Honeywell EM940 Marine Radar Level Gauge | SMTS Marine Solutions LLC

SMTS Marine Solutions LLC provides professional marine tank gauging, radar level measurement, inspection, troubleshooting, maintenance, and calibration support for vessels equipped with advanced marine instrumentation such as the Honeywell EM940 Marine Radar Level Gauge.

The Honeywell EM940 is a fixed, non-contact radar level gauge designed for continuous measurement of liquid levels in marine cargo tanks. Utilizing 10 GHz FMCW radar technology, the EM940 delivers reliable tank level and ullage measurement while avoiding direct contact with the cargo.

Precision Tank Gauging for Modern Vessels

Integrated Tank Monitoring Capabilities

The EM940 is more than a conventional tank level sensor. The system is designed to transmit important tank measurement information to a centralized communication and monitoring interface.

Depending on the vessel’s configuration, the system can support monitoring of:

  • Tank level
  • Inert gas pressure
  • Temperature inputs
  • Analog measurement inputs

The integrated inert gas pressure transmitter provides additional measurement capability from a single instrument, helping support centralized monitoring and improved visibility of tank conditions.

Reliable Performance in Marine Conditions

Marine tank gauging equipment must operate reliably under demanding environmental conditions. The EM940 is specified for an operating temperature range of -40°C to +70°C, with product temperatures up to +200°C with special mounting features. The instrument has a maximum pressure rating of 1 bar and an IP66/IP67 protection class.

Its SS316L stainless steel housing provides a robust construction suitable for demanding marine environments.

Safety and Certification

Safety is a critical requirement for equipment installed in hazardous marine environments. The EM940 carries IECEx and ATEX intrinsic safety approvals, with the datasheet specifying II 1 (1) G and EEx ia [ia] IIB or IIC T4 approval information.

Key Features of Honeywell EM940

  • 10 GHz FMCW radar technology
  • Non-contact level measurement
  • High-resolution tank level measurement
  • Measurement range up to approximately 42 metres
  • Instrument accuracy up to approximately ±3 mm
  • Stainless-steel housing
  • IP66/IP67 protection
  • Automatic self-diagnostics
  • Antenna fouling detection
  • Inert-gas pressure measurement capability
  • Temperature measurement inputs
  • Digital communication with tank gauging systems
  • Designed for demanding marine environments

Applications of Honeywell EM940

  • Oil tanker cargo tank level measurement
  • Chemical tanker cargo tank gauging
  • Product tanker tank monitoring
  • Bitumen tanker applications
  • FSO and FPSO tank monitoring
  • Continuous cargo level measurement
  • Automatic tank gauging (ATG) systems
  • Cargo inventory monitoring
  • Tank ullage measurement
  • Loading and unloading operations
  • Cargo transfer monitoring
  • Marine tank management systems
  • Integration with cargo control and monitoring systems
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EM 940 Radar Stock Picture .jpg
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EM 940 Sample picture 1.JPG

Technical Specifications – Honeywell EM940

SpecificationDetails
Measurement Technology10 GHz FMCW Radar
Measurement Range600–42,000 mm
Resolution1 mm
Instrument Accuracy±3 mm
Operating Accuracy±5 mm
Operating Temperature-40°C to +70°C
Product TemperatureUp to +200°C*
Protection RatingIP66 / IP67
Housing MaterialStainless Steel 316L
Process ConnectionPN10 DN250
Maximum Pressure1 bar
AntennaPlanar, 13° aperture
CommunicationEMS Digital Communication

Key Benefits of Honeywell EM940

  • Improved Cargo Measurement Confidence – Supports dependable level information during critical cargo operations.
  • Enhanced Operational Safety – Enables operators to monitor tank levels without manually entering cargo tanks for routine measurements.
  • Reduced Manual Measurement Requirements – Helps minimise reliance on frequent manual ullage checks during normal operations.
  • Better Cargo Management – Provides continuous tank information for more effective loading, unloading, and cargo transfer decisions.
  • Lower Maintenance Exposure – Non-contact measurement reduces mechanical interaction with the cargo.
  • Early Fault Identification – Diagnostic capabilities help operators identify measurement or system issues before they develop into operational problems.
  • Improved Tank Inventory Control – Consistent level information assists with monitoring cargo quantities across multiple tanks.
  • Reduced Operational Downtime – Reliable automated measurement can help minimise interruptions caused by manual gauging or measurement-related issues.
  • Suitable for Harsh Marine Conditions – Designed to support dependable operation in demanding tanker and offshore environments.
  • Integration with Vessel Systems – Tank data can be made available to cargo monitoring and control systems for centralised operation.

Why Choose SMTS Marine Solutions LLC?

SMTS Marine Solutions LLC provides Honeywell EM940 marine radar tank gauging support, inspection, troubleshooting, maintenance and calibration services for tanker and offshore vessels.

  • Experienced Marine Technical Team
  • We specialize in marine environmental compliance systems, marine automation, and onboard vessel support services.
  • Worldwide Vessel Support
  • Our engineers provide global onboard attendance, troubleshooting, calibration, inspection, and technical assistance services.
  • Fast & Reliable Service
  • We deliver prompt marine technical solutions to minimize vessel downtime and improve operational reliability.
  • Complete Marine Support Solutions

For professional support regarding Honeywell EM940 marine radar tank gauging, calibration services, troubleshooting, annual inspections, retrofit solutions, and spare parts supply, contact:

SMTS Marine Solutions LLC

Your trusted marine partner for environmental compliance systems, vessel automation solutions, and professional marine technical support worldwide.

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