9-2
EB 6132 EN
Servicing
Î
As the adjustment of zero and span influ
-
ence each other, recheck both zero and
span and correct them, if necessary.
After tuning is completed:
Î
Disconnect the supply voltage and pro-
tect it against unintentional reconnection.
Î
Disconnect the pressure instrument from
the pneumatic input and the measuring
instrument from the electric output.
Î
Connect the converter to the upstream
components (pneumatic line for input sig-
nal) and to the downstream control
equipment (electric line for output sig-
nal).
Î
Switch on supply voltage.
9.2
Periodic inspection and testing of the converter
We recommend inspection and testing according to Table 9-1 at the minimum.
Table 9-1:
Recommended inspection and testing
Inspection and testing
Action to be taken in the event of a negative re
-
sult
Check the markings, labels and nameplates on
the converter for their readability and complete-
ness.
Contact SAMSON when nameplates or labels are
damaged, missing or incorrect to renew them.
Clean any inscriptions that are covered with dirt
and are illegible.
Check the converter to ensure it is mounted firmly.
Tighten the any loose mounting screws.
Check air lines.
Tighten any loose connections.
Renew damaged lines.
Check the electric wiring.
Make sure that the stranded wires are pushed into
the terminals and tighten any loose screws on the
the terminals.
Renew damaged lines.
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