Endress+Hauser SpectraSensors J22 TDLAS Operating Instructions Manual page 114

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1. Setting the write protection (WP) switch on the main electronics module to
the ON position enables hardware write protection.
 In the Locking status parameter the Hardware locked option is displayed
→  120. In addition, on the local display the -symbol appears in front
of the parameters in the header of the operational display and in the nav-
igation view.
2. Setting the write protection (WP) switch on the main electronics module to
the OFF position (factory setting) disables hardware write protection.
 No option is displayed in the Locking status parameter. On the local dis-
play, the -symbol disappears from in front of the parameters in the
header of the operational display and in the navigation view.
J22 TDLAS Gas Analyzer
A029630
A029425
SpectraSensors, Inc.