Siemens LR 460 User Manual
7ML19985JM01
SITRANS LR 460 – INSTRUCTION MANUAL
Page 7
mmmmm
S
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ec
if
if
ic
at
io
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s
Long-term stability
≤
± 1 mm/year
Near Range (blanking)
0.35 m (1.15 ft)
Update time
mA output and loop display is updated once per
second
second
Beam angle
• 3" horn:
11° at –3 dB boundary
• 4" horn:
8° at –3 dB boundary
Memory
• non-volatile EEPROM
• no battery required
• no battery required
Interface
Analog output (Not applicable to PROFIBUS PA option)
• signal range
4 to 20 mA
upper limit 20 to 23 mA adjustable
upper limit 20 to 23 mA adjustable
• fail signal
3.6 mA to 23 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)
• signal type
Relay, either NCC or NOC function, max. 50 V DC,
max. 200 mA, rating max. 5 W.
max. 200 mA, rating max. 5 W.
Self-resetting fuse, R
i
= 9
Ω
Electrical isolation
Outputs electrically isolated from the power supply and
from each other
Display
• LCD
two lines of 16 characters each, configurable for the
following displays:
level, amplitude, digital output,
temperature, validity, signal-to-noise ratio,
following displays:
level, amplitude, digital output,
temperature, validity, signal-to-noise ratio,
output current, distance
1.
HART® is a registered trademark of HART Communication Foundation.