SYMPTOM CAUSE ACTION
. . . continued transducer location
or aiming :
- poor installation
- moved by material or
vibration
- flanging not level
re-locate or re-aim
transducer for maximum
echo confidence, P-80 *
transducer malfunction
- temperature too high or
low
- physical damage
- excessive foam on
liquid face
check P-65, 66 & 67
inspect
use foam deflector or
stilling well
Reading does not change,
but the level does
MultiRanger Plus
processing wrong echo,
i.e. vessel wall, structural
member, stationary
agitator, material hang-up
or rat-tailing
re-aim transducer *
check echoes with
oscilloscope
transducer ringing, reading
high level
transducer must not be in
contact with metal *
mounting need only be
hand tight *
increase blanking, P-5
check echoes with
oscilloscope
raise short measurement
confidence threshold, P-81
Measurement is
consistently off by a
constant amount
measurement offset refer to P-60 & 62
and the volume
application example
Reading error
progressively worsens with
distance
temperature
compensation
sound velocity
compensation
insure that ‘J2’ is properly
set, refer to Installation \
Selecting Temperature
Sensor
P-61 & 63, and the volume
application example
Screen blank,
neon L1 not flashing
loss of power check power wiring,
jumpers and fuse.
*
refer to associated transducer manual
PL-443 8 – 4
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