Quick Evaluation
Before Installation
Introduction
Quick Evaluation Before Installation
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This section provides you with basic information about the inverter and how to check its performance before installation.
Be Sure to Have on Hand:
A 12 volt DC power source (such as a vehicle battery).
Power Supply | 1. The power source must provide |
| between 11 and 15 volts DC and |
| be able to supply enough current |
| to run the test load. As a rough |
| guide, divide the wattage of the |
Quick Evaluation
Before Installation
Introduction
A test load that can be plugged into the AC receptacle on the inverter for short term testing at a low power level. The following cables are recommended for testing low power level test loads only.
| Test Load | Minimum |
Test Load | Power | Cable Size |
100w # 16 AWG copper
250w # 12 AWG copper
500w # 8 AWG copper
To Check Your Inverter’s Performance Before Installation:
test load by 10 to get the current |
(in amperes) the power source |
must deliver. |
A set of cables to connect the power source to the inverter (not included).
The cables must be as short and thick as possible in order to reduce the voltage drop between the power source and the inverter when drawing current from the power source.
If the cable suffers an excessive voltage drop, the inverter may shut down when drawing higher currents because the voltage at the inverter dropped below 10 volts.
#4 AWG stranded copper cable is recommended. It should be no longer than 1.5 meters (4 ft.).
The end of the cable that connects to the inverter must have its insulation stripped off for about 1⁄2 inch (1.25 cm) back from the end, exposing the bare copper.
The other end of the cable, which connects to the power source, must be terminated with a lug or other connector that provides a secure, low resistance connection.
For example, if the power source is a battery, the cable must be terminated with a battery terminal that clamps to the post on the battery.
On/Off Switch to Off
Connect Terminals
Connect Power Source
On/Off Switch to On
Connect Test Load
1.Turn the inverter Off (see page 14 for details). If the power source is a DC power supply, switch it Off as well.
2.Connect cables to Power Input Terminals (see page 8 for details).
3.Connect cables to power source (see page 8 for details).
4.Check to make sure all connections are secure.
5.Turn the inverter On. If the power source is a DC power supply, switch it On first.
6.Plug in the test load.
The inverter should supply power to the load. If the inverter is not working properly, refer to the Troubleshooting Guide on page 18 or Power and Protection Indicators section on page 16.
4 English | Nothing comes close to a Cobra™ 5 |