DC Power Chargers
4.1 DC Power Chargers DC CHARGING SYSTEM Battery types Our power chargers are configured for both sealed and flooded lead acid batteries used in automotive applications. The unit can be configured for other battery types and specialised applications. Charging regime Approved condition for use (e mark): On-board road going vehicles DC power charging provides an optimal electrical system. Full boost float temperature compensated Phase 2 - Boost Charging charging is offered including remote The Antares system continues to allow the voltage to rise thereby allowing the battery to accept charge at maximum current until the battery terminal voltage is just below the ‘gassing’ point. At this point the voltage is immediately reduced to float voltage. This corresponds to about 85% restored capacity. vehicles at lower voltages than the chassis sensing of the batteries voltage and temperature. The system now incorporates a built-in priority split charge facility. The range includes 36VDC input in readiness for the new 42V vehicle power Antares (Europe) Limited Knaves Beech Business Centre Davies Way Loudwater High Wycombe Bucks HP109QR UK www.antares.co.uk email: info@antares.co.uk tel: +44 (0)1628 535440 fax: +44 (0)1628 535441 Phase 1 - Bulk Charging When the charger is initially connected to a discharged battery, current will flow up to the maximum current rating of the unit. This phase continues until the voltage reaches the float voltage. charging regime for auxiliary systems on FM 37786 ISO 9002 The DC Power Charger operates two modes creating four distinct phases. These charging characteristics are optimised to rapidly recharge the batteries over a wide temperature range. Phase 3 Taper Charging systems. During this phase the recharging current gradually declines to the float current restoring the battery to 100% capacity. Key features: Phase 4 Float Charging Compact high power Multi-stage charging Temperature compensation 36VDC/42VDC versions Remote battery sensing Remote display Recovers fully discharged batteries High reliability High degree of system protection Rugged aesthetic enclosure This is the reduced voltage phase in which the charger provides enough current to overcome natural discharge and supports any connected loads. Installation The solid integral flanges of the aluminium side extrusions are pre drilled for ease of mounting in any orientation. DC Power Chargers DC CHARGING SYSTEM Safety protected Chassis Voltage 24V Vehicle Loads The system is protected against: Remote Display overload overheating Remote Voltage/temperature sense short circuit ALT S/M battery reversal/removal DC Power Charger over voltage recovery is automatic. Environmental protection The enclosure is constructed from corrosion resistant aluminium. The structural steel top plate is epoxy coated. Labels use longlife subsurface polycarbonate graphics. The printed circuit boards are conformally coated to protect against high humidity and throughplated to protect against vibration damage. Charge sensing The unit automatically detects if there is sufficient charging voltage on the chassis. This wakes it up 12V Auxiliary Loads chassis ground from its “sleep mode” allowing it to charge the battery if required. Whilst in sleep mode, it is conserving power, there are no indicators and the quiescent draw is negligible. Options an area subject to a different temperature regime, such as on the chassis. Remote display All the panel indicators can be reproduced at a remote location Engineering Support Remote sensing Temperature and voltage can be monitored at the battery terminal. This option should be used to overcome voltage drops in extended output cable runs such as when the charger is used off-board or where the batteries are sited in Please call one our applications engineers if you need any assistance. We have had a lot of experience applying these products and can often suggest alternative ways to achieve an optimal solution. As designers and manufacturers of this equipment Model 90250 90255 90257* 90258* Chassis/aux system voltage 24/12VDC 24/12VDC 36/24VDC 36/24VVDC Current 25A 40A 20A 40A Power 300W 480W 480W 480W Weight 1.9kg 2.24kg 2.24kg 2.24kg Dimensions mm L x W x H 100x223x98 150x223x98 150x223x98 150x223x98 Operating temperature/protection -10 to 45°C, 0 to 95% RH with derating above 30ºC, IP20 “Sleep mode” consumption 1mA typical Indicator LED lamps Green – Unit Active / green – “fast” charging / red - in protection Connections 1 m flying leads Cooling Fan cooled, thermally controlled (except 90250 – convection cooling) Options 99945 Remote voltage/temp sense, 99948 Remote on/off (ASC disable) 99946 Remote charger display - input, output, ground, * Special Order Due to our policy of continuous product development, specifications are subject to change without notice PUB122/4
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