RIA452 Operation
Endress+Hauser 19
Possible characters
The following characters can be entered:
Space +ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789/
\%°
23
+-.;:*() followed by return symbol (arrow to left)
5.3.3 Disabling the programming mode
User code
The configuration can be protected against unintentional access by means of a four-digit
code. This code is defined in menu item 55 "Parameter/user code". All the parameters remain
visible but can only be changed after entering the user code.The "key" symbol is shown on the
display. If the limit values are also to be locked, the "Limit code" must be set to "On" in menu
item 55. Limit values can then only be changed after entering the user code. If the limit code
is set to "Off", limit values can be changed without entering the user code. All the other
parameters are locked, however.
Hardware locking
In addition, configuration can also be locked using a connector on the rear of the device (see
drawing). This is indicated by the "padlock" symbol on the display.
To hardware-lock the measuring device, insert the jumper into position J1 in the top right-
hand corner on the rear of the device.
G09-RIA452ZZ-19-00-00-xx-004
Fig. 12: Position of the jumper on the rear of the device
Item
No.
Description
1 Activate the operating menu by pressing the jog/shuttle dial for at least 3 seconds. The
first character then starts flashing.
2 You can change the flashing (selected) character by turning the jog/shuttle dial (see
"Possible characters" in the next paragraph). You can go back to the previous character
by selecting the back symbol (arrow to left).
3 Press the jog/shuttle dial to accept the selected character and to switch to the next
character.
4 Press the jog/shuttle dial briefly for the last character to accept the entry.
5 Press the jog/shuttle dial for longer than 1 second (max. 2 seconds) to reject the entry
at the point in question.
The hardware lock does not affect the PC operating software.
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