Benefits Of Using Search Sense; Setting Up Search Mode - Xantrex7 UX - REV A Owner's Manual

Inverter/charger

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4.0 Operation

Control Panel (continued)

Search Sense Operation (continued)

Benefits of Using Search Sense

P/N 975-0026-01-01 Rev A 06/2002

For example: when the search sensitivity threshold is set at 40 watts and no loads

are present that are 40 watts or greater, the inverter will "ignore" any loads less

than 40 watts and remain in idle mode. When a load greater than 40 watts

appears, the inverter comes out of idle mode and applies power to the load.

The Search Sense Mode may be disabled by turning the Search Control knob

counterclockwise all the way to "Defeat." The inverter remains at full output

voltage at all times.

Search Sense allows you to selectively operate only loads that draw more than a

specified amount of power, which means power savings. The inverter needs

5 watts to power itself, even when there are no loads to power.

For example: if a water pump is driven by an inverter for only one hour each day,

the other twenty-three hours of the day the inverter is consuming five watts per

hour while idle. This power comes from the batteries.

By setting the search sensitivity so that the inverter idles until the water pump tries

to run, power savings are realized.

Instead of idling at 5 watts, the inverter consumes only ½ watt while in search

mode. This is a savings of 4½ watts every hour or 108 watt hours per day. This

converts directly to 8.6 amp hours at 12.6 Vdc (12 V nominal).

In systems with small batteries or limited charging capability, this can lead to

substantial savings.

The search sense feature significantly reduces battery drain when the inverter

spends a fair amount of time "sleeping" each day. Therefore, if search sense is to

be utilized it must be adjusted properly. The initial adjustment should be made

so that the inverter comes on only when needed.

Determine the smallest load that will trigger the inverter out of search mode.

Turn the sensitivity control all the way to the lowest setting.

Turn on the desired load.

Turn the sensitivity up until the load just turns on (if loads change

significantly, retuning of the search sensitivity will be necessary).

Some TVs have a menu or control to disable instant-on circuits. If clocks are a

problem load, use battery powered units.

A solution might be to place all problem loads on one circuit with one master

disconnect.

See Section 5, Troubleshooting, page 58, for more information about potential

problem loads when using Search Mode.

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Ux series