Athena controls has offered a family of panel-mounted universal process controllers available in four din sizes: l/4, l/8, l/l6 and l/32. Each model is microprocessor controlled with on-demand auto tuning and complete on/off through full pid functionality. The single channel controllers give accurate, closed-loop control without set point overshoot. The xt series accepts signal inputs from a wide range of probes and sensors, including k, j, n, r, t, s and b thermocouples; rtds and linear inputs, including 4-20 ma to l-5 volts, and other industry standard current and voltage ranges. Standard features on all models includes: dual led displays, user-selectable ramp to set point, dual.Output/ dual alarm capabilities, field-configurable process, deviation, and latching alarms, and bumpless auto/manual transfer. Options include rs-232/rs-485 bidirectional communications and remote set point select. Other available features include process variable transmission, heater break alarm, and dual i/o card. All the controllers feature dedicated sub-menus that make parameter setting and changing easy and foolproof. Scaling, engineering units, and digital filtering times are all operator-selectable from keypad. The power supply accepts 120 to 240 v ac without transformer tap changes or polarity identification.
