Potentiometric pH sensor for pure water and low conductivity media (>2 μS/cm)

  • 2-wire loop powered, 4…20 mA/HART® 7, for direct connection to a PCS
  • Process connection: PG13.5
  • 0…14 pH; Max. +80°C / +176°F; 12 bar / 174 psi
  • Glass sensor with 3 ceramic diaphragms and Pt1000 for temperature compensation
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    The SMARTPAT PH 8530 is a 2-wire loop powered pH sensor for pure water applications. The glass sensor features three diaphragms for optimal measurements in low conductive media (>2 μS/cm). It also comes with integrated Pt1000 for temperature compensation. Offline calibration of the sensor is possible under controlled conditions, generating cost savings due to less operator time on-site and longer sensor lifetime.

    The SMARTPAT PH 8530 is part of the SMARTPAT product family - the first sensor line in the market featuring an integrated transmitter (HART® 7) with built-in fieldbus communication and current output. The real open standard enables a direct connection from the sensor to the process control system. Unlike other commercially available pH sensors, there is no need for external transmitters. Thus, price and maintenance costs of the complete measuring point are considerably reduced.

    Product highlights

    • No external transmitter needed
    • Offline calibration under controlled conditions: Cost savings due to less operator time on-site and longer sensor lifetime
    • Three diaphragms for optimal measurement in low conductive media
    • No interference of the high ohmic signal between sensor and transmitter possible
    • With integrated temperature sensor and standard VP2 connector
    • Free of charge PACTware FDT/DTM for easy handling of offline and online configuration
    • Direct connection via standardized fieldbus (HART® 7)
    • Various mounting assemblies for easy installation and reliable handling

    Typical applications

    Various industries

    • Control of reverse osmosis
    • Monitoring of cooling water
    • Monitoring of boiler feed water
    • Media with high organic load

    Water industry

    • Potable water disinfection


    • Monitoring of swimming pool water quality
    • Detergent monitoring

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