Capacitive Continuous Level Transmitters
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Manufacturer: Omega(USA)
Model: LV5900 Series
Introduction: 
The LV5900 series radio frequency level transmitter is designed for continuous level measurement of conductive and non-conductive liquids, granular materials, slurries and interface applications. The electronics incorporate an “anti-coat” capability to compensate for the effect of conductive coatings which may build up on the sensing element surface. (Use the LV5200 Series elements, page K-31, for conductive coating liquids.) The 4-20 mA output is isolated and has an adjustable damping for turbulent level monitoring. The analog output is field-selectable for direct or reverse operation. The blind transmitters can be remotely mounted up to 15 feet from the sensing element. Three accessories required are a threaded adaptor, LV5971, which screws into the bottom of the enclosure to provide a surface mount; an explosion-proof junction box, LV5972, which mounts onto the level element in place of the transmitter; and a triaxial cable, LV5974-10 or 15 feet, to connect the junction box to the transmitter.
Specifications:
Power: 18-35 Vdc (std.), 115 or 230 Vac (optional)
Required Power Draw: 1 watt @ 24 Vdc, 2.7 watts @ 115 Vac
Analog Output: 4–20 mA, isolated; field selectable for direct or reverse acting
Span Range Adjustment: 10 to 10,000 pF
Zero Range Adjustment: 0 to 500 pF
Zero/Span Ratio: 10:1 maximum
Linearity: ±0.5% FS
Repeatability: 0.5% of full scale
Output Damping: adjustable, 0.1 to 10 seconds
Resistance, Max Load: 550 ohms @ 24 Vdc {R=50 x (V-13)}, 600 ohms for ac powered
Anti-Coat Circuitry: Phase shift type, compensates for conductive coatings
Ambient Conditions: Transmitter with aluminum enclosure: –40 to 71°C (–40 to 160°F), 0–95% relative humidity, non-condensing
Temperature Stability: Greater of 0.01 pF per °F or 0.01% of span per °F
Enclosure: LV5900-cast aluminum with urethane finish, NEMA 4,7,9 weatherproof, hosedown, dust and vapor explosion-proof LV5900-P, NEMA 4X for some corrosive areas
Weight: LV5900-1.63 kg (3.6 lbs), LV5900-P -1.58 kg (3.5 lbs)
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