Description
Product Introduction
When a process relies on analog transmitter readings, the termination hardware must support the installed input-card and redundancy arrangement. The Emerson VE4033S2B1 is listed in Emerson’s DeltaV M-Series Traditional I/O documentation as a redundant standard termination block for an 8-channel, 4–20 mA HART analog input system. It provides the field termination interface; it should not be confused with the analog input electronics card itself.
For replacement planning, confirm the paired input cards, wiring configuration, terminal-block revision, and the installed DeltaV version. Emerson’s documentation notes that this I/O family has version-related ordering considerations, including a legacy alternative for certain earlier software versions. Verify the exact requirement against the site’s controlled documentation before approving a substitute.
Key Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Emerson |
| Model Number | VE4033S2B1 |
| Product Family | DeltaV M-Series |
| Product Type | Redundant standard I/O termination block |
| I/O Function | Analog input |
| Channel Capacity | 8-channel analog input configuration |
| Input Signal | 4–20 mA |
| Communication Support | HART, with compatible input electronics |
| Hardware Arrangement | Redundant analog input configuration |
| Associated Ordering Code | KJ3222X1-BA1 / 12P2532X142, as listed by suppliers |
| Installation | Compatible DeltaV M-Series I/O assembly |
| Software Compatibility | Check DeltaV version and applicable hardware documentation |
| Condition | Confirm new, unused surplus, or refurbished status |
Technical note: VE4033S2B1 is the termination block, not the complete analog input electronics assembly. Confirm the specific input cards, wiring mode, and redundancy configuration. The 2-wire/4-wire arrangement and field-power return wiring must match the installed circuit design.
Application Scenarios & Pain Points
- Process transmitter integration: Provides termination for compatible 4–20 mA transmitter signals used in pressure, flow, level, and other process measurements.
- Redundant control systems: Supports an analog input architecture designed to maintain availability through redundant input hardware.
- Plant maintenance and upgrades: Allows replacement of the termination component without automatically replacing the entire I/O assembly, provided the fault and compatibility have been established.
- Legacy DeltaV installations: Helps maintenance teams source the correct M-Series component while checking software-version and carrier requirements.

VE4033S2B1
Related Products
These components are related to the DeltaV analog input architecture, but they have different roles.
- VE4003S2B1 — Standard, nonredundant termination block for an 8-channel 4–20 mA HART analog input configuration.
- VE4003S2B2 — Fused I/O termination block for the corresponding analog input family.
- VE4003S2B3 — Four-wire I/O termination block variant.
- VE4003S2B9 — 16-channel, 2-wire analog input terminal block for the Series 2 Plus card.
- VE4033S2B10 — Redundant 16-channel, 2-wire/4-wire analog input terminal block for Series 2 Plus.
- KJ3222X1-BA1 — Associated ordering code listed by suppliers for the VE4033S2B1 redundant analog input termination arrangement; confirm the exact revision before procurement.
The Engineer’s Guide: Field Pitfalls to Avoid
1. Confusing the termination block with the input card. A termination block provides the field wiring interface; the input electronics perform signal acquisition. Confirm which component has failed before ordering.
2. Overlooking redundancy and wiring mode. Check the redundant card arrangement, 2-wire or 4-wire transmitter configuration, field-power return, and terminal assignments. A matching part number does not correct a wiring mismatch.
3. Ignoring DeltaV version requirements. Emerson’s product documentation identifies version-related support conditions for this I/O family. Verify the installed software release and any applicable legacy ordering-code requirements before commissioning.
Frequently Asked Questions
Q1: What is the Emerson VE4033S2B1 used for?
It is a redundant standard termination block for an 8-channel, 4–20 mA HART analog input configuration in DeltaV M-Series Traditional I/O.
Q2: Is VE4033S2B1 an analog input card?
No. It is the termination block associated with the redundant analog input arrangement. Confirm the corresponding electronics cards and terminal hardware when sourcing a replacement.
Q3: Does it support HART transmitters?
It is specified for the 4–20 mA HART analog input family. Actual HART operation depends on the compatible input electronics and the installed system configuration.
Q4: Can replace VE4003S2B1?
Not as a like-for-like replacement without checking the system design. VE4003S2B1 is the standard termination block, whereas is the redundant version. The required hardware arrangement determines the correct selection.
Q5: Is compatible with DeltaV S-Series carriers?
Do not assume so. Emerson identifies M-Series and S-Series as different I/O architectures, and M-Series Traditional I/O cards are not physically compatible with S-Series controller carriers. Select hardware for the actual installed platform.
Q6: What should I check before purchasing?
Confirm the full model number, the associated input cards, wiring mode, carrier or termination assembly, DeltaV version, and required redundancy arrangement. Request label photographs and written condition and warranty details.
Q7: What should be tested after replacement?
Follow the site’s approved maintenance procedure. Verify terminal wiring, transmitter loop current, input readings, HART communication where applicable, diagnostic status, and redundant-system behavior before returning the process loop to service.
Procurement recommendation: For the Emerson , verify that the installed system requires a redundant 8-channel analog input termination block—not a standalone input card or a Series 2 Plus terminal block. Confirm the complete ordering code and wiring arrangement before authorizing the replacement.
