Cognesense - Measure, Monitor, Protect

MCG 1095

The MCG 1095 Wireless Level Alarm Probe is designed for tank farm operators, refinery and chemical plant engineers, terminal safety teams, compliance managers, and EPC contractors who require reliable overfill protection for hazardous liquid storage.

The probe provides wireless, fully self-testing alarm protection to help prevent spills and maintain regulatory compliance.

Unlike conventional alarm probes that only test electrical continuity, the MCG 1095 physically lifts its displacer during each self-test. This verifies both the mechanical and electrical components of the alarm system, ensuring the probe will operate correctly under real high-level conditions rather than only simulated test scenarios.

The probe communicates wirelessly over long distances and operates using a long-life lithium battery, eliminating the need for trenching or signal cabling. When paired with the MCG 7030 Touch Panel Alarm Monitor, the probe supports:

Automated scheduled testing
Remote diagnostics
Alarm reporting
Continuous battery health monitoring

Constructed from rugged stainless steel with corrosion-resistant components, the MCG 1095 is built for demanding industrial environments. Optional nylon or graphite displacers and explosion-proof housings certified for Class I, Division 1 hazardous areas provide dependable performance in facilities handling flammable, hazardous, or high-value liquids.

MCG 1095 Wireless Level Alarm Probe

Details

The MCG 1095 is designed for a wide range of tank safety and alarm applications, particularly in facilities where traditional wired installations would be costly or difficult to maintain.

The wireless architecture reduces installation complexity while maintaining the same level of mechanical reliability as wired alarm probes.

Because the probe performs true mechanical self-testing, operators can confirm that the displacer, switch mechanism, and alarm circuit are functioning correctly during every test cycle. This provides an additional level of confidence for facilities responsible for regulatory compliance and environmental protection.

Applications

Overfill Protection: Provides verified high-level and high-high-level alarms to prevent spills, protect personnel, and avoid environmental incidents.
Regulatory Compliance: Supports fire code and industry requirements for independent overfill alarms in hazardous liquid storage applications.
Remote or Distributed Tank Farms: Wireless communication eliminates trenching and long cable runs, reducing installation costs for remote or geographically dispersed tanks.
Hazardous Fluid Storage: Suitable for petroleum products, chemicals, solvents, and corrosive liquids requiring explosion-proof instrumentation.
Pump and Valve Shutdown Control: Provides alarm signals that can trigger pump shutdown or valve closure when tank levels reach defined limits.
Emergency Shutdown Systems: Functions as an independent alarm point within layered protection systems and API 2350 overfill protection architectures.
Idle or Seasonal Tanks: Mechanical self-testing ensures alarm readiness even when tanks remain unused for extended periods.
Retrofit and Modernization Projects: Allows facilities to upgrade existing tanks with modern wireless alarm capability without installing new wiring or modifying tank penetrations.

Technical Specifications and Key Features

Parameter

Specification

Mounting Connections

½″ or 2″ NPT; 1½″, 2″, 4″, or 6″ flanges

Alarm Types

High, High-High, Low

I/O Options

NC/NO, L&J, NC/NC (5V, 100 mA)

Self-Testing

Automatic (L&J Tankway), Manual (24 VDC), or none

Materials

304 stainless steel housing (standard); nylon displacer (standard); optional 316 stainless steel or graphite displacers

Power Supply

Lithium battery with more than one year typical life

System Integration

Compatible with MCG 7030 Touch Panel Alarm Monitor and MCG 3900 Inventory Management System

Safety / Compliance

Explosion-proof construction meeting state fire code requirements for independent alarm systems

2026 COST ESTIMATE

Support

If you have questions not covered here, please contact support for assistance.

What is a “true self-test,” and why is it better than a standard electronic test?

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A standard electronic test only verifies the electrical circuit is intact. The MCG 1095’s “true self-test” physically moves the displacer to confirm that both the mechanical and electrical components are functioning correctly. This physical verification provides a higher level of assurance that the alarm will work when a real overfill condition occurs.

How does wireless communication improve installation and operation?

The wireless function eliminates the need for expensive and time-consuming trenching, conduit runs, and wiring to each tank. This allows for quicker, less disruptive, and more cost-effective installation, especially for retrofits. It also enhances safety by reducing the need for personnel to work on high-voltage wiring in hazardous zones.

How long does the battery last and how is battery health monitored?

The probe is powered by a long-life lithium battery, typically lasting over a year. The MCG 1095 continuously monitors and reports its battery status to the connected system, such as the MCG 7030 Touch Panel. You receive an alert well in advance of a low-power condition, ensuring the probe is always operational and ready to protect your assets.

Is the MCG 1095 suitable for hazardous locations?

Yes. It is certified for safe operation in hazardous, flammable, and chemical storage environments.

What displacer materials are available?

Standard nylon, or optional stainless steel or graphite displacers for specific gravity and chemical compatibility requirements.