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Memosens CFS51 PAH sensor

PAH sensor
Memosens CFS51

Memosens sensor for measuring the concentration of polycyclic aromatic hydrocarbons in discharge water of marine exhaust gas cleaning systems (EGCS) and for reliable online monitoring of oil‑in‑water to ensure environmentally compliant discharge

CFS51
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PAH sensor Memosens CFS51
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©Endress+Hauser

The Memosens CFS51 fluorescence sensor accurately measures the PAH concentration in the inlet and outlet of marine gas scrubbers (ECGS) offering all benefits of the Memosens digital sensor technology.

Solid-state reference for Memosens CFS51 PAH sensor
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©Endress+Hauser

The solid-state reference allows the ship's crew to calibrate and adjust the sensor directly on board, which helps extend the sensor's factory service interval to 4 years.

Memosens CFS51 with tiltable assembly
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©Endress+Hauser

The sophisticated design of the assembly, as well as the angled installation position in which the assembly holds the sensor, prevents air bubbles from influencing the measured value.

MQAS Solution
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©Endress+Hauser

For Exhaust Gas Cleaning Systems (ECGS), there is an all-in-one solution that incorporates the Memosens CFS51 PAH sensor, a pH sensor and a turbidity sensor. Click here for more information.

The Memosens CFS51 fluorescence sensor accurately measures the PAH concentration in the inlet and outlet of marine gas scrubbers (ECGS) offering all benefits of the Memosens digital sensor technology.

Overzicht specificaties

  • Measuring range

    0 to 5000 PAHphe
    0 to 6000 ppm
    depending on oil sample

  • Process temperature

    -5 to 55 °C (20 to 130 °F)

  • Process pressure

    10 bar abs. (just the sensor)
    6 bar abs. (combination sensor and assembly)

Toepassingsgebied

The rugged, low‑maintenance Memosens CFS51 fluorescence sensor measures polycyclic aromatic hydrocarbons (PAHs) in compliance with MEPC.259(68) and MEPC.340(77). Its solid‑state reference enables onboard calibration. As oils and hydrocarbons are critical in many processes continuous real‑time measurement ensures stable plant operation, reliable oil‑in‑water values, early deviation detection, and supports safe, environmentally friendly water discharge in industrial and environmental applications.

Memosens CFS51 measures PAHs with high accuracy in both the inlet and outlet of marine exhaust gas cleaning systems (scrubbers) and is suitable for all discharge water flow rates.

The sensor is certified by the following approval bodies:

  • DNV (Det Norske Veritas)

  • BV (Bureau Veritas)

  • ABS (American Bureau of Shipping)

  • CCS (China Classification Society) 

For washwater monitoring in EGCS, the PAH sensor is also available as an approved all-in-one solution including pH and turbidity measurement.

Voordelen

  • The uniquely long factory maintenance interval saves you a lot of costs and organizational effort

  • The optionally available flow assembly holds the sensor at the ideal installation angle to minimize disturbing influences caused by air bubbles. In addition, it can be tilted for quick mounting and dismounting of the sensor.

  • DNV approved integrated turbidity correction in the range of 0-50 FNU

  • High material compliance of sensor and flow assembly according to IACS E10 (flame retardancy)

  • The solid-state reference makes calibration very easy for the end user - and you can completely eliminate the need for toxic phenantrene, which increases safety for your employees and the environment

  • The suitability of the solid-state reference for calibration and readjustment of the PAH sensor on board was confirmed by DNV

  • Early warning to limit contamination and initiate appropriate measures, as well as real‑time monitoring to ensure reliable documentation and compliance with legal regulations

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