Siemens SITRANS L Manuale di istruzioni per l'uso - Pagina 25
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6.4
20 mA calibration
6.5
Blanking
Blanking is used to ignore the zone in front of the transducer where false echoes are at a level
that interfere with the processing of the true echo. It is measured outward from the sensor
face. The minimum recommended blanking value is 0.25 m (0.82 ft) but can be increased in
order to extend the blanking.
①
②
SITRANS LU180
Operating Instructions, 09/2021, A5E37100674-AB
20 mA calibration initiated
view stored 20 mA calibration value
(i.e. 0.50 m)
press "4" to increase to new calibration value
(i.e. 0.45 m)
new calibration value
SITRANS LU180
Blanking
Operating
6.4 20 mA calibration
25