Time

TR 648 S DCF 16-Channel Yearly Time Switch

Quartz-controlled or DCF 77 radio-controlled with time/data transmission to the bus.

This appliance is the ideal KNX time switch for objects in which complex time functions are required. Due to the integrated astronomical program no light sensor is necessary. Potential damage on a sensor can therefore be omitted. Up to 4 channels can be used with astronomical program. The astronomical program takes geographic differences (sunrise and sunset) into consideration. Depending on the location the daily sunrise and sunset is calculated. The programming of the astronomical program is only possible by the Obelisk 2.1 sofware.

PC based programming with the programming set for Obelisk 2.1 or by local keypad entry. Bi-directional data transfer between PC and devices is supported.

Possible applications:

  • Energy saving switch off at night option
  • Time depending sending of the heating-cooling climatization mode for individual room control systems (e.g. Theben CHEOPS control, RAM 713 S)
  • Simple reprogramming with easy-to-use Windows software “OBELISK 2.1”
  • Transmission of radio signal DCF 77 with time and date to the entire KNX system
  • Time and date synchronization of other bus users (e.g. KNX secondary clock, control systems etc.)
  • Time-dependent switching of lighting, heating, roller blinds, alarm systems, electrical door openers, water flushing device in toilet facilities, irrigation systems, movement of water in swimming pools etc.
  • Time controlled dimming of path lighting
    (e.g. hotels, hospitals, staircases)
    Scene control of lighting with simultaneous switching and dimming (e.g. cinemas, theatre, other functional buildings)
  • Time-dependent definition of different temperature stages for single-room control systems (e.g. CHEOPS control, RAM 713 S)
  • Time-dependent forced control (ON and/or OFF has precedence) of consumers by priority messages
  • Random switching for absence control

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Specification

Operating voltage Bus voltage; additional mains voltage 230 V AC for integrated antenna power supply unit by connection of DCF77 antenna
Channels 16
Number of astronomical channels 4 on C1, C2, C3, C4
Memory locations 500 saved by EEPROM
Automatic program Day, week, year and puls program
Possible manual operations Preliminary manual override, permanent manual override or random switching
Inputs Supply voltage for the DCF part, DCF77 antenna,1 x bus
Programming Via key pad or by PC programming software Obelisk 2.1 and memory card Obelisk (64 K)
Minimum switching interval 1 min, via puls program 1 sec
Block formation Free block formation of the week days and the switching channels
Summer/winter time adjustment Automatic or by the DCF77 radio signal
Power consumption < 10 mA
Accuracy ≤ ±1 s/day or DCF77 synchronous
Power reserve 1.5 years (replaceable lithium battery)
Captive hinged cover, tamper proof
Housing 45 × 105 × 60 mm (6 modules)

NOTE: Timeguard has a policy of continuous product development and reserve the right to alter specifications at any time. Therefore, unavoidable differences between product and website specifications may occur, for which liability cannot be accepted by Timeguard.