Flexim FLUXUS WD200 - Page 80

FLUXUS WD100, WD200 15 Outputs
80 UMFLUXUS_F5WDV1-1EN, 2016-04-08
15.5.2 Setting the Limits
If the switching condition MAX or MIN is selected in the scroll list func, the limit of the output have to be defined:
Tab. 15.4: Alarm properties
alarm property setting description
func
(switching condition)
MAX The alarm will switch if the measured value exceeds the upper limit.
MIN The alarm will switch if the measured value falls below the lower limit.
+→- -→+ The alarm will switch if the flow direction changes (sign change of measured value).
QUANT. The alarm will switch if totalizing is activated and the totalizer reaches the limit.
ERROR The alarm will switch if a measurement is not possible.
OFF The alarm is switched off.
typ
(holding behavior)
NON-HOLD If the switching condition is not true anymore, the alarm will return to the idle state
after approx. 1 s.
HOLD The alarm remains activated even if the switching condition is not true anymore.
mode
(switching function)
NO Cont. The alarm is energized if the switching condition is true and de-energized if idle.
NC Cont. The alarm is de-energized if the switching condition is true and energized if idle.
Note! If no measurement is made, all alarms will be de-energized, independently of the programmed
switching function.
Select in the scroll list Input the physical quantity to be used for the comparison. The fol-
lowing list items are available for the alarm output R1:
• selected physical quantity
• signal amplitude
• sound speed of the fluid
Press ENTER.
switching condition: MAX
Enter the upper limit. Press ENTER.
The alarm will switch if the measured value exceeds the limit.
switching condition: MIN
Enter the lower limit. Press ENTER.
The alarm will switch if the measured value falls below the limit.
Example 1: High Limit: -10 m³/h
volumetric flow rate = -9.9 m³/h
the limit is exceeded, the alarm switches
volumetric flow rate = -11 m³/h
the limit is not exceeded, the alarm does not switch
Example 2: Low Limit: -10 m³/h
volumetric flow rate = -11 m³/h
the measured value is below the limit, the alarm switches
volumetric flow rate = -9.9 m³/h
the measured value is not below the limit, the alarm does not switch
R1 Input: ↕
Volume flow
High Limit:
-10.00 m3/h
Low Limit:
-10.00 m3/h