Yokogawa Pneumatic Retractables RF20H User Manual

Page 18

IM 12B06K05-E-E

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)