Flexim FLUXUS WW, Руководство пользователя

Страница: 112 / 146

FLUXUS WW 16 Outputs
112 UMFLUXUS_WWV1-1EN, 2018-02-28
16.1.2 Error output
In the following dialog, an error value can be defined which is output in case a source item cannot be measured, e.g., if
there are gas bubbles in the fluid.
Tab. 16.2: Error output
error value result
Minimum
the lower limit of the output range is transmitted
Hold last value
the last measured value is transmitted
Maximum
the upper limit of the output range is transmitted
Other value...
The value has to be entered manually.

It has to be within the limits of the output.
Example: source item: volumetric flow rate

output: current output

output range: 4…20 mA

error value delay t
d
(see section 16.2): > 0
The volumetric flow rate cannot be measured during the time interval t
0
...t
1
(see Fig. 16.1). The error
value will be transmitted.
Fig. 16.1: Error output
Tab. 16.3: Examples for the error output
list item for the error output output signal
? ? ?
v [ m 3 / h ]
t
t
0
t
1
v [m³/h]
t
0
t
1
t
Error-value ↕

Minimum (4.0mA)
I [ m A ]
2 0
4
t
t
d
Error-value ↕

Hold last value
I [ m A ]
2 0
4
t