CR-102S — High-Precision, Durable, Easy Integration
CR-102S — High-Precision, Durable, Easy Integration
Nov . 07, 2025
Why the CR-102S quietly became the go-to conductivity/resistivity probe
If you’ve been tracking water analytics, you’ve probably noticed a shift: plants are done with finicky lab-only gear and want rugged, inline sensors that just work. To be honest, the race is less about flashy dashboards and more about dependable signal, stable temperature compensation, and hardware that survives caustics. That’s where the CR-102S keeps popping up in my field notes—simple, tough, and built with process realities in mind.
What stands out (and why operators care)
The recipe is straightforward: PT100/PT1000/NTC 10K options for temperature compensation, an electrode body in S.S.316L or titanium alloy, and a design that resists both acidic and alkaline attack. It sounds basic—actually, that’s the point. Many customers say the CR-102S behaves predictably in CIP cycles and boiler rooms, which is rarer than it should be.
Typical specifications
| Measurement | Conductivity / Resistivity (with temp. compensation) |
| Cell constant (K) | ≈0.1 / 1.0 / 10.0 (selectable depending on range) |
| Measuring range | ≈0.05 µS/cm to 500 mS/cm (with suitable K; real-world use may vary) |
| Temperature element | PT100 / PT1000 / NTC 10K |
| Body materials | S.S.316L and Titanium alloy (anti-acid / anti-alkaline) |
| Temperature / Pressure | ≈0–80 °C; up to ≈0.6 MPa (typical process limits) |
| Ingress protection | IP68 (immersion use; installer dependent) |
Process flow, testing, and standards (the part QA asks about)
Materials are machined (316L) or formed (titanium), then passivated; titanium surfaces receive corrosion-prep finishing. The temperature element (PT100/PT1000/NTC 10K) is potted and sealed. Electrodes are calibrated in KCl standard solutions at 25 °C, and compensation curves are verified. Typical tests include insulation resistance, leak/pressure checks, and thermal cycling.
Standards referenced in validation: ISO 7888 for conductivity in water, ASTM D1125 for lab/field procedures, and IEC 60746-3 for analyzers’ performance. Some projects also ask for EPA Method 120.1 alignment. Certifications such as ISO 9001 and RoHS can be supported upon request (documentation varies by shipment batch).
Service life: around 3–5 years in neutral/softened water; shorter with hot caustic or oxidizers. Regular rinsing and periodic mild acid cleaning (e.g., citric) extend stability.
Where the CR-102S gets deployed
- Ultrapure/RO polishing loops (electronics, pharma utilities)
- Boiler feed and condensate return monitoring
- CIP caustic/acid tanks in F&B plants
- Desalination and brackish water skids
- Electroplating rinse control and pickling baths
Vendor snapshot (why this model is picked over others)
| Feature | CR-102S (Watequipment) | Vendor A (Generic) | Vendor B (Generic) |
|---|---|---|---|
| Body material | 316L or Titanium | 316L only | Titanium option (premium) |
| Temp element options | PT100 / PT1000 / NTC 10K | PT100 only | PT100 / PT1000 |
| Acid/alkali resistance | Strong (per materials) | Moderate | Strong |
| Customization lead time | ≈2–3 weeks | ≈3–5 weeks | ≈4–6 weeks |
| Approx. unit cost | Mid-range | Budget | High |
Customization and integration
Common tweaks include cable length, process thread type, and cell-constant selection. Many integrators pair the CR-102S with 4–20 mA or Modbus transmitters; validation runs typically follow ISO 7888 at 25 °C with KCl references.
Two quick case notes
- Desalination pilot: titanium version maintained drift ≤±1.5% of reading over 90 days in brackish feed (internal log, ambient 18–30 °C).
- Beverage CIP: 316L probe tracked 1–3% deviation vs. lab bench during caustic recovery, improving switch-over timing and cutting chemical loss.
Origin: No.188, Fengshou Road, Chang'an district, Shijiazhuang City, Hebei Province China 050041
References
- ISO 7888: Water quality — Determination of electrical conductivity.
- ASTM D1125: Standard Test Methods for Electrical Conductivity and Resistivity of Water.
- IEC 60746-3: Expression of performance of electrolytic conductivity measuring equipment.
- US EPA Method 120.1: Conductance (Specific Conductance, µmhos/cm).
Related Products
Related News
2026-11-03 04:36:32
Rotameter FAQ for small-flow measurement in water treatmentLearn how a Rotameter measures fluid flow, where it fits in water-treatment and RO systems, and which accuracy, pressure, and float details to review before ordering.
2026-10-29 03:32:11
Choosing WS 9100: Application Fit and Specification ChecksEvaluate whether the WS 9100 fits your environmental monitoring project. Review power supply options, temperature-controlled storage, sampling method compatibility, and key specifications before purchasing.
2026-10-23 04:19:53
PH/ORP-6850 Controller FAQ: Specifications, Configuration Options and Ordering QuestionsPH/ORP-6850 FAQ: pH 0–14 and ORP ±1200 mV ranges, ±0.02 pH accuracy, isolated 4–20 mA output, relay alarms, power supply options and panel installation.
2026-07-01 09:39:59
Guide to Ensuring Water Purity for drinking water tds MonitoringEnsuring Water Purity: The Ultimate Guide for Drinking Water TDS Monitoring Maintaining high water quality standards is essential for public health and industrial safety. One of the most critical metrics for assessing water purity is Total Dissolved Solids TDS, which represents the combined content of all inorganic and organic substances dissolved in water. Utilizing high-precision equipment for drinking water tds measurement allows facilities to detect contamination and ensure that filtration systems are operating at peak efficiency. In this guide, we will explore the technical aspects of TDS monitoring and how advanced transmitters provide the reliability needed for modern environmental monitoring.
2026-06-29 16:58:21
Understanding the Conversion of Electrical Conductivity to TDSUnderstanding the Conversion of Electrical Conductivity to TDS In water quality analysis, measuring the purity of a liquid often involves understanding the relationship between electrical conductivity to tds Total Dissolved Solids. While conductivity measures the ability of water to pass an electrical currentwhich is directly influenced by the concentration of ionized substancesTDS represents the total amount of mobile charged ions, including minerals, salts, or metals dissolved in a given volume of water. For professionals in environmental monitoring and water treatment, mastering this conversion is essential for maintaining system efficiency and ensuring regulatory compliance.
2026-06-27 17:38:40
Industrial Guide to Electrical Conductivity Salt Water MonitoringUnderstanding Electrical Conductivity Salt Water Monitoring for Industrial Precision In the realm of water quality analysis, measuring the electrical conductivity salt water levels is a critical process for maintaining industrial efficiency and environmental safety. Conductivity serves as a direct indicator of the concentration of dissolved ions, which is essential for industries ranging from desalination plants to chemical manufacturing. Accurate monitoring prevents equipment corrosion, ensures product purity, and supports regulatory compliance. By utilizing advanced instrumentation, operators can achieve real-time insights into salt concentrations, allowing for immediate adjustments in water treatment processes to avoid costly downtime.
2026-06-26 16:42:22
Technical Guide to Industrial ec meter circuit Design and UseUnderstanding the EC Meter Circuit: The Heart of Water Quality Analysis Electrical Conductivity EC is a fundamental parameter in environmental monitoring, aquaculture, and industrial water treatment. At the core of every reliable measurement device is a sophisticated ec meter circuit , which converts the physical conductance of a liquid into a precise digital reading. Whether you are managing a boilers deoxygenation process or monitoring nutrient levels in hydroponics, understanding how the circuit handles signal amplification and temperature compensation is key to ensuring data accuracy. This guide explores the technical intricacies of EC circuitry and how it integrates into professional water quality controllers.
2026-06-25 18:39:20
Professional Guide to drinking water testing for tds and PurityDrinking Water Testing for TDS: Ensuring Pure and Safe Water Quality Maintaining high water quality is essential for both health and industrial efficiency. When performing drinking water testing for tds , professionals seek to measure the Total Dissolved Solids TDS, which indicates the concentration of dissolved inorganic salts and organic matter in water. Whether you are managing a municipal water plant or a high-precision industrial facility, understanding the conductivity and TDS levels is the first step toward effective water treatment. In this guide, we explore the technical aspects of TDS measurement and the advanced instrumentation required for accurate monitoring.
English