User's Manual
Table Of Contents
- Table of Contents
- SITRANS LR250 Overview
- Specifications
- Installation
- Wiring
- Operating via the handheld programmer
- Operating via SIMATIC PDM
- Functions in SIMATIC PDM
- Quick Start Wizard via SIMATIC PDM
- Changing parameter settings using SIMATIC PDM
- Parameters accessed via pull-down menus
- Operating via AMS Device Manager
- Functions in AMS Device Manager
- Features of AMS Device Manager
- Device Description (DD)
- Configuring a new device
- Startup
- Pull-down menu access
- Device configuration
- Quick Start Wizard via AMS Device Manager
- Maintenance and Diagnostics
- Remaining Device Lifetime [see Remaining Device Lifetime (4.2.) on page 99]
- Remaining Sensor Lifetime [see Remaining Sensor Lifetime (4.3.) on page 102]
- Service Schedule [see Service Schedule (4.4.) on page 105]
- Calibration Schedule [see Calibration Schedule (4.5.) on page 108]
- Electronic Temperature
- Wear (see Wear on page 56)
- Communication
- Security
- Device Diagnostics
- AMS Menu Structure
- Functions in AMS Device Manager
- Parameter Reference
- 1. Quick Start
- 2. Setup
- 3. Diagnostics
- 4. Service
- 5. Communication
- 6. Security
- 7. Language
- Appendix A: Alphabetical Parameter List
- Appendix B: Troubleshooting
- Appendix C: Maintenance
- Appendix D: Technical Reference
- Principles of Operation
- Echo Processing
- Analog Output
- Maximum Process Temperature Chart
- Process Pressure/Temperature derating curves
- Loop power
- Appendix E: Application Examples
- Appendix F: HART Communications
- Appendix G: ATEX Certificates
- Appendix H: Firmware Revision History
- Glossary
- Index
- LCD menu structure
Page 106 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE03
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Parameters
Time Units
4.4.1. Service interval
User-configurable recommended time between product inspections
.
4.4.2. Time since Last Service
Time elapsed since last service. Can be reset to zero after performing a service.
To reset to zero:
• In SIMATIC PDM, open the menu Device – Maintenance, click on the
Service Schedule tab, and click on Service Performed to restart the timer
and clear any fault messages.
• Via the handheld programmer, manually reset Time since Last Service
(4.4.2.) to zero.
Options
a)
a)
Selectable only via SIMATIC PDM.
Hours; days; years
Default: years
Note: The device always operates in years. Changing the units affects only
the parameter view of the Service Interval parameters in SIMATIC PDM.
Values
Units
a)
: hours, days, years
a)
Units are selectable only via SIMATIC PDM.
Range: 0 to 20 years
Default: 1.0 year