CX105 Conductivity Transmitter (Loop-Powered)
Brand Chemical Supplies provides the CX105, a rugged and reliable loop-powered transmitter designed for continuous conductivity monitoring in demanding industrial environments. By converting the raw signal from a conductivity sensor into a stable 4-20mA output, the CX105 allows for seamless integration into PLCs, SCADA systems, and digital controllers over long distances without signal degradation.
Technical Specifications
| Feature | Specification |
| Output Signal | 4 \sim 20 mA (Two-Wire Loop Powered) |
| Measurement Range | Programmable (e.g., 0 \sim 1999 \mu S/cm, 0 \sim 19.99 mS/cm) |
| Power Supply | 12 \sim 36 V DC |
| Accuracy | \pm 1\% of Full Scale |
| Temperature Comp. | Automatic (ATC) via Pt100 or Pt1000 |
| Enclosure | NEMA 4X / IP65 (Weatherproof) |
| Mounting | Wall, Pipe, or Panel Mount |
Key Features & Benefits
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Two-Wire Loop Technology: The CX105 uses the same two wires for both power and signal transmission. This significantly reduces installation costs by requiring less cabling and simplified wiring compared to four-wire transmitters.
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Isolated Output: Features high-grade galvanic isolation to prevent ground loops and protect your control system from electrical noise often found in heavy industrial plants.
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Field-Adjustable Calibration: Equipped with non-interactive Zero and Span potentiometers (or digital push-buttons depending on the sub-model), allowing for easy on-site calibration using standard conductivity solutions.
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Universal Sensor Compatibility: Designed to work with a wide variety of 2-electrode or 4-electrode conductivity cells, ensuring flexibility across different water qualities—from ultra-pure water to high-salinity process fluids.
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Durable Industrial Housing: The IP65-rated enclosure is resistant to chemical fumes, moisture, and dust, making it suitable for installation directly at the point of measurement in chemical processing areas or outdoor water treatment skids.
Primary Applications
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Reverse Osmosis (RO) Systems: Monitoring permeate quality to ensure membrane integrity.
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Cooling Tower Control: Automating the “bleed and feed” process by monitoring dissolved solids (TDS) levels.
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Boiler Feedwater: Ensuring low conductivity to prevent scaling and corrosion in high-pressure boilers.
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Wastewater Treatment: Monitoring neutralized effluent before discharge to ensure compliance with municipal regulations.
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Chemical Concentration: Controlling the strength of acid or alkali baths in metal finishing and CIP (Clean-in-Place) systems.
Installation & Wiring
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Wiring: Connect the positive ($+$) lead from your 24V DC power supply to the transmitter. The return signal lead goes to your PLC/Controller input.
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Cable Selection: Use shielded twisted-pair cable for the loop to ensure maximum protection against electromagnetic interference (EMI).
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Sensor Placement: Ensure the conductivity cell is fully submerged and that the flow direction prevents air bubbles from being trapped in the sensor head, which can cause erratic readings.
Contact our instrumentation team at Brand Chemical Supplies today to secure your CX105 Conductivity Transmitters and optimize your process control with reliable 4-20mA data.
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