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Operation
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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 the submenu "Parameter/User Code". All the parameters remain visible on the
display but the "key" symbol is shown on the display. If you then want to change a parameter, you
first have to set the valid user code.
Hardware locking
In addition, configuration can also be locked using a connector on the rear of RIA452 (see drawing).
This is indicated by the "padlock" symbol on the display.
To hardware-lock the measuring instrument, insert the jumper into position J1 in the top right-hand
corner on the rear of the instrument.
Fig. 13: Position of the jumper on the rear of the instrument
Note!
Hardware locking has no effect on the PC operating software Readwin
RIA452
®
2000.
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