CD4 4" DIGITAL SECONDARY CLOCK - Seasons Clock Systems
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The seasons CD-4 digital clocks are designed as low voltage energy efficient clocks for use with any master clock system using a 3-wire synchronous 59th minute correction scheme. When properly connected to a 24 VAC source and to the master clock, the CD-4 digital clock will receive automatic correction each hour for hourly correction and twice daily for 12 hour correction and for Daylight Savings Time adjustments. Additional correction schemes are available for Faraday 58th minute and 12:00 o'clock correction formats. The low power consumption of the CD-4 provides several cost saving advantages resulting in lower acquisition costs to your customer. During power outages, back up time keeping is accomplished internally without batteries. No need to buy or install batteries. Most systems may be installed using low voltage plenum cable. NO CONDUIT REQUIRED! The CD-4 mounts to a standard one-gang electrical box. There is no need for special back boxes or special mounting hardware.
These clocks are provided in a modern looking black haircell ABS plastic case with matching back cover and red Plexiglas lens. The CD-4 only weighs 1.6 pounds which means very low shipping costs. Time display is by rectangular LED's. Battery back up for the entire system (keeping displays lighted) is now an option for this energy efficient system.
These clocks are provided in a modern looking black haircell ABS plastic case with matching back cover and red Plexiglas lens. The CD-4 only weighs 1.6 pounds which means very low shipping costs. Time display is by rectangular LED's. Battery back up for the entire system (keeping displays lighted) is now an option for this energy efficient system.
Each clock uses a current limiting power supply with additional protection provided by an input power fuse.
Features:
Display Format - 12 hour
Correction format - three wire synchronous
Connection - wire nuts
Back up - (120) minutes (no batteries required)
Low voltage operation (no conduit required)
Energy efficient
Low acquisition cost
Easy mounting - to a 4" electrical box. (no special hardware)
No preventive maintenance
Ease of installation
Electrical & Mechanical Specs:
Operating Voltage................................................................24 Vac 50/60 Hz
range........................................................................10 - 40 VAC
Operating current (typical)....................................................70 ma @ 24 VAC
Correction Format...........................8 seconds duration corrects to 59th. minute
14 seconds duration corrects to 5:59
Back up time keeping (no display).................................................120 minutes
Correction Voltage...................................................................24 VAC, 3 ma
Display........................................................................red LED (rectangular)
range........................................................................10 - 40 VAC
Operating current (typical)....................................................70 ma @ 24 VAC
Correction Format...........................8 seconds duration corrects to 59th. minute
14 seconds duration corrects to 5:59
Back up time keeping (no display).................................................120 minutes
Correction Voltage...................................................................24 VAC, 3 ma
Display........................................................................red LED (rectangular)
Case......................................................................Black haircell ABS plastic
Case dimensions.............................................................13"W x 6.75"H x 2"D
Mounting........................................Keyhole in back of case for #6 or #8 screw
Shipping weight..................................................................................2 Lbs
Mounting........................................Keyhole in back of case for #6 or #8 screw
Shipping weight..................................................................................2 Lbs