Endress+Hauser Proline Prosonic Flow W 400 Operating Instructions Manual page 118

Commissioning
118
2. Setting the write protection switch (WP) on the main electronics module to the ON
position enables the hardware write protection. Setting the write protection switch
(WP) on the main electronics module to the OFF position (factory setting) disables
the hardware write protection.
 If the hardware write protection is enabled: In Locking status parameter, the
Hardware locked option is displayed. In addition, the  symbol appears on the
local display in front of the parameters in the header of the operational display
and in the navigation view.
If hardware write protection is disabled: No option is displayed in the Locking
status parameter . In the local display, the  symbol disappears from in front of
the parameters in the header of the operational display and in the navigation
view.
3.
WARNING
L
Excessive tightening torque applied to the fixing screws!
Risk of damaging the plastic transmitter.
‣
Tighten the fixing screws as per the tightening torque →  49.
Reassemble the transmitter in the reverse order.
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20.50
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Proline Prosonic Flow W 400 HART
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Endress+Hauser
A0029425