Cobra Electronics CPI 850 - Manual (Page 5)

5 Nothing comes close to a Cobra ® 4 English
Installation
Requirements
Cobra 800 Watt Output Waveform
Some very sensitive electronic equipment may not operate
satisfactory on “square wave” or “modified sine wave.”
The output waveform is referred to as “square wave” or
“modified sine wave.” It is a stepped waveform designed
to have characteristics similar to the sine wave shape of
utility power. A waveform of this nature is suitable for most
AC loads (including linear and switching power suppliers
used in electronic equipment, transformers and motors).
Quick Evaluation Before Installation
•
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).
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 test load by
10 to get the current (in amperes)
the power source must deliver.
The provided two foot direct-to-battery 12 gauge cable.
Only use the cable provided with
your inverter.
A test load that can be plugged into the AC receptacle on
the inverter for short term testing at a low power level.
To check your inverter’s performance before installation:
1. Turn the inverter off (see page 11
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 7 for details).
3. Connect cables to power source
(see page 7 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 14 or power and protection
indicators section on page 12.
Installation
Quick Evaluation
Before Installation
Introduction
On/Off Switch to Off
Connect Terminals
Connect Power Source
On/Off Switch to On
Connect Test Load