Pyxis ST-725 Ultra-Low Conductivity Sensor (0.02-200.0µS/cm)

The ST-725 is an industrial-grade, inline ultra-low conductivity sensor designed for pure & ultra-pure water applications. It can be used for ultra-low conductivity measurement of pure water, ultra-pure water and deionized water including:

• Boiler Feedwater and Condensate
• RO and EDI/EDR Process Water
• Ion Exchange
• Distillation
• Semi-Conductor Cleaning
• Degas Conductivity and Other Process Applications

These are ‘smart sensors’ with a built-in transmitter supporting digital & analog signal outputs, and are designed to simplify field installation, calibration and operation. The sensors offer simple 3/4” MNPT threaded installation and are constructed with a Hastelloy electrode tip & stainless-steel body. The ST-725 sensor can be wirelessly calibrated with uPyxis® app when used with the MA-CR Bluetooth® adapter. The sensors both offer (2) 4–20mA Analog outputs, one for conductivity and one for temperature, as well as RS-485 Modbus output for a broad array of installations that desire to connect the smart sensor directly to any receiving controller, PLC or DCS network. The ST-725 has a built-in RTD for the automatic compensation of sample temperature.

Features

• Easy Installation into 3/4″ FNPT Standard Pipe Tee
• The Latest Short Pulse Type Detection Method Technology
• Built-In Temperature Sensor with Automatic Compensation
• Front-End Fully Digital Detection Technology
• Accurate & Stable Measurement with Ultra-Low Drift
• Built-In Transmitter without Pre-Amplifier or Meter Head
• (2) 4-20mA Isolated Analog & RS-485 Modbus Digital Outputs
• Stainless Steel Housing Suitable for Harsh Environments
• Pollution-Resistant & Anti-Interference Design
• Specially Designed Electrode Greatly Improves the Long-Term Stability of the Sensor
• Minimal Maintenance Required
• Ultra-Low Detection 0.02µS/cm (50MΩ Resistivity)

Specifications

Downloads

ST-724 + ST-725 + ST-728 Ultra-Low Conductivity Sensors Data Sheet

ST-724-ST-725-ST-728 User Manual