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DG7 Series – Gas Detectors
Intelligent Toxic and Flammable Gas Detectors
Applications
- Refineries
- Offshore drilling and production platforms
- Processing and storage plants
- Chemical plants.
The DG7 Series is a group of intelligent gas detectors employs a wide choice of sensor types.
The DGI -TT7-E is used for Toxic gases or Oxygen monitoring.
The DG-TT7-S is a solid-state metal oxide semiconductor.
The DG-TX7 employs a pair of OXYCOL catalytic sensors
All DGi-TT7 are constructed from a common housing and electronics with the detection properties being determined by the type of sensor (cartridge) used. A wide range of cells are available, these cells are intrisically safe protected, and may be replaced with the detector powered which minimises the system down time. The intelligent, microprocessor driven unit is fully configurable using a wireless hand-held terminal (TLU) or by using the hard wired HART option giving true flexibility to the installer and reduced service costs.
Elements such as relay operation and alarm levels are all set via the TLU, a hazardous area approved hand-held unit. The unit may be interfaced directly with a wide range of panels, controllers and PLC’s etc. Its integral daylight readable alphanumeric display indicates local status and alarm level.
The device has been designed for ease of operation and maintenance.
Documentation
DG-TT7-E – English
DG-TX7 – English
DG-TX7 – Spanish
User Manuals - Magnetic interface type
User Manuals - Without magnetic interface
Accessories
Certifications
Certification
Description
| ATEX | A product regulation which ensures the safety of equipment intended for use in potentially explosive atmospheres in the European Union. |
| CE | indicates that a product has been assessed by the manufacturer and deemed to meet EU safety, health and environmental protection requirements. |
| China Ex | Testing and certifications providers in China |
| 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 |
| SIL | Safety Integrity Level (SIL) defined as a relative level of risk-reduction provided by a safety function, or to specify a target level of risk reduction |
Gases
Symbol
Description
| Combustible % LEL | Combustible Percent Lower Explosive Limit (LEL) |