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Event
Fault
Solution
General operation
The device is not accurate for
measuring materials with high
dielectric constants (
r
).
There is a constant offset when
measuring.
The tank height setting is incorrect.
Check the tank height and the parameters.
If the device has been replaced, check that the factory parameters are the same as the original!
Contact HYCONTROL to access the factory menu!
The device indicates an inaccurate
level value.
The device does not detect the actual
measurement signal.
Check for the presence of components that interfere with the interior of the tank.
If the received signal is close to the tank connection, increase the ratio of the detection delay to the
dead zone equally, or increase the threshold over the entire measuring range if the full measuring
range is important. In all cases, use the oscilloscope function of HyView to visualize the phenomena.
The threshold should be set to obscure interference, but with sufficient margin to detect the useful
signal. The reflected pulse image (same as the start signal) may be too large if the probe touches the
tank wall or neck (see 1.3.5). Disconnect!
The device does not measure
accurately when there are two or
more layers in the tank.
The device may not be properly
programmed for this application and will
measure the interface layer instead of the
level.
Make sure that “2 liquids, 1 level” is set to “2 liquids, 1 level” in the “Application” tab of the “Device
Programming” window.
Also check that the top layer is at least 100 mm (0.33 ft) from the measured material.
Contact HYCONTROL for the correct setting.
Event
Fault
Solution
Electrical connection and communication output
Current output value < 4 mA
No power supply
Check the power supply.
Device is not connected properly.
Check the connection between the device and the power supply.
The output current setting is incorrect.
Perform the calibration if you have permission to do so, or contact HYCONTROL.
Display says the current output value
is 22 mA
There is an error.
This occurs when 4
–
20 mA / error 22 mA are programmed.
Check the
status of the device during polling in the “Device status” window (or in the Markers
diagram) or the status menu (4.0) on the HART® communicator.
The device is booting.
Wait 50 seconds!
If the current jumps between 4 and 20 mA and immediately goes back to 22 mA, contact
HYCONTROL.
The status of the current output is not
the same as the value on the display
on the HyView or HART®
communicator.
The output current setting is incorrect.
Check the current loop and connections.
Set the output as described in the User Manual and try to change the threshold using HyView -
Oscilloscope diagram / Threshold settings or the HHC communicator.
Data transmission via the digital
interface does not work.
The machine is in the process of being
set up, wait 50 seconds and try again.
The communication parameters are not
set correctly on the computer.
Check the computer settings (address / device number).
Bad connection to interface
Check the connection.
Device current < 4 mA.
If the problem persists, contact HYCONTROL.
Device current = 22 mA
