Operation Customer Assistance; Quick Evaluation Before Installation - Cobra CPI 1575 Operating Instructions Manual

10275_CPI1575_PH3 8/14/07 8:38 AM
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Quick Evaluation
Before Installation
Introduction
Intro Operation Customer

Quick Evaluation Before Installation

Assistance
This section provides you with basic information about the
inverter and how to check its performance before installation.
Be sure to have on hand:
Installation
A 12 volt DC power source (such as a vehicle battery).
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The power source must provide
Power Source
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 test load by
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10 to get the current (in amperes)
the power source must deliver.
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 it is 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 four feet (one and one-half
meters).
The end of the cable that connects to the inverter
must have its insulation stripped off for about
one-half inch (one and one-half 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.
4
Page 4
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Introduction
Warranty Intro
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A test load that can be plugged into the AC receptacle on
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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
Notes
Intro
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To check your inverter's performance before installation:
Warning
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Power Button
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Connect Terminals
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Intro
Connect Power Source
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Intro Operation
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Power Button
Installation
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Intro
Connect Test Load
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USB Outlet
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Quick Evaluation
Before Installation
Operation Customer Warranty
Assistance
Test Load Minimum
Installation
Notes
Power Cable Size
Operation Customer Warranty
Assistance
100W # 16 AWG copper
250W # 12 AWG copper
500W # 8 AWG copper
Installation
Notes
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1. Turn the inverter off (see page 14
for details). If the power source is
a DC power supply, switch it off
as well.
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2. Connect cables to power input
terminals (see page 8 for details).
3. Connect cables to power source
(see page 8 for details).
Operation Customer Warranty
4. Check to make sure all
Assistance
connections are secure.
5. Turn the inverter on. If the power
source is a DC power supply,
Installation
Notes
switch it on first.
Customer Warranty
Assistance
6. Plug in the test load.
Intro Operation Customer Warranty
The inverter should supply power
Assistance
to the load. If the inverter is not
working properly, refer to the
Notes
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troubleshooting guide on page 20
Operation Customer Warranty
or power and protection indicators Installation
Notes
Assistance
section on page 16.
NOTE A USB device can be
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Installation
Notes
used to check the output
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of the USB Outlet.
Nothing Comes Close to a Cobra ™ 5
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