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Fluid Level Sensor | Continuous Measurement | IP68 Rated | Stainless Steel | by SICK
The Fluid Level Sensor LFH-EW4X0G1AS30ST0 offers continuous measurement of fluids with a process pressure range from 0 mH2O to 4 mH2O and a temperature range of –10 °C to +50 °C. Designed for industrial applications, this sensor features high accuracy with non-linearity ≤ ±0.2% of span and a durable IP68 enclosure, making it perfect for fluid level and pressure monitoring in water treatment and chemical processing.
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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, 30 m length
- Output signal: 4 mA to 20 mA, 2-wire
- Enclosure rating: IP68
- Dielectric strength: 500 V DC
- Electrical safety: Protection class III, short-circuit and reverse polarity protection
- Wetted parts: Stainless steel 1.4404 / 316L PA
- Housing material: Stainless steel 1.4404 / 316L
- Cable material: PUR
- Ambient temperature storage: –30 °C to +80 °C
- Dimensions (H x L x W): 150mm x 30mm x 30mm
- Weight: 0.2 kg
Key Features
- Continuous measurement of fluids
- 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
- Temperature measurement function included
- 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 30 m cable length
Professional Installation Requirements
- Installation should be performed by qualified personnel familiar with fluid measurement devices and electrical safety standards.
Applications
- Fluid level and pressure monitoring in industrial processes
- Continuous measurement in water treatment and chemical processing
- Temperature measurement in fluid systems
Standards & Compliance
- AS/NZS 4801 – Occupational Health & Safety Management Systems
Environmental Benefits
- Durable stainless steel construction reduces waste and extends product life
- Low power consumption with efficient 4-20mA output signal
- IP68 rating ensures protection against environmental ingress, reducing failure rates
Warranty Information
Standard manufacturer warranty applies; please refer to SICK for specific terms.
Available Now
The SICK LFH-EW4X0G1AS30ST0 sensor is available for immediate purchase, ideal for industrial fluid measurement and monitoring applications.
