OUSTF10

Summary

Product identification

Product: OUSTF10 Description: Optical sensor with the OUA260 flow assembly for the measurement of turbidity and undissolved solids. Measuring principle: Scattered light method (11° measurement angle).

Application

The scattered light turbidity sensor is used for measuring undissolved solids, emulsions, and immiscible media in process liquids. Specific applications include:

• Outgoing goods inspection/purity monitoring
• Filter control
• Condensate regulation
• Turbidity measurement in:
  • Breweries
  • Drinking water
  • Brine
• Leak detection in heat exchangers

Operating limits

Ambient conditions

• Ambient temperature range: 0 to 55 °C (32 to 130 °F)
• Storage temperature: -10 to +70 °C (+10 to +160 °F)
• Humidity: 5 to 95 %
• Degree of protection: IP 65 (NEMA 4) for all optical parts

Process conditions

• Process temperature:
  • 0 to 90 °C (32 to 194 °F) continuous
  • Max. 130 °C (266 °F) for 2 hours
• Process pressure: Max. 100 bar (1450 psi) absolute, depending on material, pipe size, and process connection of the flow assembly.

Feed water

• Measuring variable: Process absorption
• Measuring range:
  • 0 to 200 FTU
  • 0 to 200 ppm DE (diatomaceous earth)
• Wavelength: Broadband (VIS and NIR)
• Broadband filter: 780 nm and above
• Optional broadband NIR filter: Minimizes color-related measured errors.

Product water

Not specified in the extract.

Electrical

• Lamp voltage: 4.9 ± 0.1 V
• Power supply: Sensor is connected to a transmitter (e.g., Liquiline CM44P or CVM40) using cable set CUK80 (or OUK20 for CVM40). Cable set must be ordered separately.
• Electrical connection:
  • Lamp power supply: P+, P-
  • Detector signals (scattered light and transmitted light): S+, S-
  • Cable colors and assignment to transmitter terminals are detailed in the extract.
• Hazardous area approvals:
  • ATEX II 2G Ex db IIC T5 Gb
  • FM Cl.1, Div. 1, Groups B, C, D
  • Requires connection via safety barriers (e.g., MTL7760AC) or certified junction boxes depending on the approval and component.

Mechanical / hydraulic

• Sensor housing material: Stainless steel 316L
• OUA260 assembly materials: Stainless steel 316, 316L, or Kynar (customer-specific materials available).
• Cable connection ends: Nickel-plated brass
• Light source: Collimated incandescent lamp
  • Lamp operating life: Typically 10,000 h
• Detector: UV silicon detectors, hermetically sealed.
• Filter: Multilayer narrow-band interference filter.
• Dimensions:
  • Standard lamp (Dimension A): 151.3 mm (5.96 in)
  • Detector type OUSTF10 (Dimension B): 101.6 mm (4.0 in)
  • Total sensor module length is derived from lamp, detector, and assembly lengths.
  • Additional 5 cm (2") distance required on lamp and detector sides for cable connection.
• Weight: 1.225 kg (2.7 lbs.), without flow assembly.
• Mounting: Various mounting angles are acceptable, with specific preferred and forbidden orientations indicated.

Certificates and approvals

• CE mark: Complies with EU directives.
• Ex approvals: ATEX II 2G Ex db IIC T5 Gb, FM Cl.1, Div. 1, Groups B, C, D.
• FDA conformity: Non-metal parts in contact with medium meet FDA 21 CFR 177.2600. Plastic and elastomer parts passed USP <87> and <88> Class VI biological reactivity tests.

Disclaimer This summary is based on extracted text and may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror