Photocells - Polifemo Radio
The radio system embedded in the Polifemo photocell allows easy and rapid positioning of the photocells wherever you want along the course. The timekeeper can then receive the total time via radio and take up to 6 intermediate times, all of them identified.
- EncRadio SF impulse transmission system embedded in the photocell
- Selection of 16 transmission channels
- Radio transmission range of about 2 km.
- Selection of impulse type (start, stop, up to 6 laps, each one individually identified)
- Reflection functioning with a range of over 35 metres;
- Low battery indicator;
- Embedded ‘smart’ recharge circuit;
- Possibility of substituting the rechargeable batteries with two AA batteries (over 15 hours of battery life)
Technical Data
| Weight: | 445 g | |
| Dimensions: | 59 x80 x 104 mm (l x p x h) | |
| Resolution: | 0,125 ms | |
| Delay in relation to event: | 1 ms | |
| Operating temperature: | -25 °C/+70 °C | |
| Power supply: | Internal | Rechargeable batteries : NICd, NiMH 1.2V Non-rechargeable batteries : alcaline 1.5VRechargeable batteries : NICd, NiMH 1.2V Non-rechargeable batteries : alcaline 1.5V |
| On polifunctional 6 pole socket | 5V¸13V with protection circuit | |
| On recharge jack | 5V¸13V with protection circuit (voltage >8V to allow recharge) | |
| Protection circuit | for all models | |
| Battery recharge | Embedded ‘smart’ recharge device | |
| Battery life | 18 hours | |
| Processor: | C-MOS 8 bit microprocessor |
Data Sheet for all Polifemo
| Model | Polifemo | Polifemo Light | Polifemo Radio | Polifemo Radio Light | |
| Connections: | Polifunctional 6 pole socket | ✔ | |||
| Optoinsulated banana jacks | ✔ | ✔ | ✔ | ✔ | |
| Optical range: | 15m | ✔ | ✔ | ||
| 30m | ✔ | ✔ | |||
| 90 m (facing cells) | ✔ | ||||
| Controls: Dip-switch | activated line | ✔ | |||
| single/facing | ✔ | ||||
| TX/RX | ✔ | ||||
| Hold-off time | ✔ | ||||
| continous/one shot | ✔ | ||||
| type of signal transmitted (Start, Lap 1..6, Stop) | ✔ | ✔ | |||
| long/short signal | ✔ | ✔ | |||
| impulse transmission for other devices | ✔ | ||||
| Radio transmission: | Digital FSK transmission; redundancy code with information accuracy check and autocorrection | ✔ | ✔ | ||
| Transmission channelling: | (16 channels selectable) | ✔ | |||
| Precision of impulse transmission: | ± 0.4 ms | ✔ | ✔ | ||
| Time base: | 4 MHz quartz ±10 ppm between -25°C and +50°C | ✔ | ✔ | ||
| Radio transmission range: | About 2 km | ✔ | |||
| About 300 m. | ✔ |
