The Keyence AS-440-01 is a high-performance general-use amplifier unit designed for precision measurement applications in industrial automation. When paired with the compatible AH-305 sensor head, it provides a compact yet powerful solution for applications requiring stability, accuracy, and durability under demanding operating conditions. Its combination of fast response, reliable analog output, and robust environmental resistance makes it an essential tool for engineers seeking dependable measurement performance.

This amplifier unit is engineered to provide high-resolution detection, with a measuring range of 0 to 1 mm and an impressive 0.1% of full-scale resolution. Its accuracy is further reinforced by its linearity rating of ±1% F.S., allowing for consistent measurements across its entire operating range. This makes it well-suited for tasks such as displacement monitoring, machine tool positioning, and inspection processes that require dependable measurement integrity.

One of the standout aspects of the AS-440-01 is its fast response capability, with a frequency response of 3.3 kHz (-3 dB). This high-speed performance ensures that the system can track rapid changes and deliver reliable data in dynamic environments, which is particularly critical in automated production lines, precision machining, and testing equipment.

The unit also offers a stable analog output of 0 to 1 V, with an output impedance of 100 Ω, ensuring smooth integration with controllers, monitoring systems, or data acquisition devices. The analog signal format provides flexibility for engineers and operators to connect the system into existing setups without requiring additional hardware.

Durability is another strength of the AS-440-01. The sensor head carries an IP67 enclosure rating, making it highly resistant to dust, oil, and water ingress. This design allows it to perform reliably in environments where contamination and exposure are common. Additionally, the system exhibits strong temperature stability, with fluctuations limited to 0.03% of F.S./°C for the sensor head and 0.05% of F.S./°C for the amplifier unit, ensuring accurate performance despite environmental variations.

The amplifier unit itself is built to endure tough industrial conditions, including vibration resistance from 10 to 55 Hz with double amplitude of 1.5 mm across all axes. With a power requirement of 110/120/220/240 VAC ±10% and a consumption of just 5 VA, the AS-440-01 offers flexibility and energy efficiency in installation.

In terms of usability, the amplifier is lightweight at approximately 320 g, while the sensor head weighs only 45 g, simplifying installation and maintenance. Together, they provide a compact yet powerful solution for precision measurement applications.

In conclusion, the Keyence AS-440-01 Amplifier Unit is a reliable, accurate, and durable solution for engineers seeking stable measurement performance in demanding conditions. Its precision, speed, robust construction, and versatile output make it an ideal choice for a wide range of industrial applications, from inspection and positioning to automated control systems.