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UNICONT PSW Ultrasonic Pump Control System

Brand: Nivelco Process Control Co.

The low-cost UNICONT PSW pump control unit is designed for fully automatic level control of small domestic or communal sewage shafts, sumps or wet-wells. 

An IP68 protected ultrasonic level transmitter performs continuous level measurement and delivers 4-20 mA level data to the UNICONT PSW unit featuring a user programmable controller. 

This controller featuring relay output incorporated in the UNICONT PSW directly controls the single phase pump acting in the sump, well, etc.

The current controlled switch operates in differential level switch mode as default, the low and high levels are programmable. 

By the help of an optional programmable timer automatic pump cycling can be performed to prevent jamming of the pump in case of long idle periods. 

This function is useful in case of infrequent usage or low water consumption. The optional NIVOFLOAT NLP type float level switches may be used for additional dry-run or overfill protection if safety is a priority. 

The system can be turned on or off by a single-pole Miniature Circuit Breaker or a Motor Protection Switch.
Features
  • Cost-saving
  • Fully automatic pump control
  • Programmable pump cycling
  • IP68 / IP65 protection
  • Optional dry-run or overfill protection

Specifications

Approvals & Certifications

  • CE
  • RoHS

BSP Connection

  • 1” BSP Male

Cable Material

  • Level Transmitter (UTP-241- 4-X14): Shielded PVC Insulation 9.84 feet (3 metres)

Class

  • Control Unit Electrical Protection: Class I

Electrical Connectors

  • Control Unit (Terminal): 2.5 mm² Wire Cross Section
  • Control Unit: Plastic Cable Gland

Electrical Contacts

  • Normally Open

Enclosure, Body Material

  • Level Transmitter (UTP-241- 4-X14): Polypropylene

Environmental Protection

  • IP65
  • IP68

Operation

  • Fail-safe

Output

  • 1-1-Piece of NO Relay: 8 A at 250 Vac

Power Supply

  • 230 Vac ± 10 %
  • Level Transmitter (UTP-241- 4-X14): 24 Vdc

Principle of Operation

  • Level Transmitter: Ultrasonic

Sensor, Probe Length

  • Level Transmitter Range (UTP-241- 4-X14): 0.98 to 9.84 feet (0.3 to 3 metres)

Sensor, Probe Style

  • Float

  • Domestic Sewage Shafts, Wetwells
  • Drainage Sumps, Pools
  • Sumps
  • Tanks, Flood Storage

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