WIKA DI35 - Manual (Page 36)

6 Commissoning, operation
36 WIKA operating instructions digital indicator DI35-M
instantaneous value is only transmitted on the display by a
increasing shoulder via the digital input or by activating of the
multi-function key.
PN16: Activator for MIN / MAX value reset
After boot-up the MIN / MAX values are automatically set back on the
instantaneous value. To set back minimal- /maximal values even during
operation, 3 additional escapements are available.
PN16 = Activator for MIN / MAX value reset
0 None
1 Digital input active, for longer than 50 ms
2 Multi-function key pressed for longer than 50 ms
3 Digital input or multi-function key active, for longer than 50 ms
4 Taring function
The value reset is only shown shortly after actuation of the digital input or
multi-function key by 5 horizontal bars (“ - - - - - “) for 0.5 seconds. After that
the instantaneous value is shown as long in operating mode MIN / MAX value
display, as the activator is taken back. This way the instantaneous value can
be watched for a longer time.
If the value reset ought to be done during taring, then there is no report in the
display.
During value reset only the MIN/MAX value that presently shown in the
display is set back!
PN18: Zero point suppression
The zero point suppression offers the possibility of masking an area around
zero for displaying a value of zero. In the program number the amount is
parameterized which is then effective in both the positive and the negative
directions. This may be necessary if, for example, a number of revolutions is
being measured by an analogue sensor and has a drift around zero. If the
signal changes slightly when the motor comes to a standstill, a speed of zero
is still indicated. In addition, slightly negative rpms are suppressed.
PN20, PN21 and PN22: Analogue output
The parameters of the analogue output refer to the scaling of the display and
are cyclically updated with the measuring time. With PN22 = 0 the analogue
output can be de-activated, whereas it remains on its initial value after a re-
start of the device.
The analogue output can be related to all possible values that are recorded in
the device. For further information please see chapter „6.3.5 Analogue
output“ or chapter “6.7 program number table”.