Hach-Lange SONATAX sc - Manual (Page 26)

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Operation
TEST / MAINT
SIGNALS
MOIST Indicator as to whether water is in the probe.
TEMPERATURE Temperature of the surrounding water in °C or F°.
SENSOR ANGLE Deviation of the probe axis from the perpendicular in degrees.
ECHO LIST
The received echo signal in digits (units of the AD converter) is shown at the
corresponding measurement depths in a list. The first element at 0 meters shows the
strength of the transmission pulse.

A new measurement can be started.
PROFILE LIST
A profile is calculated from the ultrasound echo and shown for the corresponding
depths respectively as profile strength. The profile is similar in its curve with the TS
profile of the tank. At an average solid content, the values are in the order of 1.

A new measurement can be started. (See Figure 3 on page 10 )
REFLEXLIST
Shows the reflex list. A new measurement can be triggered. Refer to REFLEXLIST
on page 24
FREQUENCY The resonance frequency of the ultrasound transducer is shown.
AMPL DIAG The resonance voltage of the ultrasound transducer is shown.
THRESHOLD
To determine the sludge level, a profile is first calculated from the ultrasonic echo.
This roughly returns the solid content depending on the tank depth. The sludge level
is assigned to the tank depth where the profile exceeds the threshold for the first
time.
SHOW AMPL.
On activation, the resonance profile of the ultrasound transducer is shown instead of
the sludge profile (PROFILE LIST) as a graphic in the measurement window (only
valid with sc1000). The resonance profile can be switched ON and OFF.

After switch-off, the sludge profile (PROFILE LIST) is shown on the measurement
window again.
4.5 SENSOR SETUP menu (Continued)
Select the SONATAX sc (if several sensors are connected)