OnLine Power Signal Saver IPC - Manual (Page 98)

6002-1842 Rev A ECO# 8881
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2.4.4 Contrast Adjustment for the LCD Display
1. While pushing the ESC button on the front panel
2. Press the ENTER button and adjust the contrast using the up and down arrow key.
3. Press ENTER when adjustment is complete.
2.4.5 Battery Maintenance
The batteries are Valve-Regulated Lead Acid/Absorbed Glass Matt (VRLA/AGM) and are maintenance-free, but
their service life can be affected by many factors such as: operating temperature, charging
temperature, number of discharges during the battery’s life, extent of discharge, and time left in
discharged state. This system complies with the battery manufacturer’s specifications for optimum
performance and the longest possible battery life.