Yokogawa Pneumatic Retractables RF20H - Manual (Page 18)

IM 12B06K05-E-E
18
7.6 Sensor breaks frequently
possible reason measure
sensor too long choose adequate sensor (chap. 4.7)
seals on sensor are missing insert seals on sensor (chap. 4.7)
Process liquid contains solids Adjusting the protection cage(chap. 4.4)
7.7 Leakage of process liquid at inspection window
possible reason measure
wetted sealings are defect Replacing the wetted sealings (chap. 6.6)
7.8 Compressed air emitted at inspection window
possible reason measure
drive unit defect Replacing the drive unitit (chap. 6.10)