• ​Sensor: IR Sensor
• Installation: with Increased Safety or flameproof
• Interface: 4-20 mA and Bus, HART^®
  
• IP class: IP class: IP66/67 and SIL 2
• Special: Response Time <1 scond

Two models of the Dräger PIR 7000 are available—type 334 and type 340. Each model works with a different measuring wavelength, thus detecting the broadest possible range of flammable substances with superior accuracy.

Following the success of the most stable point infrared gas detector worldwide—the Dräger Polytron IR— Dräger has introduced the PIR 7000, which encompasses the latest in revolutionary technology.

Based on patented innovations, the Dräger PIR 7000 combines a maximum light collecting construction with a 4-beam signal stabilizing system. The total optical system uses no light beam split, simply a set of various reflectors. This double-compensating optical system is very resistant to accumulation of dirt on the optical surface, as well as known influences such as dust, fog and insects, which are frequently found in the measuring cuvette. Due to its non-imaging construction, the measuring signal is not affected by a partial beam block.

This innovative optical system ensures that the Dräger PIR 7000 fulfills the customer requirements of no false alarms, longer service intervals, and a drift-free signal output.

For optimal safety, it is essential to be informed about a potential hazard as early as possible. A reliable gas monitor that detects leakages at the earliest stage allows you to initiate safety measures on site.

To support fast response, the Dräger PIR 7000 offers a configurable response mode that lets you choose between “normal” or “high speed” response, subject to the application. By using the “high speed” option, and combining it with the lowest feasible alarm threshold, the Dräger PIR 7000 shortens the reaction time in case of an alarm. Leakages can be detected at the earliest stage of their existence.

The Dräger PIR 7000 has a maximum number of default settings, but remains fully flexible to meet your needs on an application-by-application basis—whether you want to reduce measuring ranges, configure special signals (fault, beam block warning, maintenance), or adjust LEL values that are different across regions, all coupled with the configurable gas library (for other substances to be monitored). All these features of the Dräger PIR 7000 enable you to set up every device exactly to your specific needs and preferences.

Almost two decades of experience with infrared technology has enabled Dräger to continuously enhance product quality. With the Dräger PIR 7000, the entire product—hardware and software—has been developed according to the Functional Safety standard EN 61508.

The International Electrotechnical Commission's (IEC) standard IEC 61508 defines Safety Integrity Level (SIL) using requirements grouped into two broad categories: hardware safety integrity and systematic safety integrity. A device or system must meet the requirements for both categories to achieve a given SIL.

The Drager PIR 7000 not only fulfills but exceeds SIL 2 requirements.

• Configurable gas library—methane, propane and ethylene fixed, up to 10 additional substances can be uploaded
  
• Multiple mounting and configuration capabilities (signals acc. to NAMUR NE 43)
  
• Precise and stable measurement
  
• Response of less than 1 second
  
• Beam block warning in case of dirty optics for preventive maintenance
  
• Long maintenance intervals
  
• Extended temperature range of up to +77°C/+170°F
  
• Double-compensating, non-imaging optics (using 4-beam technology)
  
• Single cable multidrop capability using HART^® communication
  
• Conventional 4 to 20 mA analog signal output
  
• Hermetically sealed SS 316L enclosure
  
• Integrated tag holder for individual labelling
  
• No moving parts
  
• Resistant to shock and vibration up to 4 G
  
• Continuous self-testing in the context of the IEC/EN 61508 standard
  
• Developed and manufactured according to the SIL guidelines, SIL 2 certified by TÜV
  
• Ex approvals for worldwide application: ATEX, IECEx, UL, CSA
  
• Dust approval for zones 21 and 22
  
• Typical lifetime greater than 15 years