EC4A - Slave Clock Impulse Driver (mini Masterclock)

A small circuit controlled by a crystal and micro-controller and giving either a 30 second or 60 second pulse to drive a slave clock in the absence of a Master Clock. The EC4A uses a capacitor discharge technique to massively improve battery life. A typical lifespan for the 'c' cell packs is around 18months.

The controller activates a relay at 30 second or 60 second intervals. The clock can then be powered by a battery pack located in the back of the clock or by anexternal wired power supply if desired. It will come mounted or in a neat plastic enclosure. Small enough to fit behind the clock. Comes with a lead for the coil connection and switched battery box for the driver.

Features..

∆ Very easy to operate - just two buttons with LED indicators

∆ 30 or 60 second pulse

∆ Variable Pulse width (62ms,120ms,240ms)

∆ Pulse forward and hold to stop pulsing

∆ 1 hour DST Forward

∆ 1 hour DST Back

∆ Better than 0.4 sec per day accuracy

∆ All parts, Driver board, and Battery packs come with double sided tape.

∆ 3v - 24v working (EC4A)

∆ 3v - 48v working (EC4S)

∆ Available with plastic mounting plate or fully encased.

∆ Driver board battery pack has a switch for accurate starting.

∆ Dimensions 110mm (inc Flange) x 56mm x 40mm (enclosed) 25mm (mounted)

If you don't have your own power provision for the clock mechanism you will also need one of the power systems.