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Xantrex RV Series Inverter/Charger Owner’s Manual
31
volts due to internal losses. Therefore, the time needed to cook food will be increased if battery
voltage is low.
Clocks: The inverter’s crystal-controlled oscillator keeps the frequency accurate to within a few
seconds a day. However, external loads in the system may alter the inverter’s output waveform,
causing clocks to run at different speeds. This may result in periods during which clocks keep
time and then mysteriously do not. Most clocks do not draw enough power to trigger the load-
sensing circuit. In order to operate without other loads present, the load sensing will have to be
defeated. (See the sections on Search Sense Mode on pages 5 and 20.) Clock accuracy is also
affected by the accuracy of the generator.
Searching: If the amount of power a load draws decreases after it turns on, and if this “on” load is
less than the load sensing threshold, it will be turned alternately on and off by the inverter.
Dimmer Switches: Most dimmer switches lose their ability to dim the lights and operate either
fully on or off.
Rechargeable Devices: Sears “First Alert” flashlights fail when charged by the inverter. Skil
rechargeable products are questionable. Makita products work well. When first using a
rechargeable device, monitor its temperature for 10 minutes to ensure that it does not become
abnormally hot. That will be your indicator that it should not be used with the inverter.
Laser Printers: While many laser products are presently operating from Xantrex inverters, and
we have personally run a Texas Instruments Microlaser and HP IIP, we have had reports of an HP
III and a Macintosh Laser Writer failing under inverter power. We, therefore, do not recommend
the use of laser printers.
Electronics: AM radios will pick up noise, especially on the lower half of their band. Inexpensive
tape recorders are likely to pick up a buzz. Large loads should not be started while a computer is
operating off the inverter. If a load is large enough to require “soft starting” it will “crash” the
computer, causing it to reboot.
Low Battery Dropout: The inverter will turn off to protect itself if your battery bank cannot deliver
the necessary amperage to drive a particular load without falling below the low voltage protection
point for three seconds. With the inverter off, the battery voltage will rise and then it will resume
operation.