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  • As the name implies, the OmniSIA is built for versatility. By combining elements of flow injection and sequential injection, we are able to achieve unique combinations of high throughput and low reagent consumption.

    The OmniSIA can be configured to measure both a sensor’s “impulse response” and “step response”, so the sensor’s performance can be fully characterized in an automated manner. For micro-sized sensors or ultra-sensitive applications where pulseless flow is critical, we will outfit the OmniSIA with a high-precision syringe pump.

    This instrument has been used for the following applications: gas diffusion, dialysis, low pressure column separations, the exploration of chemical reactions, and more. As mentioned, the versatility of this instrument makes it a unique answer to many analytical questions. Tell us about your application, and we’ll gladly recommend you the most suitable instrument. We’ll even work with you to build method scripts, protocols, and custom data reports.

  • Analyzer
    Type: Sequential Injection Analyzer
    Enclosure material: Aluminum (powder-coated / anodized)

    Download Specifications

    Peristaltic Pump
    Type: 4-channel peristaltic, common pressure plate
    Materials: Aluminum, stainless steel
    Tubing type: 2-stop elastic tubing
    Flow rate: 0.5-5.0 mL/min per channel (1.02 mm ID tubing)
    0.3-2.8 mL/min per channel (0.76 mm ID tubing)

    Syringe Pump
    Type: High-precision syringe pump
    Wetted materials: Glass, Teflon®, PCTFE
    Syringe sizes: 50 μL, 100 μL, 250 μL, 500 μL, 1.0 mL, 2.5 mL,
    5.0 mL, 10 mL, and 25 mL
    Resolution 48,000 steps per full stroke
    Speed: 1.2 sec – 20 min per full stroke
    Port type: Flat-bottom ¼-28

    Type: 8-port multiposition selector valve. 6-port and 10-port also
    available. Optional Lab on Valve® manifold for 6- and 8-port valves.
    Wetted materials: PPS, Valcon E2 (proprietary reinforced PTFE composite). In the case of Lab on Valve® manifold also Ultem® or Plexiglas.
    Port type: Flat-bottom ¼-28

    Relay output
    Voltage: 24 V
    Current: Max 4 mA

    Height: 11.5 in (29 cm)
    Width: 11.5 in (29 cm)
    Depth: 9.5 in (24 cm)
    Weight: 20 lb (9 kg)

    Type: USB
    Output: 1 Serial RS-485 port
    Control options: SIAsoft software

    Power requirements
    Voltage: 24 VDC
    Current: max 3.75 A


Sequential injection analysis is an intricate, dynamic analysis technique. The sheer number of actions, flow paths, and valves requires powerful computer control. As a result, we created SIAsoft. This new software packs a plethora of useful functions into a user-friendly interface. You can even use Python Scripting to build custom methods. Click below to find out more.

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Or, call us at 206-258-2290. One of our expert sales staff will be sure to help you.