Commissioning
5.2 Calibration
SITRANS LU150
22
Operating Instructions, 03/2016, A5E34590123-AB
5.2
Calibration
The calibration of the mA output may be done such that its span will be either proportional or
inversely proportional to the material level.
Note
The 4 and 20 mA levels may be calibrated in any order.
Proportional span
Inversely proportional span
high level = 20 mA
high level = 4 mA
low level = 4 mA
low level = 20 mA
5.3
Calibration: reference method
1.
Adjust the material level (or target) to the desired distance from the sensor face.
2.
Press the “4” or “20” key (as appropriate) to view the stored distance associated with that mA
output value.
3.
Press the key a second time to set the new distance reference.
4.
After viewing or calibrating, the unit operation automatically reverts to the Run mode (6 sec).
The calibration value is referenced from the face of SITRANS LU150 sensor, in the units
displayed.
Summary of Contents for SITRANS LU150
Page 1: ...Operating Instructions SITRANS LU150 03 2016 Edition Ultrasonic Transmitters ...
Page 7: ...Introduction SITRANS LU150 6 Operating Instructions 03 2016 A5E34590123 AB ...
Page 9: ...Description SITRANS LU150 8 Operating Instructions 03 2016 A5E34590123 AB ...
Page 39: ...Technical data 8 7 Approvals SITRANS LU150 38 Operating Instructions 03 2016 A5E34590123 AB ...