ALMEMO® multi-point adjustment www.ahlborn.com Usage In case reference or correction values are available, the user can carry out the multi-point adjustment by himself. By means of the free software ALMEMO® CONTROL a correction table is converted to an interpolation table containing over 30 basic values and saved to the ALMEMO® plug. Using the function “consider correction value zero and gradient” the readouts of a pre-scaled sensor are corrected. This procedure requires an ALMEMO® device (e.g. ALMEMO® 2690-8) featuring the option “KL” (multi-point adjustment and special measuring ranges). Sensor with multipoint adjustment ALMEMO® plug with 4K EEPROM. Characteristic curve and sensor characteristics are saved to the plug The correction table programmed on the ALMEMO® plug can be saved as a file to the PC and additionally as an Excel table for archiving purposes. Of course, it is possible to load the correction table again from the archived file as well as from the ALMEMO® plug. Consequently, the user is able to access his multi-point adjustments at all times. Hand units from series ALMEMO® 2450, 2470, 2490 as well as 2590 are already able to process ALMEMO® plugs with a programmed multi-point adjustment as standard. For sensors that have special linearizations saved on the ALMEMO® plug, a multi-point adjustment is not possible. ALMEMO® multi-point adjustment Measuring instrument ALMEMO® 710 a precision measuring instrument with touchscreen For precisely correcting measuring chains • Increased options due to additional memory in the ALMEMO® plug During the calibration of the ALMEMO® measuring technology, the sensor deviation is determined in every calibration point and saved as correction value to the ALMEMO® plug. The measured values for such multipoint adjusted sensors are then listed in the calibration certificate. Compared to the reference values, the identified sensor deviations are close to zero. Measurements within the calibrated interval can then be carried out with minor deviations. The measured value displayed on the ALMEMO® measuring instrument is the already corrected value and can be used directly. It is not necessary anymore to correct the displayed measured value on the basis of the calibration certificate. Maximum flexibility with special linearization of non-linear sensors Maximum precision due to multi-point adjustment in the ALMEMO® plug We are an accredited calibration laboratory in terms of the parameters relative humidity, pressure, temperature, flow velocity and electrical quantities according to the standard DIN EN ISO/IEC 17025. Ahlborn Mess- und Regelungstechnik GmbH Eichenfeldstr. 1 l 83607 Holzkirchen l Germany Tel. +49 8024 3007 0 l FAX +49 8024 3007 10

ALMEMO® multi-point adjustment 1. Individual sensor linearization In addition to the sensor characteristics (e.g. range, dimension, scaling- and limit values, comments) it is now possible to save complete characteristic curves of a sensor in the ALMEMO® plug. This offers the great opportunity to connect also non-linear sensors to the ALMEMO® system whose linearizations (measuring ranges) are not saved to the device itself. Consequently, the variety of sensors compatible with ALMEMO® devices is immensely increased. The user is able to carry out the special linearization by himself. By means of...