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Magnetostrictive Level Sensor for Sight Gages

Introducing the new JLT-6000 magnetostrictive level transmitter, available in three different models.

Jogler's LGT-6000 series level transmitter is the first magnetostrictive level sensor that is specifically designed for sight glass automation. The LGT-6000 contains a low profile waveguide that can be mounted internally into (wetted) or externally against (non-wetted) on most sight glass applications. The benefits to this design is the operator receives 100% confirmation between the local level within the sight gage and the remote level readout of the transmitter provided by the float position in the fluid level. The waveguide and float assembly is available in 316SS, CPVC, Alloy 20, Titanium, Hastelloy, or Polypropylene.

Technology

The LGT-6000 contains four elements: transmitter head, sensor pickup, waveguide probe, and the waveguide float. It uses the magnetic field generated by the float to produce a proportionate level signal output. A low energy pulse generated by the transmitter electronics spans the waveguide probe and determines a base time-of-flight interval. As the float reacts to level fluctuations, the magnetic field intersects the waveguide which causes a deflection of the waveguide sensing wire. When this occurs, the time-of-flight interval changes and is detected by the transmitter sensor pickup which converts the deflection to an electrical signal. The transmitter electronics then recalculates a proportional signal output relative to the liquid level elevation.

Standard Features

• 24 VDC nominal, two wire, loop powered

• LCD display in 4-20 mA, in/cm and/or percent output

• Local and remote detection for total or interface level

• HART protocol field communication

• Local programmability allows for easy parameter changes

• Quick-Cal function for simple recalibration to any span

• Dual sealed waveguide and sensor

• Internal or external waveguide mounting

• Top, bottom or remote transmitter head mounting locations

• Accurate to within 0.01% of total span selected

• State of the art sensor and transmitter electronics

• Unique transmitter puck design

• Installs easily on most tubular sight gages

• Available in connection sizes from 1.00 to 2.00 inches

• Maximum transmitter length is 20 feet

• Full Vacuum to 300 PSIG

• Explosion proof housing, NEMA Type 4X

• Cl. I, Div. 1, Gr. BCD; Cl. II, Div. 1, Gr. EFG; Cl. III

SPECIFICATIONS

Performance

• Accuracy +/- 0.015 inches

• Repeatability 0.001% of full span

• Linearity 0.020% of full span

• Refresh Rate 10x per second

• Initiation 0.00 seconds

• Damping 0.00 to 1.00 @ 0.01 seconds, 1.00 to 25.0 @ 1.00 seconds

• Upper 3.00 inch (including sensor)

• Lower 1.00 inch @ probe end

Electrical

• Input 12-30 VDC (24 VDC nominal)

• Output 4-20 mA, percent, and/or height in/cm

• Resistance 600 Ohms (max) @ 24 VDC

• Power 0.66 watts (30 VDC x 0.022 amps)

• Error Signal 3.60 mA (low) or 22.0 mA (high)

• Interface 3 button keypad

• Software HART or PACT

• Display 2 line, 8 character LCD

• Connection 0.75 inch FNPT

Ratings

• MAWP: 300 PSIG

• Ambient Temp. -40° to + 160° degrees F.

• Process Temp. -40° to + 235° degrees F. (Standard) -40° to + 350° degrees F. (High Temp)

• Area: Cl. I, Div. 1, Gr. BCD; Cl. II, Div. 1, Gr. EFG; Cl. III

• Enclosure: NEMA Type 4X