deltawaveC-P
User manual
systec Controls Mess- und Regeltechnik GmbH 129/139
www.systec-controls.de
Theta:
Angle between ultrasonic path and flow vector
Path length
Length of acoustic path. Depends on pipe size and on choosen installation
mode of transducers.
(Delay):
Represents the time when the measuring window starts
Sensor distance
Distance between the two transducers
Bar index
Mounting positions when using spacer bar
Gain
The required amplification (gain) of the signals is automatically set
continously. 0 represents no amplification (not applicable) while 255
represents the maximum amplification. The lower the gain the better the
signal transmission. Very high gain might indicate a disturbed signal (gas,
particles, wrong mounting,…)
dT Corr:
Time shift of signals created by zero setting
Quality
The quality parameter represents the “thoughness” of the internal filter.
Filter means that deltawaveC-P checks each signal if plausible or not
using the quality parameter. When choosing quality 0 there will be no
filtering. That means that each signal is used for measurement even the
bad (and maybe wrong) ones. Filtering of 100 would mean that filtering is
very strict. Both values ( 0 / 100) are not recommended. Typical values are
50-75. When not getting measurement it might be useful to set quality
lower (e.g. set to 20)
Table 5 Data in diagnostic menu 2