Hoppecke Electrolyte Circulation System, Installation And Operating Instructions Manual

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Electrolyte Circulation System
7145240031 V1.1 (01.2013)
Operation
The HOPPECKE Electrolyte Circulation System recognizes via the current sensor whether the battery is charged
or discharged. Only during battery charging operation the pump control unit will switch the pump on for a certain
interval. During pump operation ambient air is filtered and passed to the air outlet nozzle. The air stream is then
directed via air tubes to the bottom of every single battery cell. From there emerging air bubbles rise through the
electrolyte, ensuring a homogeneous electrolyte density distribution in each battery cell. The air bubbles leave
the battery cell by passing the labyrinth plugs.
Note:
The pump is operated automatically and does not require any manual actions.
Note: The fuses of the pump- and control unit need to be removed before removing the cover of the pump
housing or starting any battery service activities (e.g. topping up demineralized water etc.).
The pump- and control unit is equipped with two LED for indication of normal operation (green) or error states
(red). The LED can be seen through the round inspection window covered with clear plastic (refer to Figure 28).
LED indications:
• Green LED flashes one time means battery voltage is < 25.2V.
• Green LED flashes two times means battery voltage is < 36V.
• Green LED flashes three times means battery voltage is < 50.4V.
• Green LED flashes four times means battery voltage is > 50.4V.
After the pump- and control unit is supplied with the battery voltage the system runs a 60s self test. After that
the pump is ready for regular operation. Once the current sensor detects a charging current of minimum 5A
to 10A a ten minutes countdown is triggered. After that the pump works for 12min and will be switched off
for approx. 48min thereafter. This interval is repeated as long the current sensor detects a charging current.
Figure 28: Inspection window