PDF User Manual

  1. Home
  2. Manuals
  3. Cobra CPI 150 Operating Instructions Manual

Cobra CPI 150 Operating Instructions Manual

Made by: Cobra
Type: Operating Instructions
Category: Inverter
Pages: 10
Size: 0.18 MB

 

Download PDF User Manual



Full Text Searchable PDF User Manual



background image

00

Nothing comes close to a Cobra

Operating Instructions for Your 

Cobra

®

150 Watt

POWER

INVERTER

M O D E L  

C P I –

1 5 0

FA

U

LT

PO

W

ER

ON

OFF

 


background image

INTRODUCTION

For Best Results

Your CPI 150 must be
installed and used properly 
in order to provide the best
possible results. Please read
all instructions carefully
before installing and using
the unit. Pay special
attention to CAUTION and
WARNING statements in this
manual. 

CAUTION

statements 

specify conditions that 
could cause damage to the
unit or other equipment. 

WARNING 

statements 

identify conditions that 
could result in person 
injury or loss of life.

Cobra

®

150W 

Output Waveform

This unit’s output waveform
is referred to as ”square
wave“ of ”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).

A2

CAUTION

WARNING

A1

Congratulations

Thank you for purchasing the CPI 150 Power Inverter from
Cobra

®

. When used properly, your unit will give you many

years of reliable service. The operating features of your 
CPI 150 include:

150 Watt

POWER INVERTER

MODEL 

CPI–

150

• Automatic thermal 

protection/shutdown

•  Reverse polarity protection

• AC receptacle
•  Low battery alarm
•  Low battery shutdown

AC 

Output

POWER

OFF

ON

FAULT

ON/OFF 
POWER 
switch

AC 
outlet

DC Input

cigarette 
lighter 
plug

DC input

 


background image

Introduction A2

How Your Cobra

®

Power Inverter Works 

A3

Rechargeable Appliances

1

Quick Checkout 

2-3

Installation and Operation 

4

Controls and Indicators 

5

Operating Limits 

6

Input Voltage/Automatic Shutdown 

6

Troubleshooting Guide 

7

Maintenance and Service 

8-9

Power Consumption 

10

Specifications 11

Limited 2-Year Warranty 

12

1
2
3

4
5
5

6
7

8

9

10

Table of Contents

How Your Cobra

®

Power

Inverter Works

The Cobra

®

Power Inverter

takes low voltage DC (direct
current) power from your
automobile or other low
voltage power supply and
converts it to standard 
110 volt AC (alternating
current) power like the
electrical current you have 
in your home. Simply by
plugging your CPI 150 into
your vehicle’s cigarette lighter
socket, you can use many of
your household appliances and
electronic products in
automobiles, RVs, boats,
tractors, trucks, and virtually
anywhere else.

Customer Assistance

You can receive technical
assistance with your unit
through one of our customer
support services:

• 

Automated Help Desk

is available 24 hours a day, 
7 days a week at 
773-889-3087.

• 

Customer Service Operators

are available at 
773-889-3087 
Monday - Friday, 
8:00 a.m. to 6:00 p.m. CST.

Questions can be faxed

to 

773-622-2269.

• 

Automated Technical 
Assistance

is available 24 hrs.,

7 days a week via e-mail at: 
productinfo@cobra.com.

• 

On-line answers

to

frequently asked questions can
be found at: www.cobra.com 

For additional Customer Service
information, see page 8-9.

A3

 


background image

1

2

QUICK CHECKOUT

1

RECHARGEABLE APPLIANCES

Certain rechargers for small
nickel cadmium batteries
can be damaged if connected
to the CPI 150. Two types
of equipment are particularly
prone to this problem:

1.

Small battery operated 
appliances that can be 
plugged directly into 
an AC receptacle for 
recharging, including 
flashlights, razors, and 
night lights.

2.

Certain battery chargers for
battery packs used in hand
power tools, specifically 
those that have a 
WARNING label stating 
that dangerous voltages 
are present at the battery 
terminals.

Problems do not occur with
the vast majority of battery
operated tools, most of which
use a separate charger or
transformer that plugs into
an AC receptacle and
produces a low voltage
output. If the label on your
tool’s AC adapter or charger
states that is produces a low
voltage AC or DC output 
(less than 30 volts) you 
can safely power the charger
with your CPI 150. 

In order to check the
performance of your 
CPI 150 before installing it,
please have the following on
hand:

1.

A 12 volt DC power source 
(such as a vehicle battery)

2.

A test load such as a lamp 
or other small appliance 
that can be plugged into 
the AC receptacle on the 
inverter.

Power Source

You will need an 11 to 
15 volt DC power source
capable of supplying 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)
that the power source must
supply. A fully charged
standard automotive battery
will work fine.

Connecting to the 
Power Source

Your CPI 150 comes with a 
20 inch cigarette lighter plug
wire for connection to the
power source.

Do not connect to the
power source if flammable
fumes are present.
Explosion or fire may
result. Thoroughly ventilate
the battery compartment
before making a
connection.

2

CAUTION

WARNING

 


background image

4

2

QUICK CHECKOUT

Quick Checkout 

(continued)

To connect your inverter
to the power source:

1.

Push the inverter’s ON/OFF
switch to OFF.

2.

If the power source is a DC
power supply, switch it off.

3.

Insert the cigarette lighter
plug into your vehicle’s 
cigarette lighter.

4.

Plug the power cord from 
the test load into the 
inverter’s AC receptacle.

Testing

Turn on the inverter. It
should supply power to the
load. If the inverter does not
appear to work properly, refer
to the Troubleshooting Guide
on page 7.

3

AC 

Output

POWER

OFF

ON

FAULT

ON/OFF
switch

AC 

Output

POWER

OF

ON

FA

AC 
receptacle

The location where you install
your CPI 150 must be:

• 

dry

–Do not install the unit 

where water can drip or 
splash on it.

• 

cool

–Ambient air 

temperature should be 
between 30˚ and 105˚ F
(0˚ and 40˚ C). The cooler 
the better.

• 

ventilated

–Allow at least 

1 inch (3 cm) of clearance 
around the unit for proper 
air flow. Make sure that 
ventilation openings on the 
ends of the unit are not 
obstructed.

To prevent fire, do not cover
or obstruct ventilation
openings. Do not install the
unit in a zero-clearance
compartment. Overheating
may result.

The inverter must only 
be connected to batteries
with a nominal output
voltage of 12 volts. It will
not work with a 6 volt
battery, and will be
damaged if it is connected 
to a 16 volt battery.

Turning on Your 
Power Inverter

Turn on your CPI 150 by
pushing the ON/OFF switch 
to ON.  

The unit is now ready to
deliver AC power to your
loads.

AC 

Output

POWER

OFF

ON

FAULT

ON/OFF
switch

CAUTION

CAUTION

INSTALLATION • OPERATION

3

 


background image

4

CONTROLS & INDICATORS

5

OPERATING LIMITS 

INPUT VOLTAGE/AUTO SHUTDOWN

On/Off Switch

The ON/OFF switch turns the
control circuit in the inverter
on and off. It DOES NOT
disconnect power from the
inverter.

When the switch is in the OFF
position, the inverter draws
no current from the battery.
When it is the in ON position,
but no power is being
supplied to the load, the
inverter draws less than 
500 milliamperes from the
battery. This is low current
draw. It would take more 
than a week to discharge a
100 ampere-hour battery at
this draw rate.

You don’t have to worry about
excessive drain on a battery if
you leave the inverter
switched on for a few days.
However, you should switch it
off if you are not planning to
recharge the battery within
about a week.

Fault Indicator

The "fault" indicator of your
CPI 150 will light whenever
the unit detects excessively
high or low input voltage, or
begins to overheat.

5

AC 

Output

POWER

OFF

ON

FAULT

ON/OFF
switch

Power Output

Your CPI 150 will deliver 
150 watts continuously. It
can deliver 180 watts for
about 30 minutes, after
which it must cool for 
about 15 minutes before 
it can resume operation at 
150 watts. (

NOTE:

the

wattage rating applies to
resistive loads.)

Input Voltage

Your CPI 150 will operate
from input voltage ranging
from 10 to 15 volts.
Optimum performance occurs
when the voltage is between
12 and 14 volts.

If the voltage drops below
10.7 ± 0.3 volts, an audible
low battery alarm will sound.
The inverter will
automatically shut down if
the input voltage drops below

10.0 ± 0.3 volts.  This
protects the battery from
being over-discharged. The
inverter will restart when the
input voltage exceeds 12.0 ±
0.5 volts.

The inverter will also shut
down if the input voltage
increases to 15.0 ± 0.5 volts.
This helps protect the unit
from damage due to excessive
input voltage.  Although the
inverter is protected in this
way, it may still be damaged
should the input voltage
exceed 16 volts.

Automatic Shutdown

The unit will automatically go
into thermal shutdown if it
becomes overheated due to
excessive input voltage, poor
circulation or high ambient
temperature.

6

POWER

OFF

ON

FAULT

fault
indicator

 


background image

7

MAINTENANCE & SERVICE

6

TROUBLESHOOTING GUIDE

7

Maintaining Your
Inverter

Your CPI 150 requires very
little maintenance to keep it
operating properly. The
exterior of the unit should be
cleaned periodically with a
damp cloth to prevent
accumulation of dust and dirt.
At the same time, tighten the
screws on the DC input
terminals. Keep vents and fans
free from dust or debris.

Service

You can receive technical
assistance with your unit 
through one of our customer
support services:

• Automated Help Desk 

is available 24 hours a day, 
7 days a week at
773-889-3087.

• Customer Service Operators

are available at 
773-889-3087 
Monday throughFriday, 
8:00 a.m. to 6:00 p.m. CST.

• Questions can be faxed

to 

773-622-2269.

• Automated Technical 

Assistance 

is available 

24 hours, 7 days a week 
via e-mail at: 
productinfo@cobra.com.

• On-line answers

to 

frequently asked questions 
can be found at: 
www.cobra.com

8

Problem/

Possible Solution

Symptom

Causes

Low output voltage

Overload

Reduce the load.

No output voltage

Low input 

Recharge battery.

voltage

Check connections 

and cable.

Short circuit or

Check AC wiring for short 

wiring error

circuit or improper polarity.

No output voltage   High input

Make sure the inverter 

and "fault" 

voltage

is connected to a 

indicator is lit

12 volt battery.

Check regulation of 

charging system.

No output voltage 

Thermal

Allow inverter to cool down

when load is in    

shutdown

Improve ventilation—

excess of 150 watts 

make sure ventilation  

or 1.3 amperes

openings in the inverter 

are not obstructed. Lower  

ambient temperature.

Low battery   

Poor DC wiring,

Use proper cable. 

alarm sounds  

poor battery

Ensure good connections. 

continuously

connection

Use new battery. 

 


background image

9

7

MAINTENANCE & SERVICE

8

POWER CONSUMPTION

* up to 10 inch

Equipment

Power Operating Watt-Hours

Consumption

Time

(power X 

operating time)

Coffee grinder 100 watts

0.1 hour

10

TV*/VCR

115 watts

3 hours

345

Service 

(continued)

If you suspect that your unit
requires service, please call 
773-889-3087 BEFORE
shipping it to Cobra

®

. This

will ensure that you receive
service as quickly as
possible.

If you are asked to send your
unit to the Cobra

®

factory,

please follow these steps:

1.

Send the complete unit.

2.

For warranty repair, enclose

some form of proof-of purchase,
such as a photocopy or carbon
copy of a sales receipt. If you
send the original receipt, it
cannot be returned.

3.

Enclose a typed or clearly

written description of the
problem you are having with
your unit, plus the name and
address where you want the
unit returned.

4.

Pack the unit securely to

prevent damage during transit.
If possible, use the original
packing materials.

5.

Ship prepaid and insured

using a traceable carrier such as
United Parcel Service (UPS),
Federal Express, or first class
mail with delivery confirmation.
Ship to: 

Cobra

®

Factory Service,

Cobra Electronics Corporation,
6500 West Cortland Street, 
Chicago, IL 60707 USA
6.

Please allow 3-4 weeks

before contacting us about the
status of your service. Call
773-889-3087 for assistance.
If your unity is under
warranty, it will either be
repaired or replaced upon
receipt, depending on the
model. If your unit is out of
warranty, you will receive a
letter informing you of the
repair or replacement charge.

For each piece of equipment
you will be powering with
your CPI 150, you must
determine the battery’s
capacity (how long the
battery can deliver a specific
amount of current). For
example, automotive 
batteries usually provide 
25 amperes of current. A
battery with a reserve
capacity of 180 minutes 
can deliver 25 amperes for
180 minutes before it is
completely discharged.

Calculate the total watt-hours
of energy consumption
(power X operating time),
then divide the watt-hours 
by 10 to determine how may
12 volt ampere hours will be
consumed.

10

 


background image

12

10

LIMITED 2-YEAR WARRANTY

©

Cobra Electronics Corporation

6500 West Cortland Street
Chicago, Illinois 60707 USA

2

Cobra Electronics Corporation warrants
that its Cobra

®

Power Inverter, and the

component parts thereof, will be free
of defects in material and workmanship
for a period of two (2) years from the
date of consumer purchase. This
warranty may be enforced by the first
consumer purchaser, provided that the
product is utilized within the U.S.A.
Cobra

®

will, without charge, repair or

replace, at its option, a defective
inverter upon delivery to the Cobra

®

Factory Service Department,
accompanied by proof of the date of
first consumer purchase, such as
duplicated sales receipt.
You must pay initial shipping
charges required to ship the product
for warranty service, but the return
charges will be at Cobra’s expense, if
the product is repaired or replaced
under warranty.
This warranty gives you specific
legal rights, and you may also 
have other rights which vary 
from state to state.

Exclusions: This limited warranty
does not apply 1) to any product
damaged by accident; 2) in the
event of misuse or abuse of the
product or as a result of
unauthorized alterations or repairs;
3) if the serial number has been
altered, defaced or removed; 4) if
the owner of the product resides
outside the U.S.A.
All implied warranties, including
warranties of merchantability and
fitness for a particular purpose are
limited in duration to the length of
this warranty. 
Cobra

®

shall not be liable for any

incidental, consequential or other
damages; including, without
limitation, damages resulting from
loss of use or cost of installation.
Some states do not allow limitations
on how long an implied warranty lasts
and/or do not allow the exclusion or
limitation of incidental or
consequential damages, so the above
limitations may not apply to you.

9

SPECIFICATIONS

11

Specifications

1.

Continuous output power (4 hours)

150w

2.

Continuous output power (30 minutes)

180w

3.

Surge rating (0.1second)

300w

4.

Peak efficiency (12V—1/2 load)

90%

5.

Efficiency (full load, 12V)

>83%

6.

No load current draw

< 0.1 A (12.6V)

7.

Output waveform (resistive load)

Perfect modified 

sine wave

8.

Output frequency

60HZ±2HZ

9.

Output voltage

110V+/-5%

10. Input voltage

10-15 VDC

11. Alarm voltage (unload)

10.7 V ±0.3V

12. Shutdown voltage (unload)

10.0V ±0.3V

13. Operating temperature range

-10° C-40° C

14. Storage temperature range

-40° C to 85° C

15. Protection Overload, short-circuit, Overtemp

16. Reverse polarity, under/over voltage

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. 
The unit is completely 
insulated in input and output 
for added safety.

 


background image

Printed in China
Part No. 480-031-P

The Cobra

®

line of 

quality products includes:

CB radios

microTALK

®

radios

Radar/Laser Detectors

Safety Alert

®

Traffic Warning Systems

Accessories

HighGear

Accessories

For more information about 

our products, or to order online 

please visit our website:

www.cobra.com

Click “shop Cobra”

Nothing comes close to a Cobra™

©

2002 Cobra Electronics Corporation

6500 West Cortland Street

Chicago, IL 60707 USA