This is an A/D converter-integrated switching box offering high-speed, high-accuracy measurement and developed to allow expansion of measurement points combined with a data logger. It can measure 50 points in a high-speed 0.4 seconds. Several switching boxes in system and with parallel use of the integrated A/D converters allows strain measurement of 1,000 points in the same 0.4 seconds. High-speed digital communication by RS-422 insulated from the measuring unit or optical fiber makes it extremely resistant to noise. IHW-50G-01 (factory-installed option) allows measurement in high-speed mode (HSP) when connected to only a single TDS-630 high-speed, high-functionality data logger.

The IHW-50H is an exclusive switcing box for the high speed and high performance data logger TDS-630. In order to realize for high speed transfer of large capacity data between the data logger and switching box, the IHW-50H is compatible with the newly adopted high speed communication method TML-LINK. It is cascaded up to the maximum 20 units with the TDS-630 data logger and enables the maximum 1000 channel strain measurement in 0.1 seconds. The IHW-50H has 50 channels and can measure strain gauges, thermocouples, Pt RTD and DC voltage.