Photocell PR1a
The photocell PR1a is a masterpiece of precision and power in a small package.
The transmitter of the photocell sends a modulated infrared beam. The receiver checks the infrared beam and makes an impulse for each interruption.
To use the photocell universally it is possible to switch between 3 different functions: Reflection-Photocell, Photocell Transmitter and Photocell Receiver.
- Impulse accuracy up to 1/10,000 seconds
- Different functions with one photocell:
- Refection-Photocell with Reflector
- Separate Transmitter-Unit and Receiver-Unit for long distance use
- Long distance range
- Reflection-Photocell about 25 m
- Through-Beam-Photocell over 150 m (500 feet)
- Variable power supply for the photocell
- Battery operation
- Power supply from ALGE-timing device
- External power supply from 4 to 18 VDC
- Battery indication with LED (green, yellow, red)
- Indication of photocell adjustment with LED (green, yellow, red)
- Synchronisation of two photocells (main and backup) to prevent interference
- Adjustment of delay time (20 ms to 2 seconds (factory adjustment = 20 ms)
Photocell PR1a with extendable cover to
protect the lenses from rain or snow!
