OUSAF21

Summary

Product identification

• Product name: OUSAF21
• Description: Optical sensor for the measurement of low color concentrations.
• Document identifier: TI00471C/07/EN/02.16
• Document revision: 02.16

Application

• Primary use: Measure color concentrations in the low measuring range of the visible electromagnetic spectrum.
• Specific applications:
  • Color scale measurement (APHA/Hazen, potassium permanganate in water)
  • Measurement of color concentration:
    • Outgoing goods inspection/purity monitoring
    • Color assurance
    • Discoloration control
    • Distillation monitoring

Operating limits

• 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 temperature (continuous): 0 to 90 °C (32 to 194 °F)
• Process temperature (max): 130 °C (266 °F) for 2 hours
• Process pressure (max): 6 bar (84 psi) absolute, depending on material, pipe size, and process connection of the flow assembly.

Feed water

• Measuring principle: Light absorption, based on the Lambert-Beer law.
• Compensation: Integrated reference detector for compensation of particles, bubbles, and lamp aging.
• Wavelengths:
  • Measurement: 400 nm, 420 nm, 520 nm
  • Reference: 720 nm

Product water

• Measuring range:
  • 0 to 2.5 AU
  • Max. 50 OD (depending on the optical path length)
• Quality: Detects slightest color changes, direct concurrence with laboratory values.

Electrical

• Lamp voltage: 4.9 ± 0.1 V
• Lamp operating life: Typically 10,000 h
• Connection: Via CUK80 cable set to Liquiline CM44P transmitter or OUK20 cable set to CVM40 transmitter.
• Maximum cable length: 100 m (330 ft)
• Hazardous area approvals:
  • ATEX II 2G Ex db IIC T5 Gb
  • FM Cl.1, Div. 1, Groups B, C, D
• Detector type: Silicon photovoltaic cells, intrinsically safe for Zone 1 environments.

Mechanical / hydraulic

• Sensor housing material: Stainless steel 316L
• Cable connection ends material: Nickel-plated brass
• Lamp types:
  • High-luminescence lamp
  • Gas-filled high-performance lamp
• Detector type: UV silicon detectors, hermetically sealed
• Filter type: Multilayer narrow-band interference filter
• Weight: 1.225 kg (2.7 lbs.), without flow assembly
• Dimensions:
  • Lamp module (A): 33.78 mm (1.33 in.)
  • Flow assembly (B): Varies by path length (150 mm to 300 mm / 5.9 in. to 11.8 in.)
  • Detector module (C): 101.6 mm (4.0 in.)

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