DLC3010 Digital Level Controller PLC Programmable Logic Controller

DLC3010 Digital Level Controller PLC Programmable Logic Controller

Fisher No. DLC3010

4-20mA 2 wires

Power supply: 24Vdc

The FIELDVUE DLC3010 digital level controller is used with level sensors to measure liquid level, the level of the interface between two liquids, or liquid specific gravity (density). Changes in level or specific gravity exert a buoyant force on a displacer, which rotates a torque tube shaft. The digital level controller converts this rotational motion to an electronic signal.

The DLC3010 is a communicating, microprocessor-based instrument 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, the DLC3010, using HART® communications protocol, gives easy access to information critical to process operation. You can obtain information about the process, instrument, or sensor using the 475 or 375 Field Communicator. The DLC3010 can be used in analog or HART digital signaling mode with the Emerson Automation Solutions DeltaV™ system.

Available Configurations
DLC3010 Digital Level Controller:
Mounts on caged and cageless 249 sensors. See
tables 4 and 5 and sensor description.
Function: Transmitter
Communications Protocol: HART

Specs of DLC3010 Digital Level Controller

The Fisher FIELDVUE DLC3010 digital level controller helps you gain easy access to information critical to your process operation.

Gather information about the process, instrument, or sensor using the 475 or 375 Field Communicator. The DLC3010 digital level controller can be used in analog or HART® digital signaling mode with the DeltaV™ system.

Lever Lock

The lever lock is built in to the coupling access handle. When the handle is open, it positions the lever in the neutral
travel position for coupling. In some cases, this function is used to protect the lever assembly from violent motion
during shipment.
A DLC3010 controller will have one of the following mechanical configurations when received:
1. A fully assembled and coupled caged‐displacer system is shipped with the displacer or driver rod blocked within the
operating range by mechanical means. In this case, the access handle (figure 2) will be in the unlocked position.
Remove the displacer‐blocking hardware before calibration. (See the appropriate sensor instruction manual). The
coupling should be intact.

Power/Current Loop Connections

Use ordinary copper wire of sufficient size to ensure that the voltage across the digital level controller terminals does
not go below 12.0 volts DC. Connect the current signal leads as shown in figure 9. After making connections, recheck
the polarity and correctness of connections, then turn the power on.
RTD Connections
An RTD that senses process temperatures may be connected to the digital level controller. This permits the instrument
to automatically make specific gravity corrections for temperature changes. For best results, locate the RTD as close to
the displacer as practical. For optimum EMC performance, use shielded wire no longer than 3 meters (9.8 feet) to
connect the RTD. Connect only one end of the shield. Connect the shield to either the internal ground connection in
the instrument terminal box or to the RTD thermowell. Wire the RTD to the digital level controller as follows (refer to
figure 11

Two‐Wire RTD Connections

1. Connect a jumper wire between the RS and R1 terminals in the terminal box.
2. Connect the RTD to the R1 and R2 terminals.

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Liability:

WTL is not liable for any personal injury or property damage resulting from the use of this equipment. It is

buyer's responsibility as to the safe handling & operation of this equipment and to verify equipment is

compliance to their machinery.

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