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Figure 19 False Echo Learning Interface
For example, if there is an interference signal within 2m-4m from the instrument, a new TVT
curve is needed to suppress the interference:
(1) Select "Select area" in [False echo mode].
(2) Set the start of the [false echo area] to 2m and the end of the [false echo area] to 4m.
(3) In [False echo learning], select "New", confirm and wait for the "ok" prompt, indicating that the
new TVT curve is successful.
9 Precautions
9.1 Make sure that the power supply is safe and reliable, that the power supply is connected in
accordance with the correct positive and negative poles, and that the grounding terminal of the
meter head is reliably earthed.
9.2 When installing the radar level meter, please take care not to install it above the material flow,
if this cannot be avoided, it is recommended to install a wave guide or bypass tube to facilitate
measurement.
9.3 When installing, ensure that the radar antenna is perpendicular to the surface of the
measured medium, connect the radar to the tank flange and tighten the fixing screws using a
tool.
9.4 The operating temperature range of the electronic components is -40°C to +70°C and the
temperature range of the LCD display is -20°C to +70°C (outside the range the LCD does not
display, remote transmitter is normal).
9.5 Tighten the display and power supply cover after configuration to prevent the instrument from
getting water and moisture.
10 Fault Analysis and Troubleshooting
When the instrument fails, a fault code is displayed on the instrument LCD and there may
be multiple faults occurring together, e.g. 0003, indicating states 2 and 3 together.
Serial No
Fault Code
Meaning
1
0000
The instrument is operating
correctly
2
0001
No valid echoes found within the
given range
3
0002
Communication exception with
TR
4
0004
No factory threshold learning
5
0008
4-20mA Abnormal current
output
6
0010
Current manual output
7
0020
LCD Communication anomalies
8
0040
TR board Connection anomalies
9
0080
Signal processing clock
exception
10
0100
Processor hardware errors
11
0200
Abnormal temperature sensor
12
0400
Processor acquisition exceptions
11 Disassemble
11.1 Warning
Before disassembling, pay attention to dangerous process conditions, such as pressure, high
temperature, corrosive or toxic media in the container, etc.