Siemens SIPROCESS GA700 Operating Instructions Manual page 193

Improper connection after maintenance
Danger of explosion in areas subject to explosion hazard or device damage.
● Connect the device correctly after maintenance.
● Close the device after maintenance work.
See Chapter →Wiring (Page 47).
Note
Depending on the use of the device and certain empirical values, determine a maintenance
interval for the tests to be carried out repeatedly.
The maintenance interval is also influenced by the corrosion resistance of the materials coming
into contact with the sample gas, for example, depending on the respective location of use.
Note
The device must not be opened during operation. After switching off, a waiting time of 10
minutes must be observed so that energy-saving components are sufficiently discharged.
Open the device only for installation or maintenance.
See also
Safety information (Page 47)
Field device
Operating Instructions, 05/2015, A5E35640463-02
WARNING
Service and maintenance
9.1 Safety instructions
81