YOKOGAWA Rotamass series User Manual

Display deviating
General Instruction Manual
Troubleshooting
IM 01U10B00-00EN-R, 3rd edition, 2018-07-09
83 / 90
Malfunction Possible causes Remedy
Temperature dis-
played deviating
from actual tem-
perature
Temperature unit,
highest and lowest
value for temperature
set incorrectly
– Match settings of flow meter and reading
system.
– Check LRV and URV process parame-
ters, see software instruction manual.
Non-adjustable
temperature
– Check whether the Func sel parameter is
set correctly. If a fixed value is selected,
ensure that the Fix val is set correctly,
see software instruction manual.
– Set parameter Func sel to Inter val.
Analog output trim
was performed incor-
rectly
– Correctly perform trimming (see applica-
ble software instruction manual).
Connecting cable in-
correctly connected
for remote type
– Check cable connections and correct, if
necessary, see [}46].
Incorrect temperature
measurement with
remote type
– Check temperature measurement circuit
by measuring resistance between TP1/
TP2 and TP1/TP3. Each value must be
between 50 – 200 Ω.
– Check temperature measurement circuit
TP2/TP3 and make sure that resistance
is < 10 Ω.
– Connect Pt100 simulator and check
temperature measurement.
Output signal
deviating from
measured quantity
Incorrect parameter
– Check parameter LRV and URV of the
corresponding output signal, and correct,
if necessary.
Incorrect measured
quantity
– Check measured quantity output and, if
necessary, correct; check parameter Sel,
see software instruction manual.

YOKOGAWA Rotamass series Specifications

General

Brand	YOKOGAWA
Model	Rotamass series
Category	Measuring Instruments
Language	English