Emerson Fisher DLC3020f Data Sheet

Product Bulletin

DLC3020f Digital Level Controller

D103433X012

11.2:DLC3020f

November 2014

Fisherr FIELDVUEt DLC3020f Digital Level
Controller for F

The FIELDVUE DLC3020f digital level controller is a
fieldbus communicating instrument used to measure
liquid level or the level of interface between two
liquids using displacement sensor technology.

In addition to the normal function of reporting process
level PV, the DLC3020f, using F
protocol, gives easy access to information critical to
process operation and will readily integrate into a new
or existing control system. AMS Suite: Intelligent
Device Manager or the 475 Field Communicator can
be used to configure, calibrate, or test the digital level
controller.

The DLC3020f is also designed to directly replace
pneumatic, analog, or HARTr transmitters/
controllers. It can be mounted on a wide variety of 249
cageless and caged level sensors as well as on other
displacer type level sensors through the use of
mounting adaptors.

OUNDATION fieldbus

OUNDATION

t

fieldbus

W9954-1_DLC3020f

n Dynamic Temperature Compensation Integration

of process fluid temperature, when needed, enables
density compensation to maintain PV accuracy.

Features

n Ease of Use The DLC3020f, a fieldbus level or

interface transmitter, features the latest in user
interface technology. In addition to reporting the
PV, the DLC3020f can act as a PID controller or level
switch.

n Guided Setup and Calibration Leads you through

instrument setup, process fluid selection, and
calibration in an easy‐to‐use format.

n Simple Process Fluid Configuration The capability to

easily select/define process fluids allows for fluid
changes without requiring re-calibration.

n Calibration/Setup Logs Saved in Instrument

Logs, including calibration, instrument setup, and
process fluid data, can be saved for future reference
or re‐use in batch or continuous applications. The
instrument stores up to 30 logs.

n Performance/Reliability State‐of‐the‐art Emerson

advanced electronics provide increased
performance and reliability.

www.Fisher.com

Product Bulletin

11.2:DLC3020f
November 2014

Specifications

DLC3020f Digital Level Controller

D103433X012

Available Configurations

Mounts on 249 caged and cageless sensors. Refer to
Fisher Bulletin 11.2:Level

or 34.2:2500 for

information on 249 sensors.

Function: Transmitter, Controller, Switch

Communications Protocol: F

OUNDATION fieldbus

Digital Communication Protocol

OUNDATION fieldbus registered device (ITK 5)

F

Supply Requirements

9 to 32 volts DC, 17.7 mA DC;
instrument is not polarity sensative

Device Inputs

Level Sensor Input (required)
Rotary motion of torque tube shaft is proportional to
buoyant force of the displacer caused by changes in
liquid level or interface level

Process Temperature Compensation Input (optional)
RTD—interface for 2‐ or 3‐wire 100 ohm
platinum RTD
AO Block—F

OUNDATION fieldbus temperature

transmitter
Manual—compensation values manually entered in
the device

LCD Meter Indications

Process Variable in engineering units
Process Variable in percent (%) only
Alternating Process Variable in engineering units and
percent (%)
Optional: Alerts as configured

‐continued‐

Function Block Suite

AI, PID, DI (two), AO (three), ISEL, and an ARTH
function block

Block Execution Times

AI, PID, DI, AI, ISEL: 15 ms
ARTH: 25 ms

Fieldbus Device Capabilities

Backup Link Active Scheduler (BLAS)

Performance

Performance Criteria DLC3020f

Independent Linearity

Accuracy

Repeatability <0.1% of full scale output

Hysteresis <0.10% of output span

Deadband <0.05% of input span

Humidity

Note: At full design span, reference conditions.

1. To lever assembly rotation inputs.

$0.1% of output span

$0.15%

$0.10% (RH9.2% to 90%)

(1)

Minimum Differential Specific Gravity

0.1 SGU with standard volume displacers

Ambient Temperature Effect

The combined temperature effect on zero and span is
less than 0.01% of full scale per degree Celsius over
the operating range -40 to 80_C (-40 to 176_F)

Process Temperature Effect

Temperature compensation can be implemented to
correct for fluid density changes due to process
temperature variations

Electromagnetic Compatibility

Meets EN 61326-1 (First Edition)
Immunity—Industrial locations per Table 2 of
the EN 61326-1 standard.
Emissions—Class A
ISM equipment rating: Group 1, Class A

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