Data Sheet

DLC3020f Digital Level Controller
D103433X012
Product Bulletin
11.2:DLC3020f
November 2014
2
Specifications
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
F
OUNDATION fieldbus registered device (ITK 5)
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
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
(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
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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