With the DSC-301B smart conductivity digital sensor, you can examine the conductivity of water online. This is vital for keeping the water clean. It has a typical industrial design and very accurate detecting parts, so it can be used to keep an eye on things all the time, including for safety in the workplace, the environment, and cities. At the corporate level, this is a typical and not too expensive approach to test conductivity. It provides reliable and accurate conductivity data that may be used to adjust procedures and keep an eye on the quality of the water.
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Parameters
| Item | Specification |
|---|---|
| Measuring Range | 1~5000μS/cm |
| Resolution | 0.01μS/cm |
| Calibration Method | Two-point / Three-point Calibration |
| Operating Temperature | 0-50℃ |
| Working Pressure | ＜0.2MPa |
| Power Supply | 24VDC（Compatible with 9-24VDC wide voltage） |
| Signal Output | RS485(Modbus/RTU) + 4-20mA |
| Installation Interface | 3/4″ G Thread |
| Cable Length | 5m standard, other lengths customizable |
| Communication Protocol | Modbus RTU |
| Default Communication Parameters | 9600 N 8 1 |
| Device Address Range | 1-255 (Modifiable via broadcast address 255) |
| Supported Function Codes | 0x03 (Read data), 0x06 (Modify parameters) |
| Wiring Standard | Red:V+, Black:V-, White:A, Blue:B |
Why choose DSC-301B digital sensor?
- Flexible calibration mode lets you choose between two-point or three-point calibration, which is already done at the factory. You may choose which one you need based on how accurate you need it to be on-site, and it can be used in a variety of monitoring situations.
- Adaptable to industrial-grade working conditions: can handle tough working conditions in conventional water treatment; runs smoothly; can handle working temperatures from 0 to 50 °C and working pressures of 0.2 MPa.
- The 3/4″ G universal threaded interface is standard, so installation is quick and easy. It connects directly to a wide range of water treatment pipes and equipment, so you don’t need any adapter tools.
- The RS485 (Modbus/RTU) plus 4-20m dual signal output works well.a dual signal that sends data without any dead spots and works with both PLC/DCS automation systems and regular digital display devices.
Featured Applications
- Industrial water treatment: conductivity testing for conventional process water, circulating water, and wastewater pretreatment to guide water quality regulation
- Environmental monitoring: online monitoring of conductivity of natural water bodies such as rivers, lakes, and landscape water to reflect the status of water pollution
- Food and beverage: conductivity control of drinking water and water used in food production processes to meet production water quality standards
- Commercial water purification: Real time monitoring of conductivity in direct drinking water systems in shopping malls, hospitals, and hotels to ensure water supply quality
Installation and wiring
Installation requirements
- 3/4 “G thread interface directly connects to pipelines/equipment, firmly installed to prevent loosening and leakage
- The probe is completely submerged in the water being measured, and it is recommended to install it in areas with gentle water flow, avoiding areas with dense bubbles and strong electromagnetic interference sources
- The probe should be at least 2cm away from the bottom of the container/pipeline to avoid impurities from adhering and affecting the detection. The wiring and power lines should be separated to reduce signal interference
- It is recommended to install aquaculture scenes in the middle and lower layers of water bodies to monitor the true dissolved oxygen status and avoid surface water interference
Electrical wiring (four wire system, color coded)
| Wire Color | Definition | Description |
|---|---|---|
| Red | V+ | 24VDC Power Positive |
| Black | V- | 24VDC Power Negative/GND |
| White | A | RS485A Signal Terminal |
| Blue | B | RS485B Signal Terminal |
| Extension Wire | 4-20mA | 4-20mA Analog Output |
After the wiring is completed, it is necessary to carefully check to confirm that there is no reverse or virtual connection, in order to avoid damaging the sensor after power on; Keep the wiring connections dry to prevent moisture.
Maintenance and Care
Calibration Specification
- Support two-point/three-point calibration, pre-calibrated at the factory, no frequent calibration required unless the measurement error exceeds the range
- Rinse the probe with distilled water and dry the surface with filter paper before calibration; immerse the probe in standard conductivity buffer solution of corresponding concentration
- Stir the buffer solution gently to ensure uniformity, send the calibration command via Modbus/RTU after the measured value is completely stable (about 3 minutes)
- Rinse the probe with distilled water again after calibration, dry it and put it into use to ensure the calibration accuracy
Routine Maintenance
- Wipe the attachments on the probe surface with a soft damp cloth regularly (recommended every 30 days), and strictly prohibit scratching the stainless steel detection surface with hard objects
- For probe scaling, clean it with detergent or 0.5g/100ml dilute hydrochloric acid/nitric acid, then rinse it repeatedly with distilled water to avoid residual reagent impact
- Regularly check the tightness of the cable and connector, prevent water inflow and corrosion; replace the special cable in time if the cable is damaged, and do not splice it by yourself
- For long-term idle storage, take out the probe, clean it with distilled water, dry it and store it in a cool and dry place, and recheck the calibration accuracy before reuse
Technical Support
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The DSC-301B conductivity sensor is ideal for water quality monitoring due to its two/three point calibration and 0.01 μ S/cm precision. Reduce on-site costs by simplifying system integration, installation, and troubleshooting. We offer professional and reliable water conductivity monitoring sensing systems with full scene adaption and high stability for municipal tap water management, industrial process water monitoring, environmental water quality testing, and commercial water purification guarantee. DSC-301B and standardized sensors measure water quality!
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