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Appendix
Message
Potentiometer parameter
(Code 69)
Adjustment (calibration)
parameter (Code 70)
General parameters
(Code 71)
Internal device error 1
(Code 73)
HART parameter (Code
74)
Options parameter
(Code 78)
Diagnosis parameter
(Code 80)
Diagnosis > Status messages > Extended
Air supply
Shifting working range
Leakage pneumatics
Limit working range
94
Possible reasons
Error in digital potentiometer
parameter.
Error in data from production
calibration.
Error in parameters not criti-
cal to control operation.
Internal device error
Error in HART
parameters
®
not critical to control opera-
tion.
Error in option parameters.
Error in parameters not criti-
cal to control operation.
− The supply pressure has
changed.
− The supply pressure is in-
sufficient.
− The supply pressure is
working at full capacity.
The working range has shift-
ed towards CLOSED or max.
OPEN position.
A leak in the pneumatics ex-
ists.
− The working range is limit-
ed at upper or lower
range value.
− The valve has seized up
(no change possible).
Recommended action
Confirm error. If not suc-
cessful, reset initialization
and re-initialize the posi-
tioner.
Return positioner to
SAMSON for repair.
Confirm error.
Return positioner to
SAMSON for repair.
Confirm error and change
parameter, if necessary.
Return positioner to
SAMSON for repair.
Confirm error. Perform new
reference test, if necessary.
Check supply pressure.
Rethink the working range.
Check that pneumatic in-
stallations and connections
are tight.
− Check that pneumatic
installations and con-
nections are tight.
− Check supply pressure.
− Check plug stem for ex-
ternal influences that
could be blocking it.
Status clas-
sification
Single reset
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Sec. 3.6.2
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Sec. 4.1.2
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Sec. 3.3.2
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Sec. 3.6.2
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Sec. 4.1.2
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Sec. 3.4.2
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EB 8389S EN
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