ST-728 Ultra-Low Conductivity Sensor (0.02-10.0µS/cm)

Industrial-Grade Ultra-Low Conductivity Sensor.

An inline ultra-low conductivity sensor designed for pure & ultra-pure water applications that measures at a range of 0.02-10.0µS/cm!

CE Mark

 

$1,095.00

Description

The ST-728 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-728 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-728 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

Item ST-728
Part Number 53117
Conductivity Range 0.02-10.0 µS/cm
Conductivity Precision ±0.1 µS/cm or 1% of the Value
4-20mA Range for Temperature 32-212 °F (0-100 °C)
Temperature Precision ±1% of the Value
Cell Constant (K) 0.3
Sample Pressure Up to 100psi (0.7MPa)
Power Supply 22-26VDC, Power Consumption 2W
Dimension 8.46in (215mm) L, 1.32in (33.6mm) D
Installation 3/4″ NPT
Body Material 304 Stainless Steel
Weight 530g (1.16lbs)
Operational Pressure 100psi (6.9Bar)
Operational Temperature 40-104 °F (4-50 °C)
Storage Temperature 20-140 °F (-7-60 °C)
Outputs 8-Pin – Isolated 4-20mA Analog & Isolated RS-485 Digital Outputs
Wet Material Hastelloy
Rating IP67, Fully Dustproof & Waterproof
Regulation CE, RoHS Marked
Cable Length 5ft (1.5m) – Extension Cables Available

Support Documents

ST-724-ST-725-ST-728 User Manual V1.08

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

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