Cookies on the OMEGA websites
We use cookies on this website, these cookies are essential for the website to work correctly.If you continue without changing your settings, we'll assume that you are happy to receive all cookies on this website.To find out more information about these cookies please click here.
Basket  |  Contact  |  Help  | 
Free Phone0800 488 488
International+44(0) 161 777 6611

Your Source for Process Measurement & Control

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)

What Other People Bought: When you see this icon, click on it to expand a list of products that other people have bought when they purchased this model.

Part Number/ Desc.
Click to expand/minimize a list of what others bought with theCDTX-111
CDTX-111 Star
Availability: In Stock
Conductivity monitor and controller, ⅛ DIN
CDTX-112 Star
Availability: In Stock
Conductivity monitor and controller, ¼ DIN
Conductivity Cells (see pdf data sheet for dimensions and specifications)
CDE-100-001 Star
Availability: In Stock
Conductivity electrode with cell constant of 0.01 for CDTX-111 or CDTX-112
CDE-100-01 Star
Availability: 3 weeks
Conductivity electrode with cell constant of 0.1 for CDTX-111 or CDTX-112
CDE-100-1 Star
Availability: 1 week
Conductivity electrode with cell constant of 1.0 for CDTX-111 or CDTX-112
CDE-100-10 Star
Availability: In Stock
Conductivity electrode with cell constant of 10 for CDTX-112
CDE-100-30 Star
Availability: In Stock
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