Key facts
- Brand
- FCI
- Model
- TL494
- Industry
- Industrial
- Documents
- 2
- Languages
- ZH · EN
- Last added
- 2012-03-29
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FCI Semiconductor TL494
The wireless intelligent curtain infrared detector uses advanced signal analysis to provide high detection accuracy and anti‑false‑alarm performance. When a person moves within the detection area, the sensor triggers an alarm signal to the control host. It is suitable for homes, villas, factories, malls, warehouses, and offices.
The manual describes technical specifications, installation conditions, step‑by‑step mounting instructions, jumper settings for alarm delay and LED indicators, and safety precautions. It also includes a detection range diagram and guidance for periodic walk‑through testing. This manual is written in Chinese.
FCI TL494 specifications
| Working voltage | DC 3 V (2 × AA batteries) |
|---|---|
| Static current | 15 µA |
| Alarm current | 10 mA |
| Battery life | 1 year |
| Detection distance | 9 m |
| Detection angle | 15° |
| Self‑test time | ≈ 608 s |
| Alarm indication | Red LED |
| Undervoltage indication | Yellow LED |
| Operating temperature | -10 °C to +50 °C |
| Maximum humidity | 95 % RH (no condensation) |
| Installation height | 1.7 m – 2.5 m |
| Transmission frequency | 315 MHz or 433 MHz |
| Transmission distance (clear line) | ≥ 100 m |
| Dimensions (L×W×H) | 110 mm × 69.5 mm × 40 mm |
Source: FCI Semiconductor TL494
All FCI TL494 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum detection distance?
The detector can sense motion up to nine meters away.
From: FCI Semiconductor TL494
What is the maximum collector output current for each transistor?
Each output transistor can handle up to 500 mA of collector current.
From: ON Semiconductor TL494 Switchmode Pulse Width Modulation Control Circuits Datasheet
What is the reference voltage provided by the TL494?
The internal reference voltage is specified as 4.90 V to 5.10 V.
From: ON Semiconductor TL494 Switchmode Pulse Width Modulation Control Circuits Datasheet