Quick Start Guide
D103470X012
DLC3020f Digital Level Controller
April 2022
31
Table 2. Specifications
Available Configurations
Mounts on 249 caged and cageless sensors.
Function
:
Transmitter, Controller, Switch
Communications Protocol:
F
OUNDATION
fieldbus
Digital Communication Protocol
F
OUNDATION
fieldbus registered device (ITK 5)
Supply Requirements
9 to 32 volts DC, 17.7 mA DC; instrument is not
polarity sensitive
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 unit
s
Process Variable in percent (%) only
Alternating Process Variable in engineering units and
percent (%)
Optional: Alerts as configured
Function Block Suite
AI, PID, DI (two), AO (three), ISEL, and an ARTH
function block
Block Execution Times
AI, PID, DI, AO, ISEL:
15 ms
ARTH:
25 ms
Fieldbus Device Capabilities
Backup Link Active Scheduler (BLAS)
Performance
Criteria
DLC3020f
(1)
Independent Linearity
$
0.1% of output span
Accuracy
$
0.15%
Repeatability
<
0.1% of full scale output
Hysteresis
<
0.10% of output span
Deadband
<
0.05% of input span
Humidity
$
0.10% (RH9.2% to 90%
)
Note: At full design span, reference conditions.
1. To lever assembly rotation inputs.
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. See page 19 for information
on how to correct with temperature compensation.
Electromagnetic Compatibility
Meets EN 61326
-
1:2013 and EN 61326-2-3:2006
Immunity—Industrial locations per Table 2 of
EN 61326‐1 and Table AA.2 of EN 61326‐2‐3.
Performance is shown in table 3 below.
Emissions—Class A
ISM equipment rating: Group 1, Class A
Lightning and Surge Protection
—The degree of
immunity to lightning is specified as Surge immunity
in table 3. For additional surge protection
commercially available transient protection can be
used.
Alerts and Diagnostics
Electronic Alerts
advise when there is an electronic
error in memory
Operational Range Alerts
notify when PV range and
sensor range changes might affect calibration
Rate Limit Alerts
indicate rapid rise or fall in displacer,
which can signify abnormal operating conditions
RTD Alerts
show health and condition of connected
RTD
-continued-
