Tisch Environmental PUF+, Operator'S Manual

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Tisch Environmental PUF+ Operator’s Manual
35
ENTER
REFERENCE VALUE:
20.0
Once the ENT key is pressed, the screen below will be displayed. This screen will
automatically exit and return to the main calibration screen once the system has collected a
stable reading from the applied signal. If the reference signal is not sufficiently stable, this
screen may be displayed for a long period of time. In these situations, the user may press the
“F1” key to force the unit to collect data even if it is not being detected as stable. This may
not result in an optimal calibration, but may be required in cases where the reference in not
stable.
ACQUIRING DATA
TARGET: 21.5
Tamb: 21.6
ADC: 39301
STABLE: YES
POINTS SAMPLED: 5
Once back at the main calibration screen, the reference value should now match the
calibrated sensor value more closely. This process can be repeated to add different
calibration points across the range of operation of the sensor.
Redo a Calibration Point (F2)
Pressing the F2 key (REDO) will list the current calibration points used to calibrate the
sensor. Selecting one of these points allows the calibration point to be performed again.
This allows the user to recover to a bad calibration point without having to redo all of the
calibration points. The procedure for redoing a calibration point is identical to adding a
calibration point, once the desired calibration value is selected.