Operation
Dräger Polytron 8700/8720 11
4 Operation
4.1 Operating fundamentals
4.1.1 Menu navigation
It is possible to scroll throught he menu items by tapping the
and symbols with the magnetic wand (Part Number
4544101, blue). confirms a function.
Graphic symbols facilitate navigation in the various menus.
4.1.2 Changing parameter values or the parameter status
1. Select the desired menu item with and .
2. Confirm the menu item with .
The current value or status will be displayed.
3. Using and , the value of a numerical parameter can
be changed or preset values can be selected.
4. As soon as the desired value or the selection is displayed,
tap to validate/confirm the new parameter.
5. Tap to access the next higher level.
z If exiting using Back to menu or Previous, all changes will
be discarded.
4.1.3 Exiting menus
z Ta p Back to measurement and to exit the menu.
4.2 Display and LEDs
In measurement mode, the current gas concentration,
the name of the gas and the measurement units are shown on
the display. The green LED lights.
In addition, the following symbols may be displayed:
z " ", if the measurement range is exceeded
z " - - - - " and " X " in the event of a malfunction. The yellow
LED lights, (see chapter 4.2.2 on page 12).
z "SIL", when SIL status is activated.
When the optional relay PCB is used:
z If the first alarm has been triggered, the red LED gives
single flashes.
z If the second alarm has been triggered, the red LED gives
double flashes.
NOTICE
The housing cover should be fitted when using the
magnetic wand. If the housing cover is not fitted,
the magnetic wand might activate two or more buttons
at the same time (crosstalk).
Together with the text » Back «, » Menu «, etc., exit the
menu or go back 1 step.
Closed folder
Further functions or sub-menus are located under
this item.
Opened folder
The functions and sub-menus available here are listed
under this item.
Function
When activated, functions can be executed in one or
more steps.
Selection activated
For functions that can be selected and activated,
the activation is initiated by pressing » «.
List closed above / complete
There are no further functions, menus or sub-menus
listed above.
List can be scrolled upwards
There are further functions, menus or sub-menus
listed above.
00733300.eps
i
i
OK
List closed below / complete
There are no further functions, menus or sub-menus
listed below.
List can be scrolled downwards
There are further functions, menus or sub-menus
listed below.
Next
Perform context-related action.
Number / total number of steps (screens) within
the function.
Entry
Enter data with » « and » «.
3/3
2/2
M
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