Flow Solution FS3700

OI Analytical Continuous Flow Analyzer

Consult Lab Solutionist

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SKU330000


The FS3700 Continuous Flow Analyzer offers efficiency and flexibility, with the reproducibility and precision you need. A continuous flow analyzer that performs flow-injection analysis (FIA) and segmented flow analysis (SFA) simultaneously! 

  • Overview

    Continuous Flow Analysis for a Variety of Industries

    Automating Wet Chemistry Analysis, for Every Industry.

    The FS3700 is a multi-parameter benchtop instrument that measures several critical parameters like ammonia, nitrate, nitrite, phosphorous and silica, TKN, and more. 

    The unit comes standard with two detector boards, each capable of supporting photometric, amperometric, ion-selective electrodes, and third-party detectors out of the box. This provides flexibility to tailor methodology for research or quality control processes.

    Flexible and Modular Continuous Flow AnalysisFlexible and Modular Design

    The unique, modular design of the FS 3700 gives the system superior flexibility. Different flow methods, including SFA (segmented flow analysis), FIA (flow injection analysis), iSFA, and SFIA can be run on different channels on the system simultaneously.

    A variety of pre-configured chemistry cartridges and industry-leading detectors can be utilized with plug-and-play ease. Multiple systems can be linked to provide additional channels of concurrent analysis.

    Methods for aqueous samples, soil or plant extracts are available to support environmental compliance monitoring, process optimization and research applications. Validated Methods

    OI Analytical validates the hardware configuration and performance of every method supplied with the FS3700 analyzer, providing users a total analysis solution.  The instrument utilizes interchangeable, pre-assembled chemistry cartridges for maximum versatility and ease of use. Methods for aqueous samples, soil, or plant extracts are available to support environmental compliance monitoring, process optimization, and research applications. 

    The FS3700 features an open benchtop layout, and intuitive software platform, and a USB port for data retrieval and exporting purposes.Easy Data Retrieval and Exportation

    The FS3700 features an open benchtop layout, an intuitive software platform, and a USB port for data retrieval and exporting purposes, making FS3700 the easiest to use and most cost-effective way to measure the following chemistries in a wide range of application areas:


    Powerful Software Capabilities

    FlowView Software

    The intuitive FlowView software is unparalleled in competitive systems. Designed for 32- or 64-bit Windows® operating systems, FlowView’s improved user interface streamlines scheduling, operation, and report generation from the FS 3700. The icon-driven user interface simplifies navigation and helps new users quickly become proficient.


    • On-the-fly sequence editing and calibration monitoring

    • LIMS-compatible import/export with user-friendly, customizable report generation

    • New, refined algorithms for peak detection, baseline handling, and carry-over correction

    • System configuration and method parameters are archived with the data in each result file

    • Unparalleled access to instrument comp

  • Specifications
    FS 3700 Specifications  
    Analysis Module 1 or 2 chemical analysis channels per chassis
    Analysis Module Dimensions 31 in. W x 17.5 in. D x 10.5 in. H
    78.74 cm W x 44.45 cm D x 26.67 cm H
    FS 3700 Dimensions with 90-position Autosampler Approximately 44 in. (112 cm) W
    FS 3700 Dimensions with 360-position Autosampler Approximately 51.5 in. (131 cm) W
    Injection Valve 8 or 10-port switching valve with chemically-inert wetted surfaces
    Photometric Detector 420-880 nm, with PEEK path lengths of 5-, 10- or 20-mm
    Amperometric Detector Silver working electrode
    silver/silver chloride reference
    stainless steel counter electrode
    In-line Heater Included as needed, mounted underneath chemistry cartridge
    user programmable in 1 ̊C increments
    UV-digestion Module Included as needed, mounted underneath chemistry cartridge
    Peristaltic Pump 24-channel, fits on top of analysis module
    Autosampler 90-position, X-Y-Z (90 samples + 9 standards)
    360-position, X-Y-Z (360 samples + 10 standards)
    Tubing FEP Teflon® and EVA ethylene-vinyl acetate copolymer
    Manifolds / Fittings Polysulfone
    Analysis Methods / Documentation Validated chemistries for specific analytes / sample matrices with performance data
    Operating Software FlowView
    Operating System Windows® 7, Windows® 8, 8.1 and 10
    Data Collection 6 channels per instance of software
    Multiple instances of software can be run on a single computer
    PC to FS 3700 Communications USB
    Power Supply 24VDC universal switching power supply for operation with 90-250VAC 50/60Hz source
    Power Requirements 110VAC/60 Hz or 230VAC/50 Hz
    Weight (Analysis Module) 19.5 kg (43 lbs.), typical for analysis module and pump, two injection valves, chemistry cartridges, detector modules
    Certifications CE Safety EN 61010-1
    EMC Immunity & Emissions EN 61326-1:2006
  • Video

    How to Program the FS3700 Pump

    Flow Solution 3700 Automated Chemistry Analyzer

    OI Analytical's FS 3700 automated chemistry analyzer features game-changing technology that significantly improves laboratory workflow including pre-configured, interchangeable chemistry cartridges, plug-n-play detectors, and powerful, easy-to-use software.

    OI Analytical Continuous Flow Analyzer

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