Burkert Type 8186 - Manual (Page 14)

In ultrasonic and radar sensors as well as sensors with guided
microwave, the "Echo curve" represents the signal strength of the
echoes over the measuring range. The units of the signal strength are
"
dB" (ultrasonic and radar) and "Volt" (guided microwave). The signal
strength allows an assessment of the quality of the measurement.
With ultrasonic and radar sensors, the "False echo curve" represents
the saved false echoes (see menu "Service") of the empty vessel with
signal strength in "dB" over the measuring range.
Up to 3000 measured values are recorded (depending on the sensor)
when starting a "Trend curve". Then the values can be displayed on a
time axis. The oldest measured values are always deleted.
In the menu item "Choose curve", the respective curve is selected.
Curve selection
Echo curve ▼
Information:
The trend recording is not activated when being shipped. It must be
started by the user via the menu item "Start trend curve".
A comparison of the echo curve and the false echo curve allows a
more detailled specification of measurement reliability. The selected
curve is updated continuously. With the [OK] key, a submenu with
zoom functions is opened.
The following functions are available with "Echo and false echo
curve":
l "X -Zoom": Zoom function for the meas. distance
l "Y -Zoom": 1, 2, 5 and 10x signal magnification in "dB"
l "U nzoom": Reset the presentation to the nominal measuring range
with single magnification
In the menu item "Trend curve" the following are available:
l "X -Zoom": Resolution
-
1 minute
-
1 hour
-
1 day
l "S top/Start": Interrupt a recording or start a new recording
l "U nzoom": Reset the resolution to minutes
As default setting, the recording pattern has 1 minute. With the
adjustment software PACTware, this pattern can be also set to 1 hour
or 1 day.
Diagnosis/Curve selec-
tion
Diagnosis/Curve pre-
sentation
14 Indicating and adjustment module
5 Setup - Sensors up to software 3.99
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