PowerTech MI5740 User manual

Instruction Manual
2000W 12VDC to
230VAC Pure Sine
Wave Inverter
MI5740

2
CONTENTS
Warnings & Safety Information ................................................................. 3
Before First Use.................................................................................................4
Box Contents......................................................................................................4
Product Diagram ..............................................................................................4
Inverter Information ........................................................................................ 5
Using the Remote Control ...........................................................................6
Troubleshooting ................................................................................................6
Specifications..................................................................................................... 7
Warranty Information.....................................................................................8

3
WARNINGS & SAFETY INFORMATION
• Please read and understand this manual before installing and using this
inverter.
• Do not connect to equipment that exceeds the inverter’s specified power
rating
• Permanent damage may occur that will not be covered by the warranty.
• Place the inverter on a reasonably flat surface, either horizontally or
vertically.
• The inverter should not be installed in the enginer compartment, due
to possible water/oil/acid contamination, and excessive heat under the
bonnet, as well as potential danger from petrol fumes and the spark that
an inverter can occassionally produce. It’s best to run battery cables to a
dry, cool mounting location.
• Keep the inverter dry. Do not expose it to rain or moisture. DO NOT
operate the inverter if the inverter, the device being operated, or any
other surfaces that may come in contact with any power source are wet.
Water and many other liquids can conduct electricity which may lead to
serious injury or death.
• Do not operate the inverter in dusty environments. Keep the fan clean
and free of dust.
• Avoid placing the inverter on or near heating vents, radiators or other
sources of heat. Do not place the inverter in direct sunlight. Ideal
operating temperature is between 10°C and 30°C. Allow at least 2 inches
(5cm) of air space on all sides of the inverter. During operation, keep
away from materials that may be affected by high temperatures.
• In order to properly disperse heat generated while the inverter is in
operation, keep it well ventilated. While in use, maintain several inches of
clearance around the top and sides of the inverter.
• DO NOT use the inverter near flammable materials
• DO NOT install inverters in unvented battery compartments
• DO NOT expose the inverter to temperatures exceeding 40°C
• DO NOT connect live AC power to the inverter’s AC outlets. The inverter
will be damaged even if it is switched OFF.
• Any internal adjustment on the inverter is prohibited. Do not disassemble.
WARNING: The manufacturer is not responsible for any potential injury
from misuse
WARNING: High voltages inside; do not open the inverter case while power
is connected.

4
BOX CONTENTS
PRODUCT DIAGRAM
1 x Power Inverter
1 x Pair of Battery Cables
1 x User Manual
1 x Remote Control Kit
Power
Switch
USB Port
Remote Control Port
Indicator Lights
AC Output
BEFORE FIRST USE
Prior to using your product, please read all the safety and operating
instructions thoroughly. Please ensure you follow the steps below before
using the product. We recommend you keep the original packaging for
storing the product when not in use.
Please pay close attention to the section entitled Warnings & Safety
Information. Find a safe and convenient place to keep this instruction
manual for future reference.
Unpack the product but keep all packaging materials until you have made
sure your new product is undamaged and in good working order. Ensure
you have all accessories listed in this manual.

5
INVERTER INFORMATION
Types of Inverters
There are 2 types of inverters available for
use in consumer applications. These are:
Pure Sine Wave Inverters
The name “pure sine wave” inverter comes from the wave form of its
output, as shown in the above diagram. This is identical to or replicates
as closely as possible the normal AC mains. As most electronic products
are designed to be powered by sine wave AC, pure sine wave inverters are
suitable for all applications, especially motorized devices where it is proven
that pure sine wave power will lengthen the product’s lifetime and run
much quieter. Pure sine wave inverters are more expensive than modified
sine wave inverters because they involve a much more complicated design
in order to simulate the smooth sine wave output of standard mains power.
Modified Sine Wave Inverters
Again, modified sine wave are named after their output waveform. The
output of the modfied sine wave inverter cycles through positive, ground
and negative voltage as shown in the diagram above, to give a rough
approximation of a sine wave.
Modified sine wave inverters are a cheaper alternative to pure sine wave
inverters as they don’t require the complicated system needed to smooth
and render the output waveform. The main down side with a modified sine
wave is that it can introduce electrical noise (buzzing) to inductive and A-V
equipment. This is caused by the fast reversal of the output voltage 100
times per second. However, modified sine wave inverters are OK for heat
element devices (kettle, heaters, etc) and devices that have an external or
built-in adaptor (laptop, TV, etc).
How do I choose between Modified Sine Wave or Pure Sine Wave
Inverters?
1. Inductive loads such as microwave ovens run faster, quieter, cooler and
more efficiently on pure sine wave.
2. Pure sine wave reduces audible and electrical noise (buzzing) in fans,
fluorescent lights, audio amplifiers, TVs etc
3. Pure sine wave prevents crashes in computers, glitches and noise in
monitors
4. Pure sine wave reliably powers the following devices that normally won’t
work with modified sine wave inverters:
• Laser printers, photocopiers, magneto-optical hard drives.
• Some fluorescent lights with old-type ballasts.
• Power tools using variable speed controllers AC motors.
• Sewing machines with speed/microprocessor control.
• Battery chargers
Pure Modified

6
USING THE REMOTE CONTROL
• Make sure the inverter’s on-board switch is set to “Off” (No lights
showing)
• Plug the white remote cable into the “Telephone” type socket on the
front panel of the inverter.
• Press and hold the button on the remote unit for about 1 second.
• The green light on the remote unit should come on, and the inverter
should switch on.
• To turn the inverter off, press and hold the remote button until the green
light goes out.
TROUBLESHOOTING
TONE LED INDICATOR FAULT SOLUTION
1 beep Green LED solid on Working normally N/A
2 beep N/A Undervoltage warning Check battery input.
3 beep Red LED solid on Undervoltage protection Check battery input.
4 beep Red LED solid on Overvoltage protection Check battery input.
5 beep Red LED solid on Overheat protection Ensure unit has
appropriate
ventilation. Leave
unit switched off
until it cools down.
Continuous
beep
N/A Inverter overload
protection
Ensure load is within
the rating of the
inverter. Turn unit
off for 10 seconds to
reset.
WARNING: The power switch on the Inverter must be set to “Off” (no lights
showing) before the remote switch can operate.
NOTE: If you switch the inverter on using the remote control, and then
after that also set the inverter’s onboard switch to “ON,” the green light
on the remote unit will stay on. If you press the remote’s on-off button, the
green light will go out, but the inverter will stay on. After that, pressing the
remote button has no further effect.

7
SPECIFICATIONS
AC
Input
Continuous Power 2000W
Surge Power 4000W
Max Constant Power Start 2400W for 10 seconds
Output Wave Form Pure Sine Wave (THD<3%)
Output Frdeuency 50Hz+/-3Hz
Voltage 230VAC
DC
Output
Input Voltage 12VDC
Voltage Range 10V-15V
Low Voltage Alarm 10.5V+/-0.5V
Low Voltage Shut Down 10V+/-0.5V
Over Voltage Shut Down 15V+/-0.5V
Over Thermal Protection Shut Off Output Automatically,
Temperature>75°C
Short Circuit Protection Reverse Polarity (External fuse)
Cooling Fan Automatically Run Temperature ≥45°C
Working Temperature -10°C ~ +50°
Working Humidity 20%-90% RH Non-Condensing
Storage Temperature Range -30°C ~ +70°C
Converting Max Efficiency 90% (FullLoading) / 95%
(1/3Loading)
No Load Consumption <1.2A
Led Indicator Light Inverter, Fault
Product Size 320 x 220 x 92mm
Inner Box Dimensions(mm) 446 x 285 x 162mm
Net Product Weight (kg) 4.65kg
Inner Box Weight (kg) 5.46kg

This warranty is provided by:
Electus Distribution
Address 46 Eastern Creek Drive, Eastern Creek NSW 2766
Ph. 1300 738 555
WARRANTY INFORMATION
Our product is guaranteed to be free from manufacturing defects for a
period of 12 Months.
If your product becomes defective during this period, Electus Distribution
will repair, replace, or refund where a product is faulty; or not fit for
intended purpose.
This warranty will not cover modified product; misuse or abuse of the
product contrary to user instructions or packaging label; change of mind
and normal wear and tear.
Our goods come with guarantees that cannot be excluded under the
Australian Consumer Law. You are entitled to a replacement or refund for
a major failure and for compensation for any other reasonably foreseeable
loss or damage. You are also entitled to have the goods repaired or
replaced if the goods fail to be of acceptable quality and failure does not
amount to a major failure.
To claim warranty, please contact the place of purchase. You will need to
show receipt or other proof of purchase. Additional information may be
required to process your claim.
Any expenses relating to the return of your product to the store will
normally have to be paid by you.
The benefits to the customer given by this warranty are in addition to other
rights and remedies of the Australian Consumer Law in relation to the
goods or services to which this warranty relates.