Developed by YOKOGAWA, the SSR switches the inputs when performing multi-channel measurement. A semiconductor device takes the place of the contacts and drive part of a mechanical relay, thus overcoming the problem of defective measurement caused by faulty or worn contacts of the mechanical type relay.
YOKOGAWA's solid state relay has high breakdown voltage (1500 VDC) enhancing safety in the field. Also, its low leakage current (1 nA) enables the very low level voltage signals from a thermocouple to be measured with high accuracy.
YOKOGAWA currently uses this SSR in its hybrid recorders and the advanced 5R series of industrial recorders. Over 800,000 channels of this technology have performed successfully in various field and laboratory applications, thus verifying the reliability of the relay device.
A new surface-mounted version of this highly reliable SSR is used in the DARWIN family. This permits a high degree of miniaturization, low power consumption, long device life and quiet operation.

The DARWIN family uses ASICs (Application Specific Integrated Circuit) which were developed with more than 40 years of data acquisition know-how accumulated by YOKOGAWA. As a result, a high degree of integration has been attained. Also, a gate array is used as the peripheral control circuit. This high degree of integration enables the DARWIN family to become smaller and lighter, and power consumption and heat generation reduced, improving the reliability of the overall system.

The entire DARWIN family is based on the safety standards of North America. DARWIN components is also based on the CE mark, which certifies conformity to European safety standards and electromagnetic interference standards.

A planar transformer is a revolutionary integrated transformer intended to replace the conventional wire-wound transformer, the most antiquated of all electronic components. This small, thin transformer consists of a multi-layer precision thin film coil, enhancing insulation, and also reducing heat and noise emission. This transformer achieves compactness and high performance, while enabling the volume of the power supply unit to be reduced to an amazing 1/2 to 1/5 that of previous power supply units.
All of the transformers in the main unit, subunits and input and output modules of the DARWIN are planar transformers. This is an important factor in achieving the large degree of miniaturization and weight reduction of the DARWIN.

Routine installation work is automated, preventing careless mistakes during the production process from assembly through inspection. The result is a high grade, highly reliable product. We also use precision test equipment on the production line to further increase reliability.