Water Conductivity (EC) Sensor
Online EC probe family with selectable materials and ranges, ±1% FS accuracy, and simultaneous 4-20 mA plus RS485 Modbus RTU output.
Category: Water & Wastewater Instrumentation
Representative image
Representative online conductivity-probe visual interpreted from a reviewed exact-model reference and independently de-identified. It is not an exact product photograph; Type A/B/C/D construction, range, pressure, temperature, process connection, cable, output, markings and certificates are confirmed in the quotation.
Specifications
| Measured property | Online electrical conductivity (EC) |
|---|---|
| Type A / B ranges | 0–2000 / 5000 / 10000 / 20000 µS/cm |
| Type C ranges | 0–2000 / 5000 / 10000 / 20000 µS/cm; reviewed custom ranges available |
| Type D ranges | 0–50 / 500 / 10000 / 20000 µS/cm |
| Accuracy / resolution | ±1% FS; 0.01 mS/cm |
| Outputs | 4-20 mA and RS485 Modbus RTU simultaneously; Type D two-wire 4-20 mA optional |
| Supply | 7–30 VDC; Type D two-wire 4-20 mA configuration 22–28 VDC |
| Response / drift | 1 s response; ≤0.3% FS per 24 h drift |
| Power | <0.2 W |
| Temperature compensation | 0–60 °C on Types A/B/C; Type D configuration up to 0–100 °C |
| Materials | Type A ABS/graphite; Type B nylon fibre/316; Type C nylon fibre/graphite; Type D 316L/PEEK |
| Pressure | Type A 0.8 MPa; Types B/C 1.0 MPa; Type D 2.0 MPa |
| Installation | Immersion or NPT3/4 process connection, depending on type |
| Environment / cable | Probe IP68; 5 m reviewed default cable |
Choose the probe type from the medium, pressure and temperature
The four mechanical families do not share the same wetted materials or service limits.
- Type A uses an ABS body with graphite electrodes and is reviewed to 0.8 MPa. Type B uses nylon fibre with 316 stainless steel; Type C uses nylon fibre with graphite. Types B and C are reviewed to 1.0 MPa.
- Type D uses 316L and PEEK wetted materials, supports the reviewed high-temperature configuration and is reviewed to 2.0 MPa. Confirm whether the installation uses the Type D two-wire 4-20 mA option or the standard simultaneous-output configuration.
- Select a documented range. Types A/B/C support 0-2000, 0-5000, 0-10000 or 0-20000 µS/cm; Type C also supports reviewed custom ranges. Type D supports 0-50, 0-500, 0-10000 or 0-20000 µS/cm.
- Install the conductivity cell where it remains wetted and where bubbles do not collect across the measurement opening. Confirm immersion depth or NPT3/4 process geometry before release.
- The probe is not maintenance-free: deposits, oil, biofilm and scale change the cell response. Define cleaning access, inspection frequency and the reference solution or comparison method.
- IP68 applies to the probe. Cable entries, junctions, controllers and enclosures require their own environmental protection.
- A matching manual documents calculated TDS and salinity data, but the direct measurement is EC. Confirm the ordered firmware/register set, conversion, units, temperature basis and acceptance method before using either derived value.
Typical applications
- Freshwater, aquaculture and surface-water conductivity trend monitoring
- Wastewater and process-water monitoring after wetted-material and fouling review
- Pipe or tank installations using simultaneous analog and Modbus signals
- Higher-temperature or higher-pressure service using the selected Type D configuration
Inquiries: contact@sungeneiot.com · sungeneiot.com
Specifications are for reference and may be updated; confirm the final spec with SunGene before ordering.