YEARLY PROGRAMMABLE TIMER (GNSS Synchronization) Wall-Mount Type QT-7800 Series

QT-7800 Series   QT-78101/78102   

QT-78201/78202   QT-78301/78302

*GNS-300 is available separately

SEIKO QT-7800 Series is a high-precision quartz master clock equipped with a yearly programmable timer function. It is so high-quality as well as high-capacity as to allow up to 1,000 steps of programs to be set and have 8 channels of contact signal outputs to control various devices, offering the customers a wide varieties of functions to meet their requirements. In addition, the programs can be set easily using computer application software, and they can be imported into the Yearly Programmable Timer by using USB memory.

(1) Master clock function (QT-7810X, QT-7820X and QT-7830X)

Up to 30 secondary clocks can be connected to each secondary clock circuit (if the current consumption of each secondary clock is 12 mA).

(2) External synchronization function

By connecting a 30-sec. polarized signal with the external synchronization input, the loss/gain of the clock is corrected automatically. Besides, by inputting a serial time signal (RS-422), the clock is kept in constant sync with the input time.

(3) Time correction with GNSS (when connected with an optional GNSS receiver GNS-300)

By connecting a GNSS receiver (GNS-300), the time is automatically corrected on a regular basis. 

(4) Time server function

It can bring the time of secondary clocks, computers, and other devices on the network into sync with the time of QT-7800 Series.