The Keyence DH-220 Sensor Head is a high-performance detection device designed for accurate metal plate thickness and presence monitoring. Built for use with the DD-860 amplifier unit, the DH-220 employs a transmitter-receiver detection method, enabling stable and contactless monitoring across a wide range of materials. This model is particularly effective in applications that demand precision, speed, and durability in challenging industrial environments.

One of the standout strengths of the DH-220 is its broad material detection capability. It supports a wide variety of metals including steel, aluminum, copper, brass, and stainless steel. Each material can be detected across different plate thicknesses, ranging from as thin as 0.01 mm for copper to 10 mm for aluminum, offering exceptional versatility in both lightweight and heavy-duty metal processing industries. This makes it ideal for manufacturing processes such as sheet metal inspection, stamping, cutting, and quality assurance, where material variability is common.

The sensor also demonstrates high sensitivity and accuracy in operation. Even with a maximum transmitter-to-receiver separation distance of 30 mm, the DH-220 maintains precise detection. Its ability to detect extremely thin plates ensures that manufacturers can rely on it for applications where microscopic deviations can impact product quality. Combined with a selectable response time as fast as 5 ms, it is well-suited for high-speed production lines where rapid feedback is critical.

From an installation and integration standpoint, the DH-220 offers significant flexibility. Its compact standard head shape allows for straightforward mounting, while the ability to accommodate separation between the transmitter and receiver ensures adaptability to different equipment layouts. The sensor can detect a minimum target size of 50 x 50 mm under specified conditions, providing stable detection even when target positioning varies.

Durability is another defining feature of this model. The DH-220 is engineered to perform reliably under industrial stress, withstanding vibration resistance up to 55 Hz and shock resistance across multiple axes. Additionally, it operates effectively within a temperature range of -10 to +60 °C and tolerates humidity levels up to 85% without condensation. Its robust design ensures long service life in factory environments where temperature fluctuations, vibration, and continuous operation are standard.

In terms of output, the DH-220 offers both NPN control output and relay output, allowing seamless connection to a wide variety of control systems. This dual output flexibility enhances its integration into automated lines and ensures compatibility with diverse industrial setups. With a power input of 115/230 VAC, it is designed to accommodate global electrical standards, further expanding its application range.

In summary, the Keyence DH-220 Sensor Head delivers precision detection, multi-material compatibility, high-speed responsiveness, and industrial durability. Its combination of sensitivity, robustness, and versatility makes it an indispensable solution for manufacturers requiring reliable metal detection and quality control in modern automated environments.