Royce Model 711 Portable Suspended Solids Analyzer




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  • Overview

    The Royce Model 711 Portable Suspended Solids/ Interface Level Analyzer is a rugged, waterproof instrument designed for the demands of portable sampling. The meter provides reliable operation in wastewater treatment plants, rivers, lakes and other aqueous systems, and has two measurement modes that read out in either grams per liter or percentage of relative density. Calibration values for total suspended solids and interface level are stored in two separate nonvolatile memory locations allowing the user to switch between operational modes without having to recalibrate daily. Typical use requires monthly calibration.

    The Model 711 analyzer includes the Model 71 medium range sensor. The sensor is reliable and rugged, with a waterproof and polymer optical grade lenses. It is designed specifically to meet the rigorous demands of a portable sensor. Order the 711 with an 8-meter or 25-foot cables. Additionally, instruments and cables are sold separately.


    • Rugged, waterproof housing
    • Two measurements in one instrument (TSS & Interface Level); switch without losing calibration
    • Microprocessor based; stored calibration values
    • Automatic ranging
    • Simple calibration stored in instrument
    • Self-diagnostics
    • 9V battery with automatic shutoff
    • 8-meter or 25-foot waterproof sensor cable with military connector

  • Specifications

    ± 5% of reading or ± 100 mg/l, whichever is greater


    1/2” LCD digital display



    Material Polyurethane body, Optical grade polymer lenses
    Measurement Range

    .01 to 10 grams per liter (10 to 10,000 mg/l)

    .01 to 10 g/l

    Operating Limits

    Temperature: 0 to 65ºC,  Pressure: 0º 50 PSIG

    Power Standard 9V battery

    ± 1% of reading or ± 20 mg/l, whichever is greater

    Sensor Single Gap, Optical

    7” L x 3.2” W x 1.5” D

    4” L x 2” D

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