Siemens 200 Appendix C Troubleshooting, Common Problems Chart, Symptom Cause Action

Appendix C: Troubleshooting

Note: Many of the parameters and techniques described here require extensive knowledge of ultrasonic technologies and Siemens Milltronics echo processing software. Use this information with caution.

If the setup becomes too confusing use P999 to reset and start again.

Common Problems Chart

Symptom	Cause	Action
Display blank, transducer	No power.	Check power supply, wiring, or
not pulsing.		power fuse.
		Check programmer usage:
No response to program-	Obstructed infrared interface,	15 cm (6”) from faceplate
mer.	defective programmer.	pointed at upper target.
	Short circuited transducer cable,
Displays Short and tb:(#).	or defective transducer at indi-	Repair or replace as necessary.
	cated terminal block number.
	Transducer not connected or con-	Check connection to displayed ter-
Displays Open and tb:(#).	nection reversed.	minal blocks.
	Open circuited transducer cable,
	or defective transducer at indi-	Repair or replace as necessary.
	cated terminal block number.
		Relocate and/or re-aim transducer
Displays LOE.	Weak or non-existent echo.	at material.
		Proceed to Measurement Difficul-
		ties.
	Wrong transducer selected	Verify transducer type and re-enter
	(P004).	value.
Displays Error and tb:(#).	Transducer connected in “two	Do not tie white and shield together.
	wire” method.	Use all three terminal blocks.
	Transducer connected back-	Reverse black and white wires on
	wards.	terminal block.
Displays EEEE	Value too large to display in 4 or 5	Select larger Units (P005), or lower
	characters.	Convert Reading (P061).
Reading fluctuates while	Incorrect measurement stabiliza-	Alter Maximum Process Speed
material level is still (or	tion.	(P003) or damping (P704) accord-
vice versa).		ingly. See Maximum Process Speed.
Reading is fixed, regard-	Transducer acoustic beam	Relocate and / or re-aim transducer
		at material level or object.
less of the actual mate-	obstructed, standpipe too nar-
		Proceed to Measurement Difficul-
	row, or transducer ringing (reads
rial level.	over 100%).	ties below.
		See also: Transducer Ringing.
Material level reported is	Incorrect Empty (zero) reference	See Empty (P006), Reading Offset
always incorrect by the	for level operation	(P063), Offset Calibration (P650), &
same amount.	(P001 = 1).	Offset Correction (P652).
Measurement accuracy	Incorrect Sound Velocity used for	Use a transducer with a built-in tem-
		perature sensor or a TS-3 tempera-
improves as level nears
transducer.	distance calculation.	ture sensor.
		See Sound Velocity.
Reading is erratic, with	True echo too weak or wrong	Relocate and / or re-aim transducer
		at material.
little or no relation to
	echo being processed.	Check noise parameters. See Noise
material level.
		Problems.

Appendix C: Troubleshooting

7ML19981FB06 MultiRanger 100/200 – INSTRUCTION MANUAL Page 231