User's Manual

Table Of Contents
Page 6 SITRANS LR260 (HART) – OPERATING INSTRUCTIONS A5E32337683
mmmmm
Specifications
Specifications
Power
Maximum 30 V DC
4 to 20 mA
Max startup current see
Startup Behavior
on page 105
Performance
Reference operating conditions according to IEC 60770-1
ambient temperature +15 to +25 °C (+59 to +77 °F)
humidity 45% to 75% relative humidity
ambient pressure 860 to 1060 mbar g (86000 to 106000 N/m
2
g)
Measurement Accuracy (measured in accordance with IEC 60770-1)
Maximum measured error (including hysteresis and non-repeatability)
- 25 mm (1") from minimum detectable distance to
300 mm (11.8")
- Remainder of range = 10 mm (0.39") or 0.1% of span
(whichever is greater)
Frequency K-band (25 GHz nominal)
Max. measurement range
1)
solids 2" horn: 10 m (32.8 ft)
3" horn: 20 m (65.6 ft)
4" horn: 30 m (98.4 ft)
liquids 2" horn: 20 m (65.6 ft)
3" horn: 30 m (98.4 ft)
4" horn: 30 m (98.4 ft)
Min. detectable distance
2)
0.05 m (1.97") from end of horn
Update time
3)
minimum 2 seconds, depending on settings for
Response Rate (2.2.7.1.) and LCD Fast Mode (4.3.)
Note: Siemens Milltronics makes every attempt to ensure the accuracy of these
specifications but reserves the right to change them at any time.
Nominal 24 V DC with
max. 550 Ohm loop resis-
tance:
For other configurations, see the chart under
Loop
power
on page 104
1)
From sensor reference point.
2)
See
Dimensions:
on page 10.
3)
Reference conditions: Response Rate (2.2.7.1.) set to FAST and LCD Fast Mode (4.3.) set to
ON