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Operating Limits
Operation
Operating Limits
Power Output
The inverter can deliver 2200 watts for about 60 minutes. The inverter must cool
for 15 minutes before it can resume operation at 2200 watts. Note: The wattage
rating applies to resistive loads.
The inverter will operate most AC loads within its power rating. Some induction
motors used in freezers, pumps, and other motor-operated equipment require very
high surge currents to start. The inverter may not be able to start some of these
motors even though their rated current draw is within the inverter's limits. The
inverter will normally start single phase induction motors rated at
Input Voltage
The inverter will operate from input voltage ranging from 10 volts to 15 volts.
Optimum performance will occur when the voltage is between 12 volts and
14 volts. If the voltage drops below 10.5V+/-0.3V, an audible low battery
warning will sound. The inverter will shut down if the input voltage drops
below 9.5V+/-0.3V. This protects the battery from being over-discharged.
It will restart when the input voltage exceeds 12V+/-0.3V.
The inverter will also shut down if the input voltage exceeds 15.75V+/-0.75V.
This protects the inverter against excessive input voltage. Although the inverter
has protection against over-voltage, it may still be damaged if the input voltage
was to exceed 16 volts.
20 English
Operation
Troubleshooting Guide
•
Problem/Symptom
Low output voltage
No output voltage
No output voltage after
prolonged use
1
⁄
HP or less.
2
No output voltage,
"Protect" indicator
lighted
No output voltage
No output voltage
Low battery alarm
on all the time
Troubleshooting Guide
Possible Causes
Solution
Overload
Reduce the load.
Low input voltage
Recharge battery. Check
connections and cable.
Thermal shutdown
Allow inverter to cool Off.
Reduce load, continuous operation
input current required.
Improve ventilation; Make sure ventilation
openings in the inverter are not obstructed.
Reduce ambient temperature.
High input voltage
Make sure the inverter is connected
to 12V battery.
Check regulation of charging system.
Short circuit
Check load for proper operation.
Inverter switched Off
Turn inverter On.
No power to inverter
Check wiring to inverter.
Reverse DC polarity
Observe correct polarity.
Poor DC wiring
Check connections.
Poor battery condition
Make sure battery is fully charged.
•
Nothing comes close to a Cobra
®
21
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