Description

The EMERSON VE3008 is an 8-channel digital input terminal block designed for use in Emerson’s DeltaV™Distributed Control System(DCS)and DeltaV SIS™(Safety Instrumented System)platforms.It interfaces dry contact or powered discrete field signals—such as pressure switches,level alarms,emergency pushbuttons,and fire/gas detectors—to the DeltaV I/O subsystem.Housed in a compact,DIN-rail mountable form factor,the VE3008 supports intrinsically safe(IS)wiring,offers individual channel diagnostics,and is certified for use in SIL 2 and SIL 3 applications per IEC 61508/61511.Widely deployed in oil&gas refineries,chemical plants,LNG terminals,and power generation facilities,the VE3008 ensures reliable signal acquisition for both process control and critical safety shutdown functions.

Application Scenarios

At a petrochemical facility in Texas,a high-pressure alarm failed to trigger during a reactor overpressure event due to a degraded field contact.The VE3008 module immediately flagged the channel with a“wet/dry fault”diagnostic via DeltaV Diagnostics,alerting operators before a trip was needed.During the next turnaround,the faulty switch was replaced—but the VE3008’s early detection prevented a potential layer of protection failure,maintaining compliance with OSHA PSM and API standards.

Parameter

Main Parameters Value/Description

Product Model VE3008

Manufacturer Emerson Automation Solutions(formerly part of Fisher-Rosemount)

Product Category Digital Input Terminal Block for DeltaV I/O System

Channels 8 isolated digital inputs

Input Type

Dry contact(passive)

Wet contact(powered)–compatible with 24 VDC field devices

Accepts NAMUR sensors when used with appropriate interface(e.g.,isolators)||Input Voltage|Nominal 24 VDC(range:18–30 VDC for wet inputs)||Input Current|~2–7 mA per channel(typical for dry contact sensing)||Isolation|Channel-to-bus isolation(≥500 VAC),optional channel-to-channel||Diagnostic Features|

Individual LED per channel(ON=signal active)

Module status LED(green=OK,red=fault)

Open-circuit/short-circuit detection

Wet/dry contact validation(detects incorrect wiring)

Full diagnostics reported to DeltaV Operate and AMS Device Manager||Safety Certification|

IEC 61508:SIL 3(system level)

IEC 61511:SIL 3(process industry)

ATEX/IECEx:Ex ia IIC T6 Ga(for use in Zone 0 with IS barrier)

FM/CSA:Intrinsically safe for Class I,Div.1||Mounting|Snap-on to DeltaV M-series I/O carrier(e.g.,MTL5000 or DeltaV-native backplane)||Operating Temperature|–20°C to+70°C||Approvals|CE,UL 61010-1,CSA C22.2 No.61010,RoHS compliant||Dimensions|Approx.18 mm(W)×110 mm(H)×120 mm(D)–standard 8-channel width||Compatibility|DeltaV M-series I/O systems(e.g.,with MIO1608,MIOC1608 carriers)|

Note:The VE3008 is a terminal block only—it requires a compatible DeltaV I/O carrier module to communicate with the controller.

Technical Principles and Innovative Values

Innovation Point 1:Smart Diagnostics at the Terminal Level

Unlike basic relay interfaces,the VE3008 validates signal integrity(e.g.,detects if a“dry contact”is accidentally wired to a live voltage),reducing nuisance trips and improving safety loop reliability.

Innovation Point 2:Seamless Integration with DeltaV SIS

When used in a DeltaV SIS chassis,the VE3008 participates in hardware-based voting logic and periodic proof testing—critical for maintaining SIL compliance without manual intervention.

Innovation Point 3:Intrinsic Safety by Design

Built-in current-limiting circuitry allows direct connection to field devices in explosive atmospheres—eliminating the need for external Zener barriers in many applications.

Innovation Point 4:Modular&Hot-Swappable

Can be replaced under power in non-SIS applications,minimizing downtime during maintenance.

Application Cases and Industry Value

LNG Export Terminal(Australia):

Over 200 VE3008 modules monitor ESD valves and fire dampers.Their SIL 3 certification enabled a single-platform architecture—reducing engineering costs by$1.2M vs.separate PLC/SIS systems.

Pharmaceutical Plant(Germany):

Used in cleanroom HVAC interlocks;diagnostic data integrated into Plantweb™for predictive maintenance on door switches and airflow sensors.

Refinery Turnaround(USA):

During a 72-hour outage,technicians replaced 12 aging VE3008 units in 20 minutes each—thanks to color-coded wiring and plug-in design—keeping the schedule on track.

Related Product Combination Solutions

I/O Carriers:

MIO1608(16-channel digital I/O carrier)

MIOC1608(for intrinsically safe applications)

Field Devices:

Pressure switches(e.g.,Rosemount 3051S)

Emergency stop buttons

Flame detectors(e.g.,Det-Tronics X3300)

System Platform:

DeltaV DCS(for basic process control)

DeltaV SIS(for safety shutdown logic)

Engineering Tools:

DeltaV Explorer

AMS Device Manager(for diagnostics)

SIS Suite(for SIL verification)

Complementary Modules:

VE3016(16-channel version)

VE4008(digital output)

VS1008(analog input)

Installation,Maintenance,and Full-Cycle Support

Installation Best Practices:

Use shielded,twisted-pair cable for each input;ground shield at carrier end only.

For SIL applications,follow DeltaV SIS installation guidelines(separate routing from non-SIS wiring).

Torque terminal screws to 0.5 N·m to ensure reliable contact.

Maintenance Guidelines:

Perform partial stroke tests via DeltaV SIS to validate loop functionality without full trip.

Monitor AMS alerts for“degraded contact resistance”trends.

Replace units showing intermittent LED flicker—even if system appears functional.

We offer fully tested,refurbished VE3008 modules that include:

Continuity and isolation test per IEC 61131-2

Diagnostic LED and fault simulation

Wet/dry contact validation test

Visual inspection for terminal wear or corrosion

Each unit comes with a 12-month warranty,test report,and compatibility verification for your DeltaV system.

Don’t compromise safety with untested spares.Contact us for a certified-ready EMERSON VE3008—ensuring your safety instrumented loops remain reliable,compliant,and audit-ready.Whether you’re stocking for turnaround or responding to a fault,we deliver rigorously validated modules with global support.

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