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Conductivity and Temperature Monitor and Controller

CDTX-111 & CDTX-112

CDTX-111_CDTX-112 Series Conductivity controller | CDTX-111 & CDTX-112

CDTX-111_CDTX-112 Series Conductivity controller

  • Dual 10 Amp Relays for On/Off Control or Alarms. Selectable Hysteresis
  • 4-20 mA Analogue Retransmission of Measured Conductivity or Temperature
  • Automatic or Manual Temperature Compensation
  • 1/4 or 1/8 DIN Panel Mount
  • Conductivity Cells with Constants of K = 0.01, 0.1, 1, 10 or 30
  • Conductivity ranges of 19.99, 999.9 or 9999 µS/cm; 100 or 600 mS/cm depending on controller & electrode
Conductivity Instrumentation - View related products


Industrial conductivity & temperature monitors with dual 10 A relays for on-off control or alarm outputs. Models CDTX-111 (⅛ DIN) & CDTX-112 (¼ DIN) are panel mount instruments for in-line monitoring of industrial process conductivity. Range switch over and cell constant check can both be freely set and adjusted during operation.

Signal processing technology makes measurements accurate and operation stable; other features include linearised data, automatic temperature compensation, isolated 4-20 mA analogue output for retransmission of measured conductivity or temperature, and maintenance-free conductivity cells.

Display Type
    CDTX-111: LED, 13 mm height
    CDTX-112: LCD, 13 mm height
Measurement Range (Depending upon cell constant)
    k=0.01: 0 to 18 MΩ or 0 to 19.99 µS/cm
    k=0.1: 0 to 199.9 µS/cm
    k=1: 0 to 1999 µS/cm
    k=0.01: 0 to 18 MΩ or 0 to 19.99 µS/cm
    k=0.1: 0 to 999.9 µS/cm
    k=1: 0 to 9999 µS/cm
    k=10: 0 to 100 mS/cm
    k=30: 0 to 600 mS/cm
    Temperature: 0 to 100°C
Resolution (depends on range/cell constant)
    CDTX-111: 0.01 MΩ, 0.01 to 1 µS/cm
    CDTX-112: 0.01 MΩ, 0.01 to 1 µS/cm, 1 mS/cm
    Temperature: 0.1°C
Accuracy: ±1% FS, ± 0.2°C
Temperature Compensation: Auto/manual, 0 to 100°C
Output Relays: 2 programmable, 10 Amp
    Control Type: On/off
Relay Set Point Hysteresis: User programmable
Current Output
    Type: Isolated 4 to 20 mA
    Range: Selectable zero and span
    Accuracy: ±0.02 mA
    Maximum Load: 750 Ω
Power Supply: AC 110V to 220V ±10%, 50/60 Hz
    CDTX-111: 580 g
    CDTX-112: 650 g
    CDTX-111: 96 × 48 × 110 mm; ⅛ DIN
    CDTX-112: 96 × 96 × 110 mm; ¼ DIN
Mount Type: Panel
    Cut-Out Size
    CDTX-111: 92 × 44 mm; ⅛ DIN
    CDTX-112: 92 × 92 mm; ¼ DIN
Enclosure Rating: IP54
Environmental Operating Conditions
  Ambient Temperature: -10 to 55°C
  Relative Humidity: 5 to 95% non-condensing
Place Order(Specify Model Number)
Part Number/ Desc.
Consult Sales  
Conductivity monitor and controller, ⅛ DIN
Availability: 6 weeks
Conductivity monitor and controller, ¼ DIN
Conductivity Cells (see pdf data sheet for dimensions and specifications)
Availability: 2 weeks
Conductivity electrode with cell constant of 0.01 for CDTX-111 or CDTX-112
Availability: In Stock
Conductivity electrode with cell constant of 0.1 for CDTX-111 or CDTX-112
Availability: 2 weeks
Conductivity electrode with cell constant of 1.0 for CDTX-111 or CDTX-112
Availability: 6 weeks
Conductivity electrode with cell constant of 10 for CDTX-112
Consult Sales  
Conductivity electrode with cell constant of 30 for CDTX-112
All amounts shown in EUR, GBP, or USD
Note: Comes complete with operator’s manual.

Product Manuals:

Download Conductivity Monitor
Download Conductivity Monitor
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