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The SONACHRON® Program Timer is Ideal for Schools and Industry Improves Attendance, Organizes Schedules, Control Lunch Breaks Controls HVAC, Lights or other Electrical Equipment.

  • If desired, a dip switch can be set for operating the unit as a control device. As a control device, the relay latches ON or OFF according to your schedule.
  • A keypad allows easy programming and changes to schedule(s) for operating the internal 10 AMP dry contact relay.
  • Program the weekly schedule with up to 1,440 events. Each event includes the day(s) of the week and the time.
  • If you wish to signal lunches and breaks manually, press the START LUNCH or START BREAK key to sound the break-start bell. Warning and end-of-break bells automatically sound when the break is over.
  • Signal duration can be set from 1 to 99 seconds.
  • If desired, a 4-digit security code entry can be required by keypad for preventing unauthorized tapering of schedules.
  • The SONACHRON® can be connected to an OMN:CHRON II® time recorder when it is necessary to synchronize the bells to the OMNI:CHRON II®.
  • If desired, Daylight Savings Time changes can automatically occur on the last Sunday in October and the first Sunday in April at 2:00 AM.
  • In internal battery retains memory and timekeeping during power failures lasting up to 10 days. Battery recharges automatically when power resumes.
  • Quartz time base provides accuracy of ± 2 minutes per year.
  • Knock-outs are provided for easy wiring and installation.
  • Input Voltage: 115vac (220 optional)
  • Input Frequency: 50Hz/60Hz
  • Input Power: 20 watts max.
  • Standby Power: 1.2 amp hours, 6v battery included (rechargeable)
  • Standby Time: 10 days
  • Timing Accuracy: Per line frequency
  • Number of Events: 1440 (any combination of weekdays)
  • Signal Duration: Programmable – 1 to 99 seconds
  • Daylight Savings: Automatic (Disable by dip switch)
  • Time Display: 12 or 24 hr selectable
  • Relays: 10 amp dry contact
  • Signal Circuit: Single
  • Temperature Range: 0°C to 60°C
  • Voltage Range: ±10% of input voltage
  • Shipping Weight: 7 lbs. (3.2kg)
  • Dimensions: 9.5" W x 5.3" H x 3.3" D (24.1cm x 13.5cm x 8.4cm)