Cru Power E-1000 Manuel - Page 2

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The neutral (common) conductor of the power

inverter AC output circuit is connected to the

chassis ground. Therefore, when the chassis is

connected to ground, the neutral conductor will

also be grounded. This conforms to national

electrical code requirements that separately

derived AC sources (such as inverters and

generators) have their neutral tied to ground in

the same way that the neutral conductor from the

utility line is tied to ground at AC breaker panel.

！

Caution!

The negative DC input of the power inverter is

connected to the chassis. Do not install the

power inverter in a positive ground DC system.

A positive ground DC system has the positive

terminal of the battery connected to the chassis

of the vehicle or to the grounding point.

！

Warning!

Do not operate the power inverter without

connecting it to ground. Electrical shock hazard

may result.

Operation

To operate the power inverter, turn it on using the

ON/OFF switch on the front panel. The power

inverter is now ready to deliver AC power to your

loads. If you are operating several loads from the

power inverter, turn them on separately after the

inverter has been turned on. This will ensure that

the power inverter does not have to deliver the

starting currents for all the loads at once.

Remote Control:

The ON/OFF switch turns the control circuit in the

power inverter on and off.

When the switch is in the OFF position, the power

inverter draws no current from battery. When the

switch is in the ON position but with no load, the

power inverter draws less than 600mA

(12V version) or 300 mA (24V version) from

battery.

1. Battery voltage indicator

The battery voltage graph indicates the voltage

at the input terminals of the power inverter. At low

input current, this voltage is very close to the

battery voltage. At high input current, this voltage

will be lower than the battery voltage because of

the voltage drop across the cable and connections.

Ideally, the voltage should remain in the green

area of the bar graph. If the voltage goes into the

red area at top and bottom of the graph, inverter

may shutdown.

2. Load percentage indicator

The load watts grap indicates the watts of the

appliances you use.

If the load goes into the red area at top, inverter

may shut down.

3. Overtemp indicator

The overtemp indicator indicates that the power

inverter has shut itself down because it is

overheated. The power inverter may overheat

because it has been operated at power levels

above its rating, or because it has been installed

in a location which does not allow it to dissipate

heat properly.

Please turn on the inverter again when it cools

down.

4. Overload indicator

The overload indicator indicates that the power

inverter has shut itself down because its output

circuit has been short circuited or drastically

overloaded.

Turn off the inverter, correct the fault condition

or reduce load, then turn on the inverter and try

again.

Operating limits

1.Input voltage

The power inverter will operate from input voltage

ranging 10V-15V (12V ver.) or 20V - 30V (24V ver.).

If the voltage drops below 10.5V (12V ver.) or

21.0V (24V ver.), an audible low battery warning

will sound and the voltage indicator will be in the

lower red zone.

The power inverter will shut down

if the input voltage drops below 10V (12V ver.) or

20V (24V ver.). This protects your battery from

being over discharged.

The power inverter will also shut down if the input

voltages exceed 15V (12V ver.) or 30V (24V ver.).

This protects the inverter against excessive input

voltage indicator will be in the upper red zone.

Although the power inverter incorporates protection

against over voltage, it may still be damaged if the

input voltage is allowed to exceed 20V (12V ver.)

or 40V (24V ver.).

※The error of above spec is ±0.5V

Troubleshooting

1.Common problems

Buzz in audio systems:

Some inexpensive stereo systems and "boom

boxes" will emit a buzzing noise from their

loudspeakers when operated from the power

inverter. This is because the power supply in

the device does not adequately filter the modified

sine wave produced by the power inverter.

The only solution is to use a sound system that

incorporates a higher quality power supply.

Television interference:

Operation of the power inverter can interfere with

television reception on some channels. If this

situation occurs, the following steps may help to

alleviate the problem.

-Make sure that the chassis ground lug on the

back of the power inverter is solidly connected

to the ground system of your vehicle, boat or home.

-Do not operate high power loads with the power

inverter while watching television.

-Make sure that the antenna feeding your

television provides an adequate ("snow free")

signal and that you are using good quality cable

between the antenna and the television.

-Move the television as far away from the power

inverter as possible.

-Keep the cables between the battery and the

power inverter as short as possible and twist them

together with about 2 to 3 twists per foot. This

minimizes radiated interference from the cables.

2.Troubleshooting guide

Problem

possible cause

1.Make sure that inverter

No Output voltage

cable connects to battery

well

No voltage indicator

2.Internal fuse blown out

Inverter shuts down

Overload

and overload light

shows

Inverter shuts down

and overtemp light

Overtemperature

shows

Low battery alarm

Battery volt is low

Maintenance

Very little maintenance is required to keep your

inverter operating properly. You should clean

the exterior of the unit periodically to prevent

accumulation of dust and dirt. At the same time,

tighten the screws on the DC input terminals.

Warranty

We offer 12 monts warranty from the date of

purchase and will repair or replace any defective

power Inverter, this limited warranty is void if the

unit is abused, modified, installed improperly, if the

housing has been removed, if the serial number is

missing, or if the original identification markings

have been defaced, altered, or removed. The

supplier is not liable for any incidental,

consequential or other damages arising from the

use, cost of removal, installation, or troubleshooting

of thw customer's electrical systems.

This is only warranty and the company makes

no other warranties, express or implied, including

warranties of merchantability and fitness for a

particular purpose.

Repair or replacement are your sole remedies

and shall not be liable for damages, whether

direct, incidental, special or consequential, even

though cause by negligence or other fault.

Rear view

Battery terminals

Connect to battery or

other power source.

"+" is positive（Red）,

" is negative（Black）.

Reverse polarity connection

will blow internal fuse and

may damage inverter

permanently.

solution

1.Re-set the cable

2.Change new fuse

Reduce load

Improve ventilation

reduce inverter

temperature

or let it cool down

naturally

Charge battery

Ventilation

window