• WTW - Ultrapure Water Conductivity Measuring Cells LR 325/01 and LR 325/001
  • WWTW - Ultrapure Water Conductivity Measuring Cells LR 325/01 and LR 325/001

WTW - Pure water conductivity measuring cells LR 325/01 and LR 352/001

  • SKU: 301961
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  • Description
    Conductivity of ultra pure water and low conducting solutions
    Two electrode measuring cells with concentric electrodes of stainless steel and flow vessels made of glass or stainless steel for measurements of ultra pure water

    - Precise measured values thanks to concentric electrodes without boundary fields
    - Includes flow vessels to prevent wrong results due to carbon dioxide
    - No polarization effects thanks to stainless steel electrodes
    Ultrapure water conductivity cell with built-in temperature sensor and waterproof plug, cell constant K = 0.1 cm-1, glass flow-through vessel D01/T.
    Trace conductivity cell with built-in temperature sensor, cable and waterproof plug, cell constant K = 0.01 cm-1, stainless steel flow-through vessel.
  • Specifications

    Model

    LRD 01

    LRD 325

    LR 325/01

    LR 325/001

    TetraCon® 325

    TetraCon® DU/T

    Order No.

    302220, 302222

    302225, 302229

    301961

    301962

    301960, 301970, 301971

    301252

    Measuring principle

    2 electrodes measuring cell

    4 electrodes measuring cell

    2 electrodes measuring cell

    4 electrodes measuring cell

    Measuring Range

    0.001 µS/cm ... 200 µS/cm

    1 µS/cm ...
    2 S/cm

    0.001 µS/cm ... 200 µS/cm

    0.0001 µS/cm ... 30 µS/cm

    1 µS/cm ...
    2 S/cm

    Cell constant

    0.1 cm-1, ±2%

    0.475 cm-1, ±1.5%

    K = 0.1 cm-1

    K = 0.01 cm-1

    K = 0.475 cm-1

    K = 0.778 cm-1

    Resolution

    Depends on measuring range

    Temperature sensor

    Integrated NTC

    Temperature Measurement

    0 °C ... +130 °C

    0 °C ... +100 °C

    -5 °C ... 80 °C

    0 °C ... 60 °C

    Maximum pressure

    14 bar (at 20 °C)

    10 bar (at 20 °C)

    2 bar

    Electrical Connection

    Integrated PU connection cable with 7-pole screw plug (IP 65)

    Integrated cable mit 8-pole plug

    8-pole socket for cable KKDU 325

    Mechanical

    Shaft

    Stainless steel 1.4571

    Epoxy

    POM

    Kable gland

    Brass, nickel-plated

    —

    —

    —

    —

    Connection head

    —

    —

    POM

    —

    Electrodes

    Stainless steel 1.4571

    Graphite

    Stainless steel 1.4571

    Graphite

    Protection Rating

    IP65

    IP68
    (Sensor and cable)

    IP65
    (when connected)

    (when connected)

    (Measuring cell until immersion length)

    Weight (without cable)

    Approx. 350 g

    Approx. 300 g

    Approx. 135 g

    Approx. 280 g

    Approx. 135 g

    Approx. 170 g

    Warranty

    2 years on defects in quality according to § 10 terms of conditions

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