Field Calibration Adjustment available for PME miniDOT® and miniDOT® Clear Loggers
Extend Field Usability of Loggers
Field-Friendly Calibration Adjustment
Precision just got easier with the Field Calibration Adjustment for miniDOT® and miniDOT® Clear Loggers. Our team understands the rigorous and often remote locations where our loggers are utilized. Retrieving loggers, data and verifying optical sensor accuracy is essential to successful data collection. We have developed a simple three-step process that allows researchers to easily measure, analyze and update the optical sensor accuracy in the field.
Benefits of Field Calibration Adjustment
Extends field usability of data logger
Improves optical sensor accuracy in the field
Minimizes occurrence of sending data loggers back for factory recalibration, reducing cost and lost time in the field
Multiple miniDOT® Loggers can undergo the same field calibration adjustment at once, minimizing the time for the adjustment
Recalibration vs. Field Calibration Adjustment
Recalibration
Recalibration involves examining the sensor at varying points of oxygen and temperature over the entire sensing range of 0 to 35 degrees C and 0 to 150% (DO) saturation. The sensor is exposed to each point and based on measurements collected, a mathematical equation is created that then allows the sensor to record the proper value at each of the varying points and points in between. This process is performed in the lab by the PME engineering team.
Field Calibration Adjustment
Field Calibration Adjustment is based on PME’s knowledge that all calibration points in each sensor tend to change the same percentage over time. By measuring the percentage of change of one calibration point, we can conclude all other points have changed the same amount. The miniDOT® Logger and miniDOT® Clear Logger software change the calibration mathematics within the sensor so that the calibration point change percentage of one point is applied to change all the other points by the same percentage. This process can now be performed in the field by PME customers and researchers.
*Please note that factory recalibration is the only way to ensure a miniDOT® and miniDOT® Clear Logger sensor meets PME’s stated calibration accuracy.
*Not all miniDOT® Loggers are candidates for field calibration adjustment. Please refer to PME guidelines when selecting loggers for field calibration adjustment.
Get The Guide
Complete the form to download the Field Calibration Adjustment How To Guide.
