
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14 | Nothing Comes Close to a Cobra® 15 | ||