Key Features
- 4-cell electrode measuring conductivity (ec), total dissolved solids (TDS), or salinity depending on scaling with datalogger or remote telemetry unit (RTU)
- Secondary 0-50°C temperature sensor
- 2-wire, 4-20 mA analog outputs compatible with many dataloggers or RTUs.
- Narrow diameter (0.75 inches or 1.9 cm) for groundwater monitoring applications
- Isolated to prevent ground loops
- Holds calibration for months at a time
All parts, including the cable, are easily replaceable without tools using pHionics patented pHiConn™ System, saving frustration and money.
In addition, isolation, differential amplification, and shielding ensure a strong signal with high signal-noise ratios, all while remaining low-power.
These features make our conductivity sensor well-suited for applications such as groundwater monitoring, wastewater treatment, aquaculture, pollution monitoring, etc.
Full Features List
- 4-cell electrode to measure conductivity, TDS, or salinity depending on scaling
- Secondary 0-50°C temperature sensor
- Chemical-resistant Delrin®, PVDF, and 316 Stainless Steel housing (Titanium optional)
- Metal housing acts as the solution ground, removing background noise caused by stray electrical currents
- Narrow diameter (0.75 inches or 1.9 cm)
- Electrode guard to reduce debris or algae buildup and protect from damage
- Fully submersible up to 70 psi
- Shielded, Kevlar®-reinforced, water-blocked polyurethane cable
- 4-20 mA signal capable of transmission up to 3 miles (with proper wire gauge)
- Automatic Temperature Compensation (2% per degree Celsius)
- Reversible Input Protection and Operation
- Isolated to prevent ground loops
- Signal conditioning to remove background noise
Low Maintenance
- Reduce the number of site visits with the STs Series Conductivity sensor. A 4-cell electrode holds calibration for long periods of time while also preventing errors due to polarization.
- In addition, the guard protects the sensing elements from algae and debris build-up, further reducing the need for calibration.
Mounting Options
Due to their small diameter and light-weight design, pHionics STs Series™ sensors may be set up in a number of ways. They may be suspended by the Kevlar-reinforced cable down a pipe, as shown to the right, or mounted at the end of a pipe using the pHionics cmp-k compression fitting, as shown to the left and below.
