Meridian Universal Gas Detector

Teledyne

The Meridian Universal Gas Detector is one detector with global approvals and a plug-and-play design, for toxic and combustible gases including; Chlorine, ClO2, Methane & 57 other gases.

Meridian Universal Gas Detector
  • Description
  • Specification
  • Application
  • Options
  • F.A.Q

Meridian Universal Gas Detector – Multiple Sensors

The Meridian universal gas detector allows up to three sensors to be attached to a single instrument. Use the multi-sensor detector to:

  • Monitor for toxic and combustible gases from the same detector.
  • Accurately detect gases particularly difficult to detect due to cross interference from other gases.
  • Reduce your overall cost per point of detection while increasing overall safety
  • Remotely mount sensors up to 100 feet from the gas detector to meet requirements of specific applications.

Sensor replacement without declassifying the area

The Meridian gas detector’s intrinsically safe, plug-and-play sensor design allows you to perform sensor replacements without powering down the instrument. You no longer need to declassify an area during sensor replacement. This allows you to maintain your plant production uptime and maintain a safe working environment for workers at the same time.

Universal Gas Detector

The term “universal” is frequently used in the industry to characterize gas detectors that address both toxic and combustible gases, but it is rare to find instruments that truly live up to that claim.

Upon close inspection, you will find that often the only characteristic that can be called “universal” is their user interface. In other words, the instrument provides a common user interface for both combustible and toxic gas detection.

At Teledyne Gas & Flame Detection, we believe “universal” should be much more than a common user interface, and we applied this thinking to every aspect of the design of the Meridian universal gas detector. You will find that the Meridian universal gas detector is the industry’s first truly universal gas detection platform.

Single Detector Head for all Applications

Whether you need an infrared or catalytic bead sensor to detect combustible gases or an electrochemical sensor for a toxic environment, the Meridian universal gas detector utilizes a single detector head to easily accept all gas sensor types.

There is no requirement for distinct personality boards in the gas detector or different detector heads to make the instrument behave as a combustible or toxic gas detector. The Meridian universal gas detector accepts all sensor types in one detector. Simply attach the specific toxic or combustible sensor to the universal detector head and the Meridian gas detector will automatically determine the type of gas to be detected.

Installation of the sensor is a simple plug-and-play action. At Teledyne Gas & Flame Detection, we are always looking to anticipate your future needs.

We designed the Meridian gas detection platform to be future proof, allowing you to take advantage of new sensing technologies from Teledyne Gas & Flame Detection while maintaining ease of use and peace of mind.

Meridian Universal Gas Detector Single Standard for Accessories

The Meridian gas detector has a single set of accessories for your application needs—another merit of a truly universal gas detection platform. Because all accessories for the Meridian universal gas detector are designed for the universal detector head, there is no need for purchasing separate accessories for toxic and combustible applications.

Meridian Universal Gas Detector
Meridian Universal Gas Detector Certifications
  • Canadian Approvals: CSAc, ULc, FMc, ETLc
  • Global Approvals: IECEx, cCSAus, ATEX, INMETROINDUSTRY CANADA, CE, SIL-2 (Third Party Certification by TUV-Rheinland)
  • Area Classification: Class I Div. 1 Group ABCD, Class II Div. 1 Group EFG, Class IIIEquipment Group I/II, Zone 0/20 & Zone 1/21, IIC
Environmental
  • Operating Temperature: -40° to 75° Celsius
  • Humidity: 5–95% RH (non condensing)
  • Storage Temperature: -55° to 75° Celsius
Meridian Universal Gas Detector Specifications
  • Power: 2 wire, 3 wire, 4 wire
  • Operating Voltage 3/4 wire: 10-30 VDC (24 VDC nominal)
  • Operating Voltage 2 wire: 18-30 VDC (24 VDC nominal)
  • Power Consumption: 2.2 – 3.2 Watts based on sensor configuration Add 2.6 Watts to any configuration if heated display is used
  • Enclosure Material: Copper-free aluminum, 316 stainless steel
  • Enclosure Ingress Protection: NEMA 4X, IP66
  • Terminal Junction Box Material: Copper-free aluminum, 316 stainless steel
  • Terminal Junction Box Conduit Connection: 3/4″ NPT (M20 adapter available)
  • Communication: 4–20 mA, MODBUS; Optional HART
  • Maximum 4–20 loop load, OHMS (@24 VDC): 680 Ohms current source, 680 Ohms current sink
  • Alarms: 3 programmable alarms with set and reset (adjustable deadband); 1 fail safe system fault
  • Relays: 4 Form C relays, rated 5 Amp at 30 VDC/240 VAC, resistive loads
  • Display: Graphical LCD display visible in bright sunlight. Display indicates Sensor Name, Gas Name, Full Scale of Range, Gas Concentration, Fault, Alarm Status, Trend Graph with selectable time scale showing current reading, set points and full scale. Display provides simple, intuitive calibration instructions and guides user through the calibration process.
  • Languages: English, Portuguese, French, Spanish, Chinese, Russian
  • User Configuration Control: Transmitter GUI, HART hand-held Communicator, MODBUS
  • User Interface Access Control: Transmitter provides controlled access to sensor range, alarm settings and other safety functions; password protection for secure configuration control
  • Memory: Non-volatile memory ensures configuration parameters are retained in the event of power loss
Sensor specifications
  • Sensor Types: Combustible: Catalytic bead Electrochemical: Standard and Rock Solid sensors
  • Number of Sensors: Supports up to 3 sensors per detector
Meridian Universal Gas Detector Installation
  • Weight: Aluminum enclosure: 6.5 lbs (3 kg); Stainless steel enclosure: 11 lbs (5 kg)
  • Wiring: Detector accepts industry standard 2-wire, 3-wire or 4-wire inputs

Meridian Universal Gas Detector is certified using the highest international standards for global use. Our goal is to offer customers one instrument that can be used across regions. So whether you procure the instrument for use in a chemical plant in North America, on an FPSO in Latin America or in an oil refinery in Europe or Asia, the instrument will have the necessary approvals required for use in that region. Unlike industry standard offerings, the Meridian gas detector is not a collection of gas detectors, each certified for use in a particular region. What makes it truly universal is that it is a single detector that has all the required approvals for global use.

Designed with safety and reliability in mind, the Meridian universal gas detector is suitable for use in SIL-2 and SIL-3-rated systems under the IEC 61508 standards, certified by TUV-Rheinland, an independent third-party agency. Third party SIL certification validates that the product meets the most rigorous standards for reliability and performance and confirms its ability to reduce your potential for downtime and increase your safety factor.

Combustible Gases
  • Acetaldehyde
  • Acetone
  • Acetylene
  • Ammonia
  • Benzene
  • Butadiene
  • Butane
  • Butanol
  • Butyl Acetate
  • Chlorobenzene
  • Cyclohexane
  • Decane
  • Diethyl Ether
  • Ethane
  • Ethanol
  • Ethyl Acetate
  • Ethylbenzene
  • Ethylene
  • Ethylene Oxide
  • Heptane
  • Hexane
  • Hydrogen
  • Isobutane
  • Isobutylene
  • Isopentane
  • Isopropanol
  • Methane
  • Methanol
  • Methyl Chloride
  • Methylene Chloride
  • Methyl Ethyl Ketone (MEK)
  • Octane
  • Octamethyl Trisiloxane
  • Pentane
  • Propane
  • Propylene
  • Propylene Oxide
  • Styrene
  • Tetrahydrofuran
  • Toluene
  • Vinyl Chloride
  • Xylene

 

Toxic Gases

  • Ammonia
  • Bromine
  • Carbon Monoxide
  • Chlorine
  • Chlorine Dioxide
  • Fluorine
  • Hydrogen*
  • Hydrogen Chloride
  • Hydrogen Cyanide
  • Hydrogen Fluoride
  • Hydrogen Sulfide
  • Nitrogen Dioxide
  • Oxygen
  • Ozone
  • Silane
  • Sulfur Dioxide

Rock Solid Sensor available for toxic gases highlighted in green.

The Rock Solid Advantage More Reliable, Accurate Detection

  • Minimal drift: Performs reliably in harsh real-world environments by significantly reducing effects of temperature and humidity.
  • High specificity: Allows for much lower interference from other gases than conventional gas sensors, reducing cross interference from other gases present and reduces the likelihood of a false alarm.
  • Digital ID: Provides automatic recognition when sensors are replaced, reducing the likelihood of user error during maintenance in the field.
  • Broader toxic gas detection: Several ranges are available for each gas to optimize the sensor’s response in the environment.
 
The following accessories are available for the Meridian Universal Gas Detector:
  • CALIBRATION ADAPTER: Easily attaches to the sensor housing to deliver calibration gases to the detector head.
  • FLOW CELL: Gas sample flow to and through the sensor head.
  • DELUGE GUARD: Protects the sensor from heavy rain and water spray from plant wash down routines.
  • DUCT MOUNT KIT: Allows you to remote mount sensors onto ventilation ducts.
  • SENSOR SIMULATOR: A useful commissioning and trouble-shooting tool to locally simulate gas concentration and trigger a response from the detector.
  • UNIVERSAL MOUNTING KIT: With predefined cut outs, you can easily replace older gas detectors with the Meridian detector, making it an ideal choice for retrofit applications.
  • SUN SHIELD: Deflects direct sunlight from the Meridian reducing glare on the display. It also helps reduce the internal temperature of the transmitter.

Sensor Specifications PDF

Meridian features a common user interface, and a single detector head that accepts all sensor types, a single set of accessories and global approvals that allow it to be used anywhere in the world

Meridian features a single detector head that works for all applications- electrochemical, and combustible (catalytic bead) sensors.
No, due to Meridian’s intrinsically safe, plug-and play sensor design you can perform sensor replacements without powering down the instrument.
Meridian’s sensors provide reliable and accurate detection through several key features: minimal drift (reliable performance even in harsh temperature and humidity environments), high specificity (reduced cross interference from other gases thus reducing the likelihood of a false alarm), digital ID (provides automatic recognition when sensors are replaced) and broader toxic gas detection (several ranges are available for each gas).
Meridian is suitable for use in SIL2 and SIL3 rated systems under the IEC 61508 standards as certified by TÜV Rheinland.
With the Meridian gas detector, you can calibrate a toxic sensor to a particular gas level and then make adjustments to the range later without having to re-calibrate the sensor for the new range. To optimize maintenance workload, you can calibrate sensors in the lab and set them to a default range. Upon installation, the range on the sensors can be adjusted to the requirements of the specific location

Up to three sensors can be attached to a single instrument. This allows you to monitor for toxic and combustible gases from the same detector.

The Meridian Gas Detector supports industry standard protocols including: 4-20 mA analog, MODBUS, and Wired HART.

Meridian Universal Gas Detector – Multiple Sensors

The Meridian universal gas detector allows up to three sensors to be attached to a single instrument. Use the multi-sensor detector to:

  • Monitor for toxic and combustible gases from the same detector.
  • Accurately detect gases particularly difficult to detect due to cross interference from other gases.
  • Reduce your overall cost per point of detection while increasing overall safety
  • Remotely mount sensors up to 100 feet from the gas detector to meet requirements of specific applications.

Sensor replacement without declassifying the area

The Meridian gas detector’s intrinsically safe, plug-and-play sensor design allows you to perform sensor replacements without powering down the instrument. You no longer need to declassify an area during sensor replacement. This allows you to maintain your plant production uptime and maintain a safe working environment for workers at the same time.

Universal Gas Detector

The term “universal” is frequently used in the industry to characterize gas detectors that address both toxic and combustible gases, but it is rare to find instruments that truly live up to that claim.

Upon close inspection, you will find that often the only characteristic that can be called “universal” is their user interface. In other words, the instrument provides a common user interface for both combustible and toxic gas detection.

At Teledyne Gas & Flame Detection, we believe “universal” should be much more than a common user interface, and we applied this thinking to every aspect of the design of the Meridian universal gas detector. You will find that the Meridian universal gas detector is the industry’s first truly universal gas detection platform.

Single Detector Head for all Applications

Whether you need an infrared or catalytic bead sensor to detect combustible gases or an electrochemical sensor for a toxic environment, the Meridian universal gas detector utilizes a single detector head to easily accept all gas sensor types.

There is no requirement for distinct personality boards in the gas detector or different detector heads to make the instrument behave as a combustible or toxic gas detector. The Meridian universal gas detector accepts all sensor types in one detector. Simply attach the specific toxic or combustible sensor to the universal detector head and the Meridian gas detector will automatically determine the type of gas to be detected.

Installation of the sensor is a simple plug-and-play action. At Teledyne Gas & Flame Detection, we are always looking to anticipate your future needs.

We designed the Meridian gas detection platform to be future proof, allowing you to take advantage of new sensing technologies from Teledyne Gas & Flame Detection while maintaining ease of use and peace of mind.

Meridian Universal Gas Detector Single Standard for Accessories

The Meridian gas detector has a single set of accessories for your application needs—another merit of a truly universal gas detection platform. Because all accessories for the Meridian universal gas detector are designed for the universal detector head, there is no need for purchasing separate accessories for toxic and combustible applications.

Meridian Universal Gas Detector
Meridian Universal Gas Detector Certifications
  • Canadian Approvals: CSAc, ULc, FMc, ETLc
  • Global Approvals: IECEx, cCSAus, ATEX, INMETROINDUSTRY CANADA, CE, SIL-2 (Third Party Certification by TUV-Rheinland)
  • Area Classification: Class I Div. 1 Group ABCD, Class II Div. 1 Group EFG, Class IIIEquipment Group I/II, Zone 0/20 & Zone 1/21, IIC
Environmental
  • Operating Temperature: -40° to 75° Celsius
  • Humidity: 5–95% RH (non condensing)
  • Storage Temperature: -55° to 75° Celsius
Meridian Universal Gas Detector Specifications
  • Power: 2 wire, 3 wire, 4 wire
  • Operating Voltage 3/4 wire: 10-30 VDC (24 VDC nominal)
  • Operating Voltage 2 wire: 18-30 VDC (24 VDC nominal)
  • Power Consumption: 2.2 – 3.2 Watts based on sensor configuration Add 2.6 Watts to any configuration if heated display is used
  • Enclosure Material: Copper-free aluminum, 316 stainless steel
  • Enclosure Ingress Protection: NEMA 4X, IP66
  • Terminal Junction Box Material: Copper-free aluminum, 316 stainless steel
  • Terminal Junction Box Conduit Connection: 3/4″ NPT (M20 adapter available)
  • Communication: 4–20 mA, MODBUS; Optional HART
  • Maximum 4–20 loop load, OHMS (@24 VDC): 680 Ohms current source, 680 Ohms current sink
  • Alarms: 3 programmable alarms with set and reset (adjustable deadband); 1 fail safe system fault
  • Relays: 4 Form C relays, rated 5 Amp at 30 VDC/240 VAC, resistive loads
  • Display: Graphical LCD display visible in bright sunlight. Display indicates Sensor Name, Gas Name, Full Scale of Range, Gas Concentration, Fault, Alarm Status, Trend Graph with selectable time scale showing current reading, set points and full scale. Display provides simple, intuitive calibration instructions and guides user through the calibration process.
  • Languages: English, Portuguese, French, Spanish, Chinese, Russian
  • User Configuration Control: Transmitter GUI, HART hand-held Communicator, MODBUS
  • User Interface Access Control: Transmitter provides controlled access to sensor range, alarm settings and other safety functions; password protection for secure configuration control
  • Memory: Non-volatile memory ensures configuration parameters are retained in the event of power loss
Sensor specifications
  • Sensor Types: Combustible: Catalytic bead Electrochemical: Standard and Rock Solid sensors
  • Number of Sensors: Supports up to 3 sensors per detector
Meridian Universal Gas Detector Installation
  • Weight: Aluminum enclosure: 6.5 lbs (3 kg); Stainless steel enclosure: 11 lbs (5 kg)
  • Wiring: Detector accepts industry standard 2-wire, 3-wire or 4-wire inputs

Meridian Universal Gas Detector is certified using the highest international standards for global use. Our goal is to offer customers one instrument that can be used across regions. So whether you procure the instrument for use in a chemical plant in North America, on an FPSO in Latin America or in an oil refinery in Europe or Asia, the instrument will have the necessary approvals required for use in that region. Unlike industry standard offerings, the Meridian gas detector is not a collection of gas detectors, each certified for use in a particular region. What makes it truly universal is that it is a single detector that has all the required approvals for global use.

Designed with safety and reliability in mind, the Meridian universal gas detector is suitable for use in SIL-2 and SIL-3-rated systems under the IEC 61508 standards, certified by TUV-Rheinland, an independent third-party agency. Third party SIL certification validates that the product meets the most rigorous standards for reliability and performance and confirms its ability to reduce your potential for downtime and increase your safety factor.

Combustible Gases
  • Acetaldehyde
  • Acetone
  • Acetylene
  • Ammonia
  • Benzene
  • Butadiene
  • Butane
  • Butanol
  • Butyl Acetate
  • Chlorobenzene
  • Cyclohexane
  • Decane
  • Diethyl Ether
  • Ethane
  • Ethanol
  • Ethyl Acetate
  • Ethylbenzene
  • Ethylene
  • Ethylene Oxide
  • Heptane
  • Hexane
  • Hydrogen
  • Isobutane
  • Isobutylene
  • Isopentane
  • Isopropanol
  • Methane
  • Methanol
  • Methyl Chloride
  • Methylene Chloride
  • Methyl Ethyl Ketone (MEK)
  • Octane
  • Octamethyl Trisiloxane
  • Pentane
  • Propane
  • Propylene
  • Propylene Oxide
  • Styrene
  • Tetrahydrofuran
  • Toluene
  • Vinyl Chloride
  • Xylene

 

Toxic Gases

  • Ammonia
  • Bromine
  • Carbon Monoxide
  • Chlorine
  • Chlorine Dioxide
  • Fluorine
  • Hydrogen*
  • Hydrogen Chloride
  • Hydrogen Cyanide
  • Hydrogen Fluoride
  • Hydrogen Sulfide
  • Nitrogen Dioxide
  • Oxygen
  • Ozone
  • Silane
  • Sulfur Dioxide

Rock Solid Sensor available for toxic gases highlighted in green.

The Rock Solid Advantage More Reliable, Accurate Detection

  • Minimal drift: Performs reliably in harsh real-world environments by significantly reducing effects of temperature and humidity.
  • High specificity: Allows for much lower interference from other gases than conventional gas sensors, reducing cross interference from other gases present and reduces the likelihood of a false alarm.
  • Digital ID: Provides automatic recognition when sensors are replaced, reducing the likelihood of user error during maintenance in the field.
  • Broader toxic gas detection: Several ranges are available for each gas to optimize the sensor’s response in the environment.
 
The following accessories are available for the Meridian Universal Gas Detector:
  • CALIBRATION ADAPTER: Easily attaches to the sensor housing to deliver calibration gases to the detector head.
  • FLOW CELL: Gas sample flow to and through the sensor head.
  • DELUGE GUARD: Protects the sensor from heavy rain and water spray from plant wash down routines.
  • DUCT MOUNT KIT: Allows you to remote mount sensors onto ventilation ducts.
  • SENSOR SIMULATOR: A useful commissioning and trouble-shooting tool to locally simulate gas concentration and trigger a response from the detector.
  • UNIVERSAL MOUNTING KIT: With predefined cut outs, you can easily replace older gas detectors with the Meridian detector, making it an ideal choice for retrofit applications.
  • SUN SHIELD: Deflects direct sunlight from the Meridian reducing glare on the display. It also helps reduce the internal temperature of the transmitter.

Sensor Specifications PDF

Meridian features a common user interface, and a single detector head that accepts all sensor types, a single set of accessories and global approvals that allow it to be used anywhere in the world

Meridian features a single detector head that works for all applications- electrochemical, and combustible (catalytic bead) sensors.
No, due to Meridian’s intrinsically safe, plug-and play sensor design you can perform sensor replacements without powering down the instrument.
Meridian’s sensors provide reliable and accurate detection through several key features: minimal drift (reliable performance even in harsh temperature and humidity environments), high specificity (reduced cross interference from other gases thus reducing the likelihood of a false alarm), digital ID (provides automatic recognition when sensors are replaced) and broader toxic gas detection (several ranges are available for each gas).
Meridian is suitable for use in SIL2 and SIL3 rated systems under the IEC 61508 standards as certified by TÜV Rheinland.
With the Meridian gas detector, you can calibrate a toxic sensor to a particular gas level and then make adjustments to the range later without having to re-calibrate the sensor for the new range. To optimize maintenance workload, you can calibrate sensors in the lab and set them to a default range. Upon installation, the range on the sensors can be adjusted to the requirements of the specific location

Up to three sensors can be attached to a single instrument. This allows you to monitor for toxic and combustible gases from the same detector.

The Meridian Gas Detector supports industry standard protocols including: 4-20 mA analog, MODBUS, and Wired HART.