Eaton Ex-Lite N Operating Instructions Manual

Also see for Crouse-hinds series: Operating instructions Instruction manual Operating instructions Operating instructions Instruction manual

Contents

Eaton Ex-Lite N Operating Instructions Manual Manual pdf 4 page image

4Important notesfor battery handling GBB3.2 Charging during operationThe charging current is engineered in such away that a discharged battery will have within14 h approx. 90% and within 20 h approx.100% of its capacity.In emergency operation the battery voltage ismonitored via a deep discharge protectionwhich prevents a deep discharge of the cells.The microprocessor controls and recharges anyreduction of capacity due to self-discharge innormal operation.It is recommended to have one or two fullydischarges per year. This increases the usablelife time of the battery.Should this not be possible due to logistic andsafety reasons at least a partial discharge of aminimum of 40 minutes or 2 hours dependingon the setting, is recommended.B3.3 Charging after storageAfter a long storage of the batteries a fulluninterrupted charge for 20 h should be appliedfollowed by a full discharge down to deepdischarge protection (emergency lamp off) andthen reloading for at least 14 h.If the capacity indication does not show 5 greenLEDs fully lit after 14 h, the above processshould be repeated.For a storage period > 6 months it is recom-mended to have 3 charging/discharging cycles.B3. ChargingB3.1 Initial ChargingBattery charging starts when the power isswitched on. On the connection of a newbattery the indication of the charge state maybe delayed by a few minutes. The first greenLED might take a few minutes to start flashing.After a charging period of 14 hours the batterywill have reached approx. 90% of its ratedcapacity. As the capacity of the battery is overspecified, this 90% will be sufficient to providea rated discharge for both a 90 minute and180 minute setting.Initial charging at 0 °C ambient temperaturemight take double the time than at tempera-tures of >10 °C.After first mains connection an uninterruptedcharging time of 20 hours is recommended toavoid early ageing due to power-on power-offsituations. The battery set is only partiallycharged when supplied.Multiple switching (on - off) of the mainscircuit should be avoided before a first initialcharge (recommended 20h, minimum 14h) isachieved. Such interruptions can significant-ly reduce the lifetime of the battery.Recommendation: New batteries will reachthe full utilisable capacity after approx. 3charging / discharging cycles.B1. Safety instructionsTarget group:For skilled electricians and qualifiedpersonnel in accordance with nationallegislation, including the relevant stand-ards and, where applicable, in acc. withIEC/EN 60079-17 on electrical apparatusfor explosive atmospheres.The battery must not be operated in zone0 or zone 20 hazardous areas!B2. General information aboutthe charging technologyThe microcomputer controlled charging systemmeasures the charging and discharging currentand transmits it to a capacity meter. Five greenlight emitting diodes indicate in 20%-steps theactual charge state of the battery.Overcharging is prevented by means of thischarging control dependent on the capacity.Only the energy drawn is recharged. Theso-called memory effect is thus also prevented.For electrochemical reasons charging and thecapacity are influenced at the ambienttemperature.At temperatures below -5 °C and above +35 °Ccharging will take a longer time and fullcharging is not guaranteed.