E-888-5-E
5
9. TROUBLESHOOTING
Reminder: If internal trouble is suspected, seek our service at the nearest sales office or
customer service representative in your area.
CAUTION: Once any printed circuit board(s) of the internal assembly has been
removed for servicing, do not fail to reestablish all parameters in the
SET mode.
Symptom
Check
Possible Causes
Display is dead.
. Inspect fuse.
. Make sure of power source voltage.
. Fuse is blown.
. Line voltage is improper.
. A fault in internal assembly.
Faulty temperature indication.
Erratic reading
Error messages
TEMP (PT) OVER
or TEMP (PT) UNDER
or TEMP (ANA) OVER
or TEMP (ANA) UNDER
. Input signal line correctly wired?
. Input signal specifications
matched?
. System configured correctly?
. Temperature range set correctly?
. Input wiring is incorrect.
. Thermometer resistance bulb is
open or shorted.
. Temperature converter is faulty.
. A fault in internal assembly.
Faulty indication of meter error
correction factor and/or
temperature correction factor.
. Viscosity, liquid kind, and density
values set with key cards?
. Temperature reading correct?
. Using key cards, set up
viscosity, liquid kind, and
density values.
※
. A fault in internal assembly.
While
fluid is
allowed
to flow.
Fails to count pulses;
fails to produce a pulse
output.
. Input signal line correctly wired?
. Pulse signal coming in?
. Pulse generator specifications
matched?
. Incorrect input wiring.
. Pulse generator itself is faulty.
. A fault in internal assembly.
Faulty total counter
reading.
. Temperature reading correct?
. Meter error and Temperature correc-
tion factor indications correct?
. Pulse generator itself is faulty.
. A fault in internal assembly.
Error messages
A/D CONVERT ERROR
or DENSITY CONVERT ERROR
or mA SCALER UNDER
(Same also with SCALER .)
. A fault in internal assembly.
Error message
SCALER OVER
(Same also with SCALERS and .)
. Parameters reconfigured correctly?
. A fault in internal assembly.
Display fails to respond to card
insertion (it remains unchanged).
. Data in the card is lost.
. Battery in the card has run out.
. Card is defective.
Table .
NOTE :
※
Whenever meter error correction settings which are dependent on fluid velocity and
viscosity are modified, do not fail to set up liquid kind, viscosity, and density, using key
cards, following the modification.
Unless setting up using key cards is done as described above, your reconfiguration will not
be finalized.
