Supported Applications
The Omega LVF-200A-R Series is an optical level switch designed for leak detection and monitoring clear or translucent liquids. The sensor operates by creating a pulsed beam of infrared light reflected on the oblique flat sensor tip; when dry, the beam is recognized, but if wet, it reflects back into the liquid. Factory calibrated for specific media types, this series provides high optical efficiency with resistance to ambient light and process condensation.
Documented applications include:
• Leak detection
• Detection of clear or translucent liquids
Operating Conditions & Performance
The LVF-200A-R Series operates within a process temperature range of -40 to 90°C (-40 to 194°F). Accuracy is specified as ±1 mm (0.04") in water, with repeatability of ±0.5 mm (0.02") in water.
Performance limits and environmental ratings include:
• Maximum Pressure Rating PP: 150 psi @ 25°C (76°F), derated at 1.667 psi per °C above 25°C (76°F)
• Voltage Input: 12 to 36 Vdc @ 25 mA
• Loop Resistance: 600 Ω @ 24 Vdc
• Enclosure Rating: NEMA 6 (IP68) submersible sensor and cable
• Cable Length: Standard 3 m (10') with a maximum of 305 m (1000')
The series is not recommended for use with coating or highly specular liquids.
Configuration Options
The LVF-200A-R Series offers configurable options regarding sensor material, insertion length, and process connection thread type. The model number guide follows the format: LVF-<LENGTH>-<MATERIAL>-<THREAD>
Wetted Materials
• Polypropylene (PP)
• Perfluoroalkoxy (PFA)
Sensor Dimensions and Connections
The series supports two overall lengths with a diameter of 2.7 cm:
• Lengths: 7.6 cm (3") or 11.4 cm (4.5")
• Process Connections: ¾ NPT or ¾ G
Electrical and Output Options
• Output Signal: SPST Relay, selectable NO or NC (60 VA, 1 A maximum)
• Electrical Connection: 4 conductor shielded cable
Key Product Differences
Variants within the LVF-200A-R Series are distinguished by material composition and physical dimensions. Models ending in "PP" utilize Polypropylene wetted materials, while those with "PFA" use Perfluoroalkoxy.
• LVF-210A-R / LVF-212A-R: 7.6 cm (3") and 11.4 cm (4.5") lengths respectively, with PP material and ¾ NPT thread.
• LVF-211A-R / LVF-213A-R: 7.6 cm (3") and 11.4 cm (4.5") lengths respectively, with PFA material and ¾ NPT thread.
Variants designated with a "G" suffix in the model number (e.g., LVF-210A-G-R) feature a ¾ G process connection instead of ¾ NPT. All models include an operator's manual and carry CE approval with a 1 YEAR WARRANTY.
| Accuracy | ± 0.04 inH2O |
| Approvals | CE, RoHS |
| Cable Length | 1000 ft |
| Enclosure Ratings | IP68, NEMA Type 6 |
| Insulation | PVC |
| Loop Resistance | 600 Ω @ 24 Vdc |
| Number of Wires | 4 |
| Operating Pressure, Max | 150 psi |
| Operating Pressure Note | 150 psi @ 25°C (76°F), derated @ 1.667 psi per °C above 25°C (76°F) |
| Operating Temperature, Max | 90 °C |
| Operating Temperature, Min | -40 °C |
| Process Connection Size | 3/4 in |
| Process Connection Type | NPT Male |
| Repeatability | ± 0.02 inH2O |
| Series ID | LVF-200A-R-Series |
| Supply Power Type | DC |
| Supply Voltage | 12 to 36 Vdc |
| Switch Operation | Selectable Normally Open or Normally Closed |
| Switch Rating | 1 A @ 60 or 120 Vac/Vdc |
| Switch Type | SPST |