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Product Features

Hazardous Area Fixed Gas Detector
Single detector head for all sensor types
Full range of combustible and toxic sensors
Supports up to three sensors per transmitter
Multiple communication protocols
Global regulatory approvals
Voted Best Industrial Hygiene - Fixed Permanent System

Delivery options

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Teledyne Meridian Hazardous Area Fixed Gas Detector

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SKU

Teledyne Meridian

Details

Teledyne Meridian Hazardous Area Fixed Gas Detector

The Teledyne Meridian is a Universal Gas Detector that utilizes a single detector head to easily accept all sensor types. Whether you need an infrared or catalytic bead sensor to detect combustible gases or an electrochemical sensor for a toxic environment, the Meridian is a great choice. 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 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 and 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 and Flame Detection while maintaining ease of use and peace of mind.

Product Specifications

Certifications
Global Approvals	IECEx, cCSAus, ATEX, INMETRO INDUSTRY 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 III Equipment 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
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 aluminium, 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 Contro	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
Installation
Weight	Aluminium 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

Gases

Symbol	Description
BR	Bromine
Cl₂	Chlorine
ClO₂	Chlorine Dioxide
CO	Carbon Monoxide Gas Detectors
Combustible % LEL	Combustible Percent Lower Explosive Limit (LEL)
F₂	Fluorine
H₂	Hydrogen
H₂S	Hydrogen Sulfide
HCl	Hydrogen Chloride
HCN	Hydrogen Cyanide
HF	Hydrogen Fluoride
NH₃	Ammonia
NO₂	Nitrogen Dioxide Gas Detectors
O₂	Oxygen Gas Detectors
O₃	Ozone
SiH₄	Silane
SO₂	Sulfur Dioxide

Certifications

Certification	Description
ATEX	A product regulation which ensures the safety of equipment intended for use in potentially explosive atmospheres in the European Union.
Canadian Approvals: CSA (c), UL (c), FMc, ETLc	A product regulation which ensures the safety of equipment intended for use in potentially explosive atmospheres in Canada.
CE	indicates that a product has been assessed by the manufacturer and deemed to meet EU safety, health and environmental protection requirements.
IECEx	The IECEx System is an international system for the safety of equipment installed in a potentially explosive atmosphere.
INMETRO	Brazil's Instituto Nacional de Metrologia, Normalizacao e Qualidade Industrial, also known as INMETRO, is the body responsible for recognizing certification organizations, which should be responsible for certification of products for compliance and author
US Approvals: CSA (us), FM (us), ETL (us), UL (us)	A product regulation which ensures the safety of equipment intended for use in potentially explosive atmospheres in the United States