Advanced Sensors SA-500 Side-stream Oil in Water Analyzer

Advanced Sensors SA-500 Side-stream is a side-stream Oil in Water analyzer suitable for non-hazardous areas; it uses Deep UV Fluorescence to provide continuous accurate measurements of oil concentrations in water. The analyzer detects a wide range of oils/ oil components such as fuel oils, condensates, lubricating oils, gear oils, BTEX, PAHs which are typically difficult with standard techniques as well as crude oils. The SA-500 is ideally suited for refineries, marine, industrial and water-water oil in water monitoring.

Advanced Sensors SA-500 Side-stream Features

  • Patented ultrasonic cleaning.
  • Deep UV Fluorescence.
  • Configurable measurement ranges (0-10 ppm, 0-100 ppm […] up to 0-100,000 ppm).
  • Measurement repeatability ±1% of full scale.
  • Remote management and diagnostics.
  • Easy to install (no sample conditioning required).
  • Multiple communications options – 4-20 mA, HART, Modbus, Extended Ethernet.
  • Adaptive ultrasonic cleaning.

Advanced Sensors SA-500 Side-stream Benefits

  • Robust and reliable.
  • Easy to use.
  • Low Cost of Ownership (COO) with no routine maintenance required.
  • No degradation of signal or recalibration required.
  • The side-stream format offers localized sample control.
  • Sample point facilities laboratory correlation.
  • Remote control and monitoring (suitable for unmanned locations and remote process monitoring).
  • Instantaneous measurements.


Measurement Performance

  • Measurement principle: Deep UV Fluorescence
  • Cleaning: Ultrasonic (automatic)
  • Range: 0-100,000 ppm*
  • Repeatability: ±1% of full-scale range
  • Accuracy: ±1% of full-scale range***
  • Response time: 1 Second, continuous results

Operating Conditions

  • Process temperature: Up to 100°C
  • Process pressure (MAWP): Up to 15 barg
  • Process flow: Up to 25 l/m** (for higher flow rates contact AS)
  • Operational ambient temperature: -20°C to +55°C


  • Power supply: 110 or 230 VAC (Pre-configured)
  • Power frequency: 50 or 60 Hz
  • Power consumption: 60 W normal, 300 W peak


  • Ingress protection: NEMA 4X, IP66
  • Enclosure material: 316L SS
  • CE Compliant: CE

Weight & Dimensions (for shipping)

  • Weight (including stand): 75kg
  • Dimensions: L 92 cm x W 83 cm x H 148 cm

Advanced Sensors SA-500 Side-stream Communications

  • 4-20 mA (1): Passive, Configurable for measurement readings/temperature
  • Digital Input (1): Start/Stop cycle control
  • Digital Output (s): Configurable as alarm contacts
  • Remote access: Windows Remote Desktop
  • Advanced Sensors SA-500 Side-stream Internal data storage: >10 years
  • Security: 2 level password protection

Optional Communications

  • Additional 4-20mA: Passive, Configurable for measurement readings/temperature
  • HART: Yes
  • Modbus RTU: Implemented via HART to Modbus converter
  • Extended Ethernet: 2 wire connection, capable of 1.3km distance

Additional Information

  • Pipe Diameter: 1/2” (Contact AS for other sizes)
  • Wetted parts: 316L SS (Contact as for other materials)
  • Piping connections: NPT female threaded

* Dependent on sample matrix & instrument configuration. Users may select any desired measurement from 0-10 ppm, 0-100 ppm […] up to 100,000 ppm.
** Flow rate through the analyzer measurement chamber. Flow control may be implemented externally to the analyzer to manage higher flow rates.
***Under ideal conditions, with a homogenized sample.

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