Interface; Mechanical - Siemens LR250 Instruction Manual

1)
Update time
Influence of ambient temperature
Dielectric constant of material measured
• dK > 1.6 (antenna and application dependent
Memory:
• non-volatile EEPROM
• no battery required.

Interface

Analog output
• signal range
• fail signal
Communication: HART
• Load
• Max. Line Length
• Protocol
Configuration
• remote
• local
3)
Display (local)

Mechanical

Process Connections:
• threaded connection
1)
Reference conditions: Response Rate (2.4.1.) set to FAST, LCD Fast Mode (4.9.)
set to ON.
2)
For 1.5" (40 mm) antenna and 2" (50 mm) threaded PVDF antenna, the dK is limited
to 3 unless a stillpipe is used.
3)
Display quality will be degraded in temperatures below –25 °C (–13 °F) and above
+65 °C (+149 °F).
4)
For use with 1.5" (40 mm) horn antennas only.
7ML19985JE06
minimum 1 second, depending on settings for
Response Rate (2.4.1.) and LCD Fast Mode (4.9.)
< 0.003%/K (average over full temperature range,
referenced to maximum range)
4 to 20 mA (
upper limit 20 to 23 mA adjustable
3.6 mA to 23 mA (see
more details)
230 to 600 230 to 500 when connecting a coupling
module
multi-wire:  1500 m (4921 ft)
HART, Version 5.1
Siemens SIMATIC PDM or AMS Device Manager (PC)
Siemens infrared handheld programmer, or HART
handheld communicator
graphic LCD, with bar graph representing level
1.5" NPT (ASME B1.20.1), R (BSPT, EN 10226-1)
G (BSPP , EN ISO 228-1)
or 2" NPT (ASME B1.20.1), R (BSPT, EN 10226-1) or
G (BSPP , EN ISO 228-1)
or 3" NPT (ASME B1.20.1), R (BSPT, EN 10226-1) or
G (BSPP , EN ISO 228-1)
SITRANS LR250 (HART) – INSTRUCTION MANUAL
2)
)

0.02 mA accuracy)
Fail-safe Mode
on page 138 for
4)
or
Page 9