Endress+Hauser Levelflex FMP53 HART Operating Instructions Manual page 58

Operation options
58
4. Setting the write protection switch (WP) on the main electronics module to the ON
position enables hardware write protection. Setting the write protection switch (WP)
on the main electronics module to the OFF position (factory setting) disables
hardware write protection.
 If the hardware write protection is enabled: The Hardware locked option is
displayed in the Locking status parameter. In addition, on the local display the
-symbol appears in front of the parameters in the header of the operational
display and in the navigation view.
If the hardware write protection is disabled: No option is displayed in the Locking
status parameter. On the local display, the -symbol disappears from in front of
the parameters in the header of the operational display and in the navigation
view.
5. Feed the cable into the gap between the housing and main electronics module and
plug the display module into the electronics compartment in the desired direction
until it engages.
6. Reverse the removal procedure to reassemble the transmitter.
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20.50
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Levelflex FMP53 HART
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Endress+Hauser
A0015870