Consilium Salwico ST450EC Fixed Electrochemical Gas Detector

Overview

Consilium Salwico ST450EC Fixed Electrochemical Gas Detector for Marine Gas Detection Systems

The Consilium Salwico ST450EC Fixed Electrochemical Gas Detector is an advanced fixed gas detector designed for continuous monitoring of oxygen (O₂), toxic gases, and hydrogen (H₂) in marine, offshore, and industrial environments. Built for hazardous areas, the ST450EC features a replaceable electrochemical sensor, integrated graphic LCD display, capacitive touch-style controls, self-diagnostics, and both 4–20 mA analogue and RS485 Modbus RTU communication. It is certified for ATEX and IECEx hazardous locations, making it suitable for demanding marine safety applications.

At Ship Care Service, we supply genuine Consilium Salwico ST450EC Fixed Electrochemical Gas Detectors, replacement sensors, spare parts, calibration accessories, and technical support for commercial ships, offshore platforms, FPSOs, refineries, and industrial facilities worldwide.

What is the Consilium Salwico ST450EC Fixed Electrochemical Gas Detector?

The Consilium Salwico ST450EC is a versatile fixed gas detector that uses electrochemical sensing technology to continuously monitor oxygen and toxic gases. Depending on the installed sensor, it can detect:

• Oxygen (O₂)

• Hydrogen Sulphide (H₂S)

• Carbon Monoxide (CO)

• Hydrogen (H₂)

The detector continuously measures gas concentration and transmits the measured value to the connected gas detection control system through a 4–20 mA analogue output or RS485 Modbus RTU communication. A built-in graphic display provides local indication of gas concentration, detector status, diagnostics, and alarm conditions.

Why is the ST450EC Important?

Continuous monitoring of toxic gases and oxygen concentration helps prevent hazardous situations onboard ships and offshore installations.

The ST450EC helps operators:

• Detect toxic gas leaks at an early stage

• Monitor oxygen deficiency or enrichment

• Protect personnel working in hazardous areas

• Improve confined space safety

• Support regulatory compliance

• Reduce operational risks

• Improve emergency response

How the Consilium Salwico ST450EC Works

The ST450EC continuously samples ambient air using a replaceable electrochemical sensor.

Step 1 – Air Sampling

Ambient air enters the sensing chamber through the gas sensor.

Step 2 – Electrochemical Detection

The installed electrochemical sensor continuously measures the target gas concentration and generates a proportional electrical signal.

Step 3 – Signal Processing

Internal electronics convert the sensor output into:

• 4–20 mA analogue signal

• RS485 Modbus RTU communication

allowing seamless integration with gas detection control systems.

Step 4 – Alarm Activation

If gas concentration exceeds programmed alarm limits or oxygen levels move outside safe limits, the connected control system activates:

• Audible alarms

• Visual alarms

• Remote alarm systems

• Safety shutdown functions (where configured)

Key Features

Multi-Gas Capability

The ST450EC supports replaceable electrochemical sensors for:

• Oxygen (O₂)

• Hydrogen Sulphide (H₂S)

• Carbon Monoxide (CO)

• Hydrogen (H₂)

Graphic LCD Display

A backlit graphic display provides:

• Live gas concentration

• Detector status

• Alarm indication

• Diagnostic information

• Calibration menus

Capacitive Touch Controls

The detector features capacitive navigation controls, allowing technicians to access menus and perform calibration without magnetic tools.

Replaceable Sensor Design

The sensing element can be replaced independently, reducing maintenance costs and minimizing downtime.

Self-Diagnostics

Integrated self-diagnostic functions continuously monitor detector health and notify operators of system faults or sensor issues.

Hazardous Area Approved

Certified for hazardous locations with:

• ATEX Approval

• IECEx Approval

• Ex d / Ex t protection suitable for Zone 1/2 and Zone 21/22 installations.

Dual Communication

Supports:

• 4–20 mA Analogue Output

• RS485 Modbus RTU Communication

for easy integration with marine automation and gas detection systems.

Typical Applications

The Consilium Salwico ST450EC is commonly installed on:

• Oil Tankers

• Chemical Tankers

• LNG Carriers

• LPG Carriers

• Offshore Platforms

• FPSOs

• Drill Ships

• Refineries

• Engine Rooms

• Pump Rooms

• Compressor Rooms

• Battery Rooms

• Cargo Pump Areas

• Hazardous Process Areas

Industries We Serve

The ST450EC is widely used across:

• Marine Shipping

• Offshore Oil & Gas

• Shipbuilding

• Petrochemical Industry

• Refineries

• Water Treatment Plants

• Pharmaceutical Industry

• Food Processing

• Steel Industry

• Industrial Gas Detection

Who Uses the Consilium Salwico ST450EC?

Typical users include:

• Chief Engineers

• Electrical Technical Officers (ETO)

• Marine Engineers

• Safety Officers

• Cargo Officers

• Technical Superintendents

• Shipowners

• Ship Management Companies

• Offshore Maintenance Engineers

• Industrial Safety Engineers

Why Choose the Consilium Salwico ST450EC?

Marine and industrial operators choose the Consilium Salwico ST450EC Fixed Electrochemical Gas Detector because it provides:

• Multi-gas monitoring capability

• Replaceable electrochemical sensors

• Graphic LCD display

• Touch-style user interface

• Built-in diagnostics

• 4–20 mA and Modbus communication

• Hazardous area approvals

• Reliable long-term operation in demanding environments.

Technical Overview

The Consilium Salwico ST450EC Fixed Electrochemical Gas Detector is an intelligent fixed gas detection device developed for continuous monitoring of oxygen (O₂) and various toxic gases in marine, offshore, and industrial applications. Depending on the installed electrochemical sensor, the detector can monitor gases such as:

• Oxygen (O₂)

• Hydrogen Sulphide (H₂S)

• Carbon Monoxide (CO)

• Hydrogen (H₂)

The detector continuously samples the surrounding atmosphere using a replaceable electrochemical sensing cell. The measured gas concentration is processed by the onboard electronics and transmitted through both 4–20 mA analogue output and RS485 Modbus RTU communication, allowing seamless integration with marine gas detection panels, automation systems, and safety monitoring systems.

A built-in graphic LCD display, capacitive touch controls, self-diagnostic functions, and hazardous area certifications make the ST450EC suitable for demanding marine environments requiring reliable fixed gas monitoring.

Note: Available gas types, measuring ranges, alarm limits, communication configuration, and installation requirements vary depending on the installed sensor and application. Always verify specifications using the equipment nameplate and official Consilium documentation.

Main Components

The Consilium Salwico ST450EC consists of several integrated components that provide accurate gas detection and system diagnostics.

Replaceable Electrochemical Sensor

The sensing element continuously measures the selected target gas.

Functions include:

• Continuous gas monitoring

• Accurate concentration measurement

• Stable long-term performance

• Easy replacement during maintenance

Graphic LCD Display

The integrated display provides:

• Live gas concentration

• Detector status

• Alarm indication

• Fault messages

• Calibration menus

• Service information

Capacitive Touch Interface

Touch-sensitive controls allow technicians to:

• Navigate menus

• Perform calibration

• Configure detector settings

• Review diagnostics

without opening the enclosure.

Signal Processing Electronics

Internal electronics process the sensor output and generate:

• 4–20 mA analogue output

• RS485 Modbus RTU communication

for integration with gas detection and automation systems.

Hazardous Area Enclosure

The robust enclosure protects internal electronics against:

• Corrosion

• Dust

• Moisture

• Mechanical impact

• Harsh marine environments

while meeting hazardous area installation requirements.

Electrical Terminal Block

Provides electrical connections for:

• 24 V DC Power Supply

• 4–20 mA Output

• RS485 Communication

• Ground Connection

Working Principle

The ST450EC continuously monitors ambient air for the selected target gas.

Step 1 – Air Sampling

Ambient air enters the sensing chamber through the gas inlet.

Step 2 – Gas Measurement

The installed electrochemical sensor reacts with the target gas and generates an electrical signal proportional to the measured gas concentration.

Step 3 – Signal Conversion

The detector electronics convert the measured value into:

• 4–20 mA analogue output

• Digital RS485 Modbus communication

while simultaneously displaying the gas concentration on the integrated LCD screen.

Step 4 – Alarm Processing

When gas concentration exceeds programmed alarm limits (or oxygen concentration moves outside safe levels), the connected gas detection controller may activate:

• Audible alarms

• Visual alarms

• Remote alarm panels

• Ventilation systems

• Safety shutdown systems

• Emergency notifications

depending on system configuration.

Advantages of the Consilium Salwico ST450EC

Multi-Gas Capability

Supports interchangeable electrochemical sensors for multiple gas types, reducing inventory requirements and increasing installation flexibility.

High Measurement Accuracy

Provides reliable gas concentration measurements for improved personnel protection and operational safety.

Integrated LCD Display

Local gas concentration display allows maintenance personnel to verify detector operation without accessing the control panel.

Replaceable Sensor Design

The replaceable sensing element minimizes downtime and reduces maintenance costs.

Advanced Diagnostics

Built-in self-monitoring continuously checks detector health and provides fault notifications for preventive maintenance.

Dual Communication

Supports both:

• 4–20 mA analogue output

• RS485 Modbus RTU communication

allowing compatibility with a wide range of marine control systems.

Hazardous Area Certified

Designed for safe installation in hazardous marine and offshore environments where flammable or toxic gases may be present.

Routine Maintenance

Routine inspection ensures reliable gas monitoring and extends detector service life.

Before Operation

Inspect:

• Detector housing

• Display status

• Power supply

• Wiring connections

• Alarm indication

• Communication status

Confirm normal operation before personnel enter monitored areas.

Weekly Inspection

Check:

• Housing condition

• Display readability

• Mounting hardware

• Wiring integrity

• Detector cleanliness

Remove dust or contamination from the detector exterior if required.

Monthly Inspection

Inspect:

• Sensor performance

• Electrical terminals

• Cable glands

• Communication status

• Output signal

• Functional operation

Perform bump testing where required by company procedures.

Annual Maintenance

Recommended maintenance includes:

• Calibration verification

• Bump testing

• Sensor response testing

• Output signal verification

• Display inspection

• Wiring inspection

• Sensor replacement (if required)

• Complete functional testing

Maintenance activities should be documented within the vessel's Planned Maintenance System (PMS).

Common Operational Problems

Although the ST450EC is designed for dependable long-term operation, certain issues may occasionally occur.

Problem: Sensor Fault

Possible Causes

• Sensor ageing

• Sensor contamination

• End of sensor service life

• Mechanical damage

Recommended Solution

Inspect the sensor and replace it if necessary.

Problem: No Output Signal

Possible Causes

• Power supply interruption

• Wiring fault

• Electronics failure

• Loose terminal connections

Recommended Solution

Verify the power supply, inspect field wiring, and test the detector electronics.

Problem: Calibration Failure

Possible Causes

• Expired calibration gas

• Incorrect calibration procedure

• Sensor deterioration

• Faulty sensor

Recommended Solution

Use certified calibration gas, repeat the calibration process, and replace the sensing element if calibration cannot be completed successfully.

Problem: Communication Failure

Possible Causes

• RS485 wiring fault

• Modbus configuration error

• Controller communication failure

• Cable damage

Recommended Solution

Verify communication settings, inspect wiring, and confirm Modbus configuration.

Problem: False Alarm

Possible Causes

• Calibration drift

• Environmental contamination

• Sensor ageing

• Electrical interference

Recommended Solution

Inspect the detector, recalibrate using certified gas, and replace the sensor if necessary.

Calibration Recommendations

Routine calibration is essential to maintain reliable gas detection.

Calibration is generally recommended:

• Every 6–12 months (or according to the manufacturer's recommendations)

• After sensor replacement

• Following exposure to high gas concentrations

• After major maintenance

• During annual safety inspections

• As specified in the vessel's Planned Maintenance System

Routine bump testing should also be performed according to company safety procedures.

Genuine Spare Parts Available

Ship Care Service supplies genuine replacement parts for the Consilium Salwico ST450EC Fixed Electrochemical Gas Detector, including:

• Electrochemical Sensors

• Sensor Cartridges

• Graphic LCD Modules

• Detector Electronics

• Calibration Adapters

• Dust Filters

• Cable Glands

• Terminal Blocks

• Mounting Brackets

• Detector Covers

• Communication Modules

• Genuine Calibration Kits

Availability depends on the installed detector configuration.

Buying Guide

Before purchasing a Consilium Salwico ST450EC or replacement components, consider the following:

Verify Target Gas

Confirm which gas is being monitored:

• Oxygen

• Hydrogen Sulphide

• Carbon Monoxide

• Hydrogen

Confirm Equipment Identification

Providing the following information helps identify compatible replacement parts:

• Model Number

• Serial Number

• Equipment Nameplate

• Installed Gas Type

• Vessel Name

• Existing Part Number (if available)

Choose Genuine Consilium Components

Using genuine replacement parts helps maintain:

• Accurate gas measurement

• Reliable alarm performance

• Long sensor life

• Full system compatibility

• Compliance with marine safety requirements

Work with an Experienced Marine Supplier

Select a supplier capable of providing:

• Genuine Consilium products

• Technical assistance

• Worldwide marine supply

• Spare parts support

• After-sales service

• Marine gas detection expertise

Why Marine Operators Choose the Consilium Salwico ST450EC

The Consilium Salwico ST450EC Fixed Electrochemical Gas Detector is trusted because it offers:

• Multi-gas monitoring capability

• Replaceable electrochemical sensors

• Graphic LCD display

• Capacitive touch controls

• Built-in diagnostics

• 4–20 mA and RS485 communication

• Hazardous area certification

• Reliable long-term operation in demanding marine and offshore environments