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
Page 104 SITRANS LR260 (HART) – OPERATING INSTRUCTIONS A5E32337683
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D: Technical Reference
Loop power
Typical Connection Drawing
Allowable operating area of SITRANS LR260
Loop Voltage versus Loop Resistance
Note: Loop voltage is the voltage at the terminals of the power supply (not the
voltage at the terminals of the device).
+
-
LR260
loop resistance
RL
loop current IL
loop voltage
power
supply
0
100
200
300
400
500
600
700
800
900
1000
10.00 15.00 20.00 25.00 30.00
RL=44.6*VL - 493.4
RL=272.7*VL - 4554.1
(16.7v, 0 ohms)
(17.8v, 300 ohms)
(30.0v,845 ohms)
ALLOWABLE
OPERATING AREA
Power Supply Requirements
Loop Resistance - RL
Loop Voltage -VL