300-R010-45G Datasheet, PDF (33/36 Pages) Magnetrol International, Inc. – Echotel® Model 300/301 Ultrasonic Non-Contact Transmitter For Level/Volume/Open Channel Flow

TROUBLESHOOTING cont.
Following are troubleshooting displays which could appear on the Model 300/301.
Display
FACT PARAM FAIL
TAG LINE LOSS
SYS PARAM FAIL
STRAP TABLE FAIL
FV PARAM FAIL
LOOP PRESET FAIL
RELAY PARAM FAIL
LOOP PARAM FAIL
TRANSDUCER FAIL
NO TRANSDUCER
OR
BAD TRANSDUCER
ECHO LOSS
RINGDOWN
TEMPERATURE FAIL
INVALID PASSWORD
LOOP OUT RANGE
Cause
Solution
The factory parameters dealing
Press ENT to continue. This loads the default values for the
with level measurement are corrupt. factory parameters.
The tag line characters are corrupt.
Press ENT to continue. This loads the default tag line into long-term
memory. If you are using a custom tag line, the tag line must be
re-entered.
The main parameters, which store
range, span, and communications,
etc. are corrupt.
Press ENT to continue. This loads default values for the main
parameters. Verify all of the items in the System Config menu.
There is an error in the custom
table (linear or spline) entry.
Press ENT to continue; the table is cleared. If a custom table is not
being used, then this error can be ignored. If you are using a custom
table, the table has to be re-entered.
The flow or volume parameters
are corrupt.
Reconfigure flow and volume settings.
The loop presets are corrupt.
The loop will have to be recalibrated in the Advance Config menu
under Adjust Loop Points.
The parameters for Relays
are corrupt.
Press ENT to continue. The relays are disabled, and the settings are
set to default values. Reconfigure the relays from the I/O Config menu.
The 4–20 mA loop parameters
are corrupt.
Press ENT to continue. The loop is disabled and the settings are set
to default values. Reconfigure the 4-20 mA from the I/O Config menu.
The unit was not able to detect a
transducer connected or was not
able to determine the transducer’s
frequency.
Ensure that the transducer is connected properly to the unit. Try
replacing the transducer. Return the unit for repair.
The unit is not able to detect a
return signal from the transducer.
Ensure that the level to be detected is within the range and span of
the unit. Check the application for foam, obstructions, or heavy
vapors.
The transducer is ringing long
Try decreasing the span to increase the dead band (range minus span)
enough to ring into the level span of of the unit. Try replacing the transducer because the current trans-
the unit.
ducer may have a problem that causes it to ring an extra long time.
The signal from the temperature
transducer in the transducer is out
of range. Either a short or open lead
detected.
Check to see that the transducer wires are connected properly. Ensure
that the transducer wires are not shorted or open.
The password entered is not valid. Retry the previous operation and enter the proper password.
The calculated value for the loop
output is greater than 20 mA or
less than 4 mA. The loop output will
be in its fail-safe mode.
If the level is within a normal operating range, adjust the loop
parameters to allow proper tracking of the level.
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