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At Ceuta, says Canosa: "First our maintenance people dismantled the flowmeters, and then cleaned and decontaminated them. Then the Endress+Hauser engineers connected the flowmeter to the testing computer, and checked and verified its calibration. If the calibration tests showed that the measurements were not as specified, the engineers recalibrated the system until the correct accuracy was achieved. The calibration takes between one and two hours. The entire process, including disassembly, assembly and calibration does not exceed more than three of four hours per flowmeter."
See Also: Market Intelligence Report: Flowmeters
Figure 3. The Endress+Hauser on-site calibration kit ships in three flight cases, bringing calibration directly to the sensors.
Endesa has not limited its use of Endress+Hauser's services to Ceuta. The Coriolis flowmeters in service in its diesel plants in Melilla, just up the coast from Ceuta, on the Balearics in the Mediterranean, and in the Canary Islands, about 62 mi (100 km) off the coast of western Africa, have also benefited from the on-site calibration service.
As for Ceuta, Canosa says the facility is already planning to use the service again next year when the next three-year calibration is required. "This time we will expand the on-site services to include the calibration of the temperature sensors within our flowmeters. This will increase the service
cost, but it will guarantee us more accurate temperature measurements.