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.
| 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 |
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