Programming
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7.1.7.
Measuring time PN14
The measuring time corresponds to the conversion time of the A/D conversion, which
determines the response time of the alarm outputs. The longer the conversion time, the
smaller the influence of disturbances and the higher the resolution of the measured signal.
7.1.8.
Security setting, user level PN50 to PN52
With the parameters in the security settings, access to the program numbers is regulated
through the setting of various user levels. The user levels divide the access into various
levels. The user is only given access to the settings authorised by the system operator,
such as the setting of thresholds. The lower the figure for the user level given under PN52,
the lower the level of security of the unit parameters against user intervention.
Userlevel (PN 52 =)
Access to::
PN:
0 1 2 3 4 5 6 7 8
Locking code / user level
51, 52
X
Measuring input parameters
0 ... 18
X X X
Tara
/
Hold
54
X X X
Linearisation parameters for measuring
input
100
...
110
X X X
Parameters of the alarm outputs
59, 60, 63 … 65,
70, 73 … 75
X X X X X
Hysteresis of the alarm outputs
62, 72
X X X X X X
Thresholds of the alarm outputs
61, 71
X X X X X X X
Access code
50
X X X X X X X X X
Serial number
200
X X X X X X X X X
The user levels 1 and 3 are reserved user levels at which access to the higher numbered
user level is active.
The parameterised user level PN52 is active as long as the locking code PN51 and the
access code PN50 are different. On delivery of the
IAKV
-2VR4C
both parameters are set
to 0000, so that the programming lock is deactivated.
On changing to programming mode, the unit jumps to the first authorised program number.
If user level PN52 = 3, then, for example, the parameters of the alarm outputs can be
changed, but changing the parameter of the measuring input (PN0) is not possible at this
user level.
In order to obtain access to all program numbers later (equivalent to user level 0), you have
to enter under PN50 the same code you entered before under PN51. You must then
acknowledge this by pressing the [
P
] key for approx. 1 s. After this you have access to all
program numbers.
Caution!
If the locking code becomes lost, the unit can be set to the default value 0000 at
the manufacturer's without any data loss.
