Chapter 6 ___________________________________________________Calibration and adjustment
VAISALA ______________________________________________________________________ 135
Temperature Adjustment
Using Display/Keypad
1. Press the ADJ button on the motherboard to open the
ADJUSTMENT MENU. If using a warmed probe for
measuring, probe heating will be interrupted when ADJ button
is pressed. Wait some time for the probe to reach ambient
temperature.
2. Select Adjust T measurement (or TA measurement for
additional probe) press the right arrow key.
3. Select 1-point/ 2-point adjustment. Press the START key.
4. Remove the filter from the probe and insert the probe head into
the reference temperature.
5. Wait at least 30 minutes for the sensor to stabilize. Follow the
stabilization from the GRAPH display.
6. Press the READY key when stabilized. Give the reference
temperature by using the arrow keys.
When carrying out the 2-point adjustment, proceed to the next
adjustment point and carry out the procedure as described in the
previous items. Please note that the difference between the two
temperature references must be at least 30 ºC.
7. Press the OK key. Then press YES to confirm the adjustment.
8. Press the OK key to return to the adjustment menu.
9. Press the EXIT key to close the adjustment mode and return to
the basic display
Using Serial Line
1. Press the ADJ button on the motherboard to open the
adjustment mode. If using a warmed probe for measuring, probe
heating will be interrupted when ADJ button is pressed. Wait
some time for the probe to reach ambient temperature.
2. Remove the probe filter and insert the probe head into the
reference temperature.
3. Enter the command CT or (CTA for additional T probe) and
press ENTER.
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