Description

Product Description

Overview

The DeltaV S-Series Module (FM21UKEX0017U) by Emerson is designed for safe, reliable operation in hazardous areas. Supporting both Zone 2 and Class I Division 2 classifications, this device provides flexible I/O connectivity while complying with strict industrial safety standards. Its robust construction and advanced keying system ensure compatibility and secure operation in demanding process environments

Installation and Safety Guidelines

• Field power (local or bussed) must be removed before connecting or removing the device

• Energy-limited nodes require an I/O loop assessment before installation

• The module cannot be installed or removed while the system is energized

• A rotary keying system ensures correct alignment between I/O cards and terminal blocks

• Terminal blocks must be keyed according to the I/O card in use

• Refer to documentation:

• 12P5404 “DeltaV™ Scalable Process System Zone 2 Installation Instructions”

• “DeltaV™ S-series and CHARMs Hardware Installation” manual

Maintenance and Calibration

• No user-serviceable parts inside

• Disassembly is strictly prohibited

• Calibration is not required

Application Scenarios

The module is suitable for signal isolation and I/O integration in hazardous industrial areas such as chemical processing plants, oil & gas facilities, and energy production sites.

Frequently Asked Questions (FAQ)

Q: Can this module be removed while system power is on?
A: No. It must only be removed or installed with power off, unless the area is verified non-hazardous.

Q: Is calibration required for this module?
A: No calibration is required; the device contains no user-serviceable parts.

Q: How does the keying system work?
A: A rotary keying system ensures the terminal block matches the corresponding I/O card after installation, preventing misalignment.

Technical Specifications

Parameter	Specification
Certifications	II 3G Ex nA [nL] IIC Gc, II 3G Ex ec [ic] IIC Gc, Class I Div.2 GP. A,B,C,D, Class I Zone 2 AEx/Ex ec [ic] IIC Gc
Local Bus Power	12 VDC, 150 mA
Bussed Field Power	24 VDC, 600 mA
Field Circuit	24 VDC, 30 mA per channel
Operating Temperature	-40 °C to +70 °C
Shock	10g, half-sine, 11 ms
Vibration	1 mm peak-to-peak 2–13.2 Hz; 0.7 g 13.2–150 Hz
Airborne Contaminants	ISA-S71.04 Class G3
Relative Humidity	5–95%, non-condensing
Terminal Block Key Position	A2
Maintenance	No user-serviceable parts; calibration not required

Specifications

• Brand: EMERSON

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems