Three model families of transmitters, the DSCP20, DSCP80, and SCTP20, are designed around an ASIC chip specifically engineered for thermocouple and RTD sensor interface. The ASIC design provides a high degree of versatility, allowing customer configuration of eight operational functions, selection of 12 industry standard thermocouple types and two standard RTD types, and selection of 270 input ranges. All sensor inputs are linearized using a 23-point interpolation table. Two transmitters are loop powered, deriving their power from the input signal.
Models are available in either non-isolated or isolated versions.
The ASIC based transmitters are designed to protect valuable measurement and control signals as well as connected equipment from the dangerous and degrading effects of noise, transient power surges, internal ground loops, and other hazards present in industrial environments. Communication is serial RS-232C, and all models can be configured with or without their power supply connected. The DSCX-895 configuration software has a comprehensive help file and allows query, printout and saving of configuration settings, display of input measurement value, and display of interpolation table points for linearization. It requires a loop supply of 12 to 30VDC and is reverse supply protected. Isolation is 2300Vrms between input and output, and 3700Vrms between either input or output to power supply.