Uni-Probe LB 490
BERTHOLD TECHNOLOGIES GmbH & Co. KG
7 – 681
Volume 7 4 Calibration with FOUNDATION
™
Fieldbus
7
Go to the function block TRANSDUCER.
Enter the upper calibration point at
LE_LEVEL_HI.
Start reading-in by selecting Read In at
LE_START_STOP_READ_IN.
• Watch the display of
LE_READ_IN_SENSOR_VALUE in
LE_READ_IN_DATA. At the start of the measurement, the value
fluctuates and should reach a stable state at the end. Other-
wise, increase the averaging time in
LE_READ_IN_TIMEOUT.
• LE_READ_IN_TIMEOUT_ACTUAL shows the time you have to
wait,
LE_READ_IN_STATUS shows Read In Off, as soon as the
measurement is finished.
Read off the actual pulse rate at
LE_READ_IN_SENSOR_VALUE
in the record
LE_READ_IN_DATA.
Enter the read off pulse rate at
LE_CAL_POINT_HI.
Send the entry to the Uni-Probe.
This completes the full calibration.
A test calculation should be performed after every calibration to
ensure that your calibration data is plausible and the device has
been set up correctly (see section 5.3 on page 7–693).
This completes the two-point calibration.
Parameters used
LE_CAL_POINT_HI
LE_LEVEL_HI
LE_READ_IN_DATA
LE_READ_IN_TIMEOUT_ACTUAL
LE_READ_IN_STATUS
LE_READ_IN_SENSOR_VALUE
LE_READ_IN_TIMEOUT
LE_START_STOP_READ_IN
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