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to an electronic signal.
DLC3000 Series digital level controllers are communicating, microprocessor-based instruments that can be configured to sense the level, interface level, or density of liquids. In addition to the normal function of providing a 4 to 20 milliampere current signal, DLC3000 Series digital level controllers, using the HART communications protocol, give easy access to information critical to process operation.
You can obtain information about the process, instrument, or sensor using the Model 375 Field Communicator. Advanced user-interface capabilities are enabled by AMS Suite: Intelligent Device Manager.
The DLC3000 Series can be used in analog or HART digital signaling mode with the Emerson Process Management DeltaV system. The connection for HART communication may be made at any point in the field wiring that meets the HART impedance requirements. Configuration, calibration, diagnostics, parameter review, signal monitoring and alert monitoring are all available through the HART protocol. Information from the field can be integrated into control systems or be received on a single loop basis. DLC3000 Series digital level controllers are designed to directly replace standard pneumatic and electronic level transmitters. Type DLC3010 digital level controllers mount on a wide variety of Fisher 249 Series cageless and caged level sensors.
Available Configurations Type DLC3010 Digital Level Controller: Mounts on Fisher 249 Series caged and cageless sensors. See tables 4 and 5 and sensor description. Function: Transmitter Communications Protocol: HART Input Signal(1) Level, Interface, or Density: Rotary motion of torque tube shaft proportional to changes in liquid level, interface level, or density that change the buoyancy of a displacer. Process Temperature: Interface for 2- or 3-wire 100 ohm platinum RTD for sensing process temperature, or optional user-entered target temperature to permit compensating for changes in specific gravity Output Signal(1) Analog: 4 to 20 milliamperes dc ( direct action—increasing level, interface, or density increases output; or reverse action—increasing level, interface, or density decreases output) High saturation: 20.5 mA Low saturation: 3.8 mA High alarm: 22.5 mA Low Alarm: 3.7 mA Only one of the above high/low alarm definitions is available in a given configuration. NAMUR NE 43 compliant when high alarm level is selected.
