Measurement Computing DataShuttle - Manual (Page 14)

1-6 Introduction & Installation of the Data Shuttle 11-13-01 DataShuttle and DynaRes
DataShuttle-TC
The DS-16-8-TC is the best model for thermocouple measurement. The DS-TC has a large aluminum
isothermal plate with screw terminals for 8 analog inputs. This isothermal plate improves accuracy by
attenuating temperature differences at the cold junction connector. Without this plate, the connectors can
vary in temperature by 5°C or more, causing a similar error in the reading reported by the DataShuttle .
The plate, however, does not prevent measurement of other signals, such as voltage or current. In addition,
the DataShuttle-TC features 8 digital I/O lines, with room for up to 8 optically isolated modules.
Illustration of the DataShuttle-TC
DataShuttle-5B
The DS-16-8-5B-AO offers the most compact solutions available for electrically isolating analog inputs,
analog outputs, and digital I/Os—all in one package. Up to 1500V isolation is available when installed with
the optional 5B modules for analog channels and/or opto22 modules for digital channels. The DS-5B’s
encasement is custom-designed to support the installation of these 5B modules.
The DS-5B features terminals for 8 differential analog inputs and 8 digital I/O lines; two analog outputs are
available on the –AO models. For maximum accuracy, each channel has a temperature sensor for
thermocouple cold junction compensation. Excitation terminals for driving strain gauges are also included
on each channel. In addition, each channel can accept current sense resistors for 4-20mA measurements.