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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.

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.

slavemechanism
One of the types of
50Hz to 60Hz

Contact me... products@electric-clocks.co.uk

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above....
Mounted version  49
Fully enclosed version  57
To drive your slave clock
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pack
6 C  cell holder
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and4pack
4 + 4  C
This 8 cell pack (12v)
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and2pack
4 + 2 C
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6  AA  cell

EC4A-800 - for battery operation

EC4A - for battery operation

EC4A800

Battery holders

The EC4A-800 uses 12v input
Mounted  version 64
Fully enclosed version  71
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regulator

P&P - will be added at checkout
Example: driver and battery holders posted to UK P&P is 6

Plug in  Regulator Module
EC4PSUw
White 2m Extension lead
plug
socket
In-line  9v Power Supply
inlinePSU
An inline PSU is useful
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Solution Graphics

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Gents Slave clock with 800Ω coil

extnlead3m
Black 3m Extension lead
driver not inc
Manuals
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PO36NB
PO36rearNB
below....

EC4S

EC4A - for mains PSU operation

EC4Aintregenclosed
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Fully enclosed version  67
Mounted version  59
Input voltage to this EC4A
PSU not inc
Plug in  9v Power
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regulator1
EC4PSUw1
EC4Amainsversion
EC4S
AAcellholder
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Ec4Amountedcopy
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The batteries  can be
The batteries can be easily
The EC4S is designed to

Battery Version - Enclosed 57

Input voltage to this EC4A
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If you wish to run

Mains Power Supply Units (PSU)

Plug in Regulator Module - External

Extension Leads

Mains PSU Version - Enclosed 67

- Mounted 49

- Mounted 59

GECclockround
SMITHS CLOCKS FERRANTI CLOCKS PRODUCTS item14