What chlor-alkali development in debugging engineering, fill in the spherical tank, the practical method of liquid level is measured with a tape measure to verify the measuring results. SBP magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer
measurement results show that the differential pressure transmitter to measure the result of the big, to a certain value; Measurement radar thermometer slants small, close to the fixed value. SBP magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer
after analysis that there are two reasons: the above measurement error caused by SBP magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer
(1) differential pressure transmitter installation position measured value is larger. 650 m3 spherical tank and 2 000 m3 spherical tank, differential pressure transmitter positive pressure spherical tank bottom side of the diaphragm flange process installation hole distance have a certain distance, the distance of constant error shall be revised in in DCS by calculation. SBP magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer thermometer
2) radar installation position caused by the smaller measurements. For radar thermometer mounting holes at the top of the process are not spherical tank at the top of the center position, nor cause bell type antenna axis is on the center of the spherical tank bottom, radar wave on the certain degree to the side walls, small measured value. SBP magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer
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