HI6000-3 Conductivity Module HI6000-3 Conductivity module is designed to be used with the HI6000 Multiparameter Modular System. • Multiparameter measurement flexibility • Plug-and-play design • Effortless installation • Application-specific solution without heavy customization EC USP Reading Mode The HI6000-3 module also supports the measurement of high purity water used in the pharmaceutical industry. With the USP Reading mode, the application includes meter veri¯cation, cell validation and the HI6000-3 module is programmed for the three stages of the USP <645> bulk water analysis. The meter guides you through the measurement steps and noti¯es you when a measurement is out of speci¯cation. Reports can be generated and saved. The HI6000 Multiparameter Modular Sytem used in conjunction with HI6000-3 EC module and EC probes can be used for conductivity measurements required to prepare water for injection (WFI) according to USP <645>. The HI6000 gives clear instructions on how to perform each stage and automatically check that the temperature, conductivity and stability are within USP limits. Comprehensive results are shown on a single screen at the end of the test. Up to 200 reports can be saved for future recall. Recommended Probe Hanna recommends the HI7631233 platinum four-ring probe for use with this module. Recommended for a wide range of industrial process water applications, HI7631233 provides stable measurements over a wide measurement range and does not require frequent calibrations. An integral temperature sensor measures the process temperature and adjusts the measured conductivity to a reference temperature by applying specialized compensation algorithms: · Linear: appropriate when it is assumed condutivity samples greater than 1 mS/cm with known coefficients. · Standard: appropriate for high-purity water measurements and documented in ASTM Standard D5391-14. This setting should be used for >1Mohm.cm resistivity measurements. · Natural: appropriate for natural ground, well, or surface water (or water with similar composition) in accordance with ISO7888 standard. The result is reliable electrolytic conductivity. The electrolytic conductivity (EC) reading from the HI7631233 sensor can be used to calculate Total Dissolved Solids (TDS), Resistivity, and Salinity (PSU, ppt, or %). · TDS is a calculated value based on the conductivity of the solution (TDS = factor × EC25). A TDS factor is a conversion factor used to change an EC measurement to a ppm (or ppt) measurement. · Salinity (PSU) relates the ratio of electrical conductivity of a normal seawater sample at 15 °C and 1 atmosphere to a potassium chloride solution (KCl) with a mass of 32.4356 g/ Kg water at the same temperature and pressure. Under these conditions the ratio is equal to 1 and S=35. The practical salinity scale may be applied to values 0 through 42.00 psu at temperatures between 0 to 35 °C. · Salinity (ppt) measurements are based on the 0.00 to 80.00 g/L Natural Seawater Scale from 10 to 31 °C. It determines the salinity based upon a conductivity ratio of sample to standard seawater at 15 °C and an approximate salinity value of 35 in seawater. · Salinity (%) in this scale 100% salinity is equivalent to roughly 10% solids. 7 Multiparameter 7.16 | www.hannainst.com benchtop
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