Description
LMP 331 sensor 431-4000-1-1-1-1-100-5-000 Level sensor
Precision Screw-In Transmitter
The LMP 331 Level Sensor 431-4000-1-1-1-1-100-5-000 delivers accurate and reliable continuous level measurement. Designed as a stainless steel screw-in transmitter, it ensures strong performance in demanding industrial environments.
LMP 331 Level Sensor 431-4000-1-1-1-1-100-5-000 achieves Excellent Accuracy and Stability
The LMP 331 achieves standard accuracy of 0.35% FSO according to IEC 61298-2. Optional versions provide 0.25% or 0.1% FSO for higher precision applications.
Engineers benefit from minimal thermal effect during operation. Long-term stability ensures consistent measurement results over time. Maintain process control without frequent recalibration.
Wide Nominal Pressure Range
This transmitter supports nominal pressure ranges from 0…100 mbar up to 0…40 bar. The broad range allows flexible application across multiple systems.
Use it confidently in tanks, vessels, and pressurized systems. Adapt the device easily to specific pressure requirements.
LMP 331 Level Sensor 431-4000-1-1-1-1-100-5-000 offers Flexible Output Signal Options
The LMP 331 offers a 2-wire 4–20 mA output configuration. A 3-wire option provides 0–20 mA or 0–10 V output signals.
Additional signal options are available upon request. Integrate the sensor seamlessly into existing control systems.
Robust Stainless Steel Construction
The sensor features a durable stainless steel housing. The flush pressure port with G 3/4″ connection supports hygienic and reliable installation.
Strong construction ensures resistance to harsh media and environmental conditions. Rely on dependable performance in industrial processes.
Modular and Customizable Design
The modular design allows high flexibility in configuration. Choose customer-specific pressure ranges when required.
Optional intrinsically safe Ex ia versions support hazardous areas with gases and dusts. SIL 2 versions comply with IEC 61508 and IEC 61511 for functional safety applications.
Drinking water certification according to DVGW and KTW expands suitability for water systems. Select different electrical connections to match project needs.
Ideal Applications of LMP 331 Level Sensor 431-4000-1-1-1-1-100-5-000
The LMP 331 performs reliably in plant and machine engineering. Energy industry systems benefit from its stable measurements. Environmental engineering projects, including water, sewage, and recycling systems, rely on its durability and precision.
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Model: LMP 331
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Part Number: 431-4000-1-1-1-1-100-5-000
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Measuring Type: Continuous Level / Pressure
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Accuracy: 0.35% FSO (optional 0.25% / 0.1%)
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Nominal Pressure: 0…100 mbar to 0…40 bar
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Output Signals: 4–20 mA (2-wire), 0–20 mA / 0–10 V (3-wire)
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Pressure Port: G 3/4" Flush
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Material: Stainless Steel
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Safety Options: Ex ia, SIL 2
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Applications: Industrial, Energy, Environmental Engineering




