Temperature Compensation - wtw EcoLine LF 170 Bedienungsanleitung

Temperature compensation

Temperature compensation
The Pt submenu enables compensation of the temperature measuring sensor The Pt submenu enables compensation of the temperature measuring sensor
tolerances in the test probe (shifting of the zero point by a maximum of 0.5 °C) tolerances in the test probe (shifting of the zero point by a maximum of 0.5 °C)
Immerse the measuring probe in a vessel containing at least 2 liters of Immerse the measuring probe in a vessel containing at least 2 liters of
water due to its thermal capacity. water due to its thermal capacity.
Leave the measuring probe and reference thermometer in the water for Leave the measuring probe and reference thermometer in the water for
at least 15 minutes, or with temperature differences between the water at least 15 minutes, or with temperature differences between the water
and test probe > 10 °C for at least 1 hour, and stir the water occasionally and test probe > 10 °C for at least 1 hour, and stir the water occasionally
until the comparison can be made. until the comparison can be made.
Setting: Setting:
− Use ENTER to call up the Pt submenu: − Use ENTER to call up the Pt submenu:
120 120
Parameterization Parameterization
− Use the UP / DOWN keys to set the value − Use the UP / DOWN keys to set the value
(± 0.5 °C). At the same time, the corrected (± 0.5 °C). At the same time, the corrected
measured value (upper line) and the measured value (upper line) and the
correction value (lower line) are displayed. correction value (lower line) are displayed.
− −
Press the ENTER key to run through the Press the ENTER key to run through the
"reference temperature" submenu. "reference temperature" submenu.