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ON-OFF Controller

X48A

X48A is an ON-OFF controller. It can be factory-programmed for either of two input groups. Group 1 contains 8 types of thermocouples (B, E, J, K, N, R, S, T), Pt100 RTDs and 0/4-20 mA and 0-50 mV linear inputs. Group 2 contains 11 types of thermocouples (B, C, D, E, G, J, K, N, R, S, T), Pt100 and Cu53 RTDs, 0/4-20 mA and 0-50 mV 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 3 additional LEDs indicate the state of each relay as well as Auto/Manual status. Membrane buttons on the front of X48A allow operators to easily program up to 3 setpoints. With an error of only 0.1% of the full-scale, this is a process controller of superior accuracy. X48A's electromagnetic 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 0/4-20 mA or 0-10 V DC 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. By including input terminals in the excitation loop, X48A provides power for two-wire 4-20 transmitters.

  • Universal Input
  • Up to 3 setpoints
  • 24 V DC transmitter supply
  • Isolated retransmission output
  • RS485 / MODBUS RTU
  • 85-265 V AC SMPS
  • ON-OFF control

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