7ML19985QD82 MultiRanger – QUICK START MANUAL Page EN-9
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English
Troubles hoot ing
Symptom Cause Action
Display blank, transducer
not pulsing.
No power.
Check power supply, wiring, or power
fuse.
No response to program-
mer.
Obstructed infrared interface, defec-
tive programmer.
Check programmer usage:
15 cm (6”) from faceplate pointed at
upper target.
Displays
Short
and
tb:(#)
Short circuited transducer cable, or
defective transducer at indicated ter-
minal block number.
Repair or replace as necessary.
Displays
Open
and
tb:(#)
Transducer not connected or connec-
tion reversed.
Check connection to displayed terminal
blocks
Open circuited transducer cable, or
defective transducer at indicated ter-
minal block number.
Repair or replace as necessary.
Displays
LOE
. Weak or non-existent echo.
Relocate and/or re-aim transducer.
Proceed to Measurement Difficulties.
Displays
Error
and
tb:(#)
Wrong transducer selected (P004). Re-enter correct transducer type.
Transducer connected in “two wire”
method.
Do not tie white and shield together, use
all three terminal blocks.
Transducer connected backwards.
Reverse black and white wires on termi-
nal block.
Displays
EEEE
.
Value too large to display in 4 or 5
characters.
Select larger Units (P005), or lower Con-
vert Reading (P061).
Reading fluctuates while
material level is still (or vice
versa).
Incorrect measurement stabilization.
Alter Maximum Process Speed (P003) or
damping (P704).
Reading is fixed, regard-
less of the actual material
level.
Transducer acoustic beam obstructed,
standpipe too narrow, or transducer
ringing (reads over 100%).
Relocate and / or re-aim transducer at
material level or object.
Go to Measurement Difficulties below.
See also: Transducer Ringing.
Material level reported is
always incorrect by the
same amount.
Incorrect Empty (zero) reference for
level operation (P001 = 1).
See Empty (P006), Reading Offset (P063),
Offset Calibration (P650), and Offset Cor-
rection (P652).
Measurement accuracy
improves as level nears
transducer.
Incorrect Sound Velocity used for dis-
tance calculation.
Use transducer with built-in temperature
sensor or a TS-3 temperature sensor.
See Sound Velocity.
Reading is erratic, with little
or no relation to material
level.
True echo too weak or wrong echo
being processed.
Relocate and / or re-aim transducer.
Check noise parameters.
Note: Please refer to the complete Instruction Manual for further information.
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