Automated Filtration Systems

FilterTec™ Normal Flow Filtration* (NFF) System

Direct Flow Filtration System

Dead-End Filtration System Direct Flow Filtration with Constant Rate and Pressure Dead-End Filtration System Normal Flow Filtration FilterTec SciDoc Data Collection Direct Flow Filtration

*aka: Dead-End Filtration or Direct Flow Filtration

FilterTec Advantage:

  • Patented filtration method provides significant cost savings. This automated method results in a 30-50% increase in filter capacity utilization.
  • Dedicated application tools for filterability testing and Vmax determination with automated data collection of up 15 filtration parameters.
  • No need for manual data collection.
  • The FilterTec is easy to use and has a small (6” x11”) footprint.

Automated Normal Flow Filtration (NFF):

Laboratory Filtration, up to 4.0 liters/min

  • FilterTec NFF System provides significant cost savings when used with any commercially available membrane or depth filters.
  • The FilterTec utilizes a peristaltic pump head as well as a disposable pressure sensor (see SciLog’s disposable sensors).
  • A user-selected pump rate (or time-based rate ramp) is implemented until a user-defined pressure level is reached, e.g. 20 psi. Normal Flow Filtration with Constant Rate and Pressure
    Figure 1 (Click To Enlarge)
  • At this point, the filter is substantially plugged-up, the FilterTec switches from a rate control to a pressure controlled fluid delivery.
  • The FilterTec automatically maintained the selected pressure limit by modulating, i.e. decreasing, the pump output.
  • When the pump output reaches a user-selected lower pump rate limit, e.g. 1 ml/min, the FilterTec safely stops the filtration process.
  • The filtration progress is graphically shown in Figure 1. In this example, a Sartobran 300 was used to filter a diluted protein solution. Under the flow rate and pressure conditions shown, a filtrate volume of 1491 ml was collected during the constant pump rate interval. An additional 715 ml of filtrate was collected during the constant pressure (20psi) interval.

Automated Filter Capacity Determination, Vmax:

Generates/documents Filtration Scale-up Data FilterTec Automated, Excel-Based Data Collection
SciDoc (Click To Enlarge)
  • For Vmax determinations the FilterTec utilizes a pressure sensor and an electronic scale. The FilterTec rapidly ramps up the pump rate and maintains a user-selected pressure.
  • The FilterTec collects and documents the filtrate weight. The parameter “Time/Filtrate Weight” is plotted against “Time”. The inverse of the resulting slope represents Vmax. See Figure 2
  • Up to 15 filtration parameters are monitored and documented during filtrate collection. (listed below)
Documented Filtration Parameters:
  • Time: HH:MM:SS
  • Elapsed Time
  • Filtrate Weight (FQ)
  • Nominal Pump Rate (FF)
  • Filtrate Rate, Scale, (FP)
  • Constant Rate Quantity (CPQ)
  • Constant Pressure Quantity (CPQ)
  • Inlet Pressure, Filter #1 (P1)
  • Inlet Pressure, Filter #2 (P2)
  • Inlet pressure, Filter #3 (P3)
  • Time / Weight Ratio (T/W)
  • Maximum Filtrate Volume, Vmax
  • Filter Flux (LMH)
  • Pump Direction (CW/CCW)
  • Alarms:
    • HP= Hi Pressure
    • LF= Lo Flow
    • FW= Filtrate Weight

 

 

Product Literature

Manuals

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FilterTec™ Plus Simultaneous Three Filter Capacity Testing System

 

Simultaneous Filter Testing - Normal Flow FiltrationSimultaneous Filter Testing

Dead-End Filtration System Filter Testing Direct Flow Filtration Filter Testing Filter Testing Close Up Of Filtration Filter Element

FilterTec Plus Advantage:

  • Filterability Studies, Filter Size Determination and Filter Scale-up Studies
  • The FilterTec Plus has expanded capabilities. Handles up to three electronic balances and controls three pump heads simultaneously.
  • Allows for testing of three identical filters at the same rates or three different filters at the same pressure.
  • Parallel processing of a solutions through three filters provides statistically verification of filter capacity.

FilterTec Plus + SciDoc = Automated Data Collection:

  • FilterTec Plus provides data acquisition and data trending of filtration parameters for instantaneous filtration and status overview.
  • SciDoc Documentation package captures all data in an Excel sheet and populates graphs in real-time.
  • No need for operator writing, copying and calculations. The FilterTec plus is easy to use and has a small footprint (6”x11”).

FilterTec Plus Flow Rate Options:

Simultaneous Filter Testing - Dead-End Filtration System
Click To Enlarge
Pump Head / Motor Combinations
Models Max RPM Flow Range*
CP-8 8 RPM 0.03 to 24.3 ml/min
CP-120 160 RPM 0.5 to 554 ml/min
CP-200 600 RPM 59 to 2258 ml/min
* Each FilterTec Plus has three (3) channels

FilterTec Plus Product Options & Accessories:

  • An optional printer is used for data summaries and documentation.
  • Alternatively, SciDoc Documentation software with customized macros is used to summarize the filtration data (in Excel) and create graphical representations of your data on your PC with the press of a button.
  • The FilterTec Plus is compatible with all manufacturers' Filters.

 

 

Product Literature

  • FilterTec Plus Product Brochure Letter  A4

Related Downloads

Manuals

View Product Specifications Request Product Information »

Filter Capacity Determination, Vmax, Vmax Determination, filterability, normal flow filtration, filtration