User manual AKG CU 4000

[. . . ] Be sure to disconnect the charger from power before cleaning the charger!Never use caustic or scouring cleaners or cleaning agents containing alcohol or solvents since these may damage the enamel and plastic parts. AKG cannot accept any liability for damages resulting from improper handling or misuse. The charger will draw a low current even when the charging mode is off. [. . . ] The DC 12 V jack on the rear panel accepts the DC cable on the included power supply or a connecting cable to the optional PSU 4000 central power supply. Check that the AC mains voltage stated on the included power supply is identical to the AC mains voltage available where you will use your system. Using the power supply with a different AC voltage may damage the unit. You can power the charger in one of two ways: · Use the included power supply. The CU 4000 charger has been designed specifically for charging the BP 4000 Battery Pack and will not charge any other type of rechargeable batteries. (This is only needed if the battery voltage is too low to power the circuitry in the BP 4000. (Table 1) CHARGE >red/orange< green RECOVER red green Status Recovery cycle: the BP 4000 is being discharged. Although the BP 4000 is fully charged, it has aged to the point that its capacity cannot be accurately calculated anymore. Due to the specific shapes of the charging slot and the BP 4000, you can only insert the BP 4000 in the correct orientation. If the batteries inside the transmitter/receiver are dry or standard rechargeable types, do not try to charge them. The transmitter/receiver will remain in SILENT mode and power down automatically as you remove the transmitter/receiiver from the charger. The charging cycle will start automatically as soon as you insert a transmitter or receiver with a BP 4000 inside or a BP 4000 into the charger. 5 Initial Charging Cycle for New or Deep-discharged Battery Packs Table 3: Charging a new or deep-discharged BP 4000 (residual voltage too low) The BP 4000 is Hold the RECOVER being charged and key for at least the RECOVER LED 3 seconds. note: · If you do not press the RECOVER key, the BP 4000 will be charged normally upon initialization. Partially discharging the BP 4000 many times may reduce its capacity (memory effect) or affect the accuracy of the remaining-capacity display. (The remaining battery capacity will only be indicated by the bar graph. ) Once you insert the device into the charger, the RECOVER LED will start flashing orange. These messages request you to start a recovery cycle as soon as possible. The charger will not perform a recovery cycle before you have pressed the RECOVER key for at least 3 seconds. Acc" message in the device display is only a request to perform a recovery cycle rather than an error message!Acc" message comes up again when you power the device up after a successful recovery cycle (the RECOVER LED will not flash orange on inserting the device), there may be a communication problem between the device and the BP 4000. The BP 4000 is being charged and the RECOVER LED indicates the RECOVER key is being held down. [. . . ] If you develop a habit of partially charging or discharging a device, the capacity and thus the useful life of the BP 4000 will decrease somewhat (memory effect). To ensure both a long useful life of the BP 4000 and the highest possible accuracy of the remaining-capacity display, be sure · To completely discharge the BP 4000 every time, i. , not to charge the BP 4000 before the battery warning appears in the transmitter and receiver displays (see also the transmitter and receiver manuals); · , not to remove it from the charger before the charging cycle is completed; · To run a recovery cycle as soon as possible every time the RECOVER LED starts flashing orange; · If you insert a device with dry or standard rechargeable batteries into the charger, the charging cycle will be stopped immediately after the battery test. ) Although there is virtually no risk of damaging the device or charger, it is good practice not to insert devices using dry or standard rechargeable batteries into the charger. [. . . ]