Neilsen CT1398 User manual

2000W POWER INVERTER CT1398
Ref no. CAR2K
3500W POWER INVERTER CT1399
Ref no. CAR3.5K
INSTRUCTION MANUAL
IMPORTANT:
These instructions accompanying the product are the original instructions. This
document is part of the product, keep it for the life of the product passing it on to
any subsequent holder of the product. Read all these instructions before
assembling, operating or maintaining this product.
Cannon Tools Limited
Address: 20 Station Road, Rowley Regis, West Midlands, B65 0JU.U.K.

EC DECLARATION OF CONFORMITY
We CANNON TOOLS LTD
20 Station road, Rowley Regis, West Midlands,B65 0JU.U.K.
Declare that the following machine complies with the appropriate basic safety
and health requirements of the EC Directive based on its design and type, as
brought into circulation by us.
In case of alteration of the machine, not agreed upon by us, this declaration will
lose its validity.
Product description: 2000W POWER INVERTER
Model: CT1398(Ref no. CAR2K)
Product description: 3500W POWER INVERTER
Model: CT1399(Ref no. CAR3.5K)
Applicable EC Directives:
GPSD Directive - The General Product Safety Directive 2001/95/EC
EC Directive of Electromagnetic Compatibility 2014/30/EU
Harmonized standards
EN 62368-1:2014+A11:2017
EN 55032:2015+A11:2020, EN 55035:2017+A11:2020,
EN 61000-6-3:2007+A11:2011, EN 61000-6-1:2019
20 Station Road, Rowley Regis, West Midlands, B65 0JU.U.K.
Mr. Gurcharan Tony Singh Sanghera
Managing Director
CANNON TOOLS LTD
2020-10-29

1. INTRODUCTION
Thanks for your purchasing our car and p series power inverter.
Our power inverters are compact and high efficient inverters, and it is the leader
in the field of high frequency inverters.
Our power inverter converts low voltage, direct current (DC) to 220-240 volt
modified sine wave (MSW)or pure sine wave(PSW) alternating current( AC).
By connecting the power inverter directly to the 12V battery, you can turn your
vehicle into a mobile office, or have power to run entertainment electronics.
Read this guide before install and use the power inverter, and please reserve it
for future reference.
2. SPECIFICATION
Model
CT1398
CT1399
Output
Rated power
2000W
3500W
Surge power(few seconds)
4000W
7000W
Voltage (AC)
220-240V
AC Voltage Regulation
10%
Frequency(Hz)
50Hz
Waveform
modified sine wave
USB port
5V, Max. 2.1A
Efficiency
≥85%
Input
Voltage(DC)
12V
Protection
Function
Low Voltage Shutdown
12V
10.5±0.5V
Low Voltage alarm
11.5±0.5V
Over Voltage shutdown
15.5±0.5V
Short Circuit Protection
Shutdown and cutout the output
Over Temperature Shutdown
Shutdown and cutout the output
Polarity Reverse Protection
By internal fuse open
Overload Protection
Shutdown and cutout the output
Earth leakage Protection
Shutdown and cutout the output
Operation temperature range
-20 oC+45 oC
Others
Cooling Fan
Factory default is by 10%~20% AC load,
temperature control is optional
Unit Dimensions(L x W x H)
35.5x23x10.8cm
53x23x10.8cm

3. IMPORTANT SAFETY INSTRUCTIONS
Important：Read and save this owner’s guide for future reference.
This chapter contains important safety and installation instructions for our MS
and MSD series power inverters. Each time, before using the power inverter,
read all instructions and cautionary marking on or provided with inverter and all
appropriate sections of this guide.
! DANGER - Electrical Shock Hazard
。Do not expose the inverter to rain, snow, spray, or bilge water. This inverter is
designed for indoor use only.
。Do not operate the inverter if it has received a sharp blow, been dropped, has
cracks.
。Do not disassemble the inverter. Internal capacitors remain charged after all
power is disconnected.
。Disconnect both AC and DC power from the inverter before attempting any
maintenance or cleaning or working on any circuits connected to the inverter.
See note below.
。Do not operate the inverter with damaged or substandard wiring.
。Make sure that all wiring is in good condition and is not undersized.
。Fail to follow these instructions will result in death or serious injury.
Notes: Turning off the inverter using the ON/OFF switch on the front panel will
not reduce an electrical shock hazard.
! DANGER - Fire And Burn Hazard
。Do not cover or obstruct the air intake vent openings and /or install in a
zero-clearance compartment.
。Do not use transformer less battery chargers in conjunction with the inverter
due to overheating.
Fail to follow these instructions will result in death or serious injury.
! DANGER - Explosion Hazard
。Charge only properly rated (such as 12V) lead-acid (GEL, AGM, Flooded, or
lead-calcium) rechargeable batteries because other battery types may explode
and burst.
。Do not work in the vicinity of lead-acid batteries. Batteries generate explosive
gases during normal operation.
。Do not install and /or operate in compartments containing flammable materials
or in locations that require ignition-protected equipment.
Fail to follow these instructions will result in death or serious injury.

Notes:
1. Follow these instructions and those published by the battery manufacturer
and the manufacturer of any equipment you intend to use in the vicinity of the
battery. Review cautionary markings on these products and on the engine.
2. The inverter contains components which tend to produce arcs or sparks.
3. Locations include any space containing gasoline-powered machinery, fuel
tanks, as well as joints, fittings, or other connections between components of
the fuel system.
Precautions when placing the inverter
CAUTION - Risk Of Damage To The Inverter
。Never allow battery acid to drip on the inverter when reading gravity, or filling
battery.]
。Never place the inverter unit directly above batteries, gases from a battery will
corrode and damage the inverter.
。Do not place a battery on top of the inverter.
。The inverter will not operate high wattage appliances over the output power limit
or surge power limit.
。This is not a toy-keep away from children.
Fail to follow these instructions can damage the unit and/or damage other
equipment.

4. PROTECTION FEATURES
Our power inverters are equipped with numerous protection features to
guarantee safe and trouble-free operation:
Low battery alarm
Alerts you if the battery has become
discharged to 10.5V or lower.
Low battery voltage shutdown
Shuts the inverter down automatically if
the battery voltage drops below 9.5
volts. This feature protects the battery
from being completely discharged.
High battery voltage shutdown
Shuts the inverter down automatically if
the input voltage rises to 15.5 volts or
more.
Over load shutdown
Shuts the inverter down automatically if
the loads connected to the inverter
exceed the inverter’s operating limits.
Over thermal shutdown
Shuts the inverter down automatically if
its internal temperature rises above an
unacceptable level.
Output short circuit shutdown
Shuts the inverter down automatically if
a short circuit is detected in the
circuitry connected to the inverter’s
output.
Reverse polarity protection
If wrong polarity connection, the
internal fuse shall blow out.
Earth Fault Protection
The inverter complies with the
standard current leakage allowance.
When large current leakage to earth
terminal occurs, the protection circuit
activated and shut down the inverter,
which prevent electric shock to human.
Turn off the inverter, unplug the fault
AC appliances and then turn ON is the
only way to restart it.
Notes: All protection is automatically recovered. To protect the battery, if the unit needs to be
restarted after lower voltage protection, the voltage of DC input factory setting: modified sine
wave inverter is 11.8V.

5. LOCATION
The power inverter must only be installed in a location that is:
Dry
The inverter must be installed in a dry location not subject to moisture especially
rain, spray, or splashing bilge water.
Cool
The inverter should not be exposed to metal fillings or any other form of
contamination.
Ventilated
The ambient air temperature should be between 0-40℃(32-104℉) for best
performance.
Safe
Ventilation openings on the inverter must not be obstructed. If the inverter is
mounted in a tight fitting compartment, the compartment must be ventilated with
cut-outs to prevent the inverter from overheating.
Close to battery
The inverter is not ignition-protected equipment, so it cannot be installed in areas
containing gasoline tanks or fittings which require ignition –protected equipment.
We recommend that it is safest not to install any kind of electrical equipment
including the inverter in these areas.
Protected from battery gases
The inverter should be installed as close as possible to the batteries, but not in
the same compartment to prevent corrosion. Avoid excessive cable lengths and
use the recommended wire sizes. We recommend that installing with battery
cables sized to achieve less that 3% voltage drop on battery cables under full
load. This will maximize the performance of the inverter.
6. PRINCIPLE OF OPERATION
There are two working stages in the power inverter:
.The first stage: it is a DC to DC conversion process that raises the lower
voltage DC at the inverter input to 300volts DC.
.The second stages: it is a actual inverter stage that convert the high voltage
DC into 110volts or 220volts AC (rms).The DC to DC convert stage uses modern
high frequency power conversion techniques that have replaced the bulky
transformers found in less technology-advanced models. The inverter stage uses
advanced power MOSFET transistors in a full bridge configuration.

7. INVERTER MATERIALS LIST AND INDICATION
Materials List
There is power inverter unit, user manual, DC cables and spare fuse inside of
packing.
1.1 Modified sine wave power inverter CT1398 CT1399
Indication:
1) AC outlets are used to power loads.
Please see the picture as follows, the output AC output type optional.
2) ON/OFF Switch turns the inverter’s on and off.
3) Fault light (red) indicates that the inverter has shutdown due to inverter
overload, over temperature, short circuit, leakage or fault happen.
4) Power light (green) indicates the inverter is operating.
5) USB port it output DC5V 2.1A, connect the USB external appliance to USB
port and switch it on. The USB output on the power inverter provides a supply of
5V DC power for USB external appliances (e.g. lights, fans, radios).
The USB output is permanently on when the power inverter is connected to a
12V input voltage.
Warning: The USB port on the power is not designed for transferring data.
●Do not connect memory sticks, MP3 player or similar data storage external appliances.
●Do not connect any data transfer cables to the USB port!
6) Negative DC input terminal (-) always connects to the negative terminal of

the battery via a negative DC input cable (black battery cable).the negative DC
input terminal is colored black.
7) Positive DC input terminal(+) always connects to the positive terminal of the
battery via a positive DC input cable (red battery cable).the positive DC input
terminal is colored red.
Warning: Do not reverse polarity connection, the wrong connection will result in a
blown fuse and may cause permanent damage to the inverter.
8) Chassis ground screw grounding the earth by use wire.
9) High- speed cooling fan must not be obstructed for the proper operation of
the inverter. When the inverter is mounted, then ventilation opening on the DC
panel must not point up or down.
10) DC cable with ring, there is two DC cable connections in inverter; two
cables included the positive and one negative. Please connect the ring in red
cable to red terminal on inverter and the ring in another side to battery. Do same
way in black cable.
11) Fuse: have internal fuse inside the inverter.
Notes: The fuse for reverse polarity protection, the fuse shall blow out if wrong
connection, after the fuse be replaced, the inverter shall be able to work again. If
the inverter still doesn’t work properly, please contact technicians.

8. THE INVERTER’S OUTPUT WAVEFORM
The AC output waveform of the CAR series inverter is known as “modified sine
wave”
Modified sine wave and pure sine wave comparison
The modified sine wave has an RMS (Root mean square) voltage of 220-240
volts, which is the same as standard household power. Most AC voltmeters (both
digital and analog) are sensitive to the average value of the waveform rather than
the RMS value. They are calibrated for RMS voltage under the assumption that
the waveform measured will be a pure sine wave. These meters will not read the
RMS voltage of a modified sine wave correctly. They will read about 20 to 30
volts low when measuring the output of the inverter. For accurate measurement
of the output voltage of this unit, use a true RMS reading voltmeter such as Fluke
87III, Fluke 8060A, Fluke 77/99 series or Beckman 4410.
Interference With Some Equipment
. Buzz in Audio Equipment
Some inexpensive stereo systems may emit a buzzing noise from their
loudspeakers when operated from the inverter. This occurs because the power
supply in the audio
System does not adequately filter the modified sine wave produced by the
inverter.
The only solution is to use a sound system that has a high quality power supply.
.Television Reception
When the inverter is operating, it can interfere with television reception on some
channels. If interference occurs, try the following:

1. Make sure that the chassis ground screw on the rear of the inverter is solidly
connected to the ground system of your vehicle or home.
2. Make sure that the television antenna provides an adequate (“snow-free”)
signal and that you are using good quality cable between the antenna and
the television.
3. Keep the cables between the battery and the inverter as short as possible,
and twist them together with two to three twists per foot.( this minimizes
radiated interference from the cables.)
4. Move the television as far away from the inverter as possible.
5. Do not operate high power loads with the inverter which the television is on.
9. CHOOSE THE BATTERY
9.1 Battery Requirements
Battery type and battery size strongly affect the performance of the power
inverter. Therefore, you need to identify the type of loads your inverter will be
powering and how much you will be using them between charges. To determine
the minimum battery size that you need to operate appliances, follow these
steps:
1. Determine the wattage of each appliance and/or tool you will need to
simultaneously operate from the inverter. To do this, read the labels on the
requirement to be operated. Usually, power consumption is shown in watts. If
it is shown in amps, multiply by 220-240V to determine the wattage.
2. Estimate the number of hours the equipment will be in use between battery
recharges.
3. Determine the total watt-hours of energy use, the total running time and the
average power consumption power (in watts) by 10 in 12V system.
4.
To calculate the approximate power a 12 volt battery bank has to supply in amps,
you need to know the current, or amps required for powering the continuous AC
load. A easy method is to divide the continuous AC load wattage by 10.
For example, the continuous AC load is 2000 watts, the current (amps) is:
2000/10 or 200amps at 12VDC.
Notes: some appliances required high surge power to start, then consumer less
power. And some appliances are not operating for long periods of time. For
example, a typical home-use coffee maker draws 500watts during its brew time
of 5minutes, but it maintains the temperature of the pot at about 100watts.
Typical use of a microwave is only a few minutes, sometimes at lower power;

some exceptions to brief operating times are lamps, TVs and computers.
Important: The power inverter must be connected only to batteries with a normal
output voltage of 12 volts when you use a 12V inverter. The unit will not operate
from a 6 volt battery, and will sustain permanent damage if connected to a 24 volt
battery.
Caution: Loose connectors may cause overheated wires and melted insulation.
Check to make sure you have not reversed the polarity. Reverse polarity
connection will result in a blown fuse and may cause permanent damage to the
inverter.
9.2. The calculation of the battery’s back up time
The battery’s back up time depends on the battery capacity (Ah) and your
appliances power (Watt)
The method to calculate the backup time:
Battery capacity (Ah) * Input voltage (Volt)/loads power (Watt)
For example:
Battery capacity = 150Ah
Input voltage = 12Volt
Loading power = 600Watt
So:
(150Ah*12V)/600Watt=3 hours
Note: the time calculated by this way is a theory value; the actual using time may
shorter than this value.
9.3. Recharging Batteries
If possible, recharge your batteries when they about 50% discharged or earlier.
This gives the batteries a much longer life cycle than recharging when they are
deeply discharged.
Our inverter has a battery low voltage shutdown around 10Vdc.With moderate to
heavy loads, this will protect against over-discharging the battery. if the inverter is
running only light loads it is advisable to recharge before the inverter low voltage
shutdown point is reached.
For more information on maintaining batteries, consult your battery’s
manufacturer.
For information about our battery chargers, please contact us.
9.3.1 Batteries Wiring
a). Series Wiring

Wiring batteries in a series increases the total battery bank output voltage. A
series connection combines each battery in a string until the voltage matches the
inverter’s DC requirement. Even though there are multiple batteries, the capacity
remains the same. In the example below , two 6VDC/200Ah batteries are
combined into a single string-resulting in a 12VDC /200Ah bank.
b). Parallel Wiring
Wiring the batteries in parallel increases the total run time the batteries can
operate the AC loads. A parallel connection combines overall battery capacity by
the number of batteries in the string. Even though there are multiple batteries,
the voltage remains the same. In the example below , four 12 VDC/100Ah
batteries are combined into a single 12VDC/400AH battery bank.
c). Series –Parallel Wiring

A series-parallel configuration increases both voltage (to match the inverter’s DC
requirements) and capacity (to increase run time for operating the loads) using
smaller, lower voltage batteries. In the example below, four 6 VDC/200Ah
batteries are combined into two strings resulting in a 12VDC/400Ah battery bank.
9.4. Best use of Battery Power
Make sure any appliances are energy efficient and turned off after use.
Use Compact Florescent Lamps. Wherever possible, charge with solar panels or
wind generators.
Do not allow lead acid batteries to remain discharged for long periods of time,
they lose capacity (amps hours).
10. MOUNTING AND CONNECTING THE INVERTER
10.1. Mounting The Inverter
Warning: Keep ventilation when using batteries. Batteries may generate
flammable gas during charging or discharging.
The inverter (1000W to 5000W models) has four slots in its mounting bracket
that allow the unit to be fastened against a bulkhead, floor, wall or other flat
surface. Ideally, the mounting surface should be cool to the touch.
It is more electrically efficient to use longer AC wiring than DC wiring, so install
the inverter as close as possible to the 12 VDC power source.
The inverter can be operated in any position, however, if it is to be mounted on a
wall, mount it horizontally so that indicators, switches, outlets and terminal blocks

located on the front panel are visible and accessible. If inverter is to be installed
in a moving vehicle, we strongly recommends that the inverter be
shock-mounted either on the floor (in a clear, safe area) or on a secure flat
surface.
10.2. System Connection:
When you connect the battery with inverter, please remember to connect the
correct volts(e.g.12V inverter connect with 12 volts batteries.)
The inverter will provide you 220-240VAC when powered by a 12V DC source.
This manual does not describe all of the possible types of battery configurations,
battery charging configuration and battery isolation configurations. The figure as
below show the typical connection.
Note: For safety concern, you can connect a DC-rated fuse or a DC-rated circuit
Breakers on the positive line in your power system, following these
recommendations when you purchasing fuses or circuit breakers.
Select a fuse or circuit breaker with a proper rating(e.g.:1000W advice 150A DC,
1500W advice 200A Dc)
Determine the short-circuit current rating of the battery and choose a battery
fuses that withstand the short circuit current that may be generated by the
battery.
10.3. Connection And Installation Steps

a). Check to be sure the inverter’s power switch is turned off and that no
flammable fumes are present.
b). Identify the positive (+) and negative (-) battery terminals.
c). Install a fuse holder or breaker close to the positive (+) terminal of the battery.
d). Connect a length of wire on one side of the fuse holder or circuit breaker.
Connect the other end of the wire to the positive (+) terminal of the inverter.
e). Connect a length of wire between the inverter’s negative (-) terminal and the
battery’s negative (-) terminal.
f). Connect a short length of wire to the other terminal of the fuse holder or circuit
breaker. Mark it “positive” or “+”.
g). Connect the free end of the fuse or breaker wire to the positive terminal of the
battery.
h). Insert a suitable fuse in the fuse holder.
i). Check to be sure that all connections between battery clips, terminals and
fuses are secure and tight.
Notes: Sparking is normal for the first connection.
Make sure you have good secure connections- Do not over-tighten.
11. OPERATING THE AC APPLIANCES
1. When you have confirmed that the AC appliances to be operated is turned off,
plug an appliance cord into the AC outlet on the front panel of the inverter.
2. Turn ON the inverter.
3. Turn the appliance on.
4. Plug in additional appliances and turn them on.
Notes:
1. Plug the cord from the AC appliances you wish to operate into the AC
receptacle. When turn ON the inverter. The Red and Green LED both lit for
3~5seconds then red LED not lit, green LED indicator lights to indicate that
the inverter is functioning. Make sure the combined load requirement of your
equipment does not exceed inverter’s output rating.
2. Turn OFF the inverter. The over load LED may briefly “blink” and the audible
alarm may also sound a short” chirp.” This is normal. This same alarm may
also sound when the inverter being connected to or disconnect from the
battery.
3. When using an extension cord from the inverter to an appliance the
extension cord should not be longer than 50 feet.
4. When you plan to operate more appliances, please make sure plug and
switch ON the biggest one first and then smaller one.

Caution: The inverter is engineered to be connected directly to standard
electrical and electronic equipments. Do not connect the power inverter to
household or RV AC distribution wiring.Do not connect the power inverter to any
AC load circuit in which the neutral conductor is connected to ground(earth) or to
the negative of the battery source.
Warning: Do not connect to AC distribution wiring.
Operating Tips
Rated versus actual current draw of equipment
Most electrical tools, appliances and audio/video equipment have labels that
indicate the power consumption in amps or watts. Be sure that the power
consumption of the item you wish to operate is less than inverter’s rating
power.( if the power consumption is rated in amps, simply multiply by the AC
volts( 220-240V) to determine the wattage). The inverter will shutdown if it is
overloaded. To overload must be removed before the inverter will restart.
Resistive loads are the easiest for the inverter to run. However, larger resistive
loads, such as electric stoves or heaters, usually require more wattage than the
inverter can deliver. Inductive loads, such as TV’s and stereos, require more
current to operate than do resistive loads of the same wattage rating. Induction
motors, as well as some televisions, may require 2 to 6 times their wattage rating
to start up. The most demanding in this category are those that start under load,
such as compressors and pumps. To restart the unit after a shutdown due to
overloading, remove the overload if necessary turn the power switch OFF then
ON.

12．FUSE REPLACEMENT
The inverter protected by our integral electronic circuit and will automatically
reset.
More than that, this inverter is equipment with a fuse that is located inside the
inverter. If reverse polarity connection, the fuse burn. Please you need open the
bottom to replace the fuse. There are some spare fuses inside of inverter’s
packing.
Please replace the fuse by same size as burn one. Normally after you replace
the new fuse, the inverter recovers automatically. But sometimes there is a kind
of special condition, even after you replace the new fuse, the inverter still not
working properly, then please you need contact technician to find and fix the
problems.
Caution: High voltage and high temperature inside!
Remark:To replace the fuse, please open the fuse case on the input side board.
Then replace the fuse. Try to find out the cause of the problem before attempting
to use the unit again.