Digitising Hazardous Area Operations Safely

Sierra’s Connected Worker Solution for Zone 1 hazardous areas enables real-time digital operations, secure communications, and seamless control system integration inside explosive environments. Engineered to meet ATEX and IECEx compliance, this solution empowers field operators with intrinsically safe mobility, live plant visibility, and faster decision-making—without compromising safety or regulatory standards.

From DCS connectivity to digital inspections and alarm visibility, Sierra delivers a fully engineered, industrial-grade hazardous area digitalisation platform for Oil & Gas, Chemicals, Pharma, and Process Industries.

Solution Overview

Sierra’s Connected Worker Solution transforms hazardous area field operations into a secure, real-time digital ecosystem by integrating:

• ATEX Zone 1 Wi-Fi Infrastructure
• Intrinsically Safe Tablets & Smartphones
• DCS, MES,  & Historian Connectivity
• Digital Workflows, Inspections & Alarm Systems

This enables operators to access live plant data, execute digital rounds, report maintenance issues, and communicate instantly from inside classified zones—eliminating manual paperwork and unsafe travel between control rooms and field locations.

Core Capabilities

ATEX / IECEx Certified Wireless Infrastructure

• Zone 1 certified industrial Wi-Fi access points
• Redundant and secure OT network architecture
• Seamless roaming across hazardous plant areas

Intrinsically Safe Mobility Devices

• ATEX Zone 1 tablets and smartphones
• Industrial-grade, rugged, explosion-protected hardware
• Push-to-Talk (PTT), video, camera, and barcode scanning support

Control System Integration

• Native connectivity with:
  • DCS (Distributed Control Systems)
  • MES (Manufacturing Execution Systems)
  • Plant Historians & SCADA
• Secure OT/IT network segmentation and cybersecurity design

Digital Field Operations

Digital Operator Rounds & Inspections

• Paperless checklists and guided workflows
• Timestamped, geo-tagged field data capture
• Automated compliance and audit reporting

Live Alarms & Process Visibility

• Real-time alarm notifications on mobile devices
• Live trends, KPIs, and equipment health monitoring
• Faster escalation and remote collaboration

Maintenance & Safety Reporting

• Instant fault reporting with photos and videos
• Direct CMMS work order creation
• Digital permit-to-work and safety documentation

Key Benefits

• Faster Field Response
  Real-time visibility and communication reduce reaction time to alarms and failures.
• Safer Hazardous Area Operations
  Fully compliant ATEX / IECEx certified infrastructure and devices.
• Reduced Downtime & Paperwork
  Digital workflows eliminate manual reporting and delays.
• Improved Compliance & Audit Readiness
  Automated digital records, logs, and reports.
• Enhanced Operational Efficiency
  Operators stay connected without leaving the field.

Industries Served

• Oil & Gas (Upstream, Midstream, Downstream)
• Pharmaceuticals & Biopharmaceuticals
• Chemicals & Specialty Chemicals
• Refineries & Petrochemicals
• Process Manufacturing Plants

Digitise Your Hazardous Operations with Confidence

Deploy a future-ready Connected Worker Platform engineered for safety, compliance, and performance in the world’s most demanding industrial environments.

Talk to Sierra’s ATEX & Industrial Digitalisation Experts Today