OUSAF44

Summary

Product identification

• Product Name: OUSAF44
• Product Type: Optical sensor for UV absorption measurement

Application

The OUSAF44 sensor measures the spectral absorption of process liquids in the ultraviolet (UV) region. Applications include:

• Protein concentration measurement
• Chromatography monitoring
• Filtration monitoring
• Organic compound concentration measurement
• Aromatic compound detection

Operating limits

Environmental conditions

• Ambient temperature: 0 to 55 °C (32 to 131 °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

Measured variable

• UV-absorption

Measuring range

• 0 to 2.5 AU
• Max. 50 OD (depending on the optical path length)

Wavelength

• Discrete wavelengths at 254, 280, 295, 302, 313, or 365 nm. More wavelengths are available on request.

Product water

Not specified in the extract.

Electrical

• Power supply: Provided by associated transmitter via cable set.
• Electrical connection: Via pre-terminated or labeled cable set CUK80 (for CM44P) or OUK40 (for CVM40).
• Lamp voltage:
  • 10.0 ± 0.1 V (when connected to CM44P)
  • 11.9 ± 0.1 V (when connected to CVM40)
• Maximum cable length: 100 m (330 ft)

Mechanical / hydraulic

• Sensor housing material: Stainless steel 316
• Cable connector ends material: Nickel-plated brass
• Lamp type: Low-pressure mercury lamp
• Lamp operating life: Typically 3000 hours, minimum 1000 hours.
• Warm-up period: 30 minutes for the lamp to reach full capacity.
• Detector type: UV silicon detector, hermetically sealed.
• Filter type: Multilayer interference filter.
• Dimensions:
  • Lamp module (A): 142 mm (5.60 inches)
  • Standard detector (B): 60.2 mm (2.37 inches)
  • Easycal detector (B): 69 mm (2.70 inches)
• Weight:
  • UV lamp: 0.58 kg (1.28 lbs)
  • UV lamp with wire-braided cable and junction box (hazardous area): 3.2 kg (6.66 lbs)
  • Easycal detector: 0.65 kg (1.43 lbs)
  • Standard detector: 0.36 kg (0.794 lbs)
• Flow assembly: OUA260 (dimensions and details in TI00418C)
• Hygienic design: Compliance with life sciences sector requirements, with FDA- and USP-compliant sealing materials. SIP/CIP resistant.
• Optional features: Air purge ports, adjuster for optical path length.

Hazardous area information

• Approvals: FM and ATEX approved lamps available.
• Detector: Intrinsically safe, suitable for Zone 1 and Class I, Division 1 environments when connected via a safety barrier (MTL7760AC).
• Lamp connection: Requires connection via a certified junction box for hazardous areas.

Calibration

• Integrated reference detector: For lamp compensation.
• Optional Patented Easycal system: Enables cost-effective, time-efficient, and in-line calibration traceable to NIST without liquid standards.

Disclaimer: This summary is extracted from a datasheet and may not include all figures, footnotes, or revisions. Contractual data must be confirmed against the specific revision of the OEM PDF used for the project.

Official datasheet (PDF)

Lenntech datasheet mirror