Select from the files and links below:

» Spec Sheet (PDF)   » Customer Service/Technical Support Download the free Adobe Acrobat Reader to view PDF files.

TOPAX® LF 2 Controller

• Conductivity parameter measuring and controller device (conductive conductivity)
• Temperature controller device.

  Measuring unit

• Measures: Conductivity (conductive measuring principle)
• Metering range:
         - 0 ... 2,000 μS/cm C = 0,05/cm
         - 0 ... 20,00 μS/cm C = 0,05/cm
         - 0 ... 200,0 μS/cm C = 0,05/cm
         - 0 ... 2,000 mS/cm C = 0,2/cm
  
• Temperature metering range: -22… +284 °F
• Display: Measurement values with relative units. Status messages, sensors. Calibration, controller and alarm.
• Temperature compensation: Either manual or automatic, Pt 100 measuring principle.
• Temperature coefficient: 32 - 46.4% / °F

  Controller unit

• Switch points: 2 switch points with adjustable effective direction setting
• Controller options ON/OFF controller, with optional hysteresis
• Proportional (P) controller - pulse-pause, pulse- frequency or continuous controller. Proportional integral (PI) controller - pulse-pause, pulse- frequency or continuous controller
• Hysteresis: freely adjustable within the metering range. Proportional gain KP: freely adjustable within the metering range.
• Reset time TN: 0 - 2000 sec
• Minimum impulse: 0.1 - 9.9 sec
• Pulse + pause time: 02 - 99 sec
• Impulse frequency: 100 - 7200 impulses/h
• Switch-on delay: 0 - 200 sec
• Alarm function: minimum and maximum threshold value and delay time