7ML19985XN82
SITRANS LR250 (FF) – QUICK START MANUAL
Page EN-3
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Specifications
For a complete listing, see the SITRANS LR250 (FF) Operating Instructions manual. For
Approvals information, please refer to the process device tag.
Ambient/Operating Temperature
Power
• Bus powered 9-32 V DC, per IEC 61158-2 (Foundation Fieldbus)
• Current consumed: 20 mA
Approvals
• General
CSA
US/C
, CE, FM, NE 21, C-TICK, KC
• Radio
FCC, Industry Canada and Europe ETSI EN 302-372
Notes:
• The maximum temperature is dependent on the process connection, antenna materials,
and vessel pressure: see
Wiring Setups for hazardous area installations
on page 9. For
more detailed information see Process Pressure/Temperature derating curves in the full
manual.
• Process temperature and pressure capabilities are dependent upon information on the
process connection tag. The reference drawing listed on the tag is available on the
product page of our website at www.siemens.com/LR250, under More Info/Installation
drawings/Level Measurement/Installation Drawings/LR250. Additional information on
process connections is available on the Installation Drawings page under Process
Connection Diagrams.
• Signal amplitude increases with antenna diameter, so use the largest practical size.
• Optional extensions can be installed below the threads.
• See
Maximum Process Temperature Chart
on page 24, for more details.
General Purpose:
Intrinsically Safe:
Non-Sparking/Energy Limited:
Non-incendive:
9-32 V DC
Notes:
• The device nameplate lists the approvals that apply to your device.
• Use appropriate conduit seals to maintain IP or NEMA rating.
process temperature at process connection:
standard horn antenna:
- with FKM O-ring: –40
o
C to +200
o
C (–40
o
F to +392
o
F)
- with FFKM O-ring: –20
o
C to +200
o
C (–4
o
F to +392
o
F)
2" NPT / BSPT / G Threaded PVDF antenna:
−
40 to +80 °C (
−
40 to +176 °F)
ambient temperature
(surrounding enclosure)
–40 °C to 80 °C (–40 °F to 176 °F)
device
nameplate
process
connection
tag
