5 access service mode, Operation 5.3.5 access service mode – Hach-Lange SIGMATAX2 User Manual
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Operation
5.3.5
Access service mode
1. Press one of the function keys, F1 to F4, for 3 seconds.
2. Press F4 twice to scroll to the [+SERVICEMENU] menu.
3. Press F2 to open this menu.
4. When the [+INSPECTION] or [+FUNCTION TEST] menus are selected, the system
automatically switches to service mode.
Service mode means that:
•
The instrument is no longer in operational mode
•
The sampling probe and sample storage vessel are empty
•
The system is depressurized
•
The sampling probe is closed
•
The fault indication contact remains in the last valid position
•
The instrument will not switch back automatically to operational mode
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