Product Core Brief

• Model: VE4003S2B3
• Brand: Emerson (DeltaV)
• Series: DeltaV Series 2 DCS
• Core Function: 16-channel analog input module accepting 4-20 mA signals with HART communication for precise process variable measurement.
• Product Type: Analog Input (AI) I/O Module
• Key Specs: 16 Channels | 4-20 mA | HART Protocol | Series 2
• Condition: New Surplus / OEM Original

Emerson VE4003S2B3

Key Technical Specifications

• Module Type: Analog Input Card (Series 2)
• Part Number:
• Alternate Part Numbers: 12P0680X122
• Channel Count: 16 Channels
• Input Signal: 4-20 mA Analog
• Protocol Support: HART (Highway Addressable Remote Transducer)
• System Compatibility: Emerson DeltaV DCS, Series 2 I/O Carriers
• Mounting: Series 2 Carrier Slot
• Diagnostic Features: Channel status indication, fault monitoring, HART device diagnostics
• Certification: CE (verify specific certifications for your application)

Product Introduction

The Emerson is a high-density analog input module designed for the DeltaV Series 2 distributed control system. It provides 16 channels of 4-20 mA analog inputs with full HART protocol support, enabling the DCS to precisely measure process variables such as pressure, temperature, flow, and level from intelligent field transmitters.

As part of the DeltaV Series 2 I/O family, this module delivers the robust diagnostics and fault-safe capabilities expected from Emerson’s flagship DCS platform. The integrated HART communication allows operators to access additional device information, perform remote configuration, and execute predictive maintenance without interrupting the primary 4-20 mA control signal. Its compact form factor maximizes I/O density within the carrier, reducing cabinet footprint while maintaining measurement accuracy for process automation applications.

QA & Testing SOP

Analog input modules must accurately measure and transmit process signals without drift or noise. We verify channel precision and HART communication integrity.

1. Anti-Counterfeit & Visual Audit: We inspect the Emerson/DeltaV silkscreen, verify the part number, and check the backplane connector and front panel for physical damage or corrosion.
2. Backplane Enumeration Test: We install the module in a DeltaV Series 2 test carrier to verify it correctly enumerates and communicates with the controller.
3. Analog Signal Accuracy Test: We inject calibrated 4-20 mA signals across the full range and verify each channel reports accurate values within specification.
4. HART Communication Validation: We connect HART-capable test transmitters and verify the module successfully reads device variables, tags, and diagnostic information.
5. ESD Safe Packaging: Precision analog front-end ICs are highly ESD sensitive. We pack in anti-static shielding bags with desiccant to prevent latent semiconductor damage.
   

   Emerson VE4003S2B3

Installation Pitfalls & Guide

❗ HART Compatibility: While this module supports HART, not all 4-20 mA transmitters are HART-enabled. Verify your field devices support HART protocol before expecting digital communication. Non-HART devices will still provide analog readings but no diagnostic data.

❗ Loop Resistance: Ensure the total loop resistance (transmitter + cable + module input impedance) falls within the HART specification. Excessive loop resistance can cause HART communication failures even if the 4-20 mA signal reads correctly.

❗ Signal Grounding: Analog signals are susceptible to ground loops. Use shielded twisted-pair cable and ground the shield at the DCS cabinet end only. Grounding at both ends introduces 50/60 Hz noise that degrades measurement accuracy.

❗ Power Removal Before Service: Always remove field power and backplane power before inserting or removing this module. While DeltaV Series 2 supports hot-swap, only follow proper procedures to prevent transient faults and field device misoperation.

Replacement SOP:

1. Pre-Install: Document the current channel configuration, scaling parameters, and HART device tags; place the associated control logic in bypass/maintenance mode.
2. Removal: Remove field power; disconnect field wiring (label every wire!); release the module from the carrier.
3. Install: Slide the new into the designated Series 2 slot; ensure firm backplane seating; reconnect field wiring.
4. Power-On Test: Restore power; verify the controller recognizes the module; inject a known 4-20 mA signal to confirm accuracy; verify HART devices report online before removing bypass.

Technical FAQ

The suffix (B1 vs B3) typically denotes a hardware revision or manufacturing variant. Both are 16-channel analog input modules for the DeltaV Series 2 platform. They are generally functionally compatible, but always verify with your DeltaV configuration software and ensure the hardware revision matches your system requirements.

Can this module read non-HART 4-20 mA transmitters?
Yes. The will accurately measure standard 4-20 mA signals from any transmitter, HART or non-HART. The HART functionality is an additional capability, not a requirement for basic analog measurement.

How many HART devices can communicate simultaneously?
HART is a half-duplex protocol, meaning only one device can communicate at a time per channel. The module polls devices sequentially. With 16 channels, each supporting multiple HART devices (in multidrop mode), the polling cycle time increases with device count. Plan your network accordingly.

Does this module support Foundation Fieldbus?
No. The is a traditional 4-20 mA/HART analog input module. For Foundation Fieldbus H1 devices, you would need a dedicated fieldbus interface module such as the KJ3242X1-BA1.

Why is this sold as new surplus?
This unit was pulled from sealed OEM overstock or an unfulfilled project before installation. We test it on our DeltaV test carriers to verify channel accuracy and HART functionality, but we aren’t replacing internal components. You’re getting unused factory silicon with original manufacturing tolerances at a fraction of the active OEM list price.