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RCT404 is a preset counter that counts events, batches, measures frequency, motor-speed, cable-length, acts as a zero-speed switch to detect stoppage of a rotating shaft and more. It features a 4-digit pushwheel switch for frequent setpoint changes. The counter receives input from proximity switches, photoelectric switches, voltage pulses, limit switches, microswitches and electromagnetic pickups amongst others. It can count up, count down, bidirectionally as well as in quadrature. The counter measures frequency up to 5000 Hz. RCT404 features a single LED display, which indicates the measured process value. 2 additional LEDs indicate the status of each of the 2 relays. Operators view and change up to 2 setpoints on the display via the pushwheel on the front of the unit. The counter counts a range of 0 to 999999 with absolute accuracy and measures 0.06 - 9999 RPM within 0.05% of the reading. RCT404 features 2 user-programmable electromagnetic relays for process control as well as 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. RCT404 provides mutual signal isolation of 1 kV AC RMS/1 minute for its own power supply, the input and output.

  • Absolute Accuracy
  • Up to 2 user programmable setpoints/relays
  • Programmable scale factor and relay modes
  • Totalizer, RPM, Meters/Minute, Mains Frequency and more
  • Measures up to 5 KHz
  • 4 Counting Modes




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