Sentry Series Automatic Battery Chargers
Sentry Series Automatic Battery Chargers

FEATURES

  • Floating charging: 5A @ 12 V, 3 or 5A @ 24 VDC
  • Simple, low cost design
  • For vented lead acid or NiCd batteries

 

DESCRIPTION

The Sentry range provides automatic, current limited and thyristor controlled charging of vented lead acid or NiCd batteries. The units may be used in a wide range of industrial charging applications, including standby engines, pumps and generators.

 

The charger uses an open frame construction, designed for surface mounting in an enclosed panel. Each unit consists of a transformer, rectifier and control circuit. The control circuit ensures that the charger maintains a battery voltage at the pre-calibrated float level, whilst supplying any additional loads current up to the specified maximum.

 

The unit is designed to give a constant current output while battery voltage is below a 'knee point'. Above the knee-point, as the battery approaches it's float voltage, the Sentry output current ramps down. This multi-stage charge regime gives an optimum combination of fast charge rate, followed by float charge without overcharging.

 

Electrical connection of the AC supply and DC output is via spring clamp terminals. Transformer, circuit board and terminal blocks are mounted on an open chassis baseplate/heatsink, designed for surface mounting in an enclosed control panel.

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