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YOKOGAWA ISC202G 2-Wire Inductive Conductivity Analyzer |
YOKOGAWA ISC202G 2-Wire Inductive Conductivity Analyzer
The ISC202 inductive conductivity analyzer is a user programmable instrument for conductivity measurements in medium to highly conductive process liquids, using inductive measuring principles. It is used in combination with the Yokogawa ISC40 inductive conductivity sensor for concentration monitoring applications in the chemical industry and for various other conductivity applications in the food, pharmaceutical, plating & metal finishing, and paper & pulp industries.
The ISC202 features user-selectable process dedicated temperature compensation for various (strong) acids and alkalis. The process linearised output function and the “%”-concentration displays contribute to a highly functional inductive conductivity based concentration analyzer.
The ISC202 is housed in a robust IP65 field mountable case. The mA output, digital communication; HART®, Foundation Fieldbus H1 and Profibus PA, and a clear LCD make the ISC202 a complete industrial analyzer.
Features
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Process optimised temperature compensation on fit the instrument in any application. |
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Extermely wide measuring range (> 6 decades) while mainteining a high resolution and accuracy using only one sensor type : 0 to 1999 mS/cm. |
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Free programmable setting of the output range, including a 21-step table output to linearise the output function e.g. to % by weight. |
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Programmable % by weight display indication. |
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Proven simple 3-level operation system using YES/NO prompts, where each level can separately be protected from unwanted access by a 3-digit passcode. |
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Proven simple 3-lebel operation system using YES/NO prompts where each level can separately by protected from unwanted access by a 3-digit passcode. |
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Passive 2-wire system, 4 to 20 mA for easy installation at low costs and safe opreation at 24 V DC. |
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HART®, PROFIBUS-PA, FOUNDATION Fieldbus H1 communications. |
Specifications
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Input specifications |
Compatible with ISC40 inductive conductivity sensor. |
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Input range |
Conductivity: 0 to 1999 mS/cm at 25℃ reference temperature
Temperature: -20 to 140℃ |
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Transmission signal |
Isolated output of 4 to 20 mA DC. Burn up (21 mA) or Burn down (3.6 mA when HART or distributor comm. is non-used, 3.9 mA when HART or distributor comm. is used) or pulse of 21 mA to signal failure. |
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Transmission range (Conductivity) |
Minimum span: 100 μS/cm.
Maximum span: 1999 mS/cm.
Setting value at 4 mA output: ≤90 % of setting value at 20 mA output |
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Temperature compesation |
Automatic: -20 to 140℃
NaCl according to IEC 60746-3 tables.
Two T.C. setting possible between 0.00 to 3.50 %/℃
Matrix: user selectable/configurable.
Reference temperature adjustable between -20 to 140℃ |
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Communications |
HART®, PROFIBUS-PA, FOUNCATION Fieldbus H1 |
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Environment |
Ambient temperature: -10 to 55℃.
Storage temperature: -30 to 70℃.
Relative humidity: 10 to 90 % RH.(Non-condensing)
Weather resistant: IP65, NEMA4X, Type 3S |
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Power supply |
ISC202G: 17 to 40 V DC
ISC202S: 17 to 31.5 V DC |
Performance
Output span is 0 to 100 μS/cm or more (Conductivity)
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Linearity |
±(0.4 % FS + 0.3 μS/cm) |
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Repeatability |
±(0.4 % FS + 0.3 μS/cm) |
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Temperature |
±0.3℃ |
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Step response |
≤8 seconds for 90 % (for 2 decade step) |
Applications
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Applications where severe electrode fouling prevents the use of contacting electrodes. |
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All ranges except the (ultra) pure water applications. |
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Chemical processes except concentrated sulfuric, nitric, and fluoric acids. |
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Slurry applications where conventional systems suffer from plugging or erosion. |
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Applications where the 6-decimal rangeability is necessary for accurate process control. | |
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