QC-55102 Seiko Master Clock (Wall-Mount Type)

Number of secondary clock circuits

1 circuit

Crystal oscillator frequency

4.194304 MHz

Time accuracy

Weekly rate of less than ±0.7 seconds (+5℃~+35℃), no accumulated error after time correction

Time display

【Master clock】 Year, month, date hour, minute, and seconds, and Digital display in 24-hour indication (not displayed during power failure) 【Monitor clock】 30-second interval hand movement

Time setting

【Master clock】 Setting of year, month, date, hour, minute and seconds 【Monitor clock】 60X speed quick advance of hands by APC system

Daylight saving time

【Master clock】 Setting of year, month, date, hour, minute and seconds 【Monitor clock】 60X speed quick advance of hands by APC system

Daylight saving time

Setting of year, month, date and hour for start date, and month, date and hour for end date

Secondary clock driver

【Driving signal】 DC 24 V 30-sec. polarized signal, Pulse width of 0.5 sec., No-contact 【Max. number of secondary clocks to drive】 30 units（12 mA/unit, 30 units/circuit） 【Maximum driving capacity】 360 mA（360 mA/circuit） 【Backup power】 DC 24 V, Built-in sealed Ni-Cd rechargeable battery 【Battery protection】 Overdischarge prevention circuit 【Signal voltage detection】 Signal voltage stopper function (stops output when secondary clock driving voltage lowers)

External synchronization

DC 24 V 30-sec. polarized signal, Every hour except 7, 19, 0, and 12 o’clock, Synchronizable loss/gain range …Less than 15 seconds

Synchronization output

RS-422

Input power supply

■QC-55101：AC 110 V ±10 % or DC 24 V ±10 % ■QC-55102：AC 220 V ±10 % or DC 24 V ±10 %

Power consumption

21 W

Power failure backup

【Master clock】 Approx. 5 years (no indication on digital display, counting by internal clock only) 【Secondary clock driver】 30 hours (in case of power failure of more than 30 hours, hands are adjusted automatically after recovery.)

Operational temperature range

-10℃~+50℃

Outer dimensions

W420×H354×D110 (mm)

Weight

Approx. 7.0 kg

Enclosure

【Front panel】ABS and stainless steel, pearl gray with a slight gloss 【Rear panel】Stainless steel, pearl gray with a slight gloss

Accessories

Plastic foot, 4 pcs, Miniature fuse, Instruction manual, Mounting hole drilling template, and Insulated crimp terminal

Options

Rack mounting fittings (in accordance with EIA Standard)