6565 pH/ORP Sensor

6-Series Legacy Sondes

View YSI 6-Series water quality sondes being used in a variety of water environments for long-term underwater monitoring and spot sampling.

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SKU006565


Simple, accurate pH/ORP measurement in sensors designed for minimal maintenance in sampling, profiling, and long-term monitoring applications.

This sensor must be installed into a 6-Series sonde to function. Does not function on its own.

  • Overview

    YSI pH and pH/ORP sensors have been carefully designed to perform under all ionic strength conditions, from seawater with a conductivity of 53,000 μS/cm, to "average" freshwater lakes and rivers with conductivities of 200 to 1500 μS/cm, to pure mountain streams with conductivities as low as 15 μS/cm, which has historically been the most difficult medium with respect to accuracy, quick response to pH changes, and minimal flow dependence.

    ORP is determined by measuring the potential of a chemically-inert (platinum) electrode which is immersed in the solution. The sensing electrode potential is read relative to the reference electrode of the pH probe and the value is presented in millivolts.

    6565 pH/ORP Sensor:
    The YSI 6565 pH/ORP sensor features a 'long-life' sealed gel reference, eliminating the need to refill. For high-fouling applications, the 6561FG 'flat glass' sensor is available for wiped antifouling protection on the 6600EDS V2.

    Benefits: 

    • Produces very stable readings.
    • Rugged and guarded. 

    Limitations: 

    • Not wipeable; not ideal for high-fouling environments.

    Sensor is available for use on the following sondes:

    • 600XL & 600XLM and 600XL & 600XLM V2
    • 600DW & 6920DW
    • 6820 V2 & 6920 V2
    • 6600 V2 & 6600EDS V2

    General Specifications:
    Range: 0 to 14 units
    Resolution: 0.01 unit
    Accuracy: ±0.2 unit

    Certifications:
    U.S. EPA ETV

  • Specifications
    Depth / Pressure Rating / Limit 60 m
    Equipment used with 600QS, 600OMS, 6000, All except 600R, 600LS
    Medium Fresh and Salt Water
    Monitoring Yes
    Parameters Measured pH, ORP
    Sampling Yes
    User Calibratable Yes
    User Replaceable Yes
    Warranty 1 year

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