Pepperl Fuchs LB7104A

Universal Input/Output (HART)

MPN
LB7104A
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What is the Pepperl Fuchs LB7104A?

4-channel

Inputs Ex ia, Outputs Ex ia

Analog input, digital input, analog output, digital output

Mounting in Zone 2, Class I/Div.2 or in the safe area

Supply circuit 15 V (20 mA)

HART communication via field bus or service bus

Simulation mode for service operations (forcing)

Line fault detection (LFD): one LED per channel

Permanently self-monitoring

4-channel, Inputs Ex ia, Outputs Ex ia, Analog input, digital input,, analog output, digital output, Mounting in Zone 2, Class I/Div.2 or in the safe area

Specifications

Slots

Order code (Pepperl+Fuchs part number)254847
Occupied slots1
LifecycleActive (current Pepperl+Fuchs product)

Supply

Connectionbackplane bus
Rated voltage12 V DC , only in connection with the power supplies LB9*** Ur
Power dissipation2 W
Power consumption3 W

Internal bus

Connectionbackplane bus
Interfacemanufacturer-specific bus to standard com unit

Analog input

Number of channels4
Suitable field devices: Field devicepressure converter
Suitable field devices: Field device [2]flow converter
Suitable field devices: Field device [3]level converter
Suitable field devices: Field device [4]Temperature Converter
Field device interface: Connection2-wire transmitter
Connectionterminals 1+, 2-; 3+, 4-; 5+, 6-; 7+, 8-
Transmitter supply voltagemin. 15 V at 20 mA ; 21.5 V at 4 mA
Input resistance15 Ω
Line fault detectioncan be switched on/off for each channel via configuration tool , configurable via configuration tool
Short-circuitfactory setting: > 21 mA Can be parameterized in the range 0 ... 22 mA
Open-circuitfactory setting: < 3.6 mA Can be parameterized in the range 0 ... 22 mA
HART communicationyes
HART secondary variableyes

Analog output

Number of channels4
Suitable field devices: Field deviceProportional Valve
Suitable field devices: Field device [2]I/P converters
Suitable field devices: Field device [3]on-site display
Connectionterminals 1+, 2-; 3+, 4-; 5+, 6-; 7+, 8-
Current0 ... 20 mA short-circuit protected
Line fault detectioncan be switched on/off for each channel via configuration tool , configurable via configuration tool
Short-circuitfactory setting: < 50 Ω configurable between 0 ... 26 mA
Open-circuitdeviation of preset output value > 0.5 mA
Loadmax. 750 Ω at 20 mA
HART communicationyes
HART secondary variableyes
Watchdogoutput off 0.5 s after serious fault

Digital input

Number of channels4
Sensor interface: Connection [2]volt-free contact
Connectionterminals 1+, 2-; 3+, 4-; 5+, 6-; 7+, 8-
Line fault detectioncan be switched on/off for each channel via configuration tool
Connectionmechanical switch with additional resistors (see connection diagram)
Short-circuit> 7 mA
Open-circuit< 0.1 mA
Digital signals (active): Switching point: ON> 2.1 mA
Digital signals (active): Switching point: OFF< 1.2 mA

Digital output

Number of channels4
Suitable field devices: Field deviceSolenoid Valve
Suitable field devices: Field device [2]audible alarm
Suitable field devices: Field device [3]visual alarm
Connectionterminals 1+, 2-, 3+, 4-, 5+, 6-, 7+, 8-
Drive capability12 V / 22 mA
Internal resistor385 Ω Ri
Current limit22 mA Imax
Open loop voltagemin. 22.7 V Us
Line fault detectioncan be switched on/off for each channel via configuration tool
Test current0.4 mA
Short-circuit< 50 Ω
Open-circuit< 0.2 mA

Transfer characteristics

Deviation: After calibration0.1 % of the signal range at 20 °C (68 °F)
Deviation: Influence of ambient temperature0.1 %/10 K of the signal range
Refresh timeapprox. 100 ms (4 channels)

Indicators/settings

LED indicationPower LED (P) green: supply Diagnostic LED (I) red: module fault , red flashing: communication error , white: fixed parameter set (parameters from com unit are ignored) , white flashing: requests parameters from com unit Status LED (1-4) red: line fault (lead breakage or short circuit) , yellow: state of digital I/O (0/1) Configuration LED (AI, AO, DI, DO) white: selected channel mode
Codingoptional mechanical coding via front socket

Directive conformity

Electromagnetic compatibility: Directive 2014/30/EUEN 61326-1:2013

Conformity

Electromagnetic compatibilityNE 21:2007
Degree of protectionIEC 60529:2000
Environmental testEN 60068-2-14:2009
Shock resistanceEN 60068-2-27:2009
Vibration resistanceEN 60068-2-6:2008
Damaging gasEN 60068-2-42:2003
Relative humidityEN 60068-2-78:2001

Ambient conditions

Ambient temperature-40 ... 60 °C (-40 ... 140 °F)
Storage temperature-40 ... 85 °C (-40 ... 185 °F)
Relative humidity95 % non-condensing
Altitudemax. 2000 m
Shock resistanceshock type I, shock duration 11 ms, shock amplitude 15 g, number of shocks 18
Vibration resistancefrequency range 10 ... 150 Hz; transition frequency: 57.56 Hz, amplitude/acceleration ± 0.075 mm/1 g; 10 cycles frequency range 5 ... 100 Hz; transition frequency: 13.2 Hz amplitude/acceleration ± 1 mm/0.7 g; 90 minutes at each resonance
Damaging gasdesigned for operation in environmental conditions acc. to ISA-S71.04-1985, severity level G3

Mechanical specifications

Degree of protectionIP20 when mounted on backplane
Connectionremovable front connector with screw flange (accessory) wiring connection via spring terminals (0.14 ... 1.5 mm2) or screw terminals (0.08 ... 1.5 mm2)
Massapprox. 100 g
Dimensions: Height100 mm
Dimensions: Width16 mm
Dimensions: Depth102 mm

Data for application in connection with hazardous areas

EU-type examination certificateBVS 11 ATEX E 116 X
MarkingII 3(1) G Ex nA [ia Ga] IIC T4 Gc[exsign] I (M1) [Ex ia Ma] I[exsign] II (1) D [Ex ia Da] IIIC
Input: Voltage27 V Uo
Input: Current87 mA Io
Input: Power575 mW (linear characteristic) Po
OutputEx ia
Voltage27 V Uo
Current87 mA Io
Power575 mW (linear characteristic) Po
Internal capacitance12 nF Ci
Internal inductance0 mH Li
Galvanic isolation: Rated voltage250 V field circuits to control and supply circuits Um
Galvanic isolation: Input/power supply, internal bussafe electrical isolation acc. to EN 60079-11, voltage peak value 375 V
Galvanic isolation: Output/power supply, internal bussafe electrical isolation acc. to EN 60079-11, voltage peak value 375 V
Directive conformity: Directive 2014/34/EUEN IEC 60079-0:2018+AC:2020 EN IEC 60079-11:2024 EN 60079-15:2010

International approvals

ATEX approvalBVS 11 ATEX E 116X
UL approvalE106378
IECEx approval: IECEx certificateIECEx BVS 11.0068X
IECEx approval: IECEx markingEx nA [ia Ga] IIC T4 Gc [Ex ia Da] IIIC [Ex ia Ma] I

General information

System informationThe module has to be mounted in appropriate backplanes (LB9***) in Zone 2 or outside hazardous areas. Here, observe the corresponding declaration of conformity. For use in hazardous areas (e. g. Zone 2, Zone 22 or Div. 2) the module must be installed in an appropriate enclosure.
Supplementary informationEC-Type Examination Certificate, Statement of Conformity, Declaration of Conformity, Attestation of Conformity and instructions have to be observed where applicable. For information see www.pepperl-fuchs.com.

LB7104A: frequently asked questions

When can LB7104A be shipped?

LB7104A is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.

Can I pick up LB7104A in person?

Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.

Is express delivery available?

Yes — mention it when you request a quote for LB7104A and we'll include express shipping options in our reply.

My factory is down and I need this urgently — can you help?

For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for LB7104A, subject to availability and destination.

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Pepperl Fuchs LB7104APrice and lead time confirmed within 1 business day
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