EL3020 analyzer for SO2 & NO measurement
We are using easyline analyzer EL3020 for SO2 & NO measurement with analyzer range 0-2000 ppm.
After calibrating the analyzer with standard gas cylinders of zero & span gas, the analyzer shows values as per the standard gas.
But after this, with process sample gas the SO2 value goes to negative "-5 to -10" ppm. In our process the SO2 is near to 1 to 2 ppm.
We have done optical alignment/ phase adjustment , basic calibration but everytime this problem comes.
How could we avoid this negative value during process measurement? Is there any way to suppress the negative value?
After calibrating the analyzer with standard gas cylinders of zero & span gas, the analyzer shows values as per the standard gas.
But after this, with process sample gas the SO2 value goes to negative "-5 to -10" ppm. In our process the SO2 is near to 1 to 2 ppm.
We have done optical alignment/ phase adjustment , basic calibration but everytime this problem comes.
How could we avoid this negative value during process measurement? Is there any way to suppress the negative value?
Asked 7 months ago
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by Dieter Henkel
This topic is wrongly placed under Freelance
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