The EC4A impulse driver will control your Gents, Synchronome and similar Slave Clock
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 an external 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.
∆ 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.
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REPAIR AND OVERHAUL
SYNCHRONOUS WALL CLOCKS &
CONVERTING SYNCHRONOUS CLOCKS TO LOW VOLTAGE
ELECTRIC CLOCK CARE
ELECTRIC CLOCK MANUFACTURERS
STARTING A SYNCHRONOUS ELECTRIC CLOCK
BENEFITS OF A MAINS ELECTRIC CLOCK
SYNCHRONOUS CLOCK ACCURACY
ORIGINAL CLOCK INSTRUCTIONS
EC4A-800 - for battery operation
EC4A - for battery operation
P&P - will be added at checkout
Example: driver and battery holders posted to UK P&P is £6
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Gents Slave clock with 800Ω coil
EC4A - for mains PSU operation
Battery Version - Enclosed £57
Mains Power Supply Units (PSU)
Plug in Regulator Module - External
Mains PSU Version - Enclosed £67
- Mounted £49
- Mounted £59