The measurement range of an analyzer is determined by the hardware components and limitations such as the range of insulation, measurement voltage and frequency it operates at. In each range, different combinations of voltage and frequency are required for optimal measurement.
Simplified: at an ohmic resistance lower than 5 ohms, transition resistances in the electronics of the analyzer affect the accuracy. At a higher resistance than 1Mohm, insulation plays a vital role in the measurement accuracy. That means there are limitations for the input range of the hardware. In table 1, an overview is given of the different analyzers and their input ranges.
Table 1. Input ranges of Yokogawa analyzers
For detailed information please check our Technical Information: Contacting Conductivity sensor selection guide.
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2-Wire Transmitter/Analyzer FLXA202
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2-Wire Transmitter/Analyzer FLXA21
The FLEXA™ series analyzers are used for continuous on-line measurements in industrial installations. With an option for single or dual sensor measurement, they are the most flexible two-wire analyzer available.
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Conductivity Sensor SC4AJ
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Contacting Conductivity Sensors SC42/SC4A(J)
The measurement of specific conductivity in aqueous solutions is becoming increasingly important for the determination of impurities in water. Yokogawa has designed a full range of precision sensors and instruments to cope with these measurements, even under extreme conditions.
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Digital SMART SENCOM™ Adapter, SA11
Reusable SMART adapter, requiring only the analog sensor to be disposed of when it reaches the end of its lifetime. With the SENCOM 4.0 platform, Yokogawa delivers reduced costs and waste while contributing to its long-term business goals of a sustainable future for all.
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High Pressure/ High Temperature Conductivity Sensor SC42/SX42
These conductivity cells have extremely high temperature and pressure ratings: the threaded types can handle 16 bar at 200°C and the flanged types can handle 40 bar at 250°C.
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Multi Channel 4-Wire Analyzer FLXA402
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Pure Water (Low) Conductivity sensors SC4A(J)/SC42
Intended for the low conductivity applications found in the semi-conductor, power, water and pharmaceutical industries, these sensors are in a convenient compact style.
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UM33A-S SENCOM HMI Type
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