4042 Liquid Level Controller from Time Mark

4042, Liquid Level Controller, Time MarkThe Model 4042 Liquid Level Controller monitors, displays and controls water level up to 34.6 feet, in a tank or reservoir.

The Model 4042 Liquid Level Controller operates from the 4-20ma input signal provided by the Time Mark Model 450 Pressure Transducer. This 4-20ma signal represents the water level to be controlled, where 4ma equals zero feet, and 20 ma equals 34.6 feet. A liquid crystal display (LCD) is provided to show the water level during normal operations, and the set-point values during calibration.

There are four user-adjustable trip set-points. As the water level rises above each trip point setting, the front panel LED for that level illuminates, and the corresponding output relay energizes. A 4-20ma output, which tracks the 4-20ma input, is also provided. This signal output can be rescaled to different ranges of level by the user. A test control, that stimulates an input signal, is available on the front panel. The test control is useful for checking the trip set-points, and overall system operation.

  • Level simulator control

  • Pressure transducer socket

  • Output voltage for probe supply

  • 4 adjustable set-points with relay outputs

  • LCD level display with zero and span adjustments

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4042, Liquid Level Controller, Time Mark


4042, Liquid Level Controller, Time Mark


Time Mark Corporation

See Access Control Sales Ltd.", Mississauga, ON on MacRae's Blue Book