805-501A-111 Datasheet, PDF (21/36 Pages) Magnetrol International, Inc. – KOTRON® MODEL 805 SMART RF LEVEL TRANSMITTER

3.3.1 Troubleshooting System Problems
Symptom
OUTPUT signal always
at 4 mA.
LEVEL, % OUTPUT and LOOP values
are all inaccurate.
LEVEL readings are repeatable but
consistently high or low from actual
by a fixed amount.
LEVEL, % OUTPUT and LOOP
values fluctuate.
LOOP value jittery, usually in tenths
or hundredths digit.
HART device only: handheld will only
read Universal Commands.
HART device only; reads Product
information (e.g., Mfgs. ID, Device #,
Serial #, etc.) but will not read any
process variables.
Problem
HART Poll address
is not 0.
Basic configuration data is
questionable.
Configuration data does not
accurately match tank height.
Turbulence.
Factory settings corrupted.
Most current Device Descriptors
(DDs) are not installed in handheld
Early HART software does not
account for Mfgs. ID #’s greater
than 63. Magnetrol’s ID is 86.
Solution
Change HART Poll Address to 0.
See Secion 2.6.4, Step 14.
Check values and recalibrate if
necessary (either or both points).
Recalibrate if necessary.
Increase the Damping factor until the
readings stabilize.
Check # of Ticks. If the number is
also jittery, consult the Factory.
Contact local HART service center for the
latest DDs.
Contact manufacturer of your HART
master software for upgrade. This is a
shortcoming of early HART master
software.
3.3.2 Error Messages
Symptom
805 FAULT
(Open)
805 FAULT
(Shorted)
OSC FAIL
(HART error code = 0x40)
ABV RNG
CORRUPT PARAMTRS
(HART error code = 0x10)
SFWR ERROR
LEVEL
(Uncal)
Problem
Open probe.
Shorted probe.
Malfunctioning analog board and/or
32 pin connector.
Above range.
Configuration parameters may
have been lost.
Software error.
Unit is not calibrated.
Solution
Check probe wiring and electronics
module connector.
Check probe wiring and integrity of
insulated probe in conductive liquid.
Check connection between boards and
replace electronic module if necessary.
Measured capacitance > 12,000 pF.
Contact factory.
Check all Configuration parameters and.
recalibrate if necessary.
Bad internal state, unexpected condition.
Contact factory.
Make sure that both Lo Cal and Hi Cal
points have been entered.
50-660 Kotron Model 805 Smart RF Level Transmitter
18