Protection Features - Silverline 204757 Manual De Instrucciones

204757
product specifically states a wide input voltage and dual mains frequency,
for example '100-240V - 50/60Hz', can they be used.
IMPORTANT: If you are using an RCD with the inverter check that the
inverter is operating normally. As with all RCDs use the test button to make
sure it is operating correctly before use. If the RCD is not operating normally
with an inverter this does not indicate a fault with the inverter or RCD and
is likely caused by either the modified sine wave output or lack of neutral/
earth bonding you would get from normal domestic sockets.
IMPORTANT: The inverter may shut down as a vehicle engine is being
started due to the high electrical current required by the vehicle starter
motor. Ideally turn off the inverter before starting the vehicle.
Notes
• The inverter simulates mains AC voltage using a modified sine wave (Fig.
B). A small number of devices may not be compatible with this type of
AC waveform. Most resistive-load devices (kettles, filament bulbs etc)
are compatible. Inductive loads, typically those that have electrically
powered moving parts or have circuit boards with electronic components,
are more likely to be incompatible. These have components that make
use of magnetic fields and often require a high starting current as well as
being more selective about the AC wave form. Generally even domestic
mains sockets don't output pure sine wave AC but their waveform is
closer to pure sine wave than a modified sine wave inverter. Many
devices are designed to work with AC wave forms that are not pure sine
wave, so most devices are compatible with modified sine wave output
• Some inductive load devices may consume slightly more current or
produce more noise with modified sine wave AC compared to pure sine
wave AC
• Some devices have huge starting current requirements which means
even if the average power consumption is well within the inverter's rating
the device will not be compatible. Pumps and compressors typically have
the highest starting current requirements (a refrigerator is a common
device of this type). Generally an inductive load with the same wattage
power as a resistive load is less likely to be compatible due to starting
current requirements although some resistive loads still have higher
starting current requirements like filament bulbs
• If an inductive load device will not function at all with the inverter, or
is not functioning correctly, connecting a resistive load device with the
inductive load may enable it to function normally. A small lamp with a
filament bulb may be suitable as a resistive load
• DO NOT use this inverter for sensitive devices such as medical
equipment or any other critical or calibrated electronic device that may
not be compatible with modified sine wave AC
• When used with audio-visual devices, it is possible additional background
noise will be heard in use and possible video distortion or interference.
This could be due to many reasons, including interference from the
inverter or vehicle electrics as well as the modified sine wave AC
effecting components in the device. It is possible such a device will not
be compatible with a modified sine wave inverter, and a pure sine wave
inverter will be required for the device to work optimally
• Some devices, including laptops, mobile phones, and handheld electronic
devices, have AC power supplies to generate DC that the main unit
requires to operate or charge its battery. It is more efficient for such
devices to be charged using a 12V charging lead (possibly supplied with
the unit) as this eliminates the conversion loss from converting 12V DC
to high voltage AC in the inverter and then high voltage AC back to low
voltage DC in the AC power supply
• Some appliances (televisions, stereos, motors, neon lights etc) may
require a much higher starting power than their rated power. If the
appliance will not start, the maximum output of the inverter has been
exceeded. To reduce the total load on the inverter it may be possible to
start the device by turning off other devices connected to the inverter
and then powering them up again, after you have started the device that
requires a very high starting current. If the inverter switches off due to
high starting current demands, this does not indicate a fault
• When checking AC output from an inverter with a multimeter, unless the
multimeter has a true RMS feature, it will give a low voltage reading from
the output of a modified sine wave inverter. This is normal and not an
indication that the inverter or multimeter is faulty
• Use a plug-in power monitor plugged into a domestic AC mains socket to
find out the true power consumption of an AC device. Ideally use a power
monitor with a peak current facility that will indicate the required starting
current of a device
• If the appliance to be connected does not have its wattage (W) indicated
on it, the wattage can be calculated by multiplying the amperes (A) by
230
• When you have finished powering a mains device with the inverter, turn
the On/Off Switch (4) to off. The inverter always consumes power when
turned on. See 'Specification' for the inverter power consumption without
load. It is possible for the inverter to drain a battery and prevent starting
of a vehicle if left on, even without a load
1. Before connecting any appliance to the inverter, switch the On/Off Switch
(4) to the 'On' position. After a few moments, the Power Indicator Light (1)
will illuminate. The inverter is now ready for use
2. Do not connect loads greater than the rated maximum continuous power
output of the inverter (see 'Specification')
3. Connect your AC device to the 230V Universal Mains Sockets (3)
Calculating Load and Runtime
• An easy way to calculate the approximate runtime of a mains device
when connected to an inverter and battery with a known amperes power
consumption value, is to multiply by 20 and divide the Ah figure of the
battery by this calculated figure to get an approximate figure in hours
• Convert Watts into Amperes by dividing Watts by voltage (230). Convert
Amperes into Watts by simply multiplying by 230

Protection Features

• Input over voltage: the inverter will switch off if the input DC voltage
reaches or exceeds 16V. This indicates a poorly-regulated electrical
system in the vehicle
• Input low voltage: the inverter will switch off if the DC voltage
is approximately 10V. This prevents damage to AC devices due to
insufficient AC voltage. The DC voltage may already be inadequate for
starting the vehicle at this point. The inverter will audibly indicate low
voltage from approximately 10.5V to 10V before shutting down
• Output overload: the inverter will switch off if the sustained or peak
current requirements of the AC device or devices is too high for the
inverter or the peak starting current requirements are within the inverter
specification but are lasting beyond the 1 second limit for peak current
• Output short-circuit: If there is a short circuit in the AC connections the
inverter will shut off. The internal fuses of the inverter may be blown and
will need replacement at an authorised service centre
• Overheat protection: The inverter will shut off if the internal temperature
of the inverter has reached approximately 55°C. This may occur due
to inadequate ventilation, incorrect installation, poor compatibility with
an AC device, or simply due to the inverter being used for a long period
at maximum capacity. The built-in fan of the inverter is temperature-
controlled to reduce current demands of the inverter
IMPORTANT: Always try to prevent these protection features from operating
in the first place. However, it is possible that damage has already occurred
before they operate.
IMPORTANT: When restarting the inverter after shutdown, make sure the
issue that caused the shutdown has been corrected.
Using the USB socket
• The inverter is fitted with a USB socket, which provides a maximum of
500mA current. If you have a device that can be charged via USB or
mains, always use the USB as it makes more efficient use of energy
Accessories
• A range of accessories is available from your Silverline stockist. Spare
parts can be obtained from toolsparesonline.com
www.silverlinetools.com
12V Inverter
7