10273_CPI875_PH2 7/10/07 6:04 PM Page 14

Troubleshooting Guide

Operation

Troubleshooting Guide

•

 

 

 

Problem/Symptom

Possible Causes

Solution

Low output voltage

Overload

Reduce the load.

 

No output voltage

Low input voltage

Recharge battery.

 

 

 

Check connections

 

 

 

and cable.

 

No output voltage

Thermal

Allow inverter

after prolonged use

shutdown

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.

 

No output voltage,

High input

Make sure

“Protect” indicator

voltage

the inverter is

lighted

 

connected to

 

 

 

12V battery.

 

 

 

Check regulation

 

 

 

of charging system.

 

No output voltage

Short circuit

Check load for

 

 

 

proper operation.

 

 

 

No output voltage

Inverter

Turn inverter on.

 

 

 

switched off

 

 

 

 

No power

Check wiring

 

 

to inverter

to inverter.

 

 

 

Reverse

Observe

 

 

DC polarity

correct polarity.

 

Low battery alarm

Poor DC wiring

Check

on all the time

 

connections.

 

 

Poor battery

Make sure battery

 

 

condition

is fully charged.

Specifications

Operation

Specifications

•

Continuous output power (1 hour) . . . . . . . . . . . . 800W Surge rating (0.1 second) . . . . . . . . . . . . . . . . . . 1600W Peak efficiency (12V – 1⁄2 load) . . . . . . . . . . . . . . > 88% Efficiency (full load, 12V) . . . . . . . . . . . . . . . . . . . > 83% No load current draw . . . . . . . . . . . . . . . < 0.5A (12.6V) Output waveform (resistive load) . . . Modified sine wave Output frequency . . . . . . . . . . . . . . . . . . . . 58HZ – 62HZ Output voltage . . . . . . . . . . . . . . . . . . . . . . 109V – 120V USB output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5V Input voltage . . . . . . . . . . . . . . . . . . 10.4VDC – 14.4VDC Alarm voltage (unload) . . . . . . . . . . . . . . .10.2V – 10.8V Shutdown voltage (unload) . . . . . . . . . . . . . 9.2V – 9.8V Operating temperature range . . . . . . . . . . . . 0°C – 40°C

(32°F – 104°F) Storage temperature range . . . . . . . . . . . . -40°C – 85°C (-40°F – 185°F)

Protection . . . . . . . . . .Overload, short-circuit, overtemp, 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.

To extend the life of the fan, it will stop when there is no load. The speed of the fan increases as the load increases.

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

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Cobra Electronics CPI 875 warranty Troubleshooting Guide, Specifications, Solution
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CPI 875 specifications

The Cobra Electronics CPI 875 is a distinguished power inverter designed to convert DC power to AC power, making it an invaluable tool for both recreational and emergency use. This compact inverter delivers 875 watts of continuous power and is capable of handling peak loads of up to 1750 watts. This attribute makes it suitable for powering essential devices such as laptops, smartphones, small appliances, and even small tools.

One of the remarkable features of the CPI 875 is its user-friendly design. The inverter is equipped with an easy-to-read LED display that provides vital information about battery voltage and output wattage. This helps users monitor power consumption in real-time, ensuring that devices do not exceed the inverter’s capabilities. Additionally, the CPI 875 comes with built-in protections against overloads, overheating, and short circuits, providing peace of mind during operation.

The inverter uses advanced technology to ensure efficient power conversion. Its modified sine wave output is effective for running most electronics and appliances, though it is crucial for users to verify compatibility with sensitive devices. The compact size and lightweight design of the CPI 875 mean it can be easily transported in vehicles or stored conveniently at home.

Another key characteristic is its versatility. The CPI 875 features dual AC outlets, enabling users to power multiple devices simultaneously. Moreover, it includes a built-in USB port for charging smartphones and tablets directly, enhancing its functionality in today’s tech-driven world.

The CPI 875 operates quietly and has a reputation for reliability, making it an ideal power solution for camping trips, RV use, or as a backup power source during outages. Its durable and rugged construction ensures that it can withstand the rigors of outdoor environments, making it a favored choice among outdoor enthusiasts.

In conclusion, the Cobra Electronics CPI 875 power inverter stands out due to its impressive power output, advanced safety features, user-friendly design, and versatility. Whether you’re on the road, enjoying the great outdoors, or preparing for unforeseen power outages, the CPI 875 is a reliable and efficient choice for all your power needs.
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