Endress+Hauser RIA452 Betriebsanleitung Seite 119

RIA452
The following parameters must be configured:
Menu
LIMIT 1 to 8/M10 to 17
Grad operating mode
Fig. 17: Grad operating mode
The "Grad" operating mode is used for monitoring the changes in the input signal over time. The
time basis T
m
menu.
The difference between the lower range value M
is calculated. If the calculated value is greater that the value set under "Setpoint A", the relay is
switched in accordance with the failsafe mode configured in "Rel. Mode" (see Page 57).
The relay is switched on again once the difference between M
set in "Hysteresis". The sign determines the direction of signal change. Positive values monitor
an increase in the measured value while negative values monitor a decrease. A new value is
calculated every second (floating interval).
The following parameters must be configured:
Endress+Hauser
Function (menu item)
Function
Setpoint A
Hysteresis
of the monitoring system is configured in the "PARAMETER/M55 -> Grad. time"
Setting value
Max
Value for threshold
Value for hysteresis
and the upper range value M
0-m
and M
1-m
Commissioning
G09-RIA452ZZ-15-00-xx-en-006
of the interval
0
drops below the value
1
119