
บอร์ดแสดงผล WITTY·TAB มีตัวจับเวลาภายในและมาพร้อมกับเครื่องรับส่งสัญญาณวิทยุที่สามารถสื่อสารกับโฟโตเซลล์ที่มีไหวพริบ: เมื่อนักกีฬาผ่านไป โฟโตเซลล์จะส่งสัญญาณที่เกี่ยวข้อง (เริ่ม/รอบ/หยุด) ไปยังบอร์ดทางวิทยุ ช่วงการส่งสัญญาณคือ 150 เมตรภายใต้สภาวะมาตรฐาน
PROGRAMS
P0 | Start, Stop | Basic timing with auto reset after 5 seconds |
P1 | Start, Lap1, Stop | Basic timing with 1 intermediate time |
P2 | Start, Lap1, Lap2, Stop | Basic timing with 2 intermediate times |
P3 | Speed | Speed measurement based upon any length between two photocells |
P4 | Lap Speed | Lap speed measurement with one photocell |
P5 | Start, LapN, Stop | Basic timing with n intermediate times and configurable display time |
P6 | Continuous Timing | Continuous timing, configurable “dead time” |
P7 | Starting System | Start and Stop with reaction time at start |
P8 | Event Counter | Counter increasing automatically with each impulse |
P9 | Parallel Event Counter | Two counters (left and right) for two photocells |
P10 | Date and Time | Displays date and time |
P11 | Time | Time display |
P97 | LED Segments Test | Checks that the LEDs work correctly |
P98 | Photocell Radio Signal Test | Checks the correct radio transmission functioning |
P99 | Parameter Configuration | Configuration of the brightness, radio channel and date & time parameters |
TECHNICAL DATA
Weight | 2.9 kg, batteries included |
Dimensions | 13 x 41.5 x 6 cm (H x W x D) |
Operating temperature | 0° C/+45°C |
Measurement resolution | 4 x 10-5 s (1/25000 s) |
LED matrix | Numerical: 6 digits x 7 segments (10 x 5 LEDs) with 4 punctuation marks (full stop or colon) with manual/automatic brightness adjustment. |
Radio transmission | Digital FSK transmission; redundant code with information correctness verification and auto-correction |
Radio frequencies | freq. da 433.1125 MHz a 434.790 |
Radio transmission power | 10 mW |
Radio transmission range | Approx. 150 meters |
Processing unit | 16-bit microcontroller |
Time base | 12.8 MHz quartz, stability ±10ppm between 0°C and +45°C |
Power supply | Two internal Pb batteries |
Battery charging | Intelligent external Pb battery charger device |
Battery life | > 10 hours |
Buttons | • START/STOP button • LAP/RESET button |
Connections | • Type B MICRO USB connector to connect to a PC • Jack connector for external input/output |