Rs. 22,680

PSC-154: TDS/EC Controller with 4-20mA Output

HM Digital "PSC-154" controller maintains TDS/EC levels for high-output commercial systems. It has an extended range, digital calibration, on-screen temperature, tri-color display, and 4-20mA output.

It has a built-in sensor for Automatic Temperature Compensation (ATC) ensures readings always be accurate at various temperatures. You can clearly check the reading measurements as it includes a bright 5/8″ L.E.D. display.


  • Large, bright L.E.D. display
  • 4-20mA output signal can connect to a PLC to record values.
  • An alarm will sound if the TDS /EC level rises above the user-set level.
  • A switch will control a device based on the set point.
  • On-screen temperature display (C/F)
  • Includes one sensor probe (part #SP-1-PSC)


  • EC Range: 0-9999 µS
  • TDS Range: 0 – 5000 ppm
  • Temperature Range: 1-75°C; 33-167 °F
  • Accuracy: ±2% (of the reading)
  • Conversion Factor: NaCl (avg. 0.5)
  • Resolution: 0.1 µS/ppm (0-999); 1 µS/ppm (1000-9999)
  • ATC: Yes (1 – 65°C)
  • Calibration: Digital by push button
  • Set-Point: Single point, controlled by on-screen up/down buttons (to any point within the range)
  • Relay Control: The unit will open or close a circuit via dry contacts when the ppm/µS level reaches or exceeds the control setting (simple switch). It can be used to control a pump, solenoid valve, or other device.
  • Relay Voltage: 5V
  • Output Signal: 4-20mA
  • Output Accuracy (mA): ±1%
  • Alarm: Optional steady beep (set by user)
  • Display: Bright 5/8″ L.E.D. display
  • Probe: 1/2″ bushing (NPT), 3 meters (9.8 ft) shielded cable
  • Power Source: AC 110V / AC 220V
  • Dimensions: 7.2 x 7.2 x 11.1 cm (2.8 x 2.8 x 4.4 in.)
  • Monitor Weight: 241 g (8.5 oz)
  • Total (Shipping) Weight: 610 g (1 lb 5.5 oz)
  • Warranty : One Year Warranty

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