3.0 CONFIGURATION

Setting Parameters (continued)

Amp Hours Ah

The amp-hour setting should be set to a value equal or lower than the actual amp-hour capacity of the system’s battery bank. Using a number that is lower than the actual amp-hour capacity allows the % Battery State-of- Charge meter to provide a more conservative indication for the use of the batteries to avoid excessively discharging them.

Also note the temperature at which the battery capacity is rated. The amp-hour capacity of the batteries decreases at temperatures lower than the rated value.

The amp-hour rating is usually printed on the battery’s label. If the

system contains batteries in parallel, then the amp-hour rating of the parallel batteries is added together (i.e., two 120 amp-hour rated batteries in parallel equals 240 amp hours). The amp-hour capacity of a bank does not increase for series-wired batteries and is equal to the lowest rated battery in the series string. If the amp-hour capacity is not listed on the battery, consult the battery manufacturer or dealer for assistance.

Setting the Amp Hours

1.Press the SELECT button until the AMP-HOURS LED ( Ah ) is illuminated.

2.Press the SELECT and RESET buttons simulataniously until the LED display flashes.

3.Press the RESET button to change the displayed amp hours to a value slightly lower than the system’s total battery amp-hour capacity.

4.Press the SELECT button to accept the new value. The selection range is between 10 (010.) to 2,550 (2.55) Ah.

NOTE: When the flashing display indicates between 010. to 990. (decimal point after the right most digit), read the display directly. When the flashing display indicates between 1.00 to 2.55 (decimal point two places to the left), multiply the reading by 1000 (i.e., a flashing 160. equals 160 amp hours; a flashing 1.60 in the display equals 1,600 amp hours).

© 2001 Xantrex Technology Inc.

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P/N 973-0012-01-02 Rev.A05/01

 

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Xantrex Technology TM500A manual Setting Parameters Amp Hours Ah, Setting the Amp Hours

TM500A specifications

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