Digital clocks are widely used these days. The HQS-Y digital clock system is used primarily in schools and other facilities. In addition to measuring time, the clock can also be used to control the school bell.
The network consists of master and an unlimited number of slave clocks. The master clock of the network is called HQS-Y01, while the slave clocks are signified by numbers and letters based on the number of clocks (e.g. HQS-Y02, HQS-Y03, etc.) The numbers indicate the number of slave clocks within the system.
The clocks are connected to the system wirelessly (radio) or via wired (RS485) connections where both connections can be used. The master clock receives the exact time via the GPS receiver and then synchronizes with the other clocks. The clocks can also be controlled by computer, transmitting the information to the master unit, which collects and stores the data in the EEPROM memory until the data is modified. Each clock has an integrated sensor which registers outdoor light conditions and adjusts its display brightness accordingly.
The HQS-Y01 digital clock is part of the master unit and can be used to control all other clocks in the network, also via radio control and wired control. The master clock transmits the synchronization and updates via GPS receiver, RS485 adapter and radio port. Thanks to the control ports it can be used to control a school clock and other devices, as well.
Technical specification:
Display: 6-Digit, 7 segments, featuring high intensity red LED diodes (4000 µC) . Viewing angle: 170°. Visibility: 1-130 m. Clock precision: +/- 0s with GPS receiver, +/-1s monthly without GPS receiver. Modes: displaying exact time, displaying temperature (optional), date (optional) and other information (optional). Size of one digit: SS:MM – height 118mm, width 70mm; ss – height 72mm, width 45mm. Power supply voltage: AC adapter 220 V~/18.5V – 3.6A. Consumption: min. 1,2 VA, max. 12 VA (depending on display intensity). Dimensions: height 246 mm, length 613 mm, width 51 mm, weight: 1,9 kg. Operational temperature: -25°C to 50°C. Accumulators for operation without electricity: 6V and 12V sequentially connected (optional).