Iota IQ4 Equalizer Installation & Manual

BULK STAGE - During this state, the charger will operate either at constant current output for a set

120 minutes. After 120 minutes, the BULK STAGE will switch to the FLOAT STAGE.

FLOAT STAGE - This charge state holds the batteries at Constant Voltage for a period not less

than 109 days to prevent over-charging of the battery. The IQ-Equalizer will not re-enter the BULK

STAGE unless the pre-set FLOAT duration is elapsed. To end the FLOAT stage manually and re-en-

ter the BULK stage, remove the IQ-EQUALIZER and re-insert into the Dual Voltage Jack of the DLS.

FAULT STATE - If the IQ enters a FAULT state, its circuitry is automatically disabled. In this state,

the functionality of the IQ is completely disabled, the LED will ﬂash irregularly, and the charger re-

verts to a stand-alone FLOAT STATE voltage. The unit will not exit this stand-alone FLOAT STATE,

therefore the unit must be reset by following the steps below.

1. Unplug the charger from its AC source.

2. Disconnect the [+] positive cable from the battery.

3. Wait 30 seconds before reconnecting the input and output. To avoid arcing, it is recom-

mended that the charger be connected to the AC input FIRST before connecting the output

of the charger to the battery*.

*Note that the connection sequence of the input and output covered above is recommended every

time an operator connects the charger to the batteries. However, as long as the charger remains

connected to the battery, periodic unplugging of the AC input does not require this sequence.

The LED indicator will remain lit or ﬂashing when the charger is unplugged or disconnected from

the AC supply (de-energized). During this time, the IQ continues to monitor the battery voltage. If

the battery voltage drops below a pre-determined voltage (Refer to Figure D for predetermined val-

ues), the IQ will automatically initiate the smart-charging cycle once the AC input is re-connected.

IRREGULAR FLASHING LED - If the LED is ﬂashing irregularly or intermittently, then the IQ has

entered a FAULT state due to a voltage irregularity. When this occurs, the IQ must be re-set in order

to resume normal operation. Refer to the FAULT STATE instructions below for re-setting procedures.

OPERATION AND LED INDICATOR REFERENCE (cont.)

CHARGING STAGE DESCRIPTIONS

Figure D: Predetermined Stage Trigger Values

68412-112 REV 1800

PREDETERMINED VARIABLES FOR OPERATION

Battery

Voltage

12V

24V

BULK

15.41V

30.82V

FLOAT

13.6V

27.2V

DURATION

120 minutes

109 days