Separator Differential Pressure Monitoring (Filter Fouling & Process Stability) — ATEX

Avoids process upsets, reduces maintenance downtime

Differential Pressure (ΔP)

Quick Overview

Problem

In upstream oil & gas separation systems, fouled filters, demisters, or internals gradually increase pressure losses, reducing separation efficiency and creating safety and production risks. Manual inspection is intermittent and reactive.

Solution

SENSAiO’s ATEX-certified differential pressure (ΔP) sensors continuously monitor pressure drop across separators, filters, and internals to detect fouling, blockage, or abnormal process behaviour in real time.

Value

Improved separation efficiency • Reduced unplanned shutdowns • Predictive maintenance • Lower OPEX

ATEX

Zones 0–2 • Ex ia IIC T4 Gb certified differential pressure sensors

The Operational Challenge

Oil & gas separators are critical assets used to split multiphase production into oil, gas, and water streams. Their performance depends heavily on clean internals, stable flow conditions, and controlled pressure losses.

Over time, separators commonly experience:

  • Filter or demister fouling
  • Wax, sand, or scale accumulation
  • Progressive blockage of internals
  • Reduced effective cross-sectional flow area

These phenomena increase differential pressure (ΔP) across the separator or its internal elements.

Typical monitoring practices rely on:

  • Periodic manual readings
  • Visual inspection during shutdowns
  • Reactive maintenance after performance degradation

This approach leads to:

  • Undetected efficiency losses over weeks or months
  • Higher pressure drop increasing upstream backpressure
  • Reduced production throughput
  • Elevated risk of liquid carryover or gas entrainment

In ATEX-classified upstream environments, frequent manual inspection increases personnel exposure and operational risk.

Why Differential Pressure Monitoring Matters

Differential pressure is one of the most reliable indicators of separator health.

Continuous ΔP monitoring allows operators to:

  • Detect early fouling of filters or demisters
  • Identify abnormal accumulation of solids or liquids
  • Correlate pressure losses with flow rate and composition changes
  • Anticipate maintenance before separator efficiency degrades

Unlike absolute pressure alone, ΔP directly reflects flow resistance inside the separator.

Rising differential pressure typically indicates:

  • Progressive clogging of internals
  • Reduced separation efficiency
  • Increased energy losses across the system

By trending ΔP over time, operators gain predictive insight into separator condition — enabling planned intervention instead of emergency shutdowns.

SENSAiO Solution

SENSAiO provides a wireless, intrinsically safe differential pressure monitoring solution designed for upstream separation systems.

Core Components

Differential Pressure Sensor (ATEX Ex ia IIC T4 Gb)

High-accuracy ΔP measurement suitable for gas, oil, and multiphase service. Designed for harsh upstream conditions with corrosion-resistant materials.

Wireless Communication

Supports LoRaWAN, Modbus, and MQTT, enabling seamless integration with SCADA and process monitoring platforms.

Power & Installation

Battery-powered and compact, eliminating cabling and reducing installation complexity in hazardous areas.

Operational Benefits

  • Early detection of fouling and blockage
  • Stable separator performance over time
  • Reduced unplanned shutdowns
  • Improved production throughput consistency

Results and ROI

Metric Before After
Separator visibility Intermittent Continuous
Fouling detection Late Early
Shutdown planning Reactive Predictive
Maintenance efficiency Low Improved

ATEX Compliance and Safety

All differential pressure sensors for separator monitoring comply with:

  • Ex II 2 G Ex ia IIC T4 Gb (Zones 0–2)
  • IECEx certification
  • ATEX Directive 2014/34/EU

The intrinsically safe design allows installation on live process equipment without shutdown, supporting safe operation in explosive atmospheres.

Integration and compatibility

Protocols

LoRaWAN, Modbus RTU/TCP, MQTT, REST API

Systems

SCADA, DCS, production and integrity monitoring platforms

Vendors

Honeywell, ABB, Emerson, Schneider

Cybersecurity

AES-128 encrypted communication with VPN-secured transport

FAQ - Common Questions

Are Sensa.io sensors compatible with any gateway or network?

Yes, they connect to any LoRaWAN or MQTT infrastructure (Kerlink, Cisco, Milesight, MultiTech, etc.) for flexible integration with existing SCADA systems.

What ATEX certifications apply to Sensa.io devices?

All hazardous-area models are certified Ex II 2 G Ex ia IIC T4 Gb and IECEx approved for Zones 0–2.

What is the typical battery life?

Up to 10 years at 15-minute intervals, depending on signal strength and environment.

How are the sensors integrated into existing systems?

Through standard protocols — LoRaWAN, Modbus, MQTT, REST API — no proprietary middleware needed.

How does predictive maintenance reduce OPEX?

Early anomaly detection reduces emergency interventions by 30–40 %, extends equipment life and lowers energy costs.

What does the Sensa.io Valve Position Sensor actually measure?

The device detects real-time valve position states—open, closed, or intermediate—with high accuracy. It continuously sends this information wirelessly to your monitoring dashboard.

Can this sensor detect partial valve movement or stuck valves?

Yes. The sensor identifies irregular patterns such as partial movement, delayed response, or stuck valves, enabling early maintenance before failure occurs.

Is this sensor suitable for manual, motorized, and actuated valves?

Yes. It supports a wide range of valve types including ball, gate, butterfly, actuator-driven, and manual valves.

How fast does it update the valve position?

You can configure the reporting interval—from seconds to minutes—depending on your operational and battery needs.

How long does installation take?

Most installations take under 10 minutes. The sensor mounts using brackets or clamps without modifying existing valves.

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