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Fluid Level Sensor | Continuous Measurement | IP68 Rated | Stainless Steel | by SICK
The Fluid Level Sensor LFH-EW4X0G1AS25ST0 offers continuous measurement of fluid levels, making it ideal for industrial processes. With a process pressure range of 0 mH2O to 4 mH2O and a temperature range of -10 °C to +50 °C, this sensor ensures high accuracy and long-term stability. Its durable stainless steel construction and IP68 rating provide protection against environmental ingress, making it perfect for monitoring fluid levels in tanks and containers.
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Technical Specifications
- Medium: Fluids
- Measurement: Continuous
- Process pressure: 0 mH2O to 4 mH2O
- Process temperature: -10 °C to +50 °C
- Maximum ohmic load RA: 4 mA to 20 mA, 2-wire, RA ≤ (L + -10 V) / 0.02 A - (0.14 x cable length in m) Ohm
- Additional function: Temperature measurement
- Non-linearity: ≤ ±0.2% of span (BFSL) according to IEC 61298-2
- Accuracy of sensor element: ≤ ±0.25% of span for enhanced variant p ≥ 0.25 bar
- Non-repeatability: ≤ ±0.1% of span
- Long-term drift/one-year stability: ≤ ±0.2% of span
- Temperature coefficient in rated temperature range: Mean TC of zero ≤ 0.2% of span / 10 K, Mean TC of span ≤ 0.2% of span / 10 K
- Rated temperature range: 0 °C to +50 °C
- MTTF: 403 years
- Supply voltage: 10 V DC to 30 V DC
- Connection type: PUR cable connection
- Length of cable: 25 m
- Output signal: 4 mA to 20 mA, 2-wire
- Enclosure rating: IP68
- Dielectric strength: 500 V DC, NEC Class 02 power supply
- Electrical safety: Protection class III, short-circuit protection, reverse polarity protection, surge protection optional
- Wetted parts: Stainless steel 1.4404 / 316L PA
- Housing material: Stainless steel 1.4404 / 316L
- Material coaxial cable: PUR
- Dimensions (H x L x W): 150mm x 30mm x 30mm
- Weight: 0.2 kg
Key Features
- Continuous measurement of fluid levels
- Process pressure range from 0 mH2O to 4 mH2O
- Process temperature range from -10 °C to +50 °C
- Output signal 4 mA to 20 mA, 2-wire
- Enhanced variant available with 0-10 V or 0-5 V output options
- High accuracy with non-linearity ≤ ±0.2% of span
- Long-term stability with drift ≤ ±0.2% of span per year
- Protection class III with IP68 enclosure rating
- Stainless steel 1.4404 / 316L wetted parts and housing
- PUR cable connection with 25 m cable length
- Additional temperature measurement function
Professional Installation Requirements
- Installation should be performed by a qualified technician or electrician to ensure proper connection and compliance with electrical safety standards.
Applications
- Continuous fluid level measurement in industrial processes
- Monitoring fluid levels in tanks and containers
- Temperature measurement in fluid systems
Standards & Compliance
- AS/NZS 3000 – Wiring Rules (Electrical Installation)
Environmental Benefits
- Durable stainless steel construction ensures long service life reducing waste
- Low power consumption with 4-20 mA output reduces energy usage
- IP68 rating protects against environmental ingress, minimizing maintenance and replacement
Warranty Information
Standard manufacturer warranty applies. Please refer to SICK's official warranty policy for details.
Available Now
The SICK LFH-EW4X0G1AS25ST0 fluid level sensor is available for immediate purchase, ideal for industrial fluid monitoring and process control applications.
