WIKA DI30 - Manual (Page 27)

6 Commissoning, operation
WIKA operating instructions digital indicator model DI30 27
PN13: Indication time
The indication time is the interval at which the display is updated. The longer
the time between two indication cycles, the more calm the display. As a rule,
the eye perceives the indication time of 1 sec. as very pleasant. If the
adjusted indication time is longer than the adjusted measuring time (PN14),
no averaging of the detected measuring values during the display time takes
place. The display will be always refreshed with the newest detected
measuring value.
PN14: Measuring time
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.
PN50 to PN52: Security setting, user level
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 in PN52, the lower is the security level
of the unit parameters against user intervention. (
●: available function at the
selected userlevel)
Userlevel (PN 52 =) 0 1 2 3 4 5 6 7 8
Access to: PN:
Locking code / user level 51, 52
●
Measuring input parameters 0 ... 3, 5, 10, 13, 14
● ● ●
Tara / Hold 54
● ● ●
Linearization parameters for measuring
input 100 ... 110
● ● ●
Parameters of the alarm outputs 59, 60, 63 … 65,70,
73 … 75
● ● ● ● ●
Hysteresis of the alarm outputs 62, 72
● ● ● ● ● ●
Thresholds of the alarm outputs 61, 71
● ● ● ● ● ● ●
Access code 50
● ● ● ● ● ● ● ● ●
Serial number 200
● ● ● ● ● ● ● ● ●
The user levels 1, 3 and 7 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 DI30 both
parameters are set to 0000, so that the programming lock is deactivated.