Product Description
📘 Product Overview
| Field | Details |
|---|---|
| Manufacturer | Emerson |
| Model Number | SE4001S2T2B4 |
| Product Type | S-series Discrete Input Card, 32-channel, 24V DC, Dry Contact with Discrete 32-channel Terminal Block |
| Function | Provides 32 discrete input channels for 24V DC dry contact signals |
| System Compatibility | DeltaV S-series controllers (SX, SQ), DeltaV v11.3.1 and higher |
| Included Components | Discrete Input Card (32-channel, 24V DC, Dry Contact), Discrete 32-channel Terminal Block |
⚙️ Hardware Specifications
| Feature | Specification |
|---|---|
| Number of Channels | 32 |
| Detection Level for On | >2 mA |
| Detection Level for Off | <0.25 mA |
| Input Impedance | 5 kΩ (approximate) |
| Wetting Voltage | 24V DC |
| LocalBus Current | 50 mA typical, 75 mA maximum (12V DC nominal) |
| Field Circuit Power | 150 mA maximum at 24V DC (+20%/-15%) |
| Isolation | Each channel optically isolated from the system, factory tested to 1500V DC |
| Termination Fault Detection | Not available with Discrete 32-channel Terminal Block; requires 40-pin Mass Terminal Block with S-series Mass Connection Solutions or P+F HIC IS barriers |
| I/O Card Keying | B3 |
🔌 Communication and Configuration
| Feature | Specification |
|---|---|
| Configurable Channel Types | - Discrete Input: Dry contact or discrete state sensor changing <2 Hz - Pulse Count: Pulse train <120 Hz |
| Configuration | Auto-sensed by DeltaV controller; configured via DeltaV Explorer |
| Communication | Interfaces with DeltaV DCS for control and diagnostics |
🔁 Redundancy Features
| Feature | Details |
|---|---|
| Redundancy Option | Available as redundant pair (model SE4031S2T2B7, includes 2 DI Plus Cards with 40-pin Mass Terminal Block) |
| Redundancy Setup | Autosensed by DeltaV system; requires redundant 40-pin Mass Terminal Block |
| Switchover Triggers | Hardware failure, communication failure, field wiring fault, manual switch via Diagnostics Explorer |
| Switchover Time | Within two scans of the I/O bus; make-before-break contacts ensure process continuity |
| Standby Operation | Standby card scanned by controller; health and status reported via Diagnostics Explorer |
| Notification | Hardware alerts report integrity errors; switchover events logged in Event Chronicle |
| Replacement | Auto-commissioned standby card; replaceable under power in safe areas, follow hazardous area procedures |
🌡️ Environmental Specifications
| Parameter | Specification |
|---|---|
| Operating Temperature | -40 to 70 °C (-40 to 158 °F) |
| Storage Temperature | -40 to 85 °C (-40 to 185 °F) |
| Relative Humidity | 5 to 95%, non-condensing |
| Airborne Contaminants | ISA-S71.04-1985 Class G3, conformal coating |
| Protection Rating | IP20 |
| Shock | 10 g ½-sine wave for 11 ms |
| Vibration | 1 mm peak-to-peak (2–13.2 Hz), 0.7 g (13.2–150 Hz) |
✅ Certifications
| Standard | Details |
|---|---|
| CE | EMC - EN 61326-1 |
| FM (USA) | Class I, Division 2, Groups A, B, C, D, T4 |
| cFM (Canada) | Class I, Division 2, Groups A, B, C, D, T4 |
| ATEX | II 3G Ex ec IIC T4 Gc, II 3G Ex nA nC IIC T4 Gc |
| IEC-Ex | II 3G Ex ec IIC T4 Gc, II 3G Ex nA nC IIC T4 Gc |
| Marine | IACS E10, ABS Certificate of Design Assessment, DNV Marine Certificate |
| Installation Instructions | Class I Division 2: 12P5402; Zone 2: 12P5404 |
🛠️ Installation and Configuration
| Feature | Details |
|---|---|
| Installation | Plugs into any slot on 8-wide I/O carrier; snaps onto T-DIN rail |
| Removal/Insertion | Cannot be removed/inserted with system power energized; field power must be removed; non-sparking field circuits must be de-energized |
| Terminal Block Compatibility | Discrete 32-channel Terminal Block, 40-pin Mass Terminal Block (simplex), Redundant 40-pin Mass Terminal Block |
| Maintenance | No user-serviceable parts; no calibration required |
📦 Ordering Information
| Description | Model Number |
|---|---|
| Discrete Input, 32-channel, 24V DC, Dry Contact | SE4001S2T2B4 (with Discrete 32-channel Terminal Block) |
| Discrete Input, 32-channel, 24V DC, Dry Contact | SE4001S2T2B5 (with 40-pin Mass Terminal Block) |
| Discrete Input, 32-channel, 24V DC, Dry Contact | SE4001S2T2B5 (with 40-pin Mass Terminal Block, including 2 x 16-channel DI Mass Connection Boards) |
| Redundant Discrete Input, 32-channel, 24V DC, Dry Contact | SE4031S2T2B7 (2 x DI Plus Cards with 40-pin Mass Terminal Block) |
| Spare Fuse (250V 2A) | KJ4010X1-BC1 (Box of 20) |