What to do if my Siemens Control Systems display is blank?
If the display is blank, the transmit neon isn't flashing, and the transducer isn't pulsing, the cause may be no power. Check the power supply, wiring, and voltage selection switch.
Why does my Siemens Control Systems display "EEEE"?
If your Siemens Control Systems display shows "EEEE", it indicates that the reading is too high. To resolve this, select larger units (P005) or lower the Convert Reading value (P061).
What to do if Siemens Control Systems displays "Error" and "tb:(#)"?
If the display shows "Error" and "tb:(#)", it means that the transducer is connected incorrectly or the wrong transducer (P004) is being used. Try reversing the BLK and WHT wires. If that doesn't work, enter the correct value for the transducer.
What causes a Siemens Control Systems reading to fluctuate when the material level is still?
Fluctuating readings while the material level is still (or vice versa) indicate incorrect measurement stabilization. To fix this, alter the Measurement Response (P003) accordingly.
What does "LOE" mean on my Siemens Control Systems display and how to fix it?
If the display shows "LOE", it indicates a weak or non-existent echo. You should relocate and/or re-aim the transducer at the material level or object.
What to do if Siemens Control Systems displays "Open" and "tb:(#)"?
If the display shows "Open" and "tb:(#)", it could mean the transducer is not connected, there is an open circuited transducer cable, or the transducer is defective. First, connect the transducer or remove the Point # from service (P001=0). If that doesn't work, repair or replace the transducer cable or the transducer as necessary.
Why is my Siemens Control Systems reading fixed, regardless of the material level?
If the reading is fixed regardless of the actual material level, it could be that the transducer beam is obstructed, the standpipe is too narrow, or the transducer mounting is resonant. Relocate and/or re-aim the transducer at the material level or object.
Why is my Siemens Control Systems measurement accuracy better when the level is near the transducer?
If measurement accuracy improves as the level nears the transducer, it indicates an incorrect sound velocity used for distance calculation. Use an ultrasonic/temperature transducer or a TS-3 temperature sensor.
What to do if Siemens Control Systems displays "Short" and "tb:(#)"?
If the display shows "Short" and "tb:(#)", it indicates a short-circuited transducer cable or a defective transducer. Repair or replace the cable or transducer as necessary.
How to fix a Siemens Control Systems reading that is always off by the same amount?
If the material level reported is always "off" by the same amount, it indicates an incorrect Empty (zero) reference. See Empty (P006), Reading Offset (P063), Offset Calibration (P650), & Offset Correction (P652).
General| Brand | Siemens |
|---|---|
| Model | sitrans LU10 |
| Category | Control Systems |
| Language | English |
Details the SITRANS LU10's design, ultrasonic measurement capabilities, and applications.
Highlights key fixed features like enclosure and display, and programmable features.
Recommendations for choosing an ideal mounting location and instructions for mounting the unit.
Information on installing optional cards, connecting system components, and making power connections.
Steps to enter PROGRAM mode and change parameter values using direct or scroll access.
Steps to verify system programming and performance before operating process control equipment.
Parameters to alter SITRANS LU10 display, failsafe, relay, and mA output operation.
Parameters for altering operation to suit preferences or overcome measurement difficulties.
Parameters for compensating measurement offset and verifying measurements against fluctuations.
Examples demonstrating SITRANS LU10 feature usage for specific process requirements.
SITRANS LU10 digital output via Peripheral Communications for BIC-II.
What to do if 'LOE' is displayed or if the unit locks onto a false echo.
Steps to troubleshoot when the Reading is fixed or erratic.
Summarizes power, environmental, accuracy, and communication specifications.
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