An online potassium ion sensor price depends on range, housing configuration, output option, cable, mounting, calibration standards, spares, documentation and delivery scope. YEXsensor lists YEX-S2-KA-A at 0–100.00 mg/L with 0.01 mg/L resolution and YEX-S2-KA-S at 0–1000.0 mg/L with 0.1 mg/L resolution, so a budget request must identify the actual potassium concentration profile.

Why Buyers Search for a online potassium ion sensor price

Buyers search for price when planning nutrient-water, irrigation, wastewater or process monitoring and want continuous data instead of laboratory-only snapshots. Their risk is comparing a low-range digital probe with a high-range or analog package, or overlooking the effect of ionic matrix, calibration materials and maintenance on lifecycle cost.

The first selection task is therefore to write the decision the reading must support, the acceptable uncertainty, the required response, available maintenance resources and the reference method. This converts a broad product search into a reviewable engineering inquiry.

How the YEXsensor YEX-S2-KA-A / YEX-S2-KA-S Solution Addresses the Project

Both configurations state accuracy of ±10% of reading or ±1 mg/L, temperature accuracy of ±0.5°C and T90 below 60 seconds. They use two-point calibration, Pt1000 compensation, RS485 Modbus RTU with optional 4–20 mA, 12–24 VDC and 0.2 W at 12 V. Operating conditions are 0–40°C, pressure below 0.1 MPa and pH 4–10.

Published values are configuration boundaries, not permission to ignore the sample matrix. Ask YEXsensor to confirm the exact ordered version, supplied accessories, protocol revision and application limits on the quotation or attached datasheet.

Technical Parameters for Selection and Procurement

What the Parameters Mean in Engineering Practice

The selected range drives suitability and can influence price. A nutrient solution near 100 mg/L needs peak and dosing-event data before the low range is approved.

Accuracy should be interpreted at the working value and compared with laboratory uncertainty and the size of the process adjustment.

Optional 4–20 mA must be stated explicitly. A quotation that includes only standard Modbus is not equivalent to an analog-ready package.

Ion-selective potassium response is matrix-dependent. Provide sodium, ammonium and other major-ion information where they may influence validation.

How to Turn Specifications into a Purchase Decision

A product table is not a complete measurement-point specification. Engineering should translate every value into a design condition, acceptance check and operating responsibility. Normal operation, start-up, cleaning, upset and seasonal conditions may differ. A sensor chosen only from an average can be out of range when the event that matters occurs.

Separate probe scope from system scope. A functioning point may need power, surge protection, cable, waterproof junctions, bracket or flow cell, controller, gateway, telemetry, calibration materials, spares and documents. Ask suppliers to identify inclusions and exclusions line by line so procurement compares equivalent systems.

Define how the value will be used. Operator trending, alarm generation, automatic dosing and regulatory reporting have different validation needs. Automatic control requires communication-timeout behavior, invalid-value handling, rate limits, interlocks and manual override. A disconnected, fouled or out-of-range sensor must not be interpreted as a valid demand.

Plan acceptance around the method the site trusts. Online and laboratory methods may measure different properties or sample different moments. Record location, time, temperature, maintenance condition and process state during comparisons. A practical acceptance plan defines expected agreement and investigation steps rather than promising identical numbers from unlike methods.

Before purchase, assign ownership for calibration, cleaning, alarm review, spare parts and data-quality records. Confirm who will investigate a failed comparison, who can change a setpoint and how long replacement or technical support may take. These responsibilities influence the practical value and lifecycle cost of the measurement as much as the probe specification.

online potassium ion sensor price: Application Fit and Limitations

Request the exact A or S configuration, RS485 or optional 4–20 mA, cable, housing, mounting, calibration standards, spare strategy, controller, documents, quantity, freight and commissioning support. Provide minimum, normal, maximum and dosing-event potassium values plus major ions, pH, temperature and pressure.

A suitable installation stays inside the stated range and environmental envelope, represents the process and remains accessible. An unsuitable installation asks the sensor to report a different analyte, exposes it to unreviewed chemistry or places it where flow, deposits or local dosing make the reading unrepresentative.

Typical Application Scenarios

Nutrient solution monitoring

Use continuous potassium trend to support dosing review, while retaining complete nutrient analysis for formulation decisions.

Irrigation return water

Track accumulation or loss across recirculation, with site correlation under changing fertilizer composition.

Industrial wastewater

Disclose ionic strength, pH and interfering ions before relying on the reading for an alarm or discharge decision.

Pilot process

Include raw data, calibration records and paired samples so the project can quantify whether online monitoring delivers sufficient decision value.

In every application, document the monitoring location, nearby dosing or return points, normal hydraulic condition and service access. If the water is spatially variable, use multiple points or a documented survey before assuming one convenient location represents the complete system.

Installation and Integration Notes

Use a representative well-mixed point away from direct fertilizer or chemical injection. Keep pressure below 0.1 MPa, provide removal access and protect the cable. Configure Modbus or analog scaling from the confirmed range, then verify with standards and representative samples before enabling automatic dosing decisions.

For digital integration, confirm power, polarity, A/B convention, address, baud rate, parity, stop bits and register map before energizing the loop. Use appropriate shielding, topology and termination. Store final settings with commissioning records so future replacement does not require reverse engineering.

Commissioning should include visual inspection, wiring checks, stable-reading confirmation, calibration or verification, reference comparison, alarm simulation and communication-loss testing. Train operators to distinguish a process excursion from fouling, bubbles, damaged cable, empty flow conditions or expired calibration.

How to Request a Comparable Quotation

Send one RFQ sheet listing application, water source, measurand and units, minimum/normal/maximum values, temperature, pressure, pH and major ions where relevant, fouling, mounting, cable, output, controller, power, quantity and destination. Add required certificates, drawings, inspection records, packing and delivery terms.

Ask the offer to identify model, exact range, output, wetted materials, cable, accessories, protocol, warranty, lead time and exclusions. A line-item quotation helps engineering verify suitability and prevents a low probe price from hiding necessary integration or maintenance scope.

Frequently Asked Questions About online potassium ion sensor price

Which configuration should a buyer price?

Price YEX-S2-KA-A for 0–100.00 mg/L or YEX-S2-KA-S for 0–1000.0 mg/L based on minimum, normal and peak samples. Do not choose only from an average.

Is optional 4–20 mA included automatically?

No. The product page lists 4–20 mA as optional and RS485 Modbus RTU as the digital output. State the required interface explicitly and ask the quotation to confirm it.

Can the sensor alone control fertilizer dosing?

It can provide a potassium trend, but safe dosing also needs validated setpoints, mixing delay, flow or volume information, interlocks and broader nutrient chemistry. Use a PLC with fault handling and confirmation checks.

What information makes quotations comparable?

Use the same range, output, cable, mounting, standards, spares, documents, quantity and delivery terms for every supplier. Include the water matrix so a cheaper but unsuitable configuration is not selected.

Does the online potassium ion sensor price solution connect to a PLC or SCADA system?

Yes. The stated interface is RS485 Modbus RTU with optional 4–20 mA. Confirm device address, baud rate, parity, register map, cable distance and network topology before ordering. Include the controller brand and required analog option, if any, in the RFQ.

Which operating conditions must be confirmed?

Confirm 0–40°C, pressure below 0.1 MPa, pH 4–10 and a representative ionic matrix. Also disclose solids, fouling, cleaners, interfering ions and upset conditions. A quotation should state the configured materials and limits rather than relying on a generic model name.

How should calibration be planned?

Use two-point calibration with potassium standards that bracket the working range. Define standards, stabilization time, as-found and as-left records, paired samples and the person responsible. Calibration frequency should follow drift and fouling history rather than an unsupported universal interval.

Can the online sensor replace laboratory testing?

It provides continuous potassium-ion trend, not a complete nutrient analysis. Formulation and compliance decisions may still require laboratory chemistry. Use the online value for continuous trend and operational response, while retaining laboratory or reference checks required by regulation, contracts and the site quality plan.

What information should an RFQ contain?

Provide application, measurand, units, minimum/normal/maximum values, temperature, pressure, pH and matrix where relevant, installation, cable, output, controller, quantity, documents and destination. Request the exact configured model and included accessories.

Summary

Selecting a online potassium ion sensor price requires a match between the real process, official product limits and the decision the data will support. The YEXsensor YEX-S2-KA-A / YEX-S2-KA-S specifications provide a defined starting point, while installation, calibration, integration and lifecycle planning determine whether the project produces dependable information.

For a useful quotation, send operating range, matrix, mounting, cable, output, controller, quantity, required documents and destination. YEXsensor can then confirm the configured model and quote a complete measurement point instead of an ambiguous probe-only scope.