MRG
MRG
MRG
MRG----10
10
10
10
Configuration
Configuration
Configuration
Configuration
5-9
5.5 Analog value compensation
When analog output current is not correct, revise the value in the following manner.
Input “4.000mA” under “Fixed Current Output” [2-5], then input the measured current value
under “4mA Calibration” [4-1].
Input “20.000mA” under “Fixed Current Output” [2-5], then input the measured current value
under “20mA Calibration” [4-2].
5.6 Measuring value compensation
Offset level from reference point and scale factor are adjusted under [4-3] (offset) and [4-4]
(scale factor). If there is a difference between the Tank ref. point and the MRG-10 ref. point,
you can input “G” for calibration [1-4].
5.7 Bottom recognition
Tank bottom recognition is necessary for measurement of low reflection targets such as oil
surfaces. In such cases, the smaller amplitude echo from liquid surface reflections is
concealed in the larger echo from the tank bottom and the gauge can not distinguish the
surface reflection echo from the bottom echo. “Bottom Visible Flag” and “Bottom Window”
parameters of the gauge function to avoid the tracking of bottom echoes. Initial settings of
these parameters are “On” and “0.3m”.
The gauge outputs level value as the bottom level, when the surface echo is in the bottom
window. However when the level is higher and the surface echo is not in the bottom window,
the gauge can distinguish surface echoes from bottom echoes. On the other hand, if bottom
echoes cannot be discerned in high reflection targets such as water, the “Bottom Visible Flag”
parameter should be set at “Off” to eliminate any bottom deadband.
5.8 Other
5.8.1 Echo search methods
Two echo search methods are available - one based on recognizing the echo of maximum
signal strength (Max. Echo Flag) and the other where the first echo in the measurement range
is captured (First Echo Flag).
The “First Echo Flag” provides a means to recognize the surface echo from other echoes in
the measuring range.
5.8.2 Reset
Initializes all setting values.
