Operating Instructions

Table Of Contents
Min. detectable dis‐
tance
2)
Stainless steel 0.05 m (1.97") from end of horn
Aluminum horn,
with polypropy‐
lene lens antenna
0.2 m (7.90") from end of horn
Update time
3)
minimum 2 seconds, depending on settings for Response
Rate (2.2.7.1.) (Page 89) and LCD Fast Mode (4.3.)
(Page 103)
Influence of ambient
temperature
< 0.003%/K (average over full temperature range, refer‐
enced to maximum range)
Dielectric constant of
material measured
Minimum dK 1.6 (depending on antenna and application type)
Memory non-volatile EEPROM
no battery required
1)
From sensor reference point.
2)
See Dimensions
3)
Reference conditions: Response Rate (2.2.7.1.) (Page 89)set to FAST and LCD Fast Mode
(4.3.) (Page 103)set to ON
11.3 Interface
Analog output Signal range 4 to 20 mA (± 0.02 mA accuracy) upper limit 20 to 23 mA adjustable
Fail signal 3.6 mA to 23 mA or last value [For more details, see Fail-safe Mode] (Page 94)
Load Max. 600 Ω
Communication:
HART
Load 230 to 600 Ω, 230 to 500 Ω when connecting a coupling module
Max. line length multi-wire: ≤ 1 500 m (4 921 ft)
Protocol HART, Version 5.1
Configuration Remote Siemens SIMATIC PDM or AMS Device Manager (PC)
Local Siemens infrared handheld programmer, or HART handheld communicator
Display (local)
1)
graphic LCD, with bar graph representing level
1)
Display quality will be degraded in temperatures below –25 °C (–13 °F) and above +65 °C (+149 °F).
Technical data
11.3 Interface
SITRANS LR260 with mA/HART
126 Operating Instructions, 11/2019, A5E32337683-AD