BD_BE 725
25
Betriebsanleitung/Operating instructions
Failure
Possible cause
Procedure
Signal span dropping off/too small
Diaphragm is damaged, e.g. through
impact, abrasive/agressive media;
corrosion of diaphragm/pressure
connector; transmission luid missing.
Contact the manufacturer and replace
the instrument
Signal span drops off
Moisture present (e.g. at the cable tail) Install the cable correctly
Signal span erratic or incorrect
Working temperature too high/too low
Ensure permissible temperatures as
per the Operating Instructions
Abnormal zero point signal
Medium or ambient temperature too
high/too low
Control the internal temperature of
the instrument within the permissible
range; observe the allowable tempera-
ture error (see Operating Instructions)
Diaphragm is damaged, e.g. through
impact, abrasive/agressive media;
corrosion of diaphragm/pressure
connector.
Replace instrument
Working temperature too high/too low
Ensure permissible temperatures as
per the Operating Instructions
Zero point signal unstable/ too low/high Moisture present (e.g. at the cable tail)
Install the cable correctly,
ilter element insertion
Hot instrument case surface
Permissible ambient or medium tempe-
rature exceeded
Ensure permissible ambient/medium
temperature limits are observed (see
Operating Instructions)
9. Trouble shooting
GB
In case of unjustiied reclamation we charge the reclamation handling expenses.
*) Make sure that after the assembly the unit is working properly. In case the error continues to exist send in the instrument for
reparation (or replace the unit).
