Function Group System Parameter - Endress+Hauser Dosimag Operating Instructions Manual

Appendix – function description
50
10.8

Function group SYSTEM PARAMETER

INSTALLATION
DIRECTION SENSOR
FLOW DAMPING
BINOMIAL FILTER
MEDIAN FILTER
Function description
Function group SYSTEM PARAMETER
Use this function to reverse the sign of the measured variable, if necessary.
!
Note!
Ascertain the actual direction of fluid flow with reference to the direction indicated by
the arrow on the sensor nameplate.
Options:
FORWARDS (flow as indicated by the arrow on the nameplate)
REVERSE (flow in the opposite direction to the arrow on the nameplate)
Factory setting:
FORWARD
For setting the time constant of flow damping. This can be used to change the reaction
time of the measuring system to changes in flow. The reaction time increases with an
increasing time constant.
User input:
0 to 100 s
Factory setting:
0 s
!
Note!
Changes to this setting could affect measurement accuracy.
For setting the filter depth of the digital binomial filter. This can be used to reduce the
sensitivity of the measuring system to interference. The reaction time increases with an
increasing filter depth.
User input:
0 to 16
Factory setting:
4
!
Note!
Changes to this setting could affect measurement accuracy.
For setting the filter depth of the digital median filter. This can be used to reduce the
sensitivity of the measuring signal to interference peaks (e.g. in the event of high solids
content, gas pockets in the fluid, etc.). The reaction time increases with an increasing
filter depth.
User input:
0 to 16
Factory setting:
0
!
Note!
Changes to this setting could affect measurement accuracy.
Dosimag
Endress+Hauser