Endress & Hauser Process Automation (UAE) Trading LLC
Endress & Hauser Process Automation (UAE) Trading LLC
Control tower
Dubai Motor City, 17th floor
P.O. Box 473547
Dubai
United Arab Emirates
Medical autoclaves and steam sterilizers rely on accurate, precise and reliable temperature measurements to comply with process requirements. New sensor technology automates recalibrations to reduce risk between intervals and provide audit-proof batch certification.
automated process verification
accurate process control
reduced uncertainty batch-to-batch
cost and time savings
Standard practice in medical autoclave operation is to monitor temperature in the coldest part of the process by placing a sensor instrument in the drain or near the bottom of steam sterilization equipment. Since measuring instruments are subject to age-induced drift or mechanical damage, recalibration is necessary to guarantee reliable process monitoring. Should an instrument fail, there is no reliable way to quickly pin-point the timespan and batches affected in between calibration cycles.
A self-calibration method that uses the Curie temperature of a reference material as the built-in fix point temperature reference. A trial phase has successfully demonstrated that the self-calibrating instrument performed well above expectations. On average, during it’s one-month installation period and 600 operation hours, the instrument performed approximately 80 successful in situ self-calibrations. This equates to an average of nearly two batches and two calibrations per day.
The self-calibrating sensor was installed at the coldest point in the autoclave, next to an existing sensor to establish a second temperature reference. The probe was calibrated in an accredited calibration lab before and after the trial. All 80 performed calibrations were successful, and the sensor accuracy was well within specified limits.
Endress & Hauser Process Automation (UAE) Trading LLC
Endress & Hauser Process Automation (UAE) Trading LLC
Control tower
Dubai Motor City, 17th floor
P.O. Box 473547
Dubai
United Arab Emirates
Endress Hauser Emirates Trading of Control Equipment and Measurement Device
Endress Hauser Emirates Trading of Control Equipment and Measurement Device
Mazyad Office Building
Mohammed Bin Zayed City (MBZ), Office 1001, 10th Floor
P.O. Box 92133
Abu Dhabi
United Arab Emirates