X72 is a full-featured PID controller. It receives input from 8 types of thermocouples (B, E, J, K, N, R, S, T), Pt100, Cu53 as well as 3-wire RTD sensors, 0 - 50 mV and 4-20 mA or 0 - 20 mA linear inputs. A large LED dual-display on the front of the PID controller shows the difference in values of the setpoint and process value while 6 additional LEDs indicate the state of each of the 4 relays, Auto/Manual and communication status. Operators program up to 5 setpoints via membrane buttons on the front of X72 - 4 for the relays as well as one for a 4 - 20 mA signal should they choose to use the linear output for control. With an error of only 0.1% of the full-scale, this is a process controller of superior accuracy. X72's relays trigger heating, cooling or any of 6 types of alarms - full-scale high/low, deviation high/low, inband and outband. It also retransmits an isolated output signal to other devices such as a Programmable Logic Controller (PLC) or Solid-State Relay (SSR). Signal isolation protects your devices and machines downstream of our instruments from damaging fluctuations in the input signal. X72 is an auto-tuning controller; from a cold start or a setpoint.
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