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PRESYS
| Instruments
3.2 - Configuration
The DCY 2050 and 2051 controllers can be configured with a password system to
prevent unauthorized people from altering critical process parameters.
Therefore, whenever the key ENTER is pressed, with the mnemonic CONF
(Configuration) showing on the upper display and depending on configuration, one of the
following cases may occur:
i) Enter directly into level 1 (GENERAL) of configuration mode, indicating that the
instrument was not configured with the password system.
ii) The display shows the password warning, indicating that the instrument is provided
with a password system which can be either by key or by value, as illustrated on figure
11.
In the case of password by key, the user should press the UP, DOWN and
ENTER keys in sequence to enter in the configuration levels.
In the case of password by value the user should press the ENTER key a second
time to obtain the display of number 0000 with the last digit flashing on the right. The
flashing digit indicates the position where the digit of a 4-digit number will be entered by
the user. In order to move to the other digits to the left of the number one should press
the ENTER key. After entering all digits, press once more the ENTER key to switch to
level 1 in case the password is correct; otherwise, the system reverts to normal
operation (see figure 11).
PASS
PASS
Fig. 11 - Password system by key and by value
DCY-2050 and DCY-2051
RIGHT
WRONG
0000
RIGHT
WRONG
GENERAL
OPERATION
GENERAL
OPERATION
Operation
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