The Takex F70A Series fiber optic sensor manual describes digital display, auto teaching, sensitivity settings, anti‑mutual interference, timer functions…
The F70A Series fiber optic sensors feature a digital LCD with backlight, multiple light sources (red, green, blue, white LEDs) and NPN/PNP open‑collector outputs. Advanced functions include full auto teaching, manual sensitivity adjustment, anti‑mutual interference for up to eight adjacent units, and configurable on‑delay, off‑delay and on‑off‑delay timers.
Technical specifications cover a 12‑24 V DC power supply, up to 100 mA sink/source current, selectable delay times from 10 ms to 120 ms, light‑emission frequency channels up to 700 µs, IP40 protection, and operating temperature ranges from –25 °C to 55 °C depending on the number of adjacent units.
| Sink current (NPN) | 50 mA (30 VDC max.) |
|---|---|
| Source current (PNP) | 50 mA (30 VDC max.) |
| Off‑delay timer | 40 ms (fixed) |
| Selectable delay time range | 10‑120 ms |
| Light emission frequency channel 1 | 600 µs max. |
| Light emission frequency channel 2 | 700 µs max. |
| Operating temperature (1‑3 units) | −25 °C to 55 °C |
Press the button twice for auto teaching, and hold it down for 3 seconds for full auto teaching.
The off‑delay timer is fixed at 40 ms; other delay times can be selected between 10 ms and 120 ms.
It uses optical transmission to prevent false operation when up to eight sensors are installed adjacently, with a response time of 500 ms for eight units.