The DA100 has been designed in strict pursuit of improved user economy and environmental durability in field use. The result is a reduced number of cables by means of remote-control measurement, smaller installation area due to its compact design, and reduced expense to users of converters through a wide choice of input modules. Plus, the model features enhanced environmental durability, such as improved insulation capabilities and withstanding voltages across the input channels and a wider range in the operating temperature. With all these features, the DA100 data acquisition terminal lends itself to a broad range of applications with amazing versatility, from high-speed, multi-point measurement to computational and statistical processing to applications with alarm output capabilities.

Every effort has been made in the design of the DA100 to reduce power consumption, thereby minimizing temperature rise. As a result, the unit can be operated over an ambient temperature range of -10°to 60°C. It can also withstand severe conditions encountered in the field.

Channels at the input circuit are fully isolated with high-voltage solid-state relays.*1 The DA100 can withstand a common-mode voltage of up to 250 VAC*2 rms and a withstanding voltage of up to 1500 VAC*2 (for a duration of one minute). These features ensure that the model is even applicable to multi-point measurement in the field.

*1 RTD and pulse inputs share a common line within the same module.
*2 Depends on module types.

Parallel processing of data is used by the dedicated A/D converter inside each input module. 1 Mbps high speed data transfer is accomplished between the main unit and each subunit. Furthermore, the use of a distributed multi-CPU control method for the overall system achieves high speed measurement of data from 300 channels over an interval of 500 ms (the stand-alone model can measure data at the rate of 40 channels/500 ms). The DA100 has a time axis resolution four times that of the previous model (DA2500E), achieving better time synchronization between channels.

The use of high breakdown voltage solid state relays and a planar transformer developed by YOKOGAWA has enabled the volume of the 60-point input measurement section to be reduced to 1/5* that of previous models. This makes for more efficient use of control room or laboratory space and reduces total costs.
This saves space and reduces costs, for example, for panel instrumentation.