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FISHER DLC3020F digital level controller

11-07-2026




FISHER DLC3020F digital level controller

FISHER DLC3020F

FISHER DLC3020F

FISHER DLC3020F

FISHER DLC3020F

Available Configurations

Mounts on caged and cageless 249 sensors Function: Transmitter

Communications Protocol: HART

Input Signal

Level, Interface, or Density(1): 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 density.

Output Signal

Analog: 4 to 20 mA 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(2): > 21.0 mA

Low Alarm(2): < 3.6 mA

Digital: HART 1200 Baud Frequency Shift Keyed (FSK)

HART impedance requirements must be met to

enable communication. Total shunt impedance

across the master device connections (excluding the master and transmitter impedance) must be between 230 and 600 ohms.

Supply Requirements (see figure 3)

12 to 30 volts DC; 25 mA

Instrument has reverse polarity protection.

A minimum compliance voltage of 17.75 VDC (due to HART impedance requirement) is required to

guarantee HART communication.

Transient Voltage Protection

 

Pulse Waveform

Max V CL @ Ipp (Clamping Voltage) (V)

Ipp

(Peak Pulse Current) (A)

Rise Time

(μs)

Decay

to 50% (μs)

10

1000

48.4

12.4

 

Electrical Classification

Overvoltage Category II per IEC 61010 clause 5.4.2 d Pollution Degree 4

Altitude Rating

Up to 2000 meters (6562 feet)

Ambient Temperature

The combined temperature effect on zero and span without the 249 sensor is less than 0.02% of full scale per degree Celsius over the operating range -40 to

80oC (-40 to 176oF)

LCD operating temperature limits

-20 to 70oC (-4 to 158oF)(3)

Process Temperature

The process density and torque rate are affected by  the process temperature (see figure 5). Temperature compensation can be implemented to correct for

process density changes.

Process Density

The sensitivity to error in knowledge of process

density is proportional to the differential density of the calibration. If the differential specific gravity is

0.2, and error of 0.02 specific gravity units in

knowledge of a process fluid density represents 10% of span.

Hazardous Area Approvals

CSA

Class/Division: Intrinsically Safe, Explosion-proof(4), Division 2, Dust Ignition-proof

Zone: Intrinsically Safe, Flameproof, Type n, Dust by intrinsic safety and Enclosure

ATEX/IECEx—Flameproof, Intrinsic Safety, Dust by Intrinsic Safety

Electrical Housing

IP66, Type 4X

 

Electrical Connections

Two 1/2-14 NPT internal conduit connections. Both are at the bottom of terminal box.

-continued-


FISHER DLC3020FFISHER DLC3020F 

 

Electromagnetic Compatibility

DLC3100 meets EN61326-1:2013 Performance is shown in table 1

DLC3100 SIS meets EN61326-3-2:2008 Performance is shown in table 2

DLC3100 SIS

Safety Instrumented System Classification

SIL2 capable - certified by exida Consulting LLC

Performance

 

Performance Criteria

DLC3100

Digital Level Controller(1)

w/ NPS 3

249W, Using

a 14‐inch

Displacer

w/ All Other 249 Sensors

Independent

Linearity

± 0.25% of

output span

± 0.8% of

output span

± 0.5% of

output span

Hysteresis

<0.2% of

output span

- - -

- - -

Repeatability

± 0.1% of full

scale output

± 0.5% of

output span

± 0.3% of

output span

Dead Band

<0.05% of

input span

- - -

- - -

Hysteresis plus

Deadband

- - -

<1.0% of

output span

<1.0% of

output span

NOTE: At full design span, reference conditions.

1. To lever assembly rotation inputs.

At effective proportional band (PB)<100%, linearity,

dead band, and repeatability are derated by the factor (100%/PB)

Minimum Differential Specific Gravity

0.05 SGU

 

 

Construction Materials

Housing and Cover: Low-copper aluminum die casting alloy

Internal: Aluminum, and stainless steel; encapsulated printed circuit board

Lever assembly: Plated steel, neodymium iron boron magnets

Hall Guard: Thermoplastic elastomer

 

 

Weight

Less than 3.45 kg (7.57 lb)

 

 

Options

 Heat insulator(5) (see figure 2 for use guidelines)

 Mountings for Masoneilan, Yamatake and Foxboro-Eckhardt sensors

1. Density application is not available in DLC3100 SIS.

2. Only one of the High/Low alarm definition is available in a given configuration. Both alarms are NAMUR NE43 compliance.

3. Outside of this limit, LCD will not be readable but it will not affect the functionality of DLC3100 if the temperature is still within the operating limits. Push buttons will be disabled when instrument temperature is below -20°C (-4°F) or above 70°C (158°F) where LCD display might be intermittent.

4. Not for use in Ester and Ketone atmospheres.

5. If the DLC3100 and a 249 sensor are ordered as an assembly, and a heat insulator is required for the application, order the heat insulator as a 249 sensor option.

If the DLC3100 is ordered separately, the heat insulator is available as a kit.

FISHER DLC3020F 

FISHER DLC3020FTable 1. DLC3100 EMC                  Results—                     EN61326-1

Port

Phenomenon

Basic Standard

Test Level

Test Results(1)(2)

 

 

Enclosure

Electrostatic

discharge (ESD)

IEC 61000-4-2

4 kV contact

8 kV air

A

Radiated EM field

IEC 61000-4-3

80 to 1000 MHz @ 10V/m with 1 kHz AM at 80% 1400 to 2000 MHz @ 3V/m with 1 kHz AM at 80% 2000 to 2700 MHz @ 1V/m with 1 kHz AM at 80%

A

Radiated power

frequency magnetic

field

IEC 61000-4-8

30 A/m at 50 and 60 Hz

A

I/O signal/control

Burst

IEC 61000-4-4

1 kV

A

Surge

IEC 61000-4-5

1kV (line to ground only, each)

B

Conducted RF

IEC 61000-4-6

150 kHz to 80 MHz at 3 Vrms

A

Protective earth

Burst

IEC 61000-4-4

2 kV

A

Surge

IEC 61000-4-5

2 kV (line to ground only)

B

Conducted RF

IEC 61000-4-6

150 kHz to 80 MHz at 3 Vrms

A

1. A = No degradation during testing. B = Temporary degradation during testing, but is self_recovering. Specification limit = +/- 1% of span.

2. HART communication was considered as “not relevant to the process” and is used primarily for configuration, calibration, and diagnostic purposes.

 


Table 2. DLC3100 SIS EMC Summary Results—Immunity per EN61326-3-2

 

Port

Phenomenon

Basic Standard

Test Level

Test Results(1)(2)

 

 

Enclosure

Electrostatic

discharge (ESD)

IEC 61000-4-2

6 kV contact

8 kV air

A

Radiated EM field

IEC 61000-4-3

80 to 1000 MHz @ 10V/m with 1 kHz AM at 80% 1400 to 2000 MHz @ 10V/m with 1 kHz AM at 80% 2000 to 2700 MHz @ 3V/m with 1 kHz AM at 80%

A

Radiated power

frequency magnetic

field

IEC 61000-4-8

100 A/m at 50 and 60 Hz

A

I/O signal/control

Burst

IEC 61000-4-4

1 kV

A

Surge

IEC 61000-4-5

1 kV (line to ground only, each)

FS

Conducted RF

IEC 61000-4-6

10 kHz to 80 MHz at 10 Vrms

A

Protective earth

Burst

IEC 61000-4-4

2 kV

A

Surge

IEC 61000-4-5

1 kV (line to ground only)

A

Conducted RF

IEC 61000-4-6

10 kHz to 80 MHz at 10 Vrms

A

1. A = No degradation during testing. B = Temporary degradation during testing, but is self_recovering. FS = Fail Safe. Specification limit = +/- 2% of span.

2. HART communication was considered as “not relevant to the process” and is used primarily for configuration, calibration, and diagnostic purposes.





















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