Defining Codes; Setting The Contrast - RMG EC 900 Operating Instructions Manual

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Defining codes

On delivery of the device, the codes are set to defaults, i.e. every person who knows these defaults
or has the operating instructions on hand can change parameters, even those under legal control.
Therefore, it is essential that you change these codes before you start to use the device for meas-
urements. To do this, it is necessary to first input the current and then the new code. If you want to
change the C2 code, for example, first type "22222222" and then the desired new code for C2. If
you now want to change C3, for example, you have to type the current C3 code first.
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NOTE: If you input a code in order to enable parameter changes, you have to press the key to
terminate your inputs. If you want to change the code, you have to press Enter to terminate input-
ting the new code (as with changes of parameters).
See page 38 where you can find a table with the various codes and their defaults. See "OPER. /
Changing parameters" for a description of how to enter them.
Code "M" has been permanently specified and cannot be changed or made visible. It enables the
factory settings to be changed by RMG's service engineers.

Setting the contrast

The contrast of the LCD display is set in the factory in such a way that the texts can be read easily
when you look vertically at the device. However, it may be necessary to reset the contrast depend-
ing on the reading angle, brightness and temperature prevailing on site.
To do this, first press the " " key to activate the display. The "Contrast" parameter is to be found in
the first line of the start window ("CUSTOMIZED DISPLAY" book). If necessary, you might have to
press Esc several times until the start window appears.
To increase the contrast, first press the " " key and hold it depressed. Then press the " " key so
many times until the contrast is high enough.
To reduce the contrast, first press the " " key and hold it depressed. Then press the " " key so
many times until the contrast is low enough.
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