SICK FLOWSIC100 Flare

206 FLOWSIC100 Flare · Operating Instructions · 8013344/11L2/V 2-5/2018-10 · © SICK Engineering GmbH
Maintenance
Subject to change without notice
5.3 Maintaining the sender/receiver units
The sender/receiver units must be cleaned in regular intervals and checked for corrosion
and damage. To do this, the sender/receiver units must be dismounted from the nozzles.
Required tools and auxiliary means:
● Key for Allen screws SW 5
● Jaw wrench SW 24
● Screw driver
● Possibly blind plug for nozzle for non-retractable version
● Brush, cleaning cloth and cleaning alcohol
5.3.1 Removing sender/receiver units
Non-retractable sender/receiver units
 Loosen the screws on the flange of the sender/receiver unit.
 Carefully pull out the sender/receiver unit and place it in a suitable location.
 Close the nozzle with a blind plug (optionally available).
Retractable sender/receiver units
WARNING:
 Observe the relevant safety regulations as well as the safety notices in
Section 1 during all installation work (
→ pg. 10, § 1.1 et seq.).
 Take suitable protection measures against possible hazards.
 Carry out maintenance work only when hot parts have cooled sufficiently.
WARNING:
 At plants with increased hazard potential (toxic, aggressive, explosive
gases, health endangering, higher pressure and temperatures), remove the
sender/receiver unit only when the plant is out of operation.
An amount of gas escapes uncontrolled into the environment during
disassembly of the sender/receiver unit from nozzle.
 Take special precautions in the presence of toxic, aggressive, explosive, hot,
or other gases posing a health risk (risk of serious injuries)!
WARNING:
 Observe the maximum permitted pressure for operating the retraction
mechanism on retractable sender/receiver units:
– Device types FLSE100-EXS and EXRE: 16 bar at 50°C ( → pg. 42, Fig. 9)
– Device type FLSE100-EXPR: 0.5 bar at whole temperature range
 Close the ball valve after removing the sender/receiver unit with a blind
flange.
 Take special precautions in the presence of toxic, aggressive, explosive, hot,
or other gases posing a health risk (risk of serious injuries)!