User's Manual

Page 6 SITRANS LR 400 – INSTRUCTION MANUAL 7ML19985FH04
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Specifications
Specifications
SITRANS LR 400
Power
• Power Supply 120 to 230 V AC, ±15%, 50/60 Hz, 6W (12VA) or
24 V DC, +25/-20%, 6W
Power failure: bridge of at least 1 mains period (> 20 ms)
Fuse
• Fuse (both AC and DC versions)
SI1 Fast acting ceramic, 4 x 20 mm, 1A, 250 V AC
SI2 Slow-Blow, 4 x 20 mm, 0.63 A, 250 V AC
Performance
Measured value error (under reference conditions)
• Measuring error ≤ ± 5 mm at 1 to 10 m distance
≤
± 15 mm at 10 to 45 m distance
• Dead zone 0 to 350 mm from bottom edge of flange
• Additional contribution of ≤ 0.1% of the measured value
analog output ≤ 0.05 % of full scale
• Long-term stability ≤
± 1 mm/year
• Repetitive accuracy ≤
± 1 mm at 0 to 45 m, damping ≥ 1 s
Interface
• Analog output (Not applicable to PROFIBUS PA option)
Signal range 4 to 20 mA
Upper Limit 20 to 22.5 mA adjustable
Fail signal 3.6 mA; 22 mA; 24 mA or last value
Load Max. 600 Ω; for HART®
1
communication min. 230 Ω
• Digital output
Function Configurable as a device status or limit value
(level, volume, mass)
Note: Siemens Milltronics makes every attempt to ensure the accuracy of these
specifications, but reserves the right to change them at any time. Please ensure
these are the most recent specifications. Contact your representative, or check our
web site at www. siemens.com/milltronics
for the most up-to-date information.
1.
HART is a registered trademark of HART Communication Foundation.