PS-3210A wireless conductivity sensor
The PS-3210A wireless conductivity sensor provides temperature compensation and can be calibrated over different temperature ranges. It is readily used in chemistry, biology, and environmental studies, including brackish-water testing. Overview: When measuring conductivity in aqueous solutions, the PS-3210A offers both an increased range and significantly reduced measurement error. It is well suited to studying the ionic properties of solutions, including calculating total dissolved solids (TDS), a parameter commonly used in water-quality investigations. It provides temperature compensation and can be calibrated over different temperature ranges. The new design doubles the previous upper conductivity limit to 40,000 µS/cm, making it suitable for chemistry, biology, and environmental studies, including brackish-water testing. Teacher's tip: For pure seawater samples beyond the sensor's range, dilute the salt solution to half concentration, then multiply the measured sample conductivity by 2. Conductance is the reciprocal of resistance. In use, the wireless conductivity sensor is immersed in a solution and a voltage is applied; it measures the resulting circuit current. The electrode cell is made of insulating material and contains two 300-series stainless-steel pins at a fixed spacing as sensing elements. Built-in temperature compensation also expands the effective measurement range and reduces calibration requirements.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Conductivity - Measurement range | 0 to 40,000 µS/cm (0 to 28,000 mg/L TDS) |
| Conductivity - Resolution | 0.1 µS/cm |
| Conductivity - Accuracy (200 - 40,000µS/cm) | ±5% of the measured value |
| Conductivity - Accuracy (below 200µS/cm) [Below 200µS/cm] | ±25 % |
| Total dissolved solids - Measurement range | 0 to 28,000 ppm |
| Total dissolved solids - Resolution | 0.1 ppm |
| Total dissolved solids - Accuracy [100 - 30,000 ppm] | (100 - 30,000 ppm): 5% of the measured value |
| Response Time [Time to reach 95% of the final measured value] | ≤5 seconds to reach 95% of the final measured value |
| Probe ambient-temperature tolerance | 0–80°C |
| Temperature Compensation | 0–35°C |
| Temperature Measurement Accuracy | ±0.5°C |
| Waterproof performance [Can operate continuously for 30 minutes at a water depth of 1 meter] | IPX7 (continuous operation for 30 minutes at a water depth of 1 meter) |
| Connection Method | Bluetooth 5.2 |
| Data Logging Function | Supported |
| Battery Type | Button cell |
| Stored-data-point memory (logging mode) ¹ [Refers to the Minimum Number of Data Points When All Measurement Functions Are Enabled; Actual Results Depend on the Enabled Measurement Functions.] | >35,000 |
| Battery runtime - Connected state (data-acquisition mode) ² | >195 hours (2-3 years under normal classroom use) |
| Battery runtime - Logging state (data-logging mode) ³ [Refers to Recording Data Until the Battery Is Exhausted; Actual Results Depend on the Sampling Rate, Activated Measurement Functions, and Battery Condition.] | >3 days |
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Key Features
Datasheet
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