Thermostats and Controllers


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Setpoint Controller PXR4

Setpoint Controller


The Fuji Electric Model PXR4 Set Point Controller is one of the most technically advanced instruments in the industrial and commercial markets today. It is also one of the least expensive controllers of its kind. Through the use of a specially designed Fuji microprocessor, the Model PXR4 incorporates the latest technology for controlling applications. With simple, finger-tip programming from the front panel, the operator can tailor the operation of the controller quickly and easily. By automatically setting proportional band, integral (reset) time, and derivative (rate) time by means of the autotuning function, control parameter guesswork is eliminated. In addition, this controller employs Fuji's patented fuzzy logic algorithms. The Model PXR4 can learn processes, using the PID parameters as a starting point. This intelligence allows your process to reach its set point in the shortest time possible while virtually eliminating overshoot.


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No accessories found
  • Any type single-loop control application
  • Input 4-20 mA, 1-5 VDC; Output 4-20 mA
  • PID control or fuzzy logic control
  • Manual or autotuning
  • Programmable control action, reverse or direct
  • LED indication of the process variable and setpoint
  • Output status indication
  • Fault indication of input sensor
  • Selectable indication resolution
  • Digital filtering to suppress electrical noise
  • Easily programmed with two-level, menu-driven format
  • Nonvolatile memory, no battery required
  • 1/16 DIN package
  • NEMA 4X faceplate

Supply Voltage:100-240 VAC, 50/60 Hz

Supply VA:10 VA at 120 VAC


 :Current 4-20 mA DC, impedance: 250Ω with external resistor

 :Voltage 1-5 VDC, impedance: 450 kΩ minimum

Input Scaling Range:-1999 to 9999

Input Sampling Cycle:0.5 seconds

Input Filter:0-900.0 seconds in 0.5 second step


 :Current 4-20 mA DC, 600Ω maximum

Control Type:PID control or fuzzy logic control, manual or autotuning

Proportional Band:0% to 999.9% in 0.1% steps

Integral Time:0-3200 seconds in 1-second steps

Derivative Time:0-999.9 seconds in 1-second steps

Action:Direct or reverse, programmable

Indication Accuracy:±0.5% full scale ±1 digit at 73°F

Memory:Nonvolatile, no battery required

Diagnostics:Monitored by watchdog timer

Noise Reduction:


 :Normal mode (50/60 Hz), 50 dB or more

 :Common mode (50/60 Hz), 140 dB or more

Termination:8-pin socket

Enclosure:ABS plastic, black, 1/16 DIN NEMA 4X front panel

Mounting:Flush panel or surface mount

Operating Temperature:14° to 122°F (-10° to 50°C)

Operating Humidity:0 to 90% RH (non-condensing)


 :SR2P-06 1.89″ x 1.89″ x 3.33″ (4.8 × 4.8 × 8.47 cm)

Weight:0.5 lb (0.23 kg)

Approvals:UL recognized, File #E131280, CE certified

Warranty:1 year


Download Additional Data

document   Catalog Page
document   PXR4 Specification Sheet
document   PXR4 User's Manual