User's Manual
Table Of Contents
- Table of Contents
- SITRANS LR260 Overview
- Specifications
- Installation
- Wiring
- Quick Start via local operation
- Operating via SIMATIC PDM
- Parameter Reference
- Pull-down menus via SIMATIC PDM
- Quick Start Wizard
- 1. Quick Start
- 2. Setup
- 3. Diagnostics
- 3.1. Echo Profile
- 3.14. Measured Values (MEAS. VALUES)
- 3.15. Remaining Device Lifetime (REMAIN. DEV. LIFE.)
- 3.15.2. Remaining Device Lifetime (REMAIN. LIFETIME)
- 3.15.3. Maintenance Required Limit (MAINT. REQ. LIMIT)
- 3.15.4. Maintenance Demanded Limit (MAINT. DEM. LIMIT)
- 3.15.5. Maintenance Alert Activation (ALERT ACTIVATION)
- 3.15.6. Total Expected Device Life (TOTAL EXP. LIFE)
- 3.15.7. Maintenance Status (MAINT. STAT.)
- 3.15.8. Acknowledge Status (ACK STATUS)
- 3.15.9. Acknowledge (ACK)
- 3.16. Remaining Sensor Lifetime (REMAIN SENS. LIFE.)
- 3.16.2. Remaining Sensor Lifetime (REMAIN. LIFETIME)
- 3.16.3. Maintenance Required Limit (MAINT. REQ. LIMIT)
- 3.16.4. Maintenance Demanded Limit (MAINT. DEM. LIMIT)
- 3.16.5. Maintenance Alert Activation (ALERT ACTIVATION)
- 3.16.6. Total Expected Sensor Life (TOTAL. EXP. LIFE)
- 3.16.7. Maintenance Status (MAINT. STATUS)
- 3.16.8. Acknowledge Status (ACK. STATUS)
- 3.16.9. Acknowledge (ACK.)
- 4. Service
- 4.1. Device Reset
- 4.2. Manufacture Date (MANUF. DATE)
- 4.3. LCD Fast Mode
- 4.4. LCD Contrast
- 4.11. Memory Test (MEM. TEST)
- 4.16.1. Time Last Serviced (TIME LAST SERV.)
- 4.16.2. Remaining Lifetime (REMAIN LIFETIME)
- 4.16.3. Maintenance Required Limit (MAINT. REQ. LIMIT)
- 4.16.4. Maintenance Demanded Limit
- 4.16.5. Maintenance Alert Activation
- 4.16.6. Total Service Interval
- 4.16.7. Maintenance Status (MAINT. STAT)
- 4.16.8. Acknowledge Status (ACK. STATUS)
- 4.16.9. Acknowledge (ACK.)
- 4.17. Calibration Interval (CALIB. INTERVAL)
- 4.17.1. Time Last Calibrated (TIME LAST CAL.)
- 4.17.2. Remaining Lifetime (REMAIN LIFETIME)
- 4.17.3. Maintenance Required Limit (MAINT. REQ. LIMIT)
- 4.17.4. Maintenance Demanded Limit (MAINT. DEM. LIMIT)
- 4.17.5. Maintenance Alert Activation
- 4.17.6. Total Calibration Interval (TOTAL CALIB. INTRV.)
- 4.17.7. Maintenance Status (MAINT. STAT.)
- 4.17.8. Acknowledge Status (ACK. STATUS)
- 4.17.9. Acknowledge (ACK.)
- 5. Communication
- 6. Security
- 7. Language
- Appendix A: Alphabetical Parameter List
- Appendix B: Troubleshooting
- Appendix C: Maintenance
- Appendix D: Technical Reference
- Appendix E: Application Example
- Appendix F: HART Communications
- Appendix G: Firmware Revision History
- Glossary
- Index
- LCD menu structure
A5E32337683 SITRANS LR260 (HART) – OPERATING INSTRUCTIONS Page 115
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Glossary
Glossary
accuracy: degree of conformity of a measure to a standard or a true value.
algorithm: a prescribed set of well-defined rules or processes for the solution of a problem in a
finite number of steps.
ambient temperature: the temperature of the surrounding air that comes in contact with the
enclosure of the device.
antenna: an aerial which sends out and receives a signal in a specific direction. There are four
basic types of antenna in radar level measurement, horn, parabolic, rod, and waveguide.
attenuation: a term used to denote a decrease in signal magnitude in transmission from one
point to another. Attenuation may be expressed as a scalar ratio of the input magnitude to
the output magnitude or in decibels.
Auto False-Echo Suppression: a technique used to adjust the level of a TVT curve to avoid the
reading of false echoes. (See TVT.)
Auto False-Echo Suppression Distance: defines the endpoint of the TVT distance. (See TVT.)
This is used in conjunction with auto false echo suppression.
beam width: the angle diametrically subtended by the one-half power limits (-3 dB) of the
microwave beam.
beam spreading: the divergence of a beam as it travels through a medium.
blanking: a blind zone extending away from the reference point plus any additional shield
length.The instrument is programmed to ignore this zone.
capacitance: the property of a system of conductors and dielectrics that permits the storage of
electricity when potential differences exist between the conductors. Its value is
expressed as the ratio of a quantity of electricity to a potential difference, and the unit is a
Farad.
confidence: see Echo Confidence: describes the quality of an echo. Higher values represent
higher quality. Confidence threshold defines the minimum value.
damping: term applied to the performance of an instrument to denote the manner in which the
measurement settles to its steady indication after a change in the value of the level.
dB (decibel): a unit used to measure the amplitude of signals.