Final configuration is confirmed in the quotation.
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.
Start with the information you have. Exact model, interface and certificates are confirmed in writing before order.
Image details
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.
Related solution: Water Monitoring
Where the hardware sits in the monitoring path
A planning view, not a fixed bundle. Signal type, protocol, power, network and the customer endpoint are confirmed before quotation.
Customer system
SCADA, BMS or customer-owned platform
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
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How the model is selected
The written quotation ties the site requirement to one reviewed hardware configuration.
Site requirement
Application, medium, mounting and environment
Hardware configuration
Signal, protocol, power and enclosure
Quote confirmation
Model, quantity, certificates and delivery
Remote integration context
Representative site context. Sensors, interfaces, enclosure, power and mounting are confirmed against the actual project before quotation.
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.
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Model-selection reference
Water & Utilities Hardware Catalog
Use this audited section to compare available hardware configurations. The representative website image is not an exact model photograph; the ordered configuration is confirmed in the quotation.
- Catalog section
- Water-quality electrodes and probes
- SG-coded options
- 28
- PDF pages
- 4
Continue product selection
Compare adjacent hardware families for the same monitoring path. The final combination is checked against the project I/O, protocol, power and enclosure requirements.
How to choose
- Select Type A, B, C or D from the water chemistry, wetted material, process pressure, temperature, installation connection and required EC range.
- Choose the documented range before release. Type A/B/C cover 0-2000 to 0-20000 µS/cm; Type D also provides the reviewed 0-50 and 0-500 µS/cm low-range options.
- Use the standard simultaneous 4-20 mA and RS485 Modbus RTU outputs, or deliberately select the separate Type D two-wire 4-20 mA configuration.
- Place the measurement opening where it remains wetted and bubbles do not collect. Confirm immersion depth or NPT3/4 process geometry.
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Compatible with
- PLC, RTU or analyzer inputs accepting 4-20 mA and RS485 Modbus RTU
- Immersion brackets or NPT3/4 process connections selected for the probe family
- Water-quality controllers and telemetry gateways using the reviewed register map
- Freshwater, wastewater or process installations whose material, pressure and temperature limits match the selected type
Typical package
- Type A, B, C or D conductivity probe selected for medium, range, pressure and temperature
- Reviewed 5 m default cable or a project-specific cable length
- Optional 1 m immersion bracket or matching NPT3/4 process hardware
- Compatible PLC, RTU, analyzer or gateway with analog and/or RS485 input
- Cleaning, calibration and acceptance-reading plan for the process
Applications
This probe family measures online electrical conductivity in water and compatible process media. Select Type A, B, C or D from the wetted material, pressure, temperature, connection and range. The standard three- or four-wire configurations provide 4-20 mA and RS485 Modbus RTU simultaneously; the Type D two-wire 4-20 mA option is a separate configuration. Conductivity is the direct measured property. A matching manual documents calculated TDS and salinity data on applicable configurations, but availability, units, conversion and temperature basis must be confirmed before those derived values are used.
- 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
What to include in your quote request
- Water or process medium, expected normal / upset conductivity and units
- Required Type A / B / C / D material, range, pressure and temperature
- Immersion depth or NPT3/4 process connection, flow and bubble risk
- Simultaneous 4-20 mA / RS485 or Type D two-wire output, receiving PLC / RTU / analyzer and supply
- Cable length, bracket, cleaning access, reference solution or comparison method, quantity and project stage
Related selection guides
Related resources
Frequently asked questions
How do I choose Type A, B, C or D?
Start with water chemistry, wetted-material compatibility, process pressure, temperature, connection and range. Type A is ABS/graphite to 0.8 MPa, Types B and C are nylon-fibre constructions to 1.0 MPa, and Type D uses 316L/PEEK for the reviewed higher-temperature and 2.0 MPa service.
Are 4-20 mA and RS485 Modbus RTU available at the same time?
Yes on the reviewed standard three- or four-wire configurations. Type D also has a separate two-wire 4-20 mA option with a 22-28 VDC supply requirement, so the wiring version is fixed in the quotation.
Which conductivity ranges are supported?
Types A, B and C support 0-2000, 0-5000, 0-10000 or 0-20000 µS/cm, with reviewed custom ranges on Type C. Type D supports 0-50, 0-500, 0-10000 or 0-20000 µS/cm. Accuracy is ±1% FS and resolution is 0.01 mS/cm.
Does this sensor provide TDS or salinity values?
The direct measurement is electrical conductivity. A matching manual documents calculated TDS and salinity data on applicable configurations, but the ordered firmware/register set, units, conversion, temperature basis and comparison method must be confirmed before those derived values are used.
What installation and maintenance details should be provided?
Provide immersion or pipe geometry, NPT3/4 connection needs, pressure, temperature, cable length, flow, bubble risk, likely deposits and cleaning access. Include the calibration or comparison method and the receiving PLC, RTU or analyzer.
What should I provide when requesting a quote for the Water Conductivity (EC) Sensor?
Water or process medium, expected normal / upset conductivity and units; Required Type A / B / C / D material, range, pressure and temperature; Immersion depth or NPT3/4 process connection, flow and bubble risk; Simultaneous 4-20 mA / RS485 or Type D two-wire output, receiving PLC / RTU / analyzer and supply
Where can I compare available model options?
Open the Water & Utilities Hardware Catalog linked on this page. It lists audited SG-coded selections; the ordered configuration is confirmed in the quotation.
Will it work with my existing system?
Compatibility is reviewed against your field signals, protocols and upstream platform. Typical pairings include PLC, RTU or analyzer inputs accepting 4-20 mA and RS485 Modbus RTU, Immersion brackets or NPT3/4 process connections selected for the probe family, Water-quality controllers and telemetry gateways using the reviewed register map.