USING THE RPS-1in the OM-420

PROBLEM: Batteries are fully discharged.

SOLUTION: Charge the batteries.

SYMPTOM: STATE-OF-CHARGE INDICATOR SHOWS LESS THAN FULL

PROBLEM: Batteries are slightly discharged

SOLUTION: Charge

PROBLEM: Power supplies are ON dropping the battery voltage

SOLUTION: Turn off supplies before checking the SOC or use the measurement as a relative SOC only

PROBLEM: Batteries are cold

SOLUTION: SOC readings are affected by temperature. Use the display as a relative measure only.

PROBLEM: Batteries are worn-out

SOLUTION: Replace batteries

SYMPTOM: BATTERIES DO NOT APPEAR TO CHARGE

PROBLEM: Batteries are bad.

SOLUTION: Replace batteries.

PROBLEM: MAIN power switch is OFF during charging

SOLUTION: Switch must be ON

PROBLEM: Batteries have insufficient charge to power charging start-up circuitry.

SOLUTION: Press and hold the BOOST CHARGE button for approximately 10 seconds, then release it. After a few minutes, press the Battery State of Charge Test button and one or more of the LED lights should illuminate indicating that the batteries are starting to take a charge.

PROBLEM: Charging input voltage is lower than the battery voltage.

SOLUTION: Increase the CHARGER input voltage. The minimum input voltage for the a MAIN POWER SWITCH setting of 12 VDC is 13.5 VDC/VAC and for the 24VDC setting is 25.5 VDC/VAC.

SYMPTOM: POWER SUPPLIES DO NOT TURN ON

PROBLEM: Main Power switch is OFF.

SOLUTION: Turn to 12 VDC or 24 VDC position.

PROBLEM: CONTROL INPUT signal wire polarity is reversed.

SOLUTION: Check polarity of signal wire with a volt-meter and check connections to terminal strip.

Omega Engineering Inc.

8

Stamford, CT

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Omega Vehicle Security OM-420 manual Symptom STATE-OF-CHARGE Indicator Shows Less than Full