Siemens sitrans PROBE LU - SITRANS Probe LU Specifications; Power and Performance Specifications

A5E32337695 SITRANS Probe LU (HART) – OPERATING INSTRUCTIONS Page 7
Specifications
Specifications
SITRANS Probe LU
Power
• Maximum 30 V DC
• 4 to 20 mA
• Max startup current see
Startup Behavior on page 92
Performance
1
Reference operating conditions according to IEC 60770-1
• ambient temperature +15 to +25
o
C
• humidity 45 to 75% relative humidity
• ambient pressure 860 to 1060 mbar
Measurement Accuracy (measured in accordance with IEC 60770-1)
• non-linearity (accuracy) greater of 6 mm (.24”) or 0.15% of span (including
hysteresis and non-repeatability)
2
• non-repeatability 3 mm (0.19”) [included in non-linearity specification]
• deadband (resolution) 3 mm (0.19”) [included in non-linearity specification]
• hysteresis error 0 mm
Analog Output Accuracy (measured in accordance with IEC 60770-1)
• non-linearity (accuracy) 0.125% of span (including hysteresis and repeatability)
• non-repeatability 0.025% of span (included in non-linearity specification)
• deadband (resolution) 0.0375% of span [included in non-linearity
specification]
• hysteresis error 0%
Frequency 54 KHz
Measurement range
3
6 m (20 ft) model: 0.25 m to 6 m (10" to 20 ft) liquid
12 m (40 ft) model: 0.25 m to 12 m (10" to 40 ft) liquid
Note: Siemens makes every attempt to ensure the accuracy of these specifications
but reserves the right to change them at any time.
Nominal 24 V DC at
max. 550 Ohm.
For other configurations, see the chart Loop Voltage
versus Loop Resistance on page 95.
1.
Reference conditions.
2.
Non-linearity (accuracy) for marine approved products under severe radiated EMI
conditions is the greater of 12 mm or 0.15% of span (including hysteresis and non-
repeatability).
3.
Reference point for measurement is the transducer face.