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SITRANS Probe LU Ultrasonic Transmitters
Brand: Siemens AGSITRANS Probe LU is a 2-wire loop powered ultrasonic transmitter for level, volume and flow monitoring of liquids in open channels, storage vessels and simple process vessels.
The SITRANS Probe LU is ideal for level monitoring in the water and wastewater industry and chemical storage vessels.
The range of SITRANS Probe LU is 6 or 12 m (20 or 40 ft).
The Probe LU ultrasonic level transmitter provides unmatched reliability using Auto False-Echo Suppression for fixed obstruction avoidance, as well as an improved signal-to-noise ratio and improved accuracy of 0.15% of range or 6 mm (0.25").
SITRANS Probe LU includes Sonic Intelligence® signal processing from the field-proven Probe and incorporates new echo processing features and the latest micro-processor and communications technology.
The Probe LU offers two communications options: HART or PROFIBUS PA (Profile version 3.0, Class B).
The transducer on the Probe LU is available as ETFE or PVDF for harsh chemical conditions, as well as for applications with varying material and process temperatures.
The Probe LU incorporates an internal temperature sensor to compensate for temperature changes.
Features- Continuous level measurement up to 12 m (40 ft) range
- Easy installation and simple startup
- Programming using infrared Intrinsically Safe handheld programmer, SIMATIC PDM or HART Communicator
- Communication using HART or PROFIBUS PA
- ETFE or PVDF transducers for chemical compatibility
- Sonic Intelligence signal processing
- Auto False-Echo Suppression for fixed obstruction avoidance
- Level to volume or level to flow conversion
Specifications
Brand
Measuring Range
- 6 m (20 ft) model: 0.25 ... 6 m (10 inch ... 20 ft)
- 12 m (40 ft) model: 0.25 ... 12 m (10 inch ... 40 ft)
Frequency
- 54 kHz
Outputs - mA/HART
- Range: 4 ... 20 mA
- Accuracy: ± 0.02 mA
PROFIBUS PA
- Profile 3, Class B
Resolution
- ≤ 3 mm (0.12 inch)
Accuracy
- ± the greater of 0.15 % of Range
- 6 mm (0.24 inch)
Repeatability
- ≤ 3 mm (0.12 inch)
Blanking Distance
- 0.25 m (10 inch)
Update Time
- ≤ 5 s
- 4/20 mA/HART version ≤ 5 s at 4 mA
- PROFIBUS version ≤ 4 s at 15 mA current loop
Temperature Compensation
- Built-in to compensate over temperature range
Beam Angle
- 10°
Ambient Conditions
- Location: Indoor/outdoor
- Ambient temperature: -40° to +80° C (-40° to +176° F)
- Storage temperature: -40° to +80° C (-40° to +176° F)
- Relative humidity/ingress protection: Suitable for outdoor
- Installation category: I
- Pollution degree: 4
Medium Conditions
- Temperature at flange or threads: -40° to +85° C (-40° to +185° F)
- Pressure (vessel): 0.5 bar g (7.25 psi g)
Material (Enclosure)
- PBT (Polybutylene Terephthalate)
Degree of Protection
- Type 4X / NEMA 4X
- Type 6 / NEMA 6 / IP67 / IP68 enclosure
Weight
- 2.1 kg (4.6 lb)
Cable Inlet
- 2 x M20 x 1.5 cable gland
- 2 x 1/2” NPT thread
- 1 x M20x1.5
- 1 x 1/2” NPT
Material (Transducer)
- Buna-N seal with ETFE (Ethylene Tetrafluoroethylene)
- PVDF (Polyvinylidene Fluoride)
Threaded Connection
- 2” NPT [(Taper), ANSI/ASME B1.20.1]
- R 2” [(BSPT), EN 10226]
- G 2” [(BSPP), EN ISO 228-1]
Flange Connection
- 3 inch (80 mm) universal flange
Other Connection
- FMS 200 mounting bracket
- customer supplied mount
Interface
- Local: LCD display with bar graph
- Remote: Available via HART or PROFIBUS PA
Configuration
- Using Siemens SIMATIC PDM (PC)
- HART handheld communicator
- Siemens infrared handheld programmer
Memory
- Non-volatile EEPROM
Power Supply
- 4 ... 20 mA/HART: Nominal 24 Vdc with 550 Ω maxi- mum, Max. 30 Vdc 4 ... 20 mA
- PROFIBUS PA: 12, 13, 15, or 20 mA depending on programming (General Purpose or Intrinsically Safe version)
PROFIBUS PA
- 12, 13, 15, or 20 mA depending on programming (General Purpose or Intrinsically Safe version)
- Per IEC 61158-2
Certificates & Approvals
- CSAUS/C
- FM
- CE
- RCM
- Lloyd’s Register of Shipping
- ABS Type Approval
- ATEX II 1G Ex ia IIC T4 Ga
- Class I, Div. 1, Groups A, B, C, D
- CSA/FM
- Class II, Div. 1, Groups E, F, G, Class III T4
- SIR 13.0008X Ex ia IIC T4 Ga
- INMETRO Ex ia IIC T4 Ga
- FM Class I, Div. 2, Groups A, B, C, D T4
Intrinsically Safe Siemens Handheld Programmer
- Infrared receiver
Approvals for Handheld Programme
- ATEX II 1GD / IECEx SIR 09.0073
- Ex ia IIC T4 Ga
- Ex iaD 20 T135° C
- FM/CSA Class I, II, III, Div. 1, Groups A, B, C, D, E, F, G T6
Ambient Temperature
- -20° to 50° C (-5° to 122° F)
Interface
- Proprietary infrared pulse signal
Power
- 3 V lithium battery (non-Replaceable)
- Chemical Storage Vessels
- Filter Beds
- Liquid Storage Vessels
