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Fluid Level Sensor | Continuous Measurement | IP68 Rated | Overvoltage Protection | by SICK
The Fluid Level Sensor LFH-EW4X0G1AF25SW0 offers continuous fluid measurement with high accuracy and low non-linearity, making it ideal for industrial processes. With an IP68 rated enclosure, overvoltage protection, and a robust stainless steel design, this sensor ensures reliable performance in harsh environments, perfect for monitoring fluid levels, pressure, and temperature.
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Technical Specifications
- Medium: Fluids
- Measurement: Continuous
- Process pressure range: 0 mH2O to 4 mH2O
- Process temperature range: -10 °C to +85 °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 functions: Overvoltage protection, 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: 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: FEP cable connection, 25 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, reverse polarity, and surge protection
- Dimensions (H x L x W): 150mm x 20mm x 20mm
- Weight: 0.2 kg
Key Features
- Continuous fluid measurement with high accuracy and low non-linearity
- Overvoltage protection and temperature measurement included
- Robust stainless steel 1.4404 / 316L housing and wetted parts
- IP68 rated enclosure for protection against dust and water ingress
- Long cable length of 25 meters with FEP cable connection
- Output signal: 4 mA to 20 mA, 2-wire system
- Protection class III with short-circuit, reverse polarity, and surge protection
Professional Installation Requirements
- Installation should be performed by qualified personnel familiar with electrical and fluid measurement systems to ensure proper connection and compliance with safety standards.
Applications
- Fluid level measurement in industrial processes
- Continuous monitoring of fluid pressure and temperature
- Suitable for harsh environments requiring IP68 protection
Standards & Compliance
- Complies with AS/NZS 3000 – Wiring Rules (Electrical Installation)
Environmental Benefits
- Durable stainless steel construction reduces waste and extends product life
- Low power consumption with efficient 4-20mA output signal
- IP68 rating ensures long-term reliability in harsh environments, reducing replacement frequency
Warranty Information
Standard manufacturer warranty applies; please refer to SICK's official warranty policy for details.
Available Now
The SICK LFH-EW4X0G1AF25SW0 Fluid Level Sensor is available for immediate purchase, ideal for industrial fluid monitoring applications requiring high accuracy and robust design.
