Advanced Sensors EX-400 Side-stream Oil/Particulate in Water Analyzer


Advanced Sensors EX-400 is a side-stream unit that uses video microscopy to measure concentrations of oil in water, Total Suspended Solids (TSS), oil droplet size, and gas bubble size, whilst still taking advantage of patented self-cleaning technology to keep fouling from impacting the data gathered.

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Advanced Sensors EX-400 Features

  • Patented ultrasonic cleaning
  • Video microscopy measurement
  • Periodic homogenization of sample
  • Advanced Sensors EX-400 Sample access point
  • Various microscopy measurement ranges configurable
  • Measurement repeatability ±4% of full-scale range
  • Particle and droplet size information e.g. Dv10, Dv50 and Dv90 data
  • Immediate on-screen results
  • Remote management and diagnostics
  • Easy to install (no sample conditioning required)
  • Multiple communications options – 4-20mA, HART, Modbus, Extended Ethernet
  • Data and image storage on analyzer for up to 120 days
  • Automatic PDF report generation
  • Turbidity detection enables user to identify process upsets


  • Advanced Sensors EX-400 Easy to use
  • Ability to measure and distinguish between oil, solids and gas particles
  • Low Cost Of Ownership (COO) with no routine maintenance
  • No degradation of signal or recalibration required
  • Sidestream format offers localized sample control
  • Sample point facilitates laboratory correlation
  • Remote control and monitoring (suitable for un-manned locations and remote process monitoring)

Advanced Sensors EX-400 Specifications

Microscopy Specification

  • Measurement principle: CCD Camera 2D Image
  • Image resolution: 2 Million Pixels
  • Advanced Sensors EX-400 Illumination: Controlled LED
  • Number of images per dataset: 1-500 Images (User Configurable)
  • Time between each image: 1 to 10 Seconds (User Configurable)
  • Imaging modes: Flowing and static modes

Microscopy Image Processing

  • Advanced Sensors Image Processing Engine (no 3rd party Algorithms)
  • Shape and object matching used to classify objects in the image
  • No need to change parameters for different turbidity samples, due to automatic exposure time and multi-level image threshold algorithms

Microscopy Measured Items

  • Content (ppm): Hydrocarbon Droplets, Suspended Solids, Gas Bubbles
  • Size distribution: Hydrocarbon Droplets, Suspended Solids, Gas Bubbles
  • Turbidity: Measurements in AU***

Microscopy Concentration Measurement

  • Range: 0-500 ppm*
  • Calibration: 4 parameter curve fit with gain correction
  • Repeatability: ±4% of full-scale range
  • Units of measure: ppm or mg/l

Microscopy Measured Parameters

ppm, % Concentration, High sensitivity circularity, Convexity, Size, Diameter ped (circle of equal perimeter), Length, Width, Turbidity, No. of Objects Per Image, Aspect Ratio, Elongation, Dv10, Dv50, Dv90, Dn10, Dn50, Dn90, Configurable Object Sharpness, Volume, Area

Microscopy Size Range

  • Dimensional range: 1-450 µmǂ
  • Repeatability: ±4% of full-scale range
  • Calibration: Particle size calibrated with standardized beads

Advanced Sensors EX-400Microscopy Turbidity

  • Range: 0-1,500 AU Light
  • Optional Turbidity high alarm: Reports high ppm and Out of Range
  • Measurement timeline: Every Image Cycle

Data Storage

  • Advanced Sensors EX-400 Image storage: 30-60 days depending on schedule
  • Data of every particle measured: 120 days storage

Operating Conditions

  • Process temperature: Up to 160°C
  • Process pressure (MAWP): Up to 35 barg
  • Advanced Sensors EX-400 Process flow: Up to 10 l/m**
  • Operational ambient temperature: -20°C to +55°C
  • Cleaning: Ultrasonic (automatic)

Advanced Sensors EX-400 Utilities

  • Power supply: 110 or 230 VAC (Pre-configured)
  • Power Frequency: 50 or 60Hz
  • Power consumption: 60W normal, 300W peak
  • Air consumption: 450ml per rotation

Weight & Dimensions (for shipping)

  • Weight (including stand, standard pneumatic Stainless Steel valve assembly, termination box and isolation switch): 200kg
  • Advanced Sensors EX-400 Dimensions: L 92 cm x W 83 cm x H 148 cm

Advanced Sensors EX-400 Communications

  • Advanced Sensors EX-400 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
  • System 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

Advanced Sensors EX-400 Additional Information

  • Advanced Sensors EX-400 Flange fitting: 1” ANSI RF (various flange ratings available)
  • Wetted parts: 316SS (other materials available upon request)
  • Manual sample take-off point: Integral to analyzer
  • Viewing window: Provided as standard
  • Ultrasonic Homogenisation: Automatic oil droplet size compensation
  • Enclosure material: 316L SS

* Dependent on sample matrix & instrument configuration. Please contact Advanced Sensors Applications Team for confirmation.
** Flow rate through the analyzer measurement chamber. Flow control may be implemented external to the analyzer to manage the flow rates.
*** Attenuation units.
ǂ Theoretical, based on CCD array size
Download Datasheet: Advanced Sensors EX-400 Side-stream Oil/Particulate in Water Analyzer


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