Milltronics miniranger plus - Response Issues and Screen Blanking

7ML19981CJ01 MiniRanger Plus Page 73
Troubleshooting
Symptom Cause Action
echo confidence weak,
liquid surface agitated,
material filling
electrical noise
Reading erratic
agitator blades
refer to P805, P807
decrease measurement
response P003
enable filter, echo
verification
relocate transducer*
check P807 under
quiescent conditions,
noise should be 15 dB
transducer cable must
be in grounded metal
conduit and cable
grounded only at TB-1*
enable echo
verification, P003
Reading ‘EEEE’ reading too large re-calibrate
Reading response
slow
P003 setting increase response if
possible
increase blanking Reads correctly, but
occasionally reads
high when vessel is
not full
detecting close range
echo or ringdown
increase shot
measurement
threshold, P804
transducer mounting*
High level reading
lower than material
level
material is within near
blanking zone
echo multiple being
processed
decrease blanking
P800 (limit to
transducer min range*)
or raise transducer
*refer to associated transducer manual.