Liquistation CSF34

Summary

Product Identification

Product: Liquistation CSF34 Type: Automatic stationary sampler for liquid media; integrated controller with up to four measuring channels and digital Memosens technology.

Applications

• Communal and industrial wastewater treatment plants
• Laboratories and water management offices
• Monitoring of liquid media in industrial processes

Key Features

• All-purpose plastic ASA-PC housing material.
• Two-door housing for reliable sample temperature regulation.
• Cooling system with forced-air cooling and protective finish.
• Swift menu guidance, navigator, and large display.
• Dual bottle trays for easy sample transportation.
• Practice-oriented programs ranging from simple time programs to event programs.
• Functionality can be extended by installing modular electronic components.
• Integrated data logger for recording measured values.
• Service interface for data transmission.

Operational Modes

The CSF34 can operate using either a vacuum pump or a peristaltic pump.

Vacuum Pump Operation (4 steps)

1. Blow clear: Suction line is cleared.
2. Intake: Sample is drawn into the dosing beaker until conductivity probes are reached.
3. Dose: Excess sample liquid flows back to the sampling point.
4. Drain: Sample is drained into the sample bottle.

Peristaltic Pump Operation (3 steps)

1. Rinse: Suction line is rinsed by forcing medium back to the sampling point.
2. Intake: Medium is drawn in; pump is controlled by flow.
3. Drain: Pump forces medium back to the sampling point.

Sampling Control Methods

• Time-proportional sampling (CTCV): Constant sample volume at regular intervals.
• Volume-proportional sampling (VTCV): Constant sample volume at variable intervals based on inflow volume.
• Flow-proportional sampling (CTVV): Variable sample volume at regular intervals (peristaltic pump only).
• Event-controlled sampling: Triggered by an event, can be time, volume, or flow-paced.

Input

• 2 analog inputs (0/4 to 20 mA)
• 2 binary inputs (passive, 12 to 30 V)
• Optional: additional 2 binary inputs
• Optional: 1 to 4 digital inputs for sensors with Memosens protocol

Output

• 2 binary outputs (open collector, max. 30 V, 200 mA)
• Optional: additional 2 binary outputs
• Up to 2, 4, 6, or 8 x 0/4 to 20 mA active current outputs, galvanically isolated.
• Optional HART communication (only via current output 1:1, limited with fieldbus communication).

Communication

• HART
• PROFIBUS DP (Profile 3.02)
• Modbus TCP or RS485
• PROFINET
• EtherNet/IP
• Web server
• 1 service interface (optional front panel connection)

Power Supply

• Supply Voltage: 100 to 120/200 to 240 V AC ±10 %, 50/60 Hz
• Power Consumption:
  • Version with vacuum pump: 290 VA
  • Version with peristaltic pump: 290 VA
  • Version with sampling assembly: 290 VA
  • Version with 24V power supply: 240 W

Mechanical and Hydraulic

• Dimensions: See official PDF for detailed diagrams.
• Weight: Plastic version with refrigeration: 101 kg (223 lbs)
• Materials:
  • Cabinet housing: Plastic ASA+PC V0
  • Sample compartment inner lining: Plastic PP
  • Window: Safety glass, coated
  • Insulation: Plastic EPS "Neopor®"

Environmental Conditions

• Ambient temperature range: -30 to 50 °C (-20 to 120 °F)
• Storage temperature: –20 to 60 °C (–4 to 140 °F)
• Relative humidity: 10 to 95%, non-condensing
• Degree of protection:
  • Front dosing compartment: IP 54
  • Rear dosing compartment: IP 33
  • Front panel with display: IP 65
  • Sample compartment: IP 54
  • Overall device: IP33
• Process medium temperature range: 2 to 50 °C (36 to 122 °F)
• Process pressure range:
  • Unpressurized, open channel
  • Max. 0.8 bar piping
  • Sampling assembly: Max. 6 bar

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Disclaimer: This extraction may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror