Siemens HydroRanger 200 Instruction Manual Page 237

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  • TROUBLESHOOTING
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7ML19981FC01 HydroRanger 200 – INSTRUCTION MANUAL Page 223
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Appendix C: Troubleshooting
Displaying Echo Confidence in the RUN mode
Press and hold for four seconds (Failsafe Time Left changes to the Short:Long
Confidence display).
To display Echo Confidence in the program mode, access the Echo Confidence (P805)
parameter.
To update the value displayed after each aiming adjustment..
Press (five times or more to verify stability and overcome any echo lock P711).
Increase Failsafe Timer Value
Increase the Failsafe Timer (P070) value, if failsafe operation will not be compromised by
the larger value.
Try this only if LOE shows for short periods of time.
Install a Transducer with a Narrower Beam
Sometimes the interference echoes from the sides of a vessel can cause the
HydroRanger 200 to lock onto a consistent, incorrect level. Try installing a longer range
(narrower beam) transducer, enter the new transducer model (P004), and (if necessary)
optimize aiming and frequency again.
Always contact your Siemens Milltronics service personnel before selecting a transducer
to solve this type of problem.
Use Dolphin Plus to Debug Echo
If a narrower beam transducer is not available, use Dolphin Plus to view live sonic
profiles and make adjustments to the Advanced Echo Processing parameters.
If you do not own Dolphin Plus, connect an oscilloscope and use the hand programmer to
adjust the same parameters. (See P810: Scope Displays.)
Fixed Reading
If the Reading is a fixed value, regardless of the transducer to material surface distance,
ensure the:
1. Transducer acoustic beam is free from obstruction.
2. Transducer is properly aimed
3. Transducer is not in contact with any metal object.
4. Material mixer (if used) is operating while the HydroRanger 200 is operating. If it is
stopped, ensure that the mixer blade is not stopped under the transducer.
Obstructions in the Sound Beam
Check for (and remove if present) any acoustic beam obstruction, or relocate the
transducer.
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